Automotive Technicians Technical Discussion and Fixes for Sep 20, 2013

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	Help Request	Answers
	1996 Acura RL 3.5L dash lights VIN: JH4KA9655T The lights on the instrument cluster stay on after turning off the car including, battery light and others. If you step on the emergency brake lights go out. If you pull fuse #13 or 20 the lights go out. 1.7 volts is staying at the fuse. if i ground any of the...	View
	2007 Audi Q7 4.2L Ecm VIN: WA1AV74L87 Hello everybody, can somebody recommend a diagnostic tool apart from dealer that can be able to code a new engine control unit for Audi Q7 2007. Best regards	View
	2002 Buick Rendezvous CX 3.4L Odometer/fuel gauge VIN: 3G5DA03E32 After swapping out the engine with a rebuilt unit every thing working as designed. An interesting job. the BCM was disconnected during the swap out. After starting engine to test for any leaks or other problems I noticed that the odometer was showing a "ERROR"...	View
	2003 Chevrolet Avalanche 1500 North Face 5.3L No Start VIN: 3GNEK13T23 I need help with a real problem vehicle. It came to us on a hook, quit going down road. First check showed no spark, had fuel pressure and injector pulse. After checking for no spark, traced to ecu, replaced with flashed reman unit. After security re-learn sta...	View
	2004 Chevrolet Silverado 1500 4.8L Ipc VIN: 2GCEC19VX4 Hello everyone I just replace the IPC in this truck for above items not working. Gave the dealer the mileage and vin but did not give hours. They didnt ask for this and I didnt think about because the last couple of IPCs I have replaced did not have hours. My ...	View
	2008 Chevrolet HHR LT Panel 2.2L no crank VIN: 3GCDA05D58 i have a 2008 chevy hhr 2.2 no crank i am getting the crank signal to the ecm. i can read the data on my scanner. but the ecm does not send the signal to the starter relay. also with the key on if i jump the starter relay out the car starts runs perfect. all...	View
	2005 Chrysler 300 C 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 2C3JA63H75 Vehicle runs terribly at idle and surges. The red lightening bolt flashes and there is no throttle response. The p2101 will set "key on engine off" even though the description in alldata says it checks this while running. I can see the throttle plate open half... Trouble codes: P2101	View
	2008 Chrysler Sebring Touring 2.7L Power Top VIN: 1C3LC55R08 The Power Convertible Top is inoperative. It was an intermittent condition, but has now graduated to fully inoperative. It failed while in the deployed state, so I and another tech had to manually put it back in the normal position. We are unable to get the to...	View
	2003 Dodge Ram 1500 Laramie 4.7L No Start VIN: 1D7HA18N93 This one has me totally baffled. If this truck sits overnight, it will not start the next morning until after many attempts.You crank it and the starter kicks out. After several tries it'll begin to fire, then kick out. Once the engine begins hitting like that...	View
	2005 Dodge Stratus SXT 2.4L Hesitation, Surge VIN: 1B3EL46X95 OK, So I thought I was done with this thing when I found I had wrong cams. Swapped out cams with correct ones, all crank and cam codes are gone, YA! it starts, it runs, rough, no power, very sluggish. I have checked for vacuum leaks, triple checked timing, ope...	View
	1977 Ford Mustang II 2.8L Poor Idle Quality VIN: 7R02Z12395 Hey Guys! Just hoping I can get some help in sourcing an accurate vacuum diagram for this old pony. It is mostly original and all smog stuff is intact. It has a 2bbl carb, CA emissions, electric choke and A/C. I am trying to get it running after sitting for 10...	View
	2003 Ford Expedition Eddie Bauer 4.6L low pedal VIN: 1FMRU17W23 Truck came with brake pulse & shimmy. Replaced pads & new rotors. Opened bleeders & pushed cal pistons in , replaced 1 tie rod & align. Started to roadtest & pedal to floor. Tried to bleed front brakes &no fluid at bleeders, lossened medal lines at hoses no fl...	View
	2003 Ford F-250 Super Duty XLT 6.0L cooling VIN: 1FTNW20P33 this is my buddy's truck. I do not know much about this engine. we replaced the starter and while under the vehicle I noticed some coolant around the right side exhaust. it started and ran fine. I could not find a coolant leak above the motor. he drove the veh...	View
	2005 Ford F-150 STX 4.6L Drive-axles VIN: 1FTRX14W55 Vehicle has an intermittent grinding type noise from the left front wheel while driving. Have verified vacuum to and through the new vacuum solenoid. Have verified power and ground on live circuits to the solenoid while vehicles running. Have applied vacuum to...	View
	2005 Ford Escape Limited 3.0L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 1FMYU94195 Ok Ford guys, this is my wife's car and I am having the "common" PCM driver problem. It all started about 1 month ago. The PCM quit firing the coils for Cylinders 1 and 2. So i replaced the PCM with a new/aftermarket one from Carquest. I gave the VIN and milea... Trouble codes: P0351 (Ignition Coil A Primary Circuit Fault), P0352 (Ignition Coil B Primary Circuit Fault)	View
	2009 Ford Expedition XLT 5.4L Mechanical VIN: 1FMFU15529 Vehicle came in for brake pedal slowly going low when vehicle is running. Replaced brake pads all around and machined rotors. Brake pedal still going low when vehicle is running. Bled all calipers manually and then tried a vacuum bleeder. Still pedal going low...	View
	2003 Hyundai Tiburon GT 2.7L Heater core VIN: KMHHN65F03 Car came in with heater core leaking into passenger floor. We replaced with 3 different cores and flushed the system thought in case electrolysis was the cause. The last heater core was OEM. Also new thermostat & cap. The last core lasted only 3 months.	View
	1992 Mercedes-Benz 500SEL 5.0L Right Rear Door VIN: WDBGA51E7N Good morning folks! I have a benz here that I can't get the door to open. I was able to lower the window and removed a couple of trim parts to look at the latch and locking system. Everything is moving ok and when you lock and unlock the door, you can "feel" ...	View
	1999 Mercedes-Benz C230 Kompressor 2.3L abs VIN: WDBHA24G1X car came in with abs light on and avr light on. it had 11 codes in it,c1101,c1102,c1103,c1200,c1314,c1022,c1031,c1300,c1302,c1 304,c1306. clear them all and the only the comes back is c1101. SO I REPLACE RF WHEEL SPEED SENSOR, STILL CANT CLEAR THE CODES TO GET...	View
	2005 Mercedes-Benz CLK500 5.0L oil VIN: WDBTK75G95 Hi guys, We have this V8 benz with a significant oil leak. I believe this is a 113 engine, but I could be wrong. We have oil running down the back of the block and dripping out of the bell housing. I have found some information regarding plastic plugs at the b...	View
	2007 Mini Cooper 1.6L engine light VIN: WMWMF33567 Hello IATN techs. This one has got me to finally post a help request. the code 278a "fuel mixture adaptation, idling per time unit too rich" will not go away. i cleared it and in about one month it came back. i reflashed the computer per tsb number si m12 04 0...	View
	2005 Nissan Frontier LE 4.0L MIL Lamp on VIN: 1N6AD07W15 This truck came in about a month and a half ago with a p1446 vent valve malfunction. I bench tested the valve and found it to be inop when tested with power probe. I installed the factory upgraded vent valve only to have it come back full of dirt 2 weeks later... Trouble codes: P1446 (Canister Vent Valve Malfunction)	View
	2005 Nissan Altima SE-R 3.5L 3-2 downshift VIN: 1N4BL11D55 ok, this Altima drives and shifts fine until trans fluid temp reaches 190 degrees. and then only on a 3-2 down shift the pcm commands the throttle to snap open causing the complaint. I can see the tps voltage spike on datastream. accerator voltage does not spi...	View
	2006 Nissan Frontier SE 4.0L Hesitation, MIL Lamp on, poor shifting VIN: 1N6AD06U36 After countless sleepless night, I decided to turn to my few iATN-er for help ( I figured if you guys can't help, no one can). We got this 06 Nissan Frontier Pu came in on the hook with a no start concern. Found ecm was not grounding fuel pump relay, so we rep... Trouble codes: U1000	View
	2005 Pontiac Grand Prix GT 3.8L Mechanical VIN: 2G2WS52215 hello fellow techs,i have a head scratcher here.vehicle came from toyota dealer used car sale.problem is not alot of heat.duct temp is 90* when set in full heat.not much change when switched to cool.seams like a temp door hanging up?i can watch actuators and t...	View
	2006 Smart Fortwo Pulse .8L No Start VIN: WMEAJ00F66 to all the smart techs out there i need your help. this deisel has no power to glow plugs tried different glow plug modules with no success. there is no codes stored and i have done extensive wire testing. i have battery power, ignition feed, ground, and a du...	View
	2006 Subaru B9 Tribeca Limited 3.0L MIL Lamp on VIN: 4S4WX83C26 Very intermittent MIL, last time was 20,000 miles ago with exactly the same codes at which time I deleted the codes. I had thought that the low-oil level condition had caused them but the oil level was not low this time. Upon removing them today, both cam sens... Trouble codes: P0011 (Intake camshaft position timing - over-advanced on cylinder bank 1), P0021 (see P0011 according to AllData), P0018 (see P0011 according to AllData), P0016 (see P0011 according to AllData)	View
	2010 Suzuki Kizashi SE 2.4L MIL Lamp on VIN: JS2RF9A30A Have checked solenoid operation, scanner does not have software for Suzuki. can clear codes and they return after 3 starts. not much info avail. in alldata. any diag aid would be greatly appreciated. Thanks in advance. Trouble codes: P0016	View
	2003 Toyota Echo 1.5L iac? VIN: SCP1003773 hi thecs especially toyota techs ,i need some help here cause this little simple bug got me in a corner, came in with fast idling after a month in a body garage, it revs up to 1500 on idling .i checked vacuum leaks ,stripped and cleaned iac and throttle body w...	View
	2004 Toyota Tacoma 2.7L driveline VIN: 5TEWM72NX4 i have a vibration that comes in around 55-60 mph and gets worse around 70-75 mph. feel it in rear of truck, not much in steering wheel at all. it is not constant. you can set cruise at 70 mph and it comes on for about 30 secs or so and the kind of fades away ...	View
	1979 Volkswagen Transporter Campmobile 2.0L engine VIN: 2292067572 misfire under a load. rough idle. ignition looks good on scope pattern, fuel pressure 30psi @ idle and 40psi@ higher rpm. timing set to spec 4atdc... looking at o2 sensor good fuel control. passes smog. nox abit high 900ppm. co@.03% hc. 100ppm.any help will be...	View
	2001 Volkswagen EuroVan MV 2.8L Misfire, MIL Lamp on VIN: WV3AB47011 Ok I would like to thank you all in advance for this one... I have been pulling out my hair on this. I am not too familiar with the VW motors and this one is really throwing me for a loop. Its a VR6 DOHC. Van came in with customer stating that it intermittent... Trouble codes: P0300 (p0301-), P0301 (p0302-), P0302 (p0303-), P0303 (p0304-), P0304 (testing and results)	View
	2002 Volkswagen Jetta GLS 1.8L MIL Lamp on VIN: 3VWSE69M02 Intermittent check engine light with codes P0411 / 16795 for incorrect secondary injection air flow, and P1136 / 17544 for intermittent lean fuel condition. Checked IATN archives and performed what was found on the related cases. Activated the air pump with th... Trouble codes: P0411 (16795 - Secondary Air Injection System Incorrect Flow Detected), P1136 (17544 - Fuel Trim Bank 1 add System Too Lean Intermittently)	View
	2009 Volkswagen Passat Komfort 2.0L Misfire, MIL Lamp on VIN: WVWJK73C99 We really need some help with this one. We moved everything looking for this miss but come up with no change. Car only misfires the first minute or so of running and always #two cly. We are about ready to take the intake off and move the Injectors but don't ha... Trouble codes: P0300 (Random Misfire), P0301 (Miss 1), P0302 (Miss 2)	View
	2002 Volvo S40 1.9L Starting Hi everyone, This volvo came in a while ago for a engine replacement as it had badly overheated. The car did crank over when it first arrived at the shop, but the car sat for a few weeks in the same spot before I got the go ahead to replace the engine. When I ...	View
	2006 Volvo XC90 2.5T 2.5L instrument cluster message VIN: YV4CY592X6 Help volvo techs this xc90 came with message on dash right side low beam failure it has halogen lights not hid. Dtc from cem is 372:cem-8a21 low beam right signal too low.all lights and right side low beam works all the time is just the message in cluster. I ...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2006 BMW 750i 4.8L cable We got the hood open. The trick on this car, is to access the cable going to the L hood latch. To do this, remove the L inner fender shield, remove the bolt holding the fender and pull it out an inch or so, then with a mirror you can see the cable going to the...	1
	1999 Cadillac Escalade 5.7L Misfire, MIL Lamp on VIN: 1GYEK13R0X Thank you all for taking the time to reply. Well after exhausting all tests with pretty much inconclusive results I decided to pull the heads and have them checked at the machine shop. The compression test results were equal accross the cylinders while crankin... Trouble codes: P0301 (Misfire Cyl 1).	24
	2004 Chevrolet Avalanche 1500 Z66 5.3L Temp Control VIN: 3GNEK12T64 THANKS EVERYONE. USED A SCOPE AND TEMP DOOR WAS BROKE. GONNA START RIPPING IT APART. IATN IS GREAT.THIS WAS MY FIRST HELP POST AND IT PAID OFF.	14
	2000 Chrysler 300M 3.5L Accessories VIN: 2C3HE66G6Y We found the headlights were coming on occasionally by themselves, wiggle the connector on the back of headlight switch and they would flicker, replaced switch and will give it a few weeks but think the dying battery problem solved, as far as the communication...	9
	1991 Dodge Stealth R/T 3.0L TCM Communication/limp mode VIN: JB3XD64B2M Well, this is going to be a long drawn out process to get this vehicle repaired. I got a remanned TCM from Automotive Electronic Solutions out of Florida. I chose this company because they were members of the ASA and AAIA and had an A rating with the BBB. When...	5
	2000 Dodge Ram 2500 Van 5.2L Intermittent start VIN: 2B4JB25Y2Y Replaced PCM and retested and veh is running great. Thanks for all your help. Great group of people. Louis Trouble codes: N0, B0USS.	11
	2003 Dodge Stratus SXT 2.4L No Start, Surge, Cuts out, Stall VIN: 4B3AG42G43 Well, as several people suggested, we replaced the crank sensor with a factory part, and it is fixed. Don't understand why, but we won't be installing any more aftermarket sensors. Thanks to everyone who replied. Trouble codes: P0135.	13
	2005 Dodge Stratus SXT 2.4L No Start, Surge VIN: 1B3EL46X95 Let me start with, Thanks for the help. Then let me apologize for ignoring my wife when she kept saying, "check the pin, I bet it's different." In my defense i will claim it to be a guy thing, like asking for directions. For some reason I was pig headed enou... Trouble codes: P0340 (Camshaft sensor fault), P0344 (Camshaft Sensor intermittent).	6
	2009 Dodge Ram 5500 SLT 6.7L Security VIN: 3D6WD76L29 Customer admitted that the light was on before we did the water pump and said just to leave it because it does not cause any problems. So I just let him take it. And told him some day to bring it back and we would fix it for him. Sorry guys wish I could tell...	5
	1994 Ford Ranger STX 4.0L transmission VIN: 1FTCR14X6R First off I would like to thank everybody for all the good information. As some suggested unplug the trans and check for flow to the trans cooler. I did both of these then installed new filter and fluid. Refilled the system and open the trans lines and ran the...	15
	2004 Ford Freestar SE 3.9L No power VIN: 2FMZA51604 Thanks for all the helpful advice. I had already made the trip with the fuel pressure gauge taped to the window and got all those wierd looks you get from people next to you in traffic. I got some help from my AC Delco trainer and his connections with Autonerd... Trouble codes: P0340.	7
	2005 Ford E-450 Super Duty 6.0L fluid VIN: 1FDXE45P05 could not get it to vent out cap so i think there was an air pocket . cust came and picked up vehicle .	5
	2007 Ford Explorer Eddie Bauer 4.0L compressor clutch VIN: 1FMEU74E47 thanks to all the replies on the high side too high. as it turns out i returned to rechecking pressures and noticed high side gauge bouncing and very erratic.decided to break into system,found abundance of metal shavings at orafice tube.ended up replacing comp...	14
	2005 Jeep Liberty Limited 2.8L MIL Lamp on VIN: 1J4GL58555 Thanks for all the help, a new EGR valve and cleaning of associated parts and all is well. Thanks again George Trouble codes: P0105 (Turbo inlet pressure), P0401 (Low egr flow), P0101 (Maf preformance).	4
	1993 Lincoln Town Car Jack Nicklaus 4.6L No Start VIN: 1LNLM82W4P I feel that the problem is with a bad connection in the wiring. Probably a green wire, as in corrosion. Will continue to check wiring loom.	18
	2006 Mazda 3 i 2.0L Mechanical VIN: JM1BK12F76 Thanks to all aspecially Paul in NC. He provided me with the info that I really needed. My OTC Ford Master Kit lists it's tool as identical to special tool #303-507. I could not see how this tool could work. Paul told me his factory tool is exactly 1.5 inches....	7
	2004 Mercedes-Benz CLK500 5.0L Bas esp module VIN: WDBTJ75JX4 Update to this ticket. Replaced with another used module and received same failure codes. Communication was available with all modules. I used mercedes das for scanning. Even though battery tested fine I replaced with a new one and that corrected the problem...	10
	2008 Mercury Grand Marquis GS 4.6L No Start VIN: 2MEFM74V28 I took all suggestions into consideration,Thank you. Went back into the harness to double check powers and grounds,after much searching found a partially damaged wire that powers the PCM at connector C175b terminals 35 and 36. I was enough to affect throttle o... Trouble codes: P2100 (Tac motor circuit open), P2104 (Tac system forced idle), P2107 (Tac module processor), P2110 (Tac system forced limited idle).	6
	2003 Pontiac Grand Am SE 3.4L shaking VIN: 1G2NF52E43 thanks guys for all the useful info, but the coustomer has yet to return. so closing this out.	25
	1997 Subaru Legacy Outback 2.5L Misfire, MIL Lamp on VIN: 4S3BG1859V As suggested dropping exhaust I could see loose exhaust guide. Customer declined repair, stating he would junk the vehicle] Trouble codes: P0301.	15
	2001 Volkswagen EuroVan MV 2.8L Misfire VIN: WV3AB47011 Thank you all for your responses. I have learned alot about these engines in the past few days. I am going to close this without a fix as I would like to start another request with much more information about the problems at hand. I think this will offer mo... Trouble codes: P0300.	8
	2004 Volvo S60 2.4 2.4L No Start, Stall, MIL Lamp on VIN: YV1RS61T94 Thank you to all who replied.But customer took the vehicle.We never fixed it	4

(Also Available: All, Asian, Chrysler, European, Ford, GM.)