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Prev Professional Automotive Repair Technical Discussions for September 5, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2003 BMW 760Li 6.0L compressor VIN: WBAGN83483
Car came to me with complaint of a/c blows warm intermittently. I started by scanning the vehical for codes. I found a code 9C64 automatic recirculated air control AUC sensor, and 279D Activation engine electric fan. From here I wanted to make sure the system ...
2004 BMW 330Ci 3.0L Convertible Top VIN: WBABW53454
Thanks in advance for your time and knowleadge. Car came with a complaint that the convertible top would operate on its own (open and close) until the battery is drained. Performed a short test (with BMW ICOM) and recovered stored codes for the convertible top...
1999 Cadillac Escalade 5.7L Misfire, MIL Lamp on VIN: 1GYEK13R0X
Customer replaced the above items and then brought it to me because the problem is still there. When the truck is cold it is very obvious that there is a misfire and as it warms up it smoothes out but the tech 2 still shows misfire counter increasing on cyl 1.... Trouble codes: P0301 (Misfire Cyl 1)
2004 Chevrolet Trailblazer LS 4.2L fuel leak
customer states that fuel is leaking on the passenger side in front of the front wheel. we have replaced 2 fuel pressure regulators, has factory regulator on it now. there is evidence of fuel tracks from the air box and filter. can not think of any other cause...
2008 Chevrolet Impala LS 3.5L Misfire, Poor Fuel Economy VIN: 2G1WB58K08
this vehicle came in with no check engine light just a surge at idle. I checked codes and found a stored p0300. I checked the scan tool data and found a cylinder 4 misfire on a graph. Spark plugs had a large gap and burned up. I checked the spark and cylinder ... Trouble codes: P0300, P0304
2011 Chevrolet Camaro LT 3.6L No Start VIN: 2G1FC1ED0B
One for you Good Wrench dealer guys. Got this 2011 Camaro that was wrecked on right front, PCM damaged in wreck and replaced by used rebuild with the vin programmed in. When I went in to program it with my Tech2 and Tis To Web for the security system I got an ...
2006 Chrysler Sebring GTC 2.7L MIL Lamp on VIN: 1C3EL75R46
This car will set the p2098 every time you drive it 10 miles. Car originally came in with p0430 and p0153, replaced bank 2 cat and upstream 02. O2 is o.e and cat is carb compliant but not o.e. Car came back 1 week later with p0153 and p2098 codes. I have smoke... Trouble codes: P2098 (Post catalyst lean bank 2)
2007 Chrysler Pacifica 3.8L starter relay VIN: 2A8GM48L27
I have tested ign. switch from switch to pcm.I have never had one do this before.Crank starter and it will engage momentarily,if you keep cycling the key it will eventually crank and start.My question before condeming the ipm is the PCM sends a signal to the I...
2000 Dodge Ram 2500 5.9L engine VIN: 3B7KC26Z2Y
I replaced the original engine in this truck because the workers at the power plant apparently ran it without oil. It did drive in the shop but didn't run very well and had been sitting for at least 6 months prior to me seeing it. They wanted a "new" junkyard ...
2006 Dodge Sprinter 2500 2.7L a/c cond fan VIN: WD0PD64476
van came back with kinda cold a/c at idle and works great going down road what I found is I have no power to the a/c cond fan motor Mitchell telling me there a relay block under seat which I don't have does any one know where the fan reley is for the a/c cond ...
2007 Dodge Nitro SXT 3.7L Compressor, VIN: 1D8GT28K07
This nitro is turning my hair gray faster than my kids. The first ignition cycle of the day the compressor will not turn on, It will attempt to come on 3 times then nothing. While this is happening the power comes and goes then disappears entirely. I have mu...
2007 Dodge Ram 2500 ST 5.9L Hesitation, MIL Lamp on VIN: 3D7KR28C27
Have replaced all above items, tubes have been torqued in, truck still loses power on acceleration. Keeps setting P0148. Any of you Cummins techs out there have any other suggestions? Trouble codes: P0148 (No power under acceleration)
2007 Dodge Caravan 3.3L Transmission VIN: 1D4GP21R77
Hi tecs. Strong problem here. Vehicule suck in 2 nd gear, trans in limp mode. P0700 (trans controller) but also B01CE and P00CD (unknown codes in PCM) What means??? Rough idle like missfires, but no missfires monitored. some times oil light comes on and shut o...
2009 Dodge Ram 5500 SLT 6.7L Security VIN: 3D6WD76L29
I replaced the water pump on this truck and now the security light is flashing. I checked for trouble codes did not find any. Cant really find much info on this problem. Thanks for your help.
2000 Ford Windstar SE 3.8L Can not reflash VIN: 2FMZA5247Y
Need help with reflashing Ford Windstar. Since I had bought a short term subscription to do parameter reset, I figured I would also check for software calibration and reflash to latest. I run a laptop with Windows XP and OTC3829 VCI FMP version 86.00. I was ab...
2003 Ford Taurus SE 3.0L Heater Core VIN: 1FAFP53203
Hi guys. I have this 03 taurus that came in with a no heat complaint. . We tried flushing heater core twice. we couldnt get heater core unstopped so we replaced heater core with oe unit. we now have heat only if i rev to 2000 rpm. going down the road heat is s...
2004 Ford F-150 FX4 5.4L Hesitation, MIL Lamp on VIN: 1FTPX14544
Vehicle was towed in for lack of power complaint. Pulled codes found P0325 AND P0330 both knock sensors failure. Tested wires from PCM and supposed to have 2.5v, instead found 0v on sensor 1 and 1v on sensor 2. Has anyone ever come across both sensors failing ... Trouble codes: P0325 (Knock sensor 1 malfunction), P0330 (Knock sensor 2 malfunction)
2002 GMC Envoy SLE 4.2L ckp sensor VIN: 1GKDT13S02
Just had this truck brought to me by another tech, the engine starts as long as the ckp sensor is unplugged but will not start when connected. Tech replace 2 ckp sensors and installed new wires between the processor and ckp sensor. He claims the signal is good...
1991 Honda Civic DX 1.5L Surge VIN: 2HGED6350M
In order to cure a severe idle surge problem several technicians recommended replacing the throttle position sensor (among other steps.) Honda does not offer that part but I obtained a Standard Motor Products T42001 aftermarket sensor. Unfortunately STP did no...
2005 Honda Accord LX 2.4L transmission VIN: 1HGCM56445
this car got a p0122 code and a problem whit the shifter .the car came whit a p0122 code and customer tell me that i have to put the key in the shifter slot to be able to shift from park.i first cleaned the throttle body for carbon (ther was a lot of carbon)af...
2007 Honda Odyssey EX 3.5L power sliding door VIN: 5FNRL387X7
I appreciate your help in advance. this van driving me nuts.I got it from a dealer. Both sliding doors would not open with the remote control or the dash switch,but they would respond to interior door handle or out side door handle. you can close it with the d...
2008 Honda Civic MUGEN Si 2.0L ac not cold enough VIN: 2HGFA55518
all cooling fans are working well/no codes/antifreeze is full/pressure readings seem a bit low to me/compressor? expansion valve? any ideas? thanks in advance! randy
1991 Jaguar XJ6 Sovereign 4.0L No Start VIN: SAJHY1746M
Vehicle was towed in and will crank but not start. There is ignition spark available at the spark plugs and will start and run briefly if it is cranked long enough but has no power and then dies. When it fails to start, the engine will kick back slightly when ...
2005 Kia Sportage LX 2.7L rear differential VIN: KNDJE72305
This customer has been complaining off and on about a grinding noise. I checked the vehicle out and did a rear brake job but found no signs of the grinding. I drove the vehicle for a short distance after the brake job and found no noise. She brings the vehicle...
2001 Mercedes-Benz SLK230 Kompressor 2.3L Convertable Top VIN: WDBKK49F41
Hello Fellow MB Techs, This is a strange problem on this little car. This is an SLK which means that the convertible top is stored in the trunk when one puts it down. One day the customer put the top down and it would not go back up. Then, when they brought t...
2009 Mercedes-Benz E350 4Matic 3.5L smart start VIN: WDBUF87X59
Hello Mercedes techs, My own vehicle giving me some issues. I have owned this 350 4 for 3 years with no issues. The past two days the smart start feature has been intermittent. The smart lock and unlock work all the time as does the remote lock and unlock. The...
2004 Nissan Maxima SL 3.5L No Start VIN: 1N4BA41E74
this vehicle came in with a no start condition, and history code for cam bank 2 p0345 so we decided to replace both sensors. Still had a long crank no start, but the car would hiccup like she wants to start once in a while, while cranking (like the timing is o...
2006 Nissan Murano SL 3.5L cruise surge VIN: JN8AZ08W46
Customer complaint of surging at cruise speeds. Test drove and verified that at 65-70mph engine speed surges(slowly) from ~1900rpm up to ~2800rpm and then back down, but DOES NOT affect vehicle speed. Only noticed surging at this speed, it will do it with and ...
2006 Nissan Murano SL 3.5L Hesitation, Surge VIN: JN8AZ08W46
Customer complaint of surging at cruise speeds. Test drove and verified that at 65-70mph engine speed surges(slowly) from ~1900rpm up to ~2800rpm and then back down, but DOES NOT affect vehicle speed. Only noticed surging at this speed, it will do it with and ... Trouble codes: P0725 (engine speed signal not received by TCM)
2005 Saturn Ion-2 2.2L MIL Lamp on, reduced power VIN: 1G8AJ52FX5
Good morning. I have this Saturn that will intermittently go into limp mode and set above code. I replaced the APP sensor with still the same problem. When watching scan data on scanner with koeo the tps will jump from 18 to 35 percent without pressing the gas... Trouble codes: P2138
2006 Smart Fortwo Passion .8L No power to glow plugs
Vehicle was towed in from an other shop no start condition and gas was put in tank instead of diesel. after checking the starter had to be replaced after the starter was replaced we drain the fuel tank install a new fuel filter we bled the system and injectors...
1997 Subaru Legacy Outback 2.5L Misfire, MIL Lamp on VIN: 4S3BG1859V
Replaced plugs & wires.It can idle for twenty minutes without setting a code. I've driven it as little as one mile and as far as ten miles before it sets the #1 misfire code. Trouble codes: P0301
2005 Subaru Outback i 2.5L Awd VIN: 4S4BP61C15
hi everyone, iam working on a 2005 subaru outback nonturbo 2.5. with an automatic trans...i dont have any subaru drivline experience. i have checked basics like fluid connectins and codes and there were none stored. the problem is that the AWD is locked all ...
2009 Toyota Camry XLE 2.4L No Start VIN: 4T1BE46K99
Running currently. Owner said it would start, run 2 seconds then die.Tried about 15 times, this is the first and only time it has happened. Key's used are the same ones that they have always had. Did not notice a security light but was unsure. This was a forme... Trouble codes: B2799 (Engine Immobilizer system malfunction)
2004 Volkswagen Beetle GLS 2.0L A/C Clutch VIN: 3VWCM31Y14
Sorry about missing any details about the diagnosis if I do, this is my first time asking for help. Car came in with a blown motor, we replaced motor and everything except compressor clutch works. I have battery voltage at the red/white wire at a/c clutch with...
2009 Volkswagen Rabbit S 2.5L Engine VIN: WVWAB71K49
Checked all work. Whine/hum can be felt in oil pan but not in adjacent AC compressor. Removed drive belt and noise still there. Engine has a timing chain and it looks like a chain drive balance shaft. Noise not felt in transmission. Depressing clutch doesn't c...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 BMW 740iL 4.4L Starter VIN: WBAGH8339X
I shall start this explanation of findings with this car came from a used car dealer. So you know what fun this was. We found fuses 111 & 114 & 17 all blown, fried multiple wiring at firewall under glove box area, fuel pump relay socket ground and power wires ...
2002 BMW 325i 2.5L No Start VIN: WBAET37482
Thank you all for the excellent input on this BMW. The fix ended up being the regulator built into the fuel filter. System pressure now holds for long periods of time. I would like to have received input on the 'True Running Value' PID's from a Euro savvy tech... Trouble codes: 08 (MAF Signal), A8 (Thermostat Stuck Open).
1999 Chevrolet C3500 6.5L Abs & Trans VIN: 1GBJC34F6X
Well I believe it is fixed replaced the EBCM with a junkyard one last Friday Been driving it every day since and no codes , ABS seems to work great. Thank you all for your information I have printed all and will keep it on file Again thank you all Patri...
2004 Chrysler Concorde LX 2.7L Poor Idle Quality, Hesitation VIN: 2C3HD46R44
After some more test I replaced the throttleBody and this fixed the problem. I did more somke test Compression , running and regular. Found the saft was loose and that was the problem Trouble codes: 301 (1 cylinder Misfire 1year ago), 304 (Random cylinder misfire current).
2008 Chrysler PT Cruiser LX 2.4L Eng Temp VIN: 3A8FY48B88
Thanks to all that replied, those of you that said head gasket was right. When using the chemical head gasket test kit, it did not show up. I decided to use the 5 gas analizer and after an extended test it showed as much as 175ppm hc%. We replaced the head gas...
2001 Ford F-550 Super Duty Lariat 7.3L steering VIN: 1FDAF56F01
Replaced new pump with a Motorcraft rebuilt. Problem solved.
2004 Ford F-150 FX4 5.4L engine VIN: 1FTPW14514
Thanks to Noah [...] who hit it right on the head. Was bad integrated wheel ends. They are vacuum controlled actuator on the drive shaft ends at the hub that lock the 4x4 with vacuum pressure. Seems they get trash or mud in them and go bad. Sounds like an e...
2005 Isuzu NPR 5.2L fuel VIN: JALB4B1655
after looking at the data on my scan tool i noticed that this truck does not always have cam signal but always has crank, unplugging the crank sensor gives cam signal, unplugging the cam sensor with the crank installed also gives cam signal. after looking at a...
2001 Jaguar Vanden Plas 4.0L Ignition VIN: SAJDA24C11
Thanks for all the help. Gerald and Joe helped me a lot. The final outcome was a defective engine ECU. Replaced with a known good one, reprogrammed, all clear. F or reference in future, part number was [...] located right rear of engine compartment.
2004 Kia Sedona EX 3.5L Clutch Coil VIN: KNDUP13184
We drove this Kia for a few days and all is well. Smell has gone away and the AC is still working fine. We have sold many Kia compressors and coils with out a problem until this one. Some said to use only aftermarket parts on these but I think I will still go ...
1998 Mazda MPV ES 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JM3LV5224W
We are confident that this Mazda has an exhaust valve problem. Customer declined further diagnoses or repairs. A leak down test would have been the next thing to do. Thank you all. Trouble codes: P0300.
2003 Mercedes-Benz E320 3.2L auxiliary battery VIN: WDBUF65J33
Well I believe this vehicle is fixed. Thanks you guys for all your great responses. Especially the info Dallas provided and the link to the system description provided by Byron that was very helpful. Special thanks goes out to Marvin who by email & phone also ...
2004 Nissan Pathfinder SE 3.5L variable intake runners VIN: JN8DR09Y44
We ended up replacing the engine in this rig. Nobody in the shop was convinced the noise was 'only' the screws- coupled with the fact the customer said the motor used oil from day one, and after his long trip from WA to CA he said it was two quarts low. That w...
2002 Pontiac Grand Am SE 3.4L No Start VIN: 1G2NF52E12
thanks again for all the insight !! trid lots of things from key cylinder to ignition switch. even replaced ignition module with known good used one. finally started ohming wiring from ignition module to computer to instrument cluster to body control module. f...
2007 Saturn Ion-2 2.2L Poor Idle Quality, high idle VIN: 1G8AZ55F77
reflashed pcm and relearned throttle.Had to drive vehicle several times,but idle finally relearned. Trouble codes: P0507 (idle conrol system rpm too high symptom 00).
2010 Toyota Prius 1.8L No Start VIN: JTDKN3DU2A
Thanks to all that replied. Sure enough it was the PO171 lean code that was the best hint. Carolyn from CA reminded me to look again for vac hoses off. I saw that in the knowledge base before I posted but missed the one directly under the air filter box. You r... Trouble codes: P3190 (poor engine power), P0A0D, P0A0F.
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