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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 9, 2021
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Open Help Requests for All Makes and Models
Help Request Answers
1996 Chevrolet Impala SS 5.7L Surge, Stall VIN: 1G1BL52P0T
Okay so after testing every part we can't seem to figure out what is causing the surging idle on this car. It only does it hot, in gear or not it doesn't matter. Sometimes the surge is so bad it stalls. It usually does it at below 620 rpm. As the idle slow...
2010 Chevrolet Silverado 1500 LS 4.8L Cuts out VIN: 3GCRCREA6A
Truck came in a couple weeks ago for oil change [1k miles over but truck is driven mostly highway miles] and CEL for p0341 and engine cutting out when accelerating. Freeze frame shows truck was on highway and under load. Changed oil and filter, cleared cod... Trouble codes: P0341 (Camshaft Pos Sensor Performance), P0341 (Camshaft Pos Sensor Performance)
2002 Hyundai Santa Fe GLS 2.7L oil pressure to rear bank VIN: KM8SC73D82
Ok, as history notes, just installed a used engine into this vehicle. on start up I was hearing what sounded "like lifters" not pumping up, not knocking more like a clatter, this is mainly from the rear bank. oil light turned off, but noise still there. en...
2008 Subaru Impreza 2.5i 2.5L MIL Lamp on VIN: JF1GE61688
Vehicle came in with check engine light and only 1 fault- P0641A, throttle position sensor circuit reference voltage. Fault is intermittent and comes back anywhere between 15 and 80 miles. Can't reproduce in the shop. There are 5 sensors that share referen... Trouble codes: P0641
2000 Toyota 4Runner SR5 3.4L ignition switch VIN: JT3HN86R3Y
Key will not turn to lock position to remove key. Replaced key and tumbler and didn't help.If you unplug the shift interlock module near the shift lever in the console, you can then turn the key all the way off and remove the key. Has anyone replaced the m...
2015 Volvo XC60 T5 2.5L No Start VIN: YV4612RK9F
Happy Friday gentlemen, This Volvo came in with a jumped timing belt with caused valves to bend. The head was sent out to a local machine shop to have valve replaced. After head was installed, vehicle is not starting and compression is low (90psi). D...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2016 Chevrolet Cruze Limited LT 1.4L ac compressor VIN: 1G1PF5SB6G
Replacing the drive belt and tensioner fixed the knocking noise. Apparently the tensioner was hitting metal to metal only with enough load from the a/c compressor running. Thanks for all the replies everyone. Dave
2017 Ford F-250 Super Duty XL 6.2L Misfire, MIL Lamp on VIN: 1FT7X2B65H
We were leaning toward a failing head gasket or cracked head. Two people suggested leaving pressure on cooling system overnight. After 32 hours with pressure on it we found "crystals" forming on cylinder wall and what appears to be liquid around piston. Waiti... Trouble codes: P0300 (Random cylinder misfire), P0302 (Misfire cylinder 2), P0316 (Misfire on startup).
2016 Land Rover LR4 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: SALAK2V67G
replaced the pcm and had another shop program it we then found several inoperative ignition coils an replaced them... now it requires a new catalytic converter... Trouble codes: P0300, P0301, P0302, P2300.
1999 Toyota Tacoma Pre Runner 3.4L Excessive Emissions VIN: 4TASN92N1X
To summarize most of the responses are a bad or poor performing cat, compression is even @ 170 psi SPEC = 174 psi. cooling system performance good. was able to swap the cat with another after market converter from another truck for testing and knox emissions d...
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