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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 29, 2019
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2003 Cadillac CTS 3.2L No continuity from horn relay ground wire 2 the ho VIN: 1G6DM57N93
What a PITA, for such a simple system. After disabling the airbags and removing the combination driver's airbag module / horn button, I found I have no power coming from the trigger wire which goes between the horn button and the horn relay. Alldata's sche...
2001 Dodge Dakota Sport 4.7L No Start, Stall VIN: 1B7HG2AN91
This is a tough one. The engine starts and stalls, but will sometimes idle normally. Trouble lights switch on and off randomly and the "No Bus" message is always displayed on the cluster. This came from another shop where they installed a reman. ECM and ne... Trouble codes: SK1M, SK1M, P1686 (No SKIM BUS message recieved)
2004 Dodge Ram 1500 ST 5.7L Misfire VIN: 1D7HU18D54
This truck came in running very poorly. Had all the codes listed. Testing was performed on the EGR and #7 injector. Both were replaced and now it no longer sets codes for them. It still shows misfires on #7 but only after the rpms are raised. If left to id... Trouble codes: P0157 (2/2 O2 sensor voltage low), P0137 (1/2 O2 sensor voltage low), P0300 (Multiple cylinder misfire), P0307 (Cylinder 7 misfire), P0404 (EGR circuit range/performance), P0207 (Injector circuit open cylinder 7)
2014 Fiat 500L Lounge 1.4L 6th gear VIN: ZFBCFABH1E
This car will not shift into 6th gear. After initial failure, then defaults to only having gears 1, 3 and 5. Shut car off and start again, same process. Transmission module scan says "unknown variant". So, I can't retrieve codes or see any PIDS. Local...
2006 Ford F-350 Super Duty XLT 6.0L Poor Idle Quality, Misfire VIN: 1FTWW33P86
I have a 6.0 powerstroke which we have replaced all 8 injectors due to an extremely hard cold start and misfire. The problem occurs after the vehicle is at operating temperature and oil temp is at 185. The problem is only present with no engine load (i.e. ...
2012 Jeep Grand Cherokee Limited 5.7L No Start VIN: 1C4RJFBT1C
vehicle will not crank, starter does not even click, my scan tool will not comm with ecm, trans,abs,adcm,adaptive cruise, suspension cont, elect p/s, power lift gate there may be others I haven't checked all modules. I checked powers and grounds to ecm, no... Trouble codes: U0141, U0141, U0141, U0141, U0141, U0141
2018 Lincoln navigator 5.3L abs
Rear brake pads are worn out on this Navigator and I searched Identifix for the rear brake pad replacement procedure but was not able to find any information on how to do it. It is a 2018 model and I even checked for a 2017 and no info was available. I wou...
2001 Mitsubishi Montero Limited 3.5L shifting VIN: JA4MW51R01
This is our shop vehicle for years in great shape. Always serviced and well maintained. I'll say up front I haven't gone to great lengths yet to diagnose as I think I might know what's going on. So bear with me. Problem started recently during a typical...
1999 Porsche Boxster 2.5L Convertible top VIN: WP0CA2989X
Thanks in advance to all the great iatn members out there. This Porsche convertible has been a fun one. Came in with top inop was able to power up motor and get it closed. Customer then decided to fix top the proper way. I do not have a scan tool capable o...
2009 Porsche Boxster 2.9L Clutch VIN: WP0CA298X9
We replaced clutch kit and flywheel on a 2009 Porsche Boxster 2.9L base model. We used OE Sachs clutch kit from SSF and a flywheel from our local Porsche dealer, and all visible part numbers correlated and new parts seemed to match old parts. Reassembled c...
2014 Porsche Boxster S 3.4L active mount VIN: WP0CB2A81E
We have a Boxter S with a PADM warning in the cluster. (says may still be driven on). I've scanned the vehicle with both a Autologic Drivepro and Snapon Zeus. was unable to find any PID data on the active mounts themselves. was able to pull codes from the ...
2016 Subaru WRX 2.0L MIL Lamp on VIN: JF1VA1B68G
Car throws a P0030 code for the O2 sensor heater that comes back 100 miles or so after being erased. This is the front 5 wire sensor. Disconnected the connector and tested for 12V to the heater on the harness side after turning the ignition on and it's goo... Trouble codes: P0030 (O2 heater control circuit bank 1 sensor)
2006 Toyota Tacoma 4.0L # 5 cylinder misfire VIN: 5TELU42N76
Intermittent #5cyl misfire. Came in dead skip. installed new coil and sparkplug came back 2 days later skipping #5. Would skip for about 10sec on first start up then smooth out. Could not get dead skip again. Replaced injector, came back next day skipping ...
2008 Toyota Matrix XR 1.8L Radio, lights, engine VIN: 2T1KR32E58
This one has me stumped, the complaint is that intermittently the vehicle cuts off/goes dead momentarily, the customer says that the lights and radio all cut off with the engine, but will the engine will restart with no problem and everything else comes ba...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2010 BMW 535i xDrive 3.0L MIL Lamp on VIN: WBAPT7C50A
Thanks for all the responses. This one turned out to be a bit of a challenge none of the usual culprits were to blame. Turned out to be about 4 gallons of water in the gas tank. so all and all simple. Drained tank flushed out and filled with good gas no water.... Trouble codes: 29E0.
1979 Ferrari 308 GTS 3.0L Poor Idle Quality VIN: F106HS3055
Thanks for the replies, we rechecked timing and adjusted, no vacuum leaks found, and just played around with the carb synchronization and mixture and got it running pretty well. Very fussy engine. Thanks again.
2004 Ford Expedition Eddie Bauer 5.4L Unknown VIN: 1FMFU18L64
Thanks to all the customer has decided to wait till spring to peruse the ac fix. We highly suspect there is contamination from old compressor failure and will need to find and flush the debris from system. Will have to wait till spring for a 100% answer. But I...
2015 Kia Forte LX 1.8L engine misfire VIN: KNAFK4A66F
Thanks to all for your feedback and help. the car is finally fixed the problem was two coroded pins a the pcm connector. i hook up a scope a coil pack on the control pin and found some irregularity a the coil pack cyl 1 and 2. test the wire and finally found ...
2002 Lexus RX300 3.0L traction control VIN: JTJHF10U82
After cleaning all the sensor mounting surfaces still had proble then we found rack and pinion mounting bushings rotted away replaced bushings and did wheel alignment all good thanks again.
2008 Nissan Altima 2.5L Sensor VIN: 1N4AL21E28
Thanks for all the replies, many good ideas. There are 2 ways to relearn the sensors. Tried to relearn them in the bay and the sensor I replaced twice would not complete relearn. Read a paragraph on the Snap On tpms tool about "waking up" the sensor. Did this ...
2011 Volkswagen Jetta TDI 2.0L Excessive Emissions, Excessive Emissions VIN: 3VW3L7AJXB
Customer took to dealer for some good will warranty work,failed turbo,failed intake flap motor and intake,plus both nox converters.just as we suspected. Trouble codes: 01117, 01117, 01117, 01117, 01117.
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