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Prev Professional Automotive Repair Technical Discussions for April 26, 2018
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Open Help Requests for All Makes and Models
Help Request Answers
2011 BMW X5 xDrive35i 3.0L high pressure fuel pump VIN: 5UXZV4C57B
Ok the vehicle is in for a intermittent running rough on cold start (only happens once a week). Found codes for misfiring on all cylinders and codes: 2BEE high pressure fuel, plausibility, cold start presser low 2BF8 rail pressure sensor,signal permanen...
2011 BMW 328i xDrive 3.0L MIL Lamp on VIN: WBAPK7C52B
Hi all, im at a disadvantage here with this car. Customer came in with whistling noise and oil leaking onto exhaust. After seeing this problem before i went ahead and changed out the valve cover. when removing the eccentric shaft adjusting motor the shaft ... Trouble codes: P0015
2002 Dodge Ram 2500 5.9L Driver squib ckt VIN: 3B7KC26Z82
Airbag light is on and the code does not have the usual BXXX dtc. It just says "DTC Driver squib circuit open." Code will not clear. Removed drivers airbag and shorted line 1 BK/LB and line 2 DG/LB from airbag control module at steering wheel. Removed airb...
2007 Dodge Caliber SE 2.0L vibration VIN: 1B3HB28B77
Customer brought in vehicle due to vibration between 15 and 35 mph. We duplicated concern and immediately found p/s axle inner joint bad. replaced axle and test driven, better, but still could feel something on d/s. Replaced D/S with new axle like the p/s....
1992 Ford E-150 Econoline 5.0L No Start, Stall VIN: 1FDEE14N7N
This van intermittently runs rough and stalls cold with a no start. I can consistently get it to no start if I start it cold and let it run until fast idle ends then turn off and let sit for 30 seconds. Vehicle acts like its flooding out as I can always get it...
2004 Ford F-350 Super Duty Harley-Davidson Edition 6.0L No start VIN: 1FTSW31PX4
Customer dropped truck off with a no start. Its a 2004 Ford F250 6.0 Powerstroke. Ive checked compression on all 8 cylinders. They are around 350 PSI. Checked fuel pressure that is at 50 PSI. Checked ICP Pressure when starting and that is at 1,200 PSI. No ...
2011 Ford F-150 Platinum 3.5L MIL Lamp on VIN: 1FTFW1ET9B
Help!!! I have this pick up with a solid code P007d boost/air charge temp sensor voltage high. Hooked scanner up and looked at the voltage pid and it says 5.00 volts and the temp is -38 deg. Checked sensor and it was plugged in. Found a tsb on MOD and it said ... Trouble codes: P007D
2016 Ford Transit Connect XL 2.5L MIL Lamp on VIN: NM0LS7E70G
Hi techs. I have a Po340/P0344 setting after a few days. Will not set if we clear it and drive it around. Takes a few days of client driving to set. We installed a new cam sensor from Ford. Scanner shows sensors in sync all the time and no faults for readings ... Trouble codes: P0340 (Camshaft signal), P0344 (Intermittent loss of camshaft signal)
2010 Infiniti G37 3.7L Cyl#5 Misfire VIN: JN1CV6AP7A
The customer stated the vehicle had a cyl #5 misfire that randomly developed. The customer swapped ingition coils and the misfire did not follow the coils but remained at cyl #5. Next, the customer replaced the spark plug for cyl #5, also no improvement. ...
2009 Jeep Compass Sport 2.4L abs VIN: 1J4FF47B79
Looking for some help with this Jeep. Vehicle came in with a C2116 code in the ABS system. After going through the diagnostic tree in Mitchell, I concluded that the module was bad. I load tested the power feeds and the grounds and found no problem. I obser...
2011 Land Rover Range Rover Sport Supercharged 5.0L Poor Idle Quality, Misfire VIN: SALSH2E4XB
Vehicle came in with P0171 code and fuel pressure codes. Replaced both high pressure fuel pumps along with high pressure fuel sensor and fuel codes went away but P0171 was apparent after numerous key cycles. Smoke tested engine and found passenger side val... Trouble codes: P0301 (p0302-), P0302 (p0303-), P0303 (p0304-), P0304 (p0305-), P0305, P0306 (testing and results)
2006 Mazda RX-8 1.3L No Start VIN: SE3P137176
Hi all I have this right hand drive RX8 that the customer lost all of the keys for. The locksmith tried programming two new keys but to no avail. What happens is the theft light will stop flashing when he programmes but no crank. Once you turn the ignition...
2010 Mazda 3 i 2.0L MIL Lamp on VIN: JM1BL1SF8A
Hello, I have this Mazda with an intermittent check engine light. First time it came in with light off. Had p0101 stored in computer. Maf sensor circuit range/performance problem.Did a VE test and it was 96 percent. Didn't see anything in Freeze frame data... Trouble codes: P0101
1990 Mitsubishi Montero 3.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: JA4GJ31S6L
We have a rich running Montero with a MAF DTC. The customer supplied us another used MAF sensor which has the same frequency output of around 2k HZ. So both are failed units, as the spec is around 40 hz at idle. This part is not available from any of our local...
2009 Nissan Altima S 2.5L Hesitation VIN: 1N4AL21E39
Hello everyone! This vehicle has no codes in ECM/TCM. The symtoms are hesitation/no acceleration from a stopped position. This is intermittent, can happen many times during one drive cycle or not at all. It only happens after coming to a complete stop, nev...
2008 Subaru Tribeca Limited 3.6L Engine VIN: 4S4WX92D78
Loud engine tapping / knocking noise from the engine. It is consistent with what sounds to me like a dropped valve seat but louder. Engine does not misfire currently and no codes are stored. I have read about the timing chain tensioner causing noises but c...
2010 Toyota Sequoia Platinum 5.7L collapsed VIN: 5TDDW5G16A
Hi Guys; anybody out there know of a good rear suspension air spring to coil conversion kit for a 2nd gen sequoia? Looked on arnott & strutmaster but they don't have any for that particular model... and was not able to find any other ones... rear suspensio...
2001 Volkswagen Passat GLS 1.8L battery draw VIN: WVWPD63B11
Car came in for draw, confirmed 800 miliamps. Voltage dropped fuses and found activity on fuse 15- cluster, 14- P Locks, and 38, can't remember exactly but think door locks and comfort control module. Pulled fuses and knocked down draw to about 250 mA. Pat...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 Acura TSX 2.4L interior light circut VIN: JH4CL96926
Well I figured it out after spending more time than I like to on a job like this. It turns out that what I thought was the HFL module was not. the last 5 HFL I replaced were all up in with the map lights, turns out that the module for this one is located behin...
2006 Cadillac DTS 4.6L high idle VIN: 1G6KD57Y86
Thanks to all who replied, after disconnecting the battery overnight then reconnecting then I drove for an hour or so it seemed to get better by itself, finally a day later everything went back to normal idle. There is really no throttle body relearn procedur...
1990 Chevrolet Corvette 5.7L Auto HVAC disabled VIN: 1G1YY238XL
Thank you to those of you that replied. I replaced the programmer again with another refurbished unit and now the system works correctly.
2008 Chevrolet Colorado LT 3.7L No Start, Stall VIN: 1GCDT43E18
Vehicle was towed in due to overheating. Temp sensor reading incorrectly. Replaced ECT. Readings steadied. Drove fine but sitll overheated after 20 minutes of riving. Removed Cyl head and found head gasket blown on cyl 3 and 4. Replaced head gasket. Timing cha...
2015 Chevrolet Tahoe LTZ 5.3L starter relay VIN: 1GNSKCKC8F
The steering wheel control module lost it's code from the immobilizer when we disconnected the battery. Reprogrammed and now the truck start but the security light is on. The customer only has one key and the system need two programmed keys or the security lig...
1987 Ford Bronco II Eddie Bauer 2.9L Poor Idle Quality VIN: 1FMCU14T0H
Thanks everyone for your suggestions. I smoke tested the intake, no leaks found after repairing some minor ones. Tried known good ect, iat, tps sensors and a iac valve. No effect. Base timing was 10*. KOEO and KOER tests passed. It finally would only surge for...
2005 Ford E-350 Super Duty 6.0L No Start VIN: 1FTSS34P25
thankyou for all the good advise I had to use a oem ford parts cam and crank sensor you guys are all the best. tom
2011 Ford Fiesta SE 1.6L Hesitation, Cuts out, Stall VIN: 3FADP4EJXB
I would like to thank everyone that gave input on this repair. So unplugging everything turned out to be a major coincidence. After attempting several things and going over and over again on the same things, it turns out that the fuel pump finally gave up the ...
2006 Hyundai Elantra GLS 2.0L Hesitation, Stall, MIL Lamp on VIN: KMHDN46D46
Thank you to all who replied. The MAF sensor was the culprit. I installed a Denso MAF which I found out is the OE manufacturer for Hyundai. I do not have scope capabilities, so your insight was very helpful. Curt Trouble codes: P0102.
2006 Hyundai Sonata GLS 3.3L Engine VIN: 5NPEU46F86
Thanks for the input. I am going to call this a fix even though the car isn't yet complete. I had already looked at the oil pressure and oil temperature sensors so I knew they were OK. The oil temperature sensor TSB was helpful, but not the ultimate problem. I...
2007 Jeep Patriot Limited 2.4L Ac VIN: 1J8FT28W17
Well customer decided to pick up and drive, she has reported that it cools enough right now but it hasn't really been very hot outside yet. Thank you to the 3 who offered help, I did hook up scope at compressor and didn't see a change in the waveform when it q...
2014 Land Rover Range Rover Sport HSE 3.0L Misfire, MIL Lamp on, High Idle @ start up VIN: SALWR2WF0E
Performed a second smoke test via the bank 2 valve cover breather hole. Located leak at PCV valve on the bank 1 valve cover and a leak at supercharger shaft seal, right behind the pulley. Customer declined repair. Thank all those who helped out. Trouble codes: P0300 (Random Misfire detected), P0306 (Cylinder 6 Misfire detected), P2187 (System too Lean at Idle - Bank 1), P2189 (System too Lean at Idle - Bank 2).
2010 Subaru Outback 2.5i 2.5L subfan VIN: 4S4BRBEC9A
Sub fan was causing fuse to blow but when car overheated it either toasted head gasket or some other failure allowing combustion gas into the cooling system only when car was hot as confirmed by chemical test. Thank you for all the replies!
2003 Toyota Camry LE 3.0L Poor Idle Quality, Stall VIN: 4T1BF30K33
Thanks for all replies. All replies suggesting cleaning throttle body was correct. This car has no IAC valve. I did update the miles to 70k. I've been doing this 45 years and have not seen an idle problem exactly like this. This motor will idle down slowly to...
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