Intake heater light on freightliner - On rare occasions, the Cummins Grid Heater fails and drops metal into the intake manifold causing a catastrophic engine failure. This video explains the is...

 
CASCADIA MAINTENANCE MANUAL Models: CA113DC CA113SLP CA125DC CA125SLP STI-478-6 (02/03/2022) Published by Daimler Truck North America LLC 4747 N. Channel Ave. Portland, OR 97217. My tactical promos

Intake heater light keeps coming o. And off and truck won’t maintain speed. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix.Leading Solutions for Cold Starts & Emissions Reduction. Air Intake Heaters, also known as grid and manifold heaters, provide solutions for diesel applications such as On-Highway, Off-Road and Power Generation. Powered by the vehicle battery, air intake heaters provide an on-board, stand-alone cold weather starting aid without driver intervention.5 posts · Joined 2017. #1 · Apr 19, 2017. I have an 05 2500 with a stage 2 bd turbo, 90 over injectors and a smarty touch tuner. My grid heater light keeps coming on while I'm driving along with ten dings. It normally comes on while driving 65+ then will go away. I'm not throwing any codes.%PDF-1.4 %âãÏÓ 4520 0 obj > endobj xref 4520 25 0000000016 00000 n 0000003330 00000 n 0000003476 00000 n 0000003514 00000 n 0000003737 00000 n 0000003880 00000 n 0000004524 00000 n 0000005195 00000 n 0000005234 00000 n 0000005313 00000 n 0000005390 00000 n 0000005563 00000 n 0000006101 00000 n 0000006758 00000 n 0000007660 00000 n 0000008440 00000 n 0000009180 00000 n 0000009889 00000 n ...DDC-SVC-MAN-0040.PDF - MBE 900 ENGINE 2007 OPERATOR'S GUIDE - Freightliner ... Detroit Diesel®1. Turn on ignition. 2. Wait till you hear the systems boot up (on mine, six clicks) and wait for "wait light" to go out. 3. Turn off ignition and repeat the sequence. (this allows the preheater to perform twice ensuring good …Intake Heater Light: Troubleshooting Tips for Bus & Freightliner | JustAnswer. Ask an Expert. Car Questions. Truck Repair. This answer was rated: ★★★★★. The intake heater light flashes when the bus is cold however… The intake heater light flashes when the bus is cold however once it warms up, it doesn't come back on until the engine cools off.For people using gas water heaters, two options are offered--natural gas or propane. According to Energy Star, 15 percent of a home’s energy use is attributed to heating water. Bot...Sep 20, 2020 · The air intake heater control helps the combustion process while starting in cold temperatures by controlling the heating elements in the engine's intake air system. The ECM controls the heating elements in two phases, pre-heat and post-heat. The amount of time that the intake air heater remains on depends on the intake manifold temperature at ... SAF-T-LINER C2. Parts Reference Manual ( Interior ) INTRODUCTION. The Thomas Built Buses SAF-T-LINER C2 parts reference manual provides the user with a tool to assist in identifying needed replacement parts and service information for their bus. It is intended to be used as a guide to help locate service parts information that resides within ...Immerse the IAT sensor in a cup of ice water (below 66F ambient temp for 05 truck) should trigger the grid heater operation. If not then the relay doesn't get the 12V trigger signal from ECM for some reasons or the relay ground is missing. _________________. '05 2500 QC SLT SB 4X4 48RE Smarty Jr 205k miles.grid heater (P/N: EA0001595204). Note that paint on the engine may hide the true color of the grid heater. A small amount of paint may have to be scraped off the grid heater to find it’s true color. 6. Mount the relay (P/N: A0045459205) to the relay bracket (P/N: A9061531340) using supplied M6x12 bolts (P/N: N910105006002)Re: CAT 3126B "Wait to Start" Light. « Reply #4 on: October 23, 2012, 05:05:05 PM ». Rod, Certainly sounds like a loose connection or the pre-heat relay/solenoid with the points sticking. Locate the relay. With a voltmeter, check for 12 VDC on the large wire out to the intake heater when someone turn the key on.09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . 13–00 Safety Precautions ; 13–01 Air Compressor Inspection ; 15 Alternators and Starters . 15–00 Safety Precautions ; 15–01 Alternator, Battery, and Starter Connections Check ; 20 Engine Cooling/Radiator . 20–00 Safety Precautions ; 20–01 ...Yes, that is correct. You have to remove the intake housing from the base and visually inspect the heater element. If you locate the plug on the heater, you can verify it is getting power before removing the intake housing. If the element is getting power. The element assembly simply needs to be replaced. Air intake restriction vacuum is measured in inches of water (inH 2 O). For vehicles equipped with a graduated indicator or a restriction gauge on the dash, check the gauge with the engine off. If the yellow signal stays locked in the red zone once the engine is shut down, or is at or above 25 inH 2 O, the air cleaner element needs to be replaced. Replacing an old water heater can help ensure that you always have enough hot water in your home, and it might also save you money on your income taxes. The Internal Revenue Servic...Jun 21, 2019 · The intake heater only engages on a cool engine to provide warm air to the combustion chambers so the engine will have good heat for combustion of the fuel. It makes the air more dense to allow the combustion during the compression stroke. The intake heater doesn't need to come on any other time. Custom-built Freightliner vehicles are equipped with various chassis and cab components. Not all of the information contained in this manual applies to every vehicle. For details about components in your ve-hicle, refer to the chassis specification pages in-cluded in all new vehicles and to the vehicle specifi-cation decal, located inside the ...Find somewhere else to keep these household objects. In addition to using less energy, part of the appeal of tankless hot water heaters is that they take up less space than traditi...Freightliner BUSINESS CLASS M2 – fuse box diagram Year of production: Main Fuse Box Number Function Ampere ratting [A] F1 VCU (MBE900 only) 10 F2 Blower Motor 30 F3 Engine ECU 20 F4 Transmission Control Unit 30 F5 Ignition Switch 5 F6 Spare — F7 Bulkhead Module 30 F8 ICU 10 F9 Transmission Control Unit …There is a heater element that can be between 750 and 1,500 watts that extends into the engine's cooling jacket. The benefit to this system is that you don't have any heater hoses to worry about replacing or leaking and the heat is put directly into the engine, where it's more efficient. ... As soon as the light goes out, the intake manifold ...Freightliner MBFME190887 Relay Intake Air Heater Co . Brand: Freightliner. Currently unavailable. We don't know when or if this item will be back in stock. Important information. To report an issue with this product, click here. Product Description . Freightliner MBFME190887 Relay Intake Air Heater Co.11. Inspect the intake pressure/temperature sensor and wiring connector for signs of damaged, bent, spread, corroded or unseated (pushed out) pins and signs of moisture in the connector or wire damage near the connector. Is there any sign of damage present? a. Yes; repair as necessary. Go to step 16. b. No; replace intake pressure/temperature ...20–03 Coolant Heater Check, Webasto Inspect the coolant heater every 12 months. 00 General Information Vehicle Maintenance Schedule Table: 00–02 00/2 Walk-In Van Chassis Maintenance Manual, May 2022Freightliner Custom Chassis ... 09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . ... 83 Heater and Air Conditioner . 83–00 Safety Precautions ; 83–01 Air Conditioner Inspection ; 83–02 HVAC Air Filter Replacement ; 88 Hood, Grille, and Cab Fenders ...nskyline34 Discussion starter. 1706 posts · Joined 2013. #5 · Dec 5, 2023. Well ordered a complete GDP setup - intake manifold, intake horn, and their high flow grid heater. More than I wanted to spend, but the only company that makes them specifically for the C&C trucks and plus I like the idea of the added flow of the intake horn.Jan 22, 2024 · I have a 2004 FREIGHTLINER M2-16 with a DT 466 Diesel engine. While driving it it runs fine but at decceleration at almost full stop, it starts shaking and acting up and the intake heater light comes … read more Take the rated watts for your heater divide by operating voltage gives you your amps. So if I’ve done the math correctly my engine block heater a 1000w unit using a 120 volt line draws 8.33 amps. 1000 / 120 = 8.33. Location: West Palm Beach, FL. USA.Oct 31, 2011 · The grid heaters on our Vision's here will continue to cycle causing the volt gauge to drop, the STOP light and TOO LOW with pic of battery, until the engine oil temp and the engine water temp reach 120 degrees cumulatively. So basically 60 degrees of temp on each one is suppose to stop grid heater from coming on. Here I show how to diagnose a air intake heater circuit on a Cummins Isc EngineMar 29, 2010 · We have had numerous inake heater relays fail on 3116/3126 engines. The C7 engines use a heavier relay. The earlier relays are to small to carry the 90+ amp load. On the 3116/3126 engines we have been using the Blue Bird relay that is used for the body heater/light functions. It does require replacing the terminal ends with something much heavier. 8 posts · Joined 2008. #1 · Jan 4, 2009. I have tested the relays (solenoids) now trying to test the actual grid heater just need to know how many ohms resistance should the element have. I know there is power to the heater just need to test the heater to make sure it is working correctly. Thanks for your time.2020 freightliner M2-106 with 3 lights on.1 Check engine light. 2 Amber engine light 3. Amber low Def light with blinking red light. My def tank if full but keeps indicating i have no def fluid. Drove … read moreFreightliner AC systems are much larger than most vehicle systems, and they use a larger condenser and an air compressor to cool the air. An evaporator is used on freightliner truc...Instead of glow plugs, the heater heats up the intake air to help combustion in cold weather. If it doesn't work, you'll have problems starting in cold weather. On our coach.......when the key is turned to the ON position (not starting position) there is a light that illuminates on the dash.I run four sets of them 2 in the head light and 2 in the fog and the never go out not when starting or grid heater 2001 Dodge 2500 quad cab , Auto, 306,xxx miles, S&B Cold Air Intake, Expandit 5 inch straight piped system, Smarty, Edge Insight CS for gauges , HID Fog Lights 8000k, HID Head Lights 4300k, Electric/Heated tow mirrors, Painted ...TWR. 1940 posts · Joined 2011. #3 · Jan 19, 2016. check the intake manifold air temperature sensor this sensor tells the ECM when to turn the grid heater on by what temp the intake is as i recall anything under 66 degrees it does not turn the heater on anything below 66 at start it turns it on the grid heater.EPA07 MBE 4000 OPERATOR'S MANUAL. HOT COOLANT To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure.Intake Manifold Heater Light Stays On!! 5669 Views 5 Replies 4 Participants Last post by ColinP, Jan 8, 2016. P. pjcovey40 Discussion Starter ... NEW CASCADIA MAINTENANCE MANUAL Models: PT126SLP PT126DC PE116SLP PE116DC STI-500-10 (02/03/2022) Published by Daimler Trucks North America LLC 4747 N. Channel Ave. Leading Solutions for Cold Starts & Emissions Reduction. Air Intake Heaters, also known as grid and manifold heaters, provide solutions for diesel applications such as On-Highway, Off-Road and Power Generation. Powered by the vehicle battery, air intake heaters provide an on-board, stand-alone cold weather starting aid without driver intervention.Nov 6, 2011. #4. Yes, when you turn the key to the run position the gauges will sweep from the lowest values to the highest and the solenoids in the air valves will do a "chuff" test. Then the gauges will go to the positons for the conditions present when the engine is off. I'm not sure of the 5.9 Cummins engine has an intake manifold grid ...Cat C7 Intake Heater Relay Signal and Ground New Topic Reply to Topic Printer Friendly5 Driver Controls. 6 Seats and Restraints. 7 Climate Control. 8 Cab Features. 9 Engine Starting, Operation, and Shutdown. 10 Optional Engine Systems. 11 Emissions and Fuel Efficiency. 12 Brake Systems. 13 Manual Transmissions and Clutch.superman279. 2113 posts · Joined 2010. #17 · Jul 27, 2013. No start when cold (depending on what 'cold' is to you) is more likely injector related. As far as the grid heater light goes, check for codes with the key trick. '03 2500 QCLB 4x4 47RE One Piece Driveshaft.View and Download freightliner 122SD maintenance manual online. 122SD trucks pdf manual download. Also for: Coronado 132. ... Heater and Air Conditioner 88 ....Hood, Grille, ... Page 32 Air Intake 01/17/2012 f090496 1. Steel Plate 2. Rubber Fig. 6, Mounting Isolator 09/3 122SD and Coronado 132 Maintenance Manual, February 2015...CODES: Fault Code: 2555. PID (P), SID (S): S070. SPN: 729. FMI: 3. Lamp: Amber. REASON: Intake Air Heater 1 Circuit - Voltage Above Normal or Shorted to High Source. High voltage detected at the intake air heater signal circuit. EFFECT: The intake air heaters may be ON or OFF all the time.When I turn my truck on the "Wait to start" light does not come on. I noticed it about a week ago and tried fixing it last weekend. ... 1999 Dodge Ram 2500 Laramie 4x4 Quad cab Automatic, Air Dog 150, S&B Cold air intake and intake elbow, MBRP 4 inch turbo back exhaust, Quadzilla Adrenaline w/ Pulse monitor, redhead steering box, …Take the rated watts for your heater divide by operating voltage gives you your amps. So if I’ve done the math correctly my engine block heater a 1000w unit using a 120 volt line draws 8.33 amps. 1000 / 120 = 8.33. Location: West Palm Beach, FL. USA.TWR. 1940 posts · Joined 2011. #3 · Jan 19, 2016. check the intake manifold air temperature sensor this sensor tells the ECM when to turn the grid heater on by what temp the intake is as i recall anything under 66 degrees it does not turn the heater on anything below 66 at start it turns it on the grid heater.The Cummins air intake ( grid ) heater , is in a square block about 2 1/4" high sandwiched between the air tubing from the CAC ( Charge Air Cooler ) and the intake manifold . ... Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060 2000 Caravan toad, Remco & Blue Ox. 08-02-2023, 07:17 PM palehorse89. Senior Member .Location: Vista Ca. On a C7 the relay is on the engines intake manifold just above the heater grid. Also there is a fuse-able link in the cable to the relay from the starter. There will be a cable from the air intake heater to the relay solenoid. This solenoid is on the engine.Nov 6, 2011. #4. Yes, when you turn the key to the run position the gauges will sweep from the lowest values to the highest and the solenoids in the air valves will do a "chuff" test. Then the gauges will go to the positons for the conditions present when the engine is off. I'm not sure of the 5.9 Cummins engine has an intake manifold grid ...I run four sets of them 2 in the head light and 2 in the fog and the never go out not when starting or grid heater 2001 Dodge 2500 quad cab , Auto, 306,xxx miles, S&B Cold Air Intake, Expandit 5 inch straight piped system, Smarty, Edge Insight CS for gauges , HID Fog Lights 8000k, HID Head Lights 4300k, Electric/Heated tow mirrors, Painted ...check enginge light air intake heater code Jump to Latest Follow 12K views 9 replies 5 participants last post by Quickvic30 Dec 7, 2012 With the results, contact Mercedes-Benz Transmissions Service Support by fax (503.961.8435), email (MBTServiceSupport@ Freightliner.com), or phone (503.745.4965 or 503.745.4988). Table 2, The Battery Voltage Is Too Low 307/4 Business Class M2 Workshop Manual, Supplement 20, September 2011... Intake Heater Light: Troubleshooting Freightliner & Cummins | JustAnswer. Ask an Expert. Car Questions. Truck Repair. Intake heater light keeps coming o. And …Some examples of radiating infrared waves are burning charcoal, heat from an electric heater, fire or a radiator emitting warmth. Infrared radiation is a type of electromagnetic ra...My grid heater is not firing up on my 6.7. It is in the single digits at night and no where near the 55 or 60 F function point. I checked the power to the main solonoid that controls power to the grid and I also manually fired the solonoid and varified that it is working. The problem seems to be that the ECM is not giving a command to activate ...Mar 29, 2010 · We have had numerous inake heater relays fail on 3116/3126 engines. The C7 engines use a heavier relay. The earlier relays are to small to carry the 90+ amp load. On the 3116/3126 engines we have been using the Blue Bird relay that is used for the body heater/light functions. It does require replacing the terminal ends with something much heavier. This time of year, you’ve gotta do some work to keep your home warm and cozy. Christmas lights, decorations, an extra throw blanket on the couch. And, of course, a space heater. Bu...Logged. Re: 8.3 (mechanical) Intake Preheater Problem. Reply #1 – November 23, 2023, 05:39:15 pm. The fuel solenoid needs 2 wires to operate if it is internally grounded and could have three wires which. would be the ground, One wire is the pull in circuit and the other wire is the hold in circuit. The intake preheater only works when it is cold.The “wait to start” light comes on ever time during pre-start, but grid heaters never engage. It’s never worked since I bought the MH in 2013. I’ve used block heater to preheat engine prior to starting. Van Willams had this problem in 2015 and he checked all connections in engine room area which ended up resolving the problem.Apr 5, 2024 · Click the link above for the information. Ask Your Own Medium and Heavy Trucks Question. There’s a relay on top of the intake heater where power comes to but it isn’t sending power out the other side. Technician: Nich M. The relay should be activates by the ECM. Ask Your Own Medium and Heavy Trucks Question. Intake Heater Light: Troubleshooting Tips for Bus & Freightliner | JustAnswer. Ask an Expert. Car Questions. Truck Repair. This answer was rated: ★★★★★. The intake heater light flashes when the bus is cold however… The intake heater light flashes when the bus is cold however once it warms up, it doesn't come back on until the engine cools off.needing a little help on a FS65 freightliner school bus with a C-7 cat engine have a code of 70-5 intake heater current low need a wiring diagram of the grid heater circuit Thanks John: jperkins Active Member. USA 41 Posts. Posted - 10/12/2010 : 1:51:30 PM . note this is a 2006 model:09 Air Intake . 09–01 Air Cleaner Element Inspection and Replacement ; 13 Air Compressor . 13–00 Safety Precautions ; 13–01 Air Compressor Inspection ; 15 Alternators and Starters . 15–00 Safety Precautions ; 15–01 Alternator, Battery, and Starter Checking ; 20 Engine Cooling/Radiator . 20–00 Safety Precautions ; 20–01 Radiator ...My question is about the air intake heater system on my 2000 Freightliner FL70 that has a Cat 3126 engine. I have had the truck since March of this year. Initially the indicator light for warming the engine when cold stayed on for about 30 seconds as it. was supposed to and the engine started fine. I have a lengthy bit of info I want to include ...The “wait to start” light comes on ever time during pre-start, but grid heaters never engage. It’s never worked since I bought the MH in 2013. I’ve used block heater to preheat engine prior to starting. Van Willams had this problem in 2015 and he checked all connections in engine room area which ended up resolving the problem.DDC-SVC-MAN-0040.PDF - MBE 900 ENGINE 2007 OPERATOR'S GUIDE - Freightliner ... Detroit Diesel®Wait to Start light does not come on in the dashboard. Truck will start but is difficult especially in colder temps now. ... My question is about the air intake heater system on my 2000 Freightliner FL70 that has a Cat 3126 engine. I have had the truck since March of this year. Initially the indicator light for warming the ...Summary: Freightliner Service Bulletin for Front Axle Spacer Replacement. This service bulletin replaces the version dated 05/01/2016. This bulletin is updated to include the parts list. Some vehicles may exhibit a lean (right or left) due to weight. Communication Number: 20CSA-04, Date: 2020-03-20.Blog Entries: 1. CAT 3126 does not have glow plugs and uses an air intake pre heater. Not sure there is a fuse for that but check the wiring diagram for your coach and see. Or, a visit to a CAT shop. __________________. 2007 Country Coach Allure Siskiyou Summit, sold/traded Nov. 2018. 2019 Grand Designs 384GK-R 5th wheel.Nov 13, 2015 · Here I show how to diagnose a air intake heater circuit on a Cummins Isc Engine PartsPro PartsPro® is an electronic parts catalog system, showing the specified vehicle’s build record. EZWiring EZWiring™ makes Freightliner, Sterling, Western Star, Thomas Built Buses, and Freightliner Custom Chassis Corporation products’ wiring drawings and floating pin lists available online for viewing and printing.Freightliner Truck reserves the right to discontinue models and to change specifications or design at any time without notice and without incurring obligation. Descriptions and …SPN 3223 Aftertreatment 1 Intake Gas Sensor Heater Control FMI 7 . SPN 3223 FMI 5 . What is SPN 3223 FMI 7? This code is telling you the NOx Inlet Sensor …EVERY PART YOU NEED, WHEREVER THE ROAD LEADS. From Daimler Truck North America (DTNA) Genuine Parts to quality all-makes and value-driven parts, DTNA is your one-stop shop for readily available parts solutions for trucks, trailers and buses that keep the wheels turning.2513208C92 INTAKE GRID HEATER KIT is an OEM part from Navistar International®, Kits: (1.00) SINGLE GRID HEATER ASSEMBLY; (1.00) GASKET INLET DUCT- INTAKE MANIFOLD; (1.00) INSTRUCTION SHEET; , Engine Platform: I367 - 2013 Emissions MaxxForce DT, 9, 10, OEM Description: INTAKE GRID HEATER KIT, Package …

Anyone ever had this intake heater error 1 and 2 code flash up on dash ? If so what was the problem and the cure . I know it has something to do with cold starts.. U haul moving and storage of south temple

intake heater light on freightliner

The heater will stay on for a few minutes, It is there to help starting and reduce smoke during warmup.i haven't worked on cats in a few years but i think the heater can stay on for up to 5 minutes in extremely cold environments. and yes they will draw voltage down .On our Freightliner m2 trucks with cummins engines,the intake heater will cycle ...This time of year, you’ve gotta do some work to keep your home warm and cozy. Christmas lights, decorations, an extra throw blanket on the couch. And, of course, a space heater. Bu...This time of year, you’ve gotta do some work to keep your home warm and cozy. Christmas lights, decorations, an extra throw blanket on the couch. And, of course, a space heater. Bu...EZWiring EZWiring™ makes Freightliner, Sterling, Western Star, Thomas Built Buses, and Freightliner Custom Chassis Corporation products’ wiring drawings and floating pin lists available online for viewing and printing. EZWiring can also be ac-cessed from within PartsPro. Introduction Descriptions of Service Publications2) The intake air heater circuits will only activate when the intake manifold temperature is below 19°C [66°F] when the key switch is in the ON position. Ask Your Own Medium and Heavy Trucks Question. Voltmeter on dash Drops down every time the relay cycle When cold I turn the key on I hear the relays energize and the wait to start light ...Immerse the IAT sensor in a cup of ice water (below 66F ambient temp for 05 truck) should trigger the grid heater operation. If not then the relay doesn't get the 12V trigger signal from ECM for some reasons or the relay ground is missing. _________________. '05 2500 QC SLT SB 4X4 48RE Smarty Jr 205k miles.The air intake heater control helps the combustion process while starting in cold temperatures by controlling the heating elements in the engine's intake air system. The ECM controls the heating elements in two phases, pre-heat and post-heat. The amount of time that the intake air heater remains on depends on the intake manifold temperature at ... Tail Light Configurations (Module 294) Trailer Interfaces (Module 296, 297) (Module ) Engine Interface (Black Plug) (Plugs may also be frame located) 148, 163, 87L Transmission (Grey Plug) (Plugs may also frame located Interfaces. be (Module , 34C) Electrical Component Overview 2010 M2 Electrical Body Builder Reference Page # 2 Rev: New The result of sustained, concentrated investment, the Cascadia represents a new era in trucking for Freightliner in Australia and New Zealand. Find everything you need to know about the 116 and 126 models. Trucks. Why Cascadia. Cascadia 116. Cascadia 126. Engines & Transmissions. Detroit Systems. About Freightliner.Benefits of Solar Water Heaters - The benefits of solar water heaters are numerous. Visit HowStuffWorks to learn all the benefits of solar water heaters. Advertisement The benefits...Shows the steps to disable those pesky intake heater lights by disabling grid heater. Remember to key off and let bus go to sleep to fully deactivate.Do you know how to remove your car's intake manifold? Find out how to remove your car's intake manifold in this article from HowStuffWorks. Advertisement Repairing your car may see...If you have power at the output, check the connections to the intake heater. I like to put an inductive ammeter onto the wire from the relay to the intake heater to confirm low power draw before removing the heater grid. In the 17 yaers of working with the Cat engines,we have only had to change 2 of the heater grids.Jun 21, 2019 · The intake heater only engages on a cool engine to provide warm air to the combustion chambers so the engine will have good heat for combustion of the fuel. It makes the air more dense to allow the combustion during the compression stroke. The intake heater doesn't need to come on any other time. 813 posts · Joined 2007. #1 · Nov 18, 2009. Started the truck yesterday and check engine light came on. Checked codes with Smarty and there were two of them. They were P2609- No voltage drop seen from intake air heater and P0542- High voltage on the #1intake air heater relay. After checking the codes I noticed that my grid heater is not ...I operate a 2010 Freightliner M2- 112 with an MBE4000 mercedes engine. It has about 20k on it. It has an "intake heater" flashing light on the dash that the dealer can't seem to find the cause of. The closest dealer is over an hour away, so it takes a lot of time to take it there. When....

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