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Prev Professional Automotive Repair Technical Discussions for March 27, 2015
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Open Help Requests for All Makes and Models
Help Request Answers
2002 Audi A4 Quattro Avant 3.0L Cooling Fans VIN: WAUVT68E52
I am reopening this request as when I previously did there was a post with the exact issue that I could not find in tech help or knowledge base after I read it but my cooling fans run on high when they run on high speed only not continually as some seem to rea...
2004 Audi A6 Quattro 2.7L Misfire, MIL Lamp on VIN: WAUCD64B34
to all Audi gurus out there. got this A6 pulling my hair. was in a fender bender on the right side. wiring looks ok. has this misfire on just the passenger right bank. replaced the camshaft sensor to no avail. don't know where else to look. help guys. thanks e... Trouble codes: P0341, P0300, P0301, P0302, P0303
2008 BMW 328i 3.0L Poor Idle Quality, Hesitation, Misfire VIN: WBAWR33548
We replaced the V.C. gasket for oil leaks, ran fine post repair. Jumped it to confirm no oil leaks next day and it ran fine until I revved it up, it then idled rough and whistled. The whistle was from really high crankcase vacuum. Did nothing but restart it an... Trouble codes: 2A82, 2A98
2004 Cadillac SRX 3.6L key stuck in cylinder VIN: 1GYEE63744
im sure this is a common problem but any help would be appreciated, thanks in advance
1999 Chevrolet K2500 7.4L Timing VIN: 1GCGK24J5X
Please Help I Think ECM is Confused From Running out of fuel during Cam & Crank Calibration
1996 Dodge Stratus 2.4L Injector VIN: 1B3EJ46X3T
Car was towed in for no start condition but of course it started. Started wiggling wiers and it stalled and wouldn't restart. Found no cam sensor signal in my datastream. Replaced cam sensor and pigtail (original was old style, new is new style connector). Car...
2008 Dodge Sprinter 2500 3.0L ignition key
hi I need some help on this dodge which is same as the benz... it come with a tow truck which require the engine replacement... by that time the ignition key still able to turn to the second position to control the steering but after the engine replacement one...
2009 Dodge Durango SLT 4.7L Rear Diff VIN: 1D8HB48P79
Have a feeling this is coming to an end finally. I want to test the rear differential.First off its full time awd and no way to change the setting. I put the vehicle in neutral, put it on a lift. and notice when i spin the wheels the driveshaft sometimes catch...
2000 Ford Windstar SEL 3.8L Excessive Emissions, Poor Idle Quality VIN: 2FMDA5347Y
After replacing coil for extended crank customer now states vehicle has raw fuel smell and rough idle when first started after vehicle sits for a few hours. There are no codes fuel pressure 42 psi and does not drop. My question is Mass Air Flow reads 1.74 gram...
2001 Ford F-150 King Ranch 5.4L speedometer VIN: 1FTRW08L21
Hello to all you Ford GURUS, This truck came in with no start. After diagnosing replace the defective PATS sensor and the PCM. Program the unit with VCMII after which started truck, let it warm up, check fluids and let the truck go. Two days later truck return...
2002 Ford Escape XLT 3.0L Starting VIN: 1FMC0U3192
Hi all, It's been a long while since I've asked for some help.I need it on this one. This happens to be my kids car too. Yesterday the brake warning indicator stayed on dimly upon starting, then she noticed when left turn signal was on the brake warning light ...
1996 GMC K2500 Sierra SL 6.5L No Boost VIN: 1GTGK29F3T
This 6.5 intermittently has no boost and sets the code P1656. Has good vacuum to wastegate solenoid and the lines are in good condition. The wastegate actuator holds vacuum and the wastegate seems to move freely. I have replaced the solenoid, suspecting it mig... Trouble codes: P1656 (Intake CMP Actuator Solenoid Control Circuit)
2011 GMC Sierra 1500 SL 4.8L MIL Lamp on VIN: 3GTP1UEA4B
Truck came in with message in cluster that says "A/C disabled due to hot temp condition". the fans run all the time and a code P0116 is active. freeze frame shows that the code sets at 0 sec. (when you first turn key on) and coolant temp is 190F. we first repl... Trouble codes: P0116 (ECT sensor performance issue.)
1989 Honda Prelude 2.0 Si 2.0L Excessive Emissions, Poor Idle Quality, Surge VIN: JHMBA4231K
I need some help, When you start this car the cold idle flares up to about 3000 then starts to hunt up and down constantly, when warmed up the idle surges from 1200 and up to 1750 or so, I have no lights on on the PCM and I have checked the IAC resistance and ...
2007 Hyundai Tucson Limited 2.7L Mechanical
we have this suv come in run very poor power lost and pinging some when engine goes back to idle. code cam sensor problem p0340 we check timing mark look right on the money but the chain mark at the back of right side the mark it is not line up like the left s...
2008 Hyundai Sonata GLS 2.4L wipers VIN: 5NPET46C98
got a problem here. wipers will not shut off or high when on high and low in all other positions when you bull the bcm connector out - it would park sometimes. all circuits seem to be good but seems bcm still activating relay when in switch in the o...
2011 Isuzu Reach 3.0L Redundant injection valve stuck closed bank 1 VIN: JALB4W175B
Delivery truck Drove in at 5 mph. DEF fluid was empty. filled and cleared all dtc info vehicle ran fine for 60 miles. DTC p20c9 p205, p206 and p208e present replaced Redundant tank sending unit and Temp sensor as per dtc indicating temp sensor fault. cleared a...
2006 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALME15436
I have an interesting one here (not a fan of interesting). This Rover randomly sets a P2098 for system lean at post cat sensor. It never sets any other system lean codes or O2 sensor heater codes. I replaced the sensor after observing it reacting slower than t... Trouble codes: P2098 (Post catalyst fuel trim system too lean bank 2)
1992 Lexus LS400 4.0L MIL Lamp on VIN: JT8UF11E9N
Hey guys, hope you guys can shine some light on this one for me. I have been fighting this car for a couple weeks now. Came in initially for a check engine light coming on, and abs and tcs light coming on shortly after. Scanned and found code 52 for knock sens... Trouble codes: 52 (Knock Sensor Citcuit B1)
2010 Mini Cooper John Cooper Works 1.6L Map Thermostat, Cooling Fans
OK Mini techs, I have one that is a complete mystery and thorn in my side. I have worked on many of these but this one has me stumped. The car came in with overheating complaints. There was no flow through the radiator so we removed the water pump to find the ...
2008 Mitsubishi Lancer Evolution GSR 2.0L MIL Lamp on VIN: JA3AW86V98
check for intake leak it was ok.check for ecu upgrade and it had the newest update.check current data for map,maf and tps data and they seem ok.check wastegate actuator operation and it was ok.the code comes on after 2-3 seconds of hard acceleration always and... Trouble codes: P1235 (Mass Airflow Sensor Plausibility)
2004 Nissan Maxima SL 3.5L Transmission Control Module VIN: 1N4BA41EX4
Vehicle came in on the hook as a repossession with no key. Had new key cut and programmed and found transmission will not engage in drive or reverse. No communication to the Transmission Control Module (TCM). Verified power and ground to the TCM and replaced m...
1996 Volkswagen Golf GL 2.0L Misfire VIN: 3VWFL81H6T
This has been a real tough one for me, this is our shop service car and isnt going away till its fixed. The injectors cut out randomly on this car when its very hot under hood temperatures. Typically after running for an hour in summer weather, wont happen in ...
2005 Volkswagen Touareg 4.2L oil consumption VIN: WVGCM77LX5
hello, does anyone have an idea of what could be causing to burn or consumming a lot of engine oil? its been the second time that i have changed the oil on this car, but whe costumer brings it there is no oil in it, and he has to come here every month to check...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 BMW 325xi 2.5L Mechanical VIN: WBAEU33435
1999 Chevrolet Express 2500 5.7L turn signals VIN: 1GCGG25R2X
Problem was voltage bleed, park light circuit to turn circuit internal to both ft. sockets. yes both. I disagree that a 0.8 amp. 1157 bulb will draw enough current to properly stress test poor connections/grounds. Thatís why I use a 4 amp. headlight .I Cu...
2003 Chevrolet Avalanche 1500 North Face 5.3L transfer case VIN: 3GNEK13T93
Thank you for all the replies. After 2 encoder motors and replacing with a 3rd OEM motor it is fixed. Lesson learned, never trust aftermarket encoder motors!
2006 Chevrolet Impala LS 3.5L Misfire VIN: 2G1WB58K46
Thank you to all that offered advice. The fix in this case was simple. Number 5 spark plug wire was damaged by the owner trying to remove it in order to service the spark plugs. It was only found after pulling and flexing the cable with the ohmmeter installed....
1999 Ford F-250 Super Duty XLT 7.3L Misfire
I would like to thank everyone who replied to my post about this injector problem. I really appreciate IATN and all of you members for all of the help and support. Now for the fix. I drove the truck to see if the pcm would cycle the injectors, and after two mi...
2009 GMC Sierra 1500 SLT 5.3L No Start
OK GUYS and GIRLS this one was at the dealer for 3 weeks after they gave up on diagnostic GMC techline had them start throwing parts at it! pcm was the fix but they could provide no verification test to show bad pcm. Tech people in Detroit want the pcm for in... Trouble codes: C0561.
2002 Honda Civic LX 1.7L MIL Lamp on VIN: 1HGEM22522
The fix for this car was a new ECT sensor. I had mistaken the larger sensor on the thermostat cover for the ECT sensor when it was actually the radiator fan switch. The ECT sensor screws into the water outlet housing at the transmission end of the cylinder h... Trouble codes: P0128 (Engine coolant temp. below thermostat regulating temperature.).
2005 Honda Civic LX 1.7L No Start VIN: 2HGE516505
vehicle was purchased at a buy here pay here. customer declined further repair they were going to trade it in. Trouble codes: P0301 (Cylinder 1 misfire), P0302 (Cylinder 2 misfire), P0303 (Cylinder 3 misfire), P0300 (Random/Multiple misfire).
2005 Jaguar S-Type 3.0L Unknown VIN: SAJWA01TX5
needed a tranny and customer wasn't ready. thanks anyway for all those who responded
2009 Nissan Versa S 1.8L MIL Lamp on VIN: 3N1BC11E69
Well this car has a vacuum leak that I have not found. If I cover half of the air intake in front of mas airflow sensor fuel trims level out and run normal. I may have to just do intake gaskets and see what happens. Thanks again to all who responded. Trouble codes: P0171 (Fuel system to lean B1).
2006 Porsche Cayman S 3.4L Steering VIN: WP0AB29816
found a week power steering pump, but i guess it was not bad enough for the customer to want to do the job, and decline the repairs, thanks everybody for your help
2005 Saab 9-3 Arc 2.0L MIL Lamp on VIN: YS3FD79Y35
First I want to thank everyone for taking their time to help us with this problem. The fix was to cut out bad sections of wiring in the harness under the battery. It seemed very peculiar that this car would immediately set the code, even though t... Trouble codes: P2138.
2000 Subaru Outback 2.5L Power assist VIN: 4S3BH6657Y
Thank you all who responded to my request. I drilled a hole in the banjo bolt on the pressure side of the pump and screwed a pressure gauge into it and guess what, low pressure-10psi at idle- 100 at 2k+. Finally talked customer into a new Subaru pump and all i...
2003 Toyota Camry LE 3.0L MIL Lamp on VIN: 4T1BF32K73
Thanks to all who replied. Most of the responses had to do with fuel trim, Maf, PCM reset or exhaust leaks. I double checked all of those things and they were all perfect. I was unable to confirm whether or not the TSB for the 4 cyl PCM update would also ap... Trouble codes: P0420 (Bank 1 Cat efficiency), P0430 (Bank 2 Cat efficiency).
2006 Toyota Sienna LE 3.3L Unknown VIN: 5TDZA23C26
Thank you for all the replies, we end up perform zero point calibration & road test the car 2 times on freeway with many high speed sharp turn, no faults came back. Customer pick up the vehicle for a week, no complaints at all. We call this one fix, thank you ...
2002 Volkswagen Golf GL 2.0L Starting VIN: 9BWBK61J12
we called one guy he came over take him about 5 mins re flash the key and it run like new thank you for all your help best regard !!!
2011 Volkswagen Jetta SEL 2.5L oil pressure VIN: 3VWLX7AJ0B
Thanks for the input guys. I put (another) Mann filter on it and have had no more problems.
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