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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 9, 2021
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2009 Audi A4 Quattro 2.0L engine VIN: WAULF68K79
At idle only engine runs rough and has engine knock. Increase the idle slightly above idle and knock is gone and runs great. Is there an oil pressure check valve or controller for oil pressure that differentiates idle from higher RPM? Lots of reading, noth...
2007 Buick LaCrosse CXL 3.8L No Start, Misfire, MIL Lamp on VIN: 2G4WD55247
Car came in for head gaskets, parked after and died, someone else at the shop replaced the ignition module and crank sensor. Left and couple weeks later towed in for no start, no spark. Replaced ignition module again and left. Towed in again couple weeks l... Trouble codes: P0300
2008 Ford F-350 Super Duty XL 5.4L Misfire VIN: 1FDSF30578
The truck came in running very rough and noisy. We knew there was a problem with the timing chains so we started with changing them. Once the repair was done the truck started and sounded fine. Then we took it for a test drive and once you put it in gear i... Trouble codes: P0300, P0305, P0307, P0022
2001 Jeep Cherokee Sport 4.0L No Start VIN: 1J4FF48S31
No start was towed in, hooked up scanner will scan shows no codes for a starting problem but battery was dead, charged battery when turning over backfires like it's out of time. Pulled timing cover off #1 on comp. stroke top gear was at 12 and crank at 12,...
2011 Porsche Cayenne S 4.8L SRS system VIN: WP1AB2A21B
We hope someone was through this before: air bag warning stays on. We found very little info on this issue. Pass. side SIDE air bag - located in the right front door seems to be the cause. When we unplugged the connector in the R/Frt A-pillar the same code...
2012 Toyota Camry XLE 2.5L No Start VIN: 4T1BF1FK3C
Hi all, The car came to us after a body shop repair. Cranks no start. The under hood fuse block had bad wires and the internal relays were bad. We replaced the fuse block and repaired the wiring. now when we crank the engine we get spark for about 3 second...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1997 Honda Accord LX 2.2L Not sure VIN: 1HGCD5539V
Customer needed to take the car before I could investigate further. Here are the items suggested in the replies: Engine and transmission mounts, especially the one by the firewall. CV joints. Radius rod bushings. Centering the engine. Front axle nuts. Brake p...
2013 Mercedes-Benz C250 1.8L MIL Lamp on VIN: WDDGF4HB0D
I always like to try the least expensive,least labor intensive thing first, so we went for doing a Liqui Moly engine flush that they recommend in their catalog with their list of products and procedures. It worked, the vehicle has been on the road for a week a... Trouble codes: P0304 (Combustion misfiring of cylinder 4), P0313 (Combustion misfire with active fuel reserve signal), P61A9.
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