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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 19, 2018
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Open Help Requests for All Makes and Models
Help Request Answers
2000 Audi TT 1.8L clutch VIN: TRUUC28N6Y
Vehicle came on a tow truck with clutch pedal to the floor. After pumping the pedal it built pressure for few minutes long enough to put it in gear but pedal faded again. since the back of the master cylinder looked wet we replaced clutch master cylinder a...
2007 Cadillac CTS 3.6L Brake Lights VIN: 1G6DP57747
This vehicle has no brake lights. All other lights are functioning properly. Have tested all fuses & BAS relay. Checking ABS data it shows I have a valid brake light sensor. Shop Key says to check and make sure cruise control switches are not stuck. Checki...
2009 Cadillac CTS 3.6L Battery VIN: 1G6DT57V49
Thank you in advance, gentlemen, for your insights. This car came in because the remote control would not unlock the trunk, and the driver door was difficult to open. Found bad exterior door handle (with built-in 2-wire sensor) and bad Remote Control Door ...
2012 Chevrolet Cruze LS 1.8L shifts slugish & limp mode VIN: 1G1PC5SH4C
Vehicle came in on a trade. Noticed the transmission was shifting a little on the sluggish side. Fluid looked a little dark not terrible. Codes stored were PO700 & PO601 Test drove for 30 minutes, shut car off for 20 minutes then backed out of parking spot...
1998 Ford Ranger Splash 2.5L MIL Lamp on VIN: 1FTYR10C2W
This is a clean, rust free, well maintained vehicle. No aftermarket accessories, long time older owner. Came in with CEL on, P0340. Customer said that he had the battery and alternator replaced at a local garage because the original alternator failed. ... Trouble codes: P0340 (Camshaft Sensor Circuit)
2005 Ford Freestyle SE 3.0L no crank VIN: 1FMZK01135
no power to small wire on starter solenoid, not grounding starter relay . i have 2 keys , tried both when problem occurs. still no crank. also tried receiver around lock cylinder , still no crank.if i ground starter relay it will run.swapped relays , no he...
2007 Ford Fusion SE 2.3L trans control module VIN: 3FAHP07Z17
need some help here. has been to 3 other shops before me and customer has just purchased car from private party. It keeps going thru trans modules. they might last a couple hours or the longest it has lasted was 3 days? they have about 7 they have gone thr...
2015 Ford F-250 Super Duty XL 6.2L Instrument Cluster VIN: 1FT7W2B64F
Very intermittently the Tach and Speedometer and all gauges except fuel will drop to Zero, most all warning lamps will light, errors in message center ( engine over temp,check brakes, Service advance trak,and wrench) . lasted about 5 seconds while driving ...
2012 Isuzu NQR 5.2L Excessive Emissions, Hesitation, Stage 4 De-rate VIN: JALE5W164C
They drove it till it was derated 5mph. Yes they hardly leave the ramp. They have a supervisor that tries to keep them up on regens but they don't have any spare truck right now and they loose big bucks if they delay a flight. the logic is put it back in s... Trouble codes: U2105 (Lost communication with ecm), U2202 (Lost communication with def), U2203 (Lost communication with turbo boost module)
2012 Jeep Compass Limited 2.4L MIL Lamp on VIN: 1C4NJDCB1C
just wondering if there's a quicker way to see if Chrysler has a programing update for this issue because the catalytic converter is working well. Trouble codes: P0420 (catalyst efficiency)
2012 Jeep Compass Limited 2.4L Transmission VIN: 1C4AJCCB5C
This Jeep Compass came running. the owner informed that it failed to start one night. Next morning, it started ok, with check engine light on, and while driving, it lossed power, they stopped, turned it off. Restarted, and it felt ok, until the next power ...
2005 Kia Sedona EX 3.5L Misfire VIN: KNDUP13135
This vehicle originally came in hesitating, barely running. I found the MAF was dead and the intake runner control system had worn bushings and gear and was causing a lot of noise. We ended up replacing the runner control assembly, MAF, and replaced the ti... Trouble codes: P0300 (Random Misfire), P0301 (Misfire Cyl. 1), P0302 (Misfire Cyl. 2)
2005 Mazda 3 i 2.0L Poor Idle Quality, Surge VIN: JM1BK12FX5
Car came with in with a p171, p174 no vacuum leaks found but proceeded to replace oil separator box and pcv line to bottom of intake. Car runs lean only on idle as soon as you take it off idle it runs fine and short term and long term fuel trims go within ...
2007 Mercedes-Benz S550 5.5L naviagation/rad VIN: WDDNG71X47
The navigation and radio does not work at all the screen illuminated the Mercedes emblem one time and went blank and has not worked since. I checked all the fuses and everything looks good. Can anyone give me any ideas on this function they seem to have proble...
1998 Mercury Sable GS 3.0L No Start VIN: 1METM55U0W
car was parked seven years customer decides they want put vehicle back on the road engine will only start with starting fluid no communication with computer sent computer tested good very weak injection pulse checked power and grounds all good will run on ...
2004 Nissan 350Z Touring 3.5L compression VIN: JN1AZ36A74
car came in for smoke at cold start when i brought it in i puled spark plugs and #2 plug had bad build up on it then i put bore scop in and saw piston was very saturated and had low compression also had build up on #4 and 6 but compressin test ok any ideas...
2010 Nissan Versa S 1.8L #4 cylinder VIN: 3N1BC1CPXA
Greetings: Vehicle brought in with rough idle and cel on with p0300 as only pcm code. Performed injector kill and found no contribution on #4. Compression is 30 psi whereas adjacent cyl approx 195. Removed valve cover and found camshafts intact. ...
2015 Nissan Altima S 2.5L AC System VIN: 1N4AL3AP1F
OK, read carefully please. 1, when veh arrived, compressor would not engage, fans ran at high speed and engine would idle up. Checked refrigerant charge, was low, evacuated and refilled system to proper weight charge. Still operated the same. after a few...
2005 Volkswagen Jetta GLS TDI 1.9L No Start VIN: 3VWSR69M05
Vehicle is a crank no start. Checked for crank signal due to the p0321 crank sensor fault code and found weak crank signal, only generating .25 AC volts cranking, replaced crank sensor and now reads about 1.5 AC volts, but still will not start and still se... Trouble codes: P2564, P0321

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2009 Audi A5 Quattro 3.2L Poor Idle Quality, Misfire VIN: WAUDK7809A
Hopefully this will help someone in the future working on these engines. The cylinder contribution fault, misfire for cyl. 4 and negative FT's on B2 were fixed by replacing injectors # 5 and #6. Those were originally recommended to the customer but he declined... Trouble codes: P0304 (Cylinder 4 Misfire), P0272 (Injector 4 Contribution/ Balance fault).
2008 BMW 650i 4.8L Comfort Access VIN: WBAEB53538
Thanks All for helping. We followed everyones advice and cleared out all the old keys and programed the new keys to the car. The keys will work in the key slot but still will not lock or unlock the doors or perform any of the comfort access protocols. We wan...
2006 Buick Rendezvous CXL 3.5L Vss Rotor VIN: 3G5DB03L46
Well, the Buick is not back on the road yet, but my time has run out. The questions I asked have been resolved, and it remains to be reassembled. The transfer case unit can indeed be removed without pulling the engine or transaxle. The process is much akin t...
2008 Cadillac STS 3.6L ecm VIN: 1G6DW67V68
Thank you all for responding. This makes so much sense, I guess I had my blinders on and could not see around the corner. What was throwing me off was the complete loose of communication during the time it went dead. I wonder if somehow the car shut down commu...
2006 Dodge Ram 2500 SLT 5.7L Stall VIN: 3D7KS28D36
The truck is fixed,Dan [...] hit the nail on the head.They did share a ground and the ground was the problem.Took it apart and cleaned the terminals and all is well. THANK YOU ALL FOR THE RESPONSES KEITH
2006 Ford F-150 XLT 5.4L Cuts out, Misfire VIN: 1FTPW14V66
Took everyones suggestion about the lisle tool. Went to amazon and ordered the 65700 set for 87 dollars. According to directions you screw the pusher untill it bottoms out. When using it I did notice that the pusher sent the porcelain thru the grd strap. That ...
2008 Mazda CX-7 Touring 2.3L Hesitation, Cuts out VIN: JM3ER29338
Well...engine light is fixed and vehicle runs great...until it doesn't. Although all of the help I got was full of great information , this one required going outside the box and we've done all we can without going nuts on diag and cost to repair. This car wou...
1992 Mercedes-Benz 500SL 5.0L Hesitation, MIL Lamp on VIN: WDBFA66E7N
Thank you everyone for your help. as you guys said it was an issue with the EHA, or rather just a simple adjustment, I watched the duty cycle and when it was started cold it was at 50%, when it warned up and went into closed loop or at least wanted to go into ... Trouble codes: 17 (oxygen sensor).
2006 Subaru B9 Tribeca Limited 3.0L MIL Lamp on VIN: 4S4WX85C96
thanks for all the time put in and replies I have received except for the "what I would have done 6 months ago" nonsense but anyways I measured oil pressure cold and hot and cold i was at 35-45 psi but once I reached operating temp it dropped slowly to 8 psi a... Trouble codes: P0011, P0011, P0011, P0011.
1991 Toyota Land Cruiser 4.0L No Reading VIN: LJ78008147
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