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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 26, 2020
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Open Help Requests for All Makes and Models
Help Request Answers
2016 Audi Q3 Quattro Prestige 2.0L No Start VIN: WA1GFCFS2G
hello Audi techs, car was towed into my shop this morning for a crank no start condition. Hooked scanner up and found lots of codes. Cleared all codes and none are yet to come back and the vehicle still does not start. I know I have good fuel pressure from... Trouble codes: 01112 (Evap purge control valve short to ground), 09754 (ccolant pump 2 open circuit), 06438 (relay for aux coolant pump short to ground), 01681 (fan 1 control circuit short to ground), 08201 (intake manifold flap b1 short to gound), 01674 (ecm power relay oad circuit)
2014 Cadillac ATS Performance 2.0L MIL Lamp on VIN: 1G6AJ5SX5E
car came in with p0171 bank 1 lean found two bulletins first bulletin was to check intake bolt for being loose so i went ahead and smoked the intake system. no leaks found.second bulletin was to check the vac. system for the engine mounts checked withe a v... Trouble codes: P0171
2002 Chevrolet Silverado 2500 HD 6.6L Computers VIN: 1GCHK29142
Vehicle was towed in with transfer case stuck in neutral. Removed the encoder motor and tried shifting the transfer case and couldnt get it out of neutral. Original tcase with almost 300k so makes sense. Replaced case and drove vehicle. Had it try to go in...
2005 Dodge Dakota SLT 4.7L MIL Lamp on VIN: 1D7HE42N75
CEL on for all the heater circuits. ECM drivers for the heater circuits have failed. I am looking for any assistance on locating a ECM for this vehicle. Dodge has discontinued it. Cardone does not reman it anymore according AZ and Oriellys. Does any of the... Trouble codes: P0037 (Oxygen sensor heater circuit), P0031 (Oxygen sensor heater circuit), P0051 (Oxygen sensor heater circuit), P0057
2004 Ford F-350 Super Duty Harley-Davidson Edition 6.0L No Start, Poor Idle Quality, Surge, Cuts out, Stall VIN: 1FTSW31P04
A friends vehicle came in and we are not a diesel shop so i am just asking for help we changed injector orings and notice that we were losing even cylinders first then stall will only run for a few minutes before it starts missing and stalls ,like it runni... Trouble codes: P0278 (Cylinder 6 contribution/balance), P0281 (Cylinder 7 contribution/balance), P0672 (2 glow plug ckt), P0674 (4glow plug ckt), P0675 (5 glow plug ckt), P0678 (8 glow plug ckt)
2016 Ford Transit-250 3.7L Electronic VIN: 1FTYR2ZMXG
Hi guys Need help.Vehicle towed in with noise and lack of power. when we try to move the vehicle it has scraping noise.we put it up o the lift and found driveshaft flange is very loose and it was so wobbly it actually broke the shield. trans flange was loo...
2011 GMC Yukon XL 1500 Denali 6.2L Engine VIN: 1GKS2MEF3B
Loud consistent rattle from right rear of engine. Confirm oil pressure in specs; oil level and condition okay. Remove right valve cover and confirm rocker arm #6 is extremely loose. Crank vehicle and confirm very minimal push rod movement. Remove the rocke...
2016 Infiniti Q50 Sport 3.0L Reprogramming VIN: JN1EV7AR1G
I am trying to reprogram this Infiniti. I am using the current version of NERS. I have purchased the correct file for updating the ECM and properly unpacked it and its in the proper Nissan file for the reprogramming. I get part of the way and just before i...
2013 Jeep Grand Cherokee Overland 3.6L Transfer case VIN: 1C4RJFCG5D
We have a 2013 Cherokee that came in binding and not wanting to move very easily in low speed sharp corners, almost like a locked front diff. Also wouldn't shift to different transfer case modes and the transfer case motor was clicking for several seconds ...
2013 Mercedes-Benz ML350 3.5L cam timing VIN: 4JGDA5HB8D
Hello Mercedes Techs! We have a 2013 ML350 4Matic in for service with a MIL on. Vehicle runs well, makes good power. Has a loud ratchet/rattle briefly on cold starts. 3 codes stored (scanned with Solus Ultra, data monitoring with iScan II WT): P001885 -...
2014 Mercedes-Benz Sprinter 2500 3.0L Hesitation, MIL Lamp on, lhm at 16000 psi VIN: WDZPE8CD7E
was getting high rail pressure to the tune of 26000 psi so changed pressure regulator, quantity valve, and fuel return line. After this repair it sets the P11B800 every single drive cycle instantly on acceleration as soon as fuel pressure commanded goes ab... Trouble codes: P11B8
2010 Mini Cooper 1.6L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: WMWMR3C52A
Mini Cooper came in with check engine light on and abnormal idling - sometimes surging high and sometimes going low and stalling out. Found code 2B55 for air mass plausibility, we smoke tested and found pcv in the valve cover had failed, causing internal a... Trouble codes: 2B55/
2009 Saab 9-5 2.3t 2.3L No Start, No Start, No Start VIN: YS3ED49G69
Greetings to all and thank you in advance for some insight into this 9-5 Saab.The car came to us as a crank no start with p0300 and p0302.the initial diagnosis called for a new ignition cassette which got the car started but left me with a p0302 preformed ... Trouble codes: P0300, P0300
2014 Toyota Tacoma 2.7L No Start VIN: 5TFTX4CN1E
Truck was bought as no crank / no start. No communication with ECM. ECM had water damage and was replaced. Now its a crank OK/ no start. Has a code p1604. No injector pulse. No communication with immobilizer. No theft light. Key fob works good. According t... Trouble codes: P1604 (Start ability malfunction)
2007 Volkswagen Passat 2.0T 2.0L No Start, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: WVWTK93C07
Symptoms were apparent before and after our repair of the high pressure fuel pump and cam follower. We did the timing chain and tensioner as well. The broken piece of cam follower was found in its entirety. After driving for 15 minutes, engine will cut o... Trouble codes: 00083
2008 Volkswagen Passat 2.0T 2.0L engine VIN: WVWGK73C08
Hi all, customer came in with P301 cyl misfire, clearly a dead cylinder by how it ran. Did the quick check, swap coil & plug to other cylinder, no change. Relative compression test showed #1 completely dead. Performed compression test, 15psi, all others ap...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2007 BMW X5 4.8i 4.8L MIL Lamp on VIN: 4USFE83557
This one is fixed! Andy [...] hit the jackpot on this one with his "long shot". It wasn't hard to sell the coil when the alternative was probably going to be replacing the transmission. We installed the ignition coil and all of the transmission problems went ... Trouble codes: 55C3, 5F2F, 6F60, A0B1.
1999 Buick Century Custom 3.1L Misfire VIN: 2G4WS52JXX
customer didnt want to put more time on the car but one thing is sure is that my problem is in this 3 things ignition module leaking intake gasket but whit 17 inchlbs steady at idle at not sure or the fact that my cylinder is a little bit low in this cyl thank... Trouble codes: P0300.
2012 Chevrolet Captiva Sport LT 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNAL3E52C
Thanks everyone for the advice. As suggested I am leaning towards a injector issue such as clogged or mechanically failing but without any way to prove it we felt most comfortable sending this car to the dealership as the heads have to come off and that's an e... Trouble codes: P0300.
2013 Dodge Dart Rallye 2.0L Cooling fan VIN: 1C3CDFBA8D
Sorry for the late response but this one is fixed. Installed a replacement cooling fan module assembly and it operated exactly the same. High speed fan at 230 F then gradually goes to low speed after engine cools down. This appears to be normal operation for t...
2006 Ford Expedition Limited 5.4L air ride codes VIN: 1FMFU20556
Thank you to all who have replied. I have tried the battery cable unhooked and touched together for several minutes,and the code still sets. I then checked the operation of all 3 level semsors and all 3 were stiff in movement. All 3 were replaced, which brough...
2008 GMC Savana 3500 6.0L MIL Lamp on, Oil psi gauge inop VIN: 1GTHG35K58
So this is a fleet van, the owner was not concerned enough to spend any more time/money on the repair. Just as a side note I tried to jumper the pigtail a 2nd time to see if gauge would peg; it did not. My next step was to do a pin test at the ECM ... when the... Trouble codes: P0523 (Oil psi sensor/switch voltage high).
2013 GMC Terrain Denali 3.6L Poor Idle Quality, Poor Idle Quality, Poor Idle Quality, Poor Idle Quality, Poor Idle Quality, Poor Idle Quality
Thanks to all who helped out on this one. We found multiple intake valves not seating properly. The compression tests and leakdowns couldn't pick out any differences between the cylinders. We found it by closing the valves, filling the runners with seafoam,... Trouble codes: P0300.
2004 Lexus IS300 3.0L Poor Idle Quality, MIL Lamp on VIN: JTHBD19204
I haven't had time to repair this vehicle. I have checked the crank pulley for nicks, no missing teeth, and the sensor has a good waveform above 1200 rpms on 1,6 (original problem). I'm leaning toward a pcm at this point. Trouble codes: P0301, P0306.
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