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Prev Professional Automotive Repair Technical Discussions for June 19, 2019
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Open Help Requests for All Makes and Models
Help Request Answers
2004 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHC29264
Vehicle will not start. Found code u0105 cleared code and code came right back. Checked injector plug with noid light while cranking engine, noid light never lite up. Ohm light blue wire from C2 pin 94 at FICM to C2 pin 63 at PCM. Tested good at .2 ohms no... Trouble codes: U0105
2005 Chevrolet Silverado 3500 6.6L Pinion Yolk VIN: 1GCHK34255
Hello everyone! I have a 2005 Chevy Silverado 3500 Duramax Allison Auto regular cab-8 ft box AMA 11.5 rear differential. I replaced the pinion yolk with Dorman part # 697-501. The U-joint caps are too big for the new yolk. I am wondering if anyone out ther...
2007 Ford Focus SES 2.0L Starting VIN: 1FAFP34N17
Vehicle towed in, died while driving along.Inspected, wouldn't crank, odometer reads ---, no communicaitons with PCM,ABS,PATS. Found #9 fuse (20amp) blown. hooked up brake bulb, short pulses as if being commanded on/off but not entirely off just dimmer. Pu...
2012 Ford F-550 Super Duty XL 6.7L Trans has no forward no reverse VIN: 1FDUF5GT8C
A friend of mine called me asking for help. A towing company brought in 6R140 to be rebuilt. They rebuilt it and gave it back to them. They now have a code P073D (unable to engage neutral) that is the only code. I do not know if there were any codes before...
1990 Mercedes-Benz 500SL 5.0L Excessive Emissions VIN: WDBFA66E3L
Hey everyone, thank you for your help on this vehicle in advance. Vehicle came in failing emissions terribly on CO, about 10 times the standard. I will admit I am not super familiar with this system and it appears that someone had been messing with the adj...
2008 Mercedes-Benz S63 AMG 6.3L MIL Lamp on VIN: WDDNG77XX8
Mercedes Tech, please help on this bad boy here. Car came in customer concern check engine light on and engine running rough. Found both bank 1 & 2 fuel trim at 16% at idle, system too lean Found leak in between gap at intake. Also leak in between throttle... Trouble codes: 0745 (Self adaption of mixture at idle right), 0749 (Self adaption of mixture at idle left), 2091 (right cylinder bank too lean at idle), 2095 (left cylinder bank too lean at idle)
2005 Nissan Xterra Off-Road 4.0L MIL Lamp on VIN: 5N1AN08U45
This SUV, has been to three different shops and no one could give them an actual answer on U1000 and U1001 codes. After you would erase codes it will start and drive fine for a few miles or sometimes an hour idling. then it would pop VDC AND TCS LIGHT on i... Trouble codes: U1000, U1001, C1156, C1143, C1163

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2008 Chevrolet Malibu LT 2.4L Misfire VIN: 1G1ZH57B48
so what i did was run a wire to coil control 3 because that was the only wire of the 4 that is coil 3 only and i did find the ground at pcm pin 73 had 3 volt drop i went back to the ground when i noticed the start/run relay ground showed a 3 volt drop but i pr...
2008 Chevrolet Malibu LT 2.4L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1G1ZH57B48
the 2 things i did was run a wire from pcm to coil 3 control and i did find that pcm ground pin 73 had a 3 volt drop and it did test good at one point during testing. g107 on the front o the blow was loose from a previous engine install and i think it just hap...
2012 Chevrolet Sonic LT 1.8L Hesitation, Surge, MIL Lamp on VIN: 1G1JD5SH3C
the fix turned out to be a new belt and tensioner (OE of course). I looked at the pins at the ECM, neither of the 2 knock sensor terminals were backed out or LOOKED bad (they are gold plated so it would have been easier to see a bad one). I didn't have the cor... Trouble codes: P0328 (Knock Sensor 1 Circuit High Bank 1).
2013 Chevrolet Express 3500 6.0L Stabilitrak VIN: 1GB0G2CG3D
Thanks for the help guys. Replaced has rate sensor and light stays off.
2014 Dodge Charger Pursuit 5.7L Mechanical VIN: 2C3CDXATXE
Noise is not that bad, they are going to live with it for now. Thanks to all who replied.
1987 Ford E-350 Econoline Custom 7.5L speed control VIN: 1FDKE30L6H
Thank you everyone for the help, especially Tim [...] for pointing me to the diagrams ... I went back into prodemand, diagram #4 and found the cruise circuits. the "ON" switch for the cruise is bad - installed momentary push button, read bellow for the proc...
2004 Ford F-150 FX4 5.4L Stall VIN: 1FTPX14504
Thanks for the help, I found the truck finally gave a P0605 internal pcm failure after numerous tries for codes, but it would only show up if you ran KOER test while it was failing. Replaced the PCM & left the motorcraft alternator on & truck never failed agai... Trouble codes: P0622.
2012 Ford Escape XLT 2.5L run circuits VIN: 1FMCU0D75C
I am calling this a fix-at least it is working. After disconnecting solely the smart junction block power wire (cutting it) and then running the vehicle that way, then reconnecting it, the vehicle refused to act up for several days. I gave it back to the custo...
1997 Jeep Grand Cherokee Limited 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GZ78S0V
This truck is fixed. I found after running for a while the front oxygen sensor got stuck rich as well. Creating a large vacuum leak (brake booster hose removed) did not drive it lean just like the rear one in my previous testing. So it needed both front and ... Trouble codes: P0171 (engine lean).
2008 Jeep Grand Cherokee Limited 4.7L Cuts out VIN: 1J8HS58N88
first let me thank everyone that help me out with this headache! timothy [...], Christopher ruggiera, chip cambell,kevin smith. I pulled plugs out and they were all wrong, it had 8 champions [...]. I orderd 16 plugs from dodge, 8... Trouble codes: P0688.
2011 Mini Cooper 1.6L Dme VIN: WMWSU3C56B
Well, after sending the DME to G7 to get fixed it came back still no communication...Got another used DME, communication came back and fuel pump would come on, still no spark and no start though and had new codes for APP and some other sensors. Got ANOTHER use...
2008 Toyota Highlander Limited 3.5L MIL Lamp on VIN: JTEDS42A78
Thanks for the replies. So i took everyones advice and used the scan tool to force the evap monitor to run. The results were everything passed. The gas cap seemed to kick back some when clicked to a stop. I suspect this was what caused the orginal problem as ... Trouble codes: P0441, P0455.
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