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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 13, 2022
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Open Help Requests for All Makes and Models
Help Request Answers
1995 Chevrolet C3500 7.4L No Start, Stall VIN: 1GCHC39N5S
This truck will try to start, and then stall, apparently due to flooding. It started after a corporate-owned "muffler, brake, and service" shop did some unrelated repairs. They couldn't figure it out, so they had it towed to a Buick/GMC dealer nearby. The ...
2009 GMC Sierra 1500 SL 4.8L temp gauge/cool fan VIN: 3GTEC13C39
The temp gauge will go up to 210 and stay there while driving. Then after sitting for 5-10 minutes the gauge will start climbing to about 230. Then the fans start up and temp gauge goes back to normal. I had a 2002 and now 2018 and they both run that same ...
2017 GMC Canyon SL 2.8L No Start VIN: 1GTP6EE13H
Hi this truck was towed because of no start no crank. could not communicate with various modules including tcm, ecm power steering module. between pin 6 and 14 i had 120 ohms. I hooked up a scope to pin 14 on obd2 white wire and the voltage was higher than... Trouble codes: U0073, U0077, U0100, U0101, U0131, U420;
2014 Ram 1500 Sport 5.7L Misfire, MIL Lamp on VIN: 1C6RR7HT0E
We had this truck with a 5.7L come in with a bad camshaft. We deleted he DOD system and installed new cylinder heads, cam and lifters and all the spark plugs and one coil. Got the engine running and after a few miles the engine started to misfire and #6 cy... Trouble codes: P0306
2007 Toyota Highlander Hybrid 3.3L abs VIN: JTEEW21AX7
The customer claims the vehicle "will not accelerate", and the speedometer reads 0 when this happens, but I have not been able to duplicate the problem on several road tests. We have vehicle speed sensor codes for all 4 wheels, C0200, C0205, C0210, C0215, ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2007 BMW 335i 3.0L Feels like a Misfire VIN: WBAVB73537
The customer sold the car to the local Mercedes dealer. So I will not be continuing to trace this issue. I did replace the spark plugs with no change and took it on a longer test drive. I then noticed that the tach would go down like the torque converter was t...
2011 Chevrolet Traverse LT 3.6L MIL Lamp on VIN: 1GNKVGED1B
Some of the problems seem to be fixed, and that's all the customer is able to afford for now. Thank you as always for your helpful replies. I did think there could be a vacuum leak, but a smoke check did not reveal any intake leaks at all. Also, it idled qu... Trouble codes: P0101 (Mass Air Flow Sensor), P0101 (Mass Air Flow Sensor).
2011 Volvo XC90 3.2 3.2L No Start VIN: YV4952CZ8B
I replaced the fuel pump. Pressure gauge broke. Had to use a different gauge. It read 80+ cranking, originally 42 psi with old gauge so now I don't know if the pump was bad or my guage. The car was towed to a Volvo specialist. They say that the problem is the ... Trouble codes: P061F.
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