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Prev Professional Automotive Repair Technical Discussions for May 13, 2015
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Open Help Requests for All Makes and Models
Help Request Answers
2004 Audi A8 Quattro L 4.2L No Start VIN: WAUML44E64
evening all, Not sure how this system works. the car came in with a no start. A quick check found a no fuel problem. The tech hooked the fuel gauge up and the car did start this time, but as it was running the pressure started at around 50 lbs. then started to...
2007 BMW 530xi 3.0L a/c VIN: WBANF73587
Hey guys, need some help here. I have a 2007 BMW 530xi that I can't seem to get the A/C to work properly on. Customer originally came in because the air was blowing warm when the A/C switch was on. We confirmed this and first checked for a proper charge. When...
2002 Buick Century Custom 3.1L LF wheel speed sensor VIN: 2G4WS52J92
This is a problem child car that keeps on setting a c1225 LF wheel speed excessive variation. The Lf wheel speed data pid does not drop out. Instead it spikes well above 30 mph when only going five, and it seems to happen primarily turning left at slow speeds....
2004 Cadillac CTS 3.6L No Start VIN: 1G6DM57734
I have this cts that's dealing me fits.I've traced wiring til I'm blue in the face.The only thing I can come up with is the BCM.Does anybody in IATN Land know what the voltage is supposed to be on the high speed data line?Any help would be greatly appreciated.
2001 Chevrolet Silverado 1500 5.3L rear brakes VIN: 2GCEK19T41
Weird! I often replaced brake lines on these vehicles, and I never had trouble to purge the system. Some times we-have a low pedal, due to trapped air, but this time, it is strange. i have a very firm pedal and the front brakes work very well. But no pressure ...
2004 Chevrolet Epica LS 2.5L Poor Idle Quality, Stall VIN: KL1VB52L44
Really need some help here. I started looking into this Epica for high idle issues and occasional stalling. I drove the car and noticed that as soon as it was put in gear the idle would jump to about 1300-1400 RPM. It also bumps the Rpms on decel at the trans ... Trouble codes: P0121 (Throttle position A circuit range/performance), P1512 (Idle Speed Control ISC System)
2006 Chevrolet Impala LT 3.5L Vci # VIN: 2G1WT58K66
I'm replacing the BCM it's a different module#. I can't get the BCM to flash without a VCI number due to the replacement module part number being different from the part number of the module removed from the vehicle. the VIN# is [...] I using a sta...
2009 Chevrolet Silverado 1500 LTZ 5.3L oil prerssure VIN: 3GCEC33099
I really need some help. This trucks oil pressure is good (40 psi at idle) when cold and as it warms up. It even stays around 20 (also at idle) for a while then suddenly it seems to hit a temp and just start slowing dropping until it get to near zero. I have r...
1999 Chrysler Concorde LX 2.7L MIL Lamp on VIN: 2C3HD46R5X
I have been battling this code for away. It will set this code sometimes within 25 miles and sometimes 500 miles. But lately it seems to set faster. New walker cat. and temp. sensor. I will try to make this as short as possible. The freeze frame when the code ... Trouble codes: P0432 (Cat efficiency below theshold Bank 1)
2003 Dodge Caravan SE 2.4L No Start, Poor spark VIN: 1D4GP25B63
Very intermittent will start and run fine for weeks then no start with good fuel pump pressure and weak sporadic spark, acts like it wants to start "sputter,sputter,sputter" if you floor it for clear flood it cranks without "sputter" then back off pedal and sp...
2007 Dodge Sprinter 2500 3.0L Misfire VIN: WD0PE74557
Now a year later this vehicle is back with same code, preform all test in diag tree. The results leed me to replacing ecm. I would like some more conformation befor I do this. I have the wi tech scan tool and this time I get a vin code is pooly written message... Trouble codes: 2144 (cylinder 4 injector signal circuit)
2010 Dodge Charger R/T 5.7L No Start VIN: 2B3CA4CT4A
We took this car on after a police garage failed to find the problem. It is a police cruiser and has lots of accessory wiring. When we got the car it was an intermittent no start. you could turn the key on and nothing at all would happen. lo lights on the das...
2013 Dodge Avenger SXT 2.4L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 1C3CDZCB3D
well im in need of some advice guys,2013 Dodge avenger with 2.4 liter automatic that has a re-occuring p0171 and a intermitent stall and rough idle issue. Maf sensor and throttle unit replaced with no changes,o2 sensor appears to have a decent wave form and vo... Trouble codes: P0171
1986 Ford F-150 XL 5.0L No Start, Stall VIN: 1FTCF15N9G
Customer says that the engine will stall while driving or when stopped. When it does this, it will crank but wont start up unless you let it sit for awhile. Also, when accelerating normally, right into the initial acceleration, then engine will buck hard once,... Trouble codes: 14 (Pip sensor circuit malfunction)
1996 Ford E-350 Econoline 7.3L No Start VIN: 1FDKE30F8T
Complaint was hard start & won't go over 35 mph. Truck came in & would not start. It had melted conn. on l/s vc gaskets & r/s is good. I have good power & ground to IDM & don't have 115V dc coming out of IDM. EBP voltage is 1.27v koeo, IPR ramps up to 49% on c... Trouble codes: P1668, P0470
1996 Ford Ranger XLT 2.3L No power VIN: 1FTCR14A8T
I have cleaned the MAF sensor & even tried an aftermarket one but since did not make any difference I removed it. Also drive truck with out MAF sensor. I removed all the wires from alternator and drive it to found no change. Found small vacuum leaks and a big ...
2004 Ford F-150 Lariat 5.4L Misfire VIN: 1FTPX12534
ok guys need help on this one. prior to replacing all this parts truck was making noise only in the mornings when first started,good power no misfires drove it to the shop to replaced phasers. when looking trough in after taking off valve covers I saw a broken...
2006 Ford Taurus SEL 3.0L Poor Idle Quality, Surge VIN: 1FAFP56U76
thanks for any help in advance. this taurus has a surge at idle. maby 100 rpm. no vac leaks has pending code for b2s2 stuck lean. not stuck lean durnig its duration with me. fuel trims all close to zero. engine load in nuteral hot is 30% seems high.i noticed t...
2008 Ford F-350 Super Duty XL 6.4L coolant leak VIN: 1FDWX37R38
This is more of a question than a running issue. The coolant tube on the horizontal egr cooler assy. that goes to the engine front cover has a bracket on it that bolts to the side of the cooler. Any suggestions on getting that bolt out. Its above LS eng.mount....
2010 Ford F-150 King Ranch 5.4L pass blend door VIN: 1FTFW1CV2A
dealer diagnosed as both blend door motors bad. Pass side failed prior to the drivers side when drivers side quit he went to dealer and they said both bad , so i replaced both and pulled fuse 15 for 5 mins and moved on to do recalibration . I have air d side h...
2010 Ford F-250 Super Duty Harley-Davidson Edition 6.4L 4x4 VIN: 1FTSW2BR7A
The 4x4 doesn't engage on this truck. I've checked all fuses. It doesn't display any indication of trying to engage. The scanner pids show that the switch is working and I checked the resistance values from the selector switch. The electronic shift on the fly ...
2011 Ford F-350 Super Duty King Ranch 6.2L Cuts out VIN: 1FT8W3C60B
This truck came in with lack of power on acceleration. It is a classic case of clogged cats. Check back pressure and get 6 psi. Unbolt the exhaust and still have the same issue. Removed and MAF, cleaned, then replaced with known good one. No change. Checked Fu... Trouble codes: P0316
2003 Jeep Grand Cherokee Laredo 4.0L No Start VIN: 1J4GX48S93
hello, I have a skim problem with this jeep. customer lost keys so he had mobile lock smith cut 2 gray keys and try to program to truck but locksmith could not get it to program. customer towed to dealer and they also could not get it to work. they said skim c...
2010 Lexus ES350 3.5L head gasket VIN: JTHBK1EG2A
Vehicle drove in overheating with a #2 engine miss. No fluid in cooling system. Reload cooling system with water and run engine to make sure cooling fans working. Fans cycle normally, but engine started to misfire worse after warm up. Pulled #2 plug and found ...
2007 Pontiac Torrent 3.4L Converter VIN: 2CKDL73F77
Please help, this vehicle is setting fault code p0966 tcc pressure control solenoid control circuit low voltage. At times it shifts ok, when it acts up there is a 1-2 slip and torque converter will lock and unlock when you are driving. At times it will go into...
2004 Toyota Sequoia Limited 4.7L compressor VIN: 5TDZT38A84
Customer says nothing but warm air when waiting to pick up kids from school. I let it idle with a/c running for about 15 min. and the compressor did quit cycling and did not come back on. When it quit so did the power to the rd/wt wire at the comp.. After wait...
2000 Volkswagen Cabrio GLS 2.0L Shifting VIN: 3VWDC21V3Y
I have three cabrios 2000- 2002 with this same problem. I am missing something. Yes new throttle body and manytimes cleaning and throttle body adaption. After adaption normal for a while. Check sweep throttle position sensor no clitches. Cleaned grounds and al...
2005 Volkswagen Passat GLS 2.0L Tcm VIN: WVWAE63B05
After reinstalling trans try to reschedule or program TCM before road test using Ross Tech, Cannot find and " Basic" settings for Diesel engine, PLEASE help., If you try to drive vehicle there is a bad "chatter" when trying to shift. Chatters when going into "...
2009 Volkswagen Tiguan SE 2.0L MIL Lamp on VIN: WVGAV75N39
We had this car in a month ago and the PRND32 readout on the panel was showing all items lit up. As in the past we replaced the range position sensor for the trans. We also replaced the mass air flow sensor for the 00257 code. Both came back with the readout s... Trouble codes: 01314 (Engine control module), 00257 (Mass air flow sensor)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1991 BMW 318i 1.8L Hesitation, Misfire VIN: WBAAJ9310M
I checked all the wiring at the computer connector, but found not thing I could pin point. I finally gave up & called the customer to pick up the vehicle & take to someone more appropriate (BMW specialist). I was willing to take a loss on this one, but the cus... Trouble codes: 16 (Camshaft sensor).
2009 BMW 528i 3.0L No Start VIN: WBANU53539
It turns out the new fuel pump was defective and quit working shortly after it was installed, which is why we verified proper fuel pressure after installing, but didnt think it would die shortly after. Once the pump was exchanged for a working unit, vehicle st...
2003 Chevrolet Silverado 1500 5.3L Misfire VIN: 2GCEK19T03
The customer never brought the truck back in so they could check it out further. If I get any more information on this repair I will update this information. Trouble codes: P0101 (MAF Sensor), P0171 (Bank 1 Lean), P0174 (Bank 2 Lean), P0443 (EVAP Purge Soleniod), P0300 (Misfire), P2108 (TAC Module Fault).
2005 Chevrolet Classic 2.2L Odometer/Radio VIN: 1G1ND52F55
HEY everyone in the crazy world of auto repair, i found my repair. first and foremost thank you the "e"mails with the great idea`s and second, i found when programing the late model GM cars,the cluster should be unplugged and then perform programing as needed....
2007 Chevrolet Impala LTZ 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2G1WU58R07
2003 Ford F-550 Super Duty XL 6.0L Parking Lights VIN: 1FDAW56P13
This was a work truck that the customer said he needed for a job and that he would bring it back in two days. Haven't seen him since and it's been two weeks now. But I did find a burnt light switch which I replaced, no difference. Also found two plugs which is...
2004 Ford F-150 XLT 4.6L Misfire VIN: 1FTPX02534
thanks for all the replies. we agree with most replies that we had cam phazer/timing chain problems, but customer declined repair.
2008 Ford Crown Victoria Police Interceptor 4.6L Extended Crank VIN: 2FAHP71V68
The fix was fuse #3- 10A in battery junction box. That fuse supplies (+) to the KAM(Keep Alive Memory), and the EVAP vent control solenoid. Without the KAM after sitting a little while, the module would lose it's strategy, and would have to relearn it's stra...
2002 GMC W4500 Forward W4S042 5.7L No Start VIN: 4KDC4B1R52
IATN is AWESOME. Thanks for the help, Found broken wires in engine harnees right by bell housing!! Thank you ALL !!
2004 Honda Accord EX 3.0L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 1HGCM66534
Thank you all for the help, the problem was the PCM. We replaced it with a new facorty unit. All of our data is back and accurate. Trouble codes: P2122, P2127, P0107, P0117, P0112, P2228.
2006 Jeep Grand Cherokee Laredo 3.7L Poor Idle Quality VIN: 1J4GR48K46
A big thank you to all who replied! This truck was one of those gems that stays with you for a while and im glad to say it is now happily going down the road. The way we diagnosed this was to monitor fuel trims on purge, they were backing way down so we discon...
1966 Mercedes-Benz 230SL 2.3L Oil leak VIN: 1130421001
Thanks again guys for all the help. The breather pipe atop the valve cover seems to have fixed the oil leak, i was able to clear most of the rust & carbon out of it as a temporary fix until we can track a new pipe down. I am also fairly certain that there is...
1999 Mercedes-Benz C230 Kompressor 2.3L abs light, BAS ASR light VIN: WDBHA24G6X
sorry but i have not repaired this one. Got a friend with an other scanner with 38 pin connector. light on, but no codes!!! just an erratic data at right rear sensor. Talked with customer and he said wo!!! stop. it's over. Light gonna stay on. Thank you for ...
2011 Mini Cooper Countryman S 1.6L Hesitation
Thanks for the input guys. Yes it is correct that the low pressure pump supplies 5 bar of pressure. We installed a new pump and retested pressure. Car is running fine. Trouble codes: P302C.
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