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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 8, 2020
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Open Help Requests for All Makes and Models
Help Request Answers
1988 BMW 325i 2.5L No Start VIN: WBABB2303J
Old school Bimmer techs; this e30 cranks but no start, has no spark or inj.pulse while crancking. Here's the work/diag on it done so far: checked timing belt / timing ok Replaced crank/engine speed sensor on front crank pulley DME relay ok (replaced anyway...
2011 BMW X5 xDrive35d 3.0L reduced engine power VIN: 5UXZW0C55B
BMW Diesel techs, need some advise here. I don't see many of these so not to experienced with the bmw diesels. I good customer of mine contacted me and wanted me to pull and clean his egr valve because he had a check engine light and all codes had to do wi... Trouble codes: 4862 (Air system air to egr mass flow plausibility), 4507 (egr controller deviation)
2013 BMW X3 xDrive28i 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 5UXWX9C50D
This one has been no fun, after replacing the timing chain the engine started and idled quite well for around 30mins, upon acceleration the engine misfired on cyl #4, checked coil and plug and found okay, swapped coil and plug with cyl #3 and engine still ... Trouble codes: P0300 (Random/Multiple misfire detected), P0301 (cylinder 1 misfire detected), P0302 (cylinder 2 misfire detected), P0303 (cylinder 3 misfire detected), P0304 (cylinder 4 misfire detected)
2005 Chevrolet Silverado 2500 HD 6.0L Misfire VIN: 1GCHK29U55
This is my pov. Intermittent #2 misfire. #6 misfires slightly occasionally. The misfires are only felt at idle. Seems to only show on scanner at idle. I replaced the cats due to the high backpressure. Not much power gain like I though it would. The truck d... Trouble codes: P0302 (Cylinder 2 misfire), P0300 (Random misfire)
2012 Chevrolet Silverado 3500 HD LT 6.6L No Start, Stall VIN: 1GB5KZCL8C
no start no codes only thing abnormal is with both matco and snao on scanner it shows fpr2 high control shrt to ground (fault) checked rail pressure at crank no start only showing 140 psi which is why it wont start have found no metal anywhere in system as...
2013 Chevrolet Suburban 1500 LT 5.3L Poor Idle Quality VIN: 1GNSCJE07D
hey guys i need some help with this one. im getting it after another tech went through it and said it needs an engine. he got halfway through the swap then was laid off due to coronavirus and now im stuck with it. it was sent to the dealer, dealer said fue...
2005 Chrysler 300 C 5.7L running poor VIN: 2C3AA63H05
Hello, working on a another "problem child" This one will start and run but if you dont keep some light pressure on the throttle it wont idle very good and stall. Sounds like its running rich and looking at the sparkplugs they are black and sooty. Disconne...
2007 Dodge Grand Caravan SE 3.3L Mechanical VIN: 1D8GP24E47
Hey guys, just replaced compressor, drier and X valve on this van. The old compressor was locked up. I flushed the lines before I installed the new parts. The problem I am having is after it runs awhile the low side almost reaches 0 and the high side might...
2009 Ford Mustang 4.0L Cuts out, Stall, MIL Lamp on VIN: 1ZVHT80N79
I am struggling with this one. I have done a ton of these cars. The car had a seized cam and broken timing guides. The left head had three bent exhaust valves. All repairs completed. I am getting a P0320 Ignition distributor engine speed circuit fault. Ori... Trouble codes: P0320
2017 Ford F-250 Super Duty Lariat 6.2L No Start, Excessive cranking t VIN: 1FT7W2B64J
Was not able to T into fuel supply. Read approx 62 psi. Pressure drops almost immediately to close to zero. Is there a check valve in the fuel pump too hold pressure koeo? Crank time most of the time is at least 5 seconds. Thanks
2006 GMC Savana 2500 4.8L No Start, Poor Idle Quality, Misfire VIN: 1GTGG25V86
Ladies and gentlemen, welcome to my nightmare! Sorry about the long post. This van was towed in to us for a crank/no start condition. One of the techs spent some time diagnosing and called a fuel pump for lack of fuel pressure. Once pump was changed, vehic...
2008 GMC Sierra 1500 SLE 5.3L TCC Slip VIN: 3GTEC13J78
When driving truck between 40-45 mph the rpm's surge anywhere from 100 to 200. Watching data the rpm gauge is matching TCC slip rpm on scan tool. Its not an AFM issue. I can turn on tcc solenoid and issue goes away. Took it to dealer for second time and no...
2015 Mazda CX-5 Touring 2.5L MIL Lamp on VIN: JM3KE4DY7F
Belt came off while driving, cust pulled over when all lights came, shut car off would not re-start. Towed vehicle in, replaced belt and tensioner charged battery fully and cleared all codes. Now keeps getting a code p0421 for warm up cat efficiency had it... Trouble codes: P0421 (Reprogrammed pcm for tsb bullitin 01-010-16)
2000 Mercury Sable LS Premium 3.0L No Start VIN: 1MEFM55S7Y
Customer complains of "intermittent" extended crank.. Car had been in prior and I had been unable to duplicate the issue.. until now. the vehicle will crank extensively ( 20+ seconds ) before starting, or I will allow the key to rest, before re-crank...
2010 Toyota Tundra Limited 5.7L Air Control VIN: 5TFBW5F12A
Thanks in advance for your attention. The driver side temp door is inoperable. We have replaced the amplifier & door actuator, but appear to be getting no signal to change. the pass.side is operating correctly & the door is able to move manually. Is there ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2013 Fiat 500 Abarth Cabrio 1.4L Misfire, MIL Lamp on VIN: 3C3CFFJH4D
Got a new throttle body from Chrysler last week and just installed it. Starts and idles fine. Won't be able to road test until the weekend but need to close this request before it expired. Thanks to everyone who offered advice. Trouble codes: P2172 (High airflow vacuum leak detected), P0507 (idle speed higher than expected).
2012 Ford Focus SE 2.0L Starter/Communication VIN: 1FAHP3F21C
She's fixed and paid for! Lots of help here. Special thanks to Michael [...] for checking TCM history and open campaigns for me. My local dealer wouldn't even do that. They did tell me about warranty coverage. I had voltage drop tested lots of things, even...
2015 Ford F-150 XLT 2.7L cooling fan VIN: 1FTEX1EP7F
I replaced both relays for the cooling fan on the right side and vehicle has been good for a week now.
2013 Honda Accord LX 2.4L electric steering
thanks for all the replies.had the car sent to dealer & according to the customer,they had to replace the rack,as the used one he furnished was bad..we had suspected a bad rack also. so the customers daughter needs to watch out for poles at gas stations i thin...
2004 Hummer H2 6.0L Unknown VIN: 5GRGN23U94
thanks to all who replied took a chance stripped the wiring harness out of the dash and to my surprise someone installed a radio at one point and something in dash had rubbed through wiring harness about 6 wires in all repaired wires and all works well. very g...
2010 Lincoln MKS EcoBoost 3.5L Blower Motor VIN: 1LNHL9FT4A
It ended up being something simple as it usually does. I back probed the connector at the speed controller to read the PWM signal. After I inserted the pin the blower functioned normally, removing the pin and wiggling the connector the blower would stop. I rem...
2000 Nissan Frontier XE 3.3L Pcm VIN: 1N6ED26T0Y
First off, thanks to all. I will say I have fixed the truck but in all honesty I did nothing other than drive it two times for extended periods (could not induce a failure) and a few tests. The thing runs like a top at low and high speed, pulling hills, acce...
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