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Prev Professional Automotive Repair Technical Discussions for July 30, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
1995 Acura Integra LS 1.8L Discharge air VIN: JH4DC4454S
I am not a parts changer, but it seems it has gotten to that point! It started out, my daughter said her A/C was blowing warm. I hooked up gauges and had a really high hi side reading. Looked down, and condenser fan was not turning. Replaced it, pressure went ...
2005 Audi A8 Quattro L 4.2L cooling system VIN: WAUML44E65
This came to us with a cracked radator, We installed the audi updated radiator and hoses , ( per bulletin ) We removed the air from the cooling system with a air lift tool. Test drove and this will only overheat at highway speeds, We replaced the engine coolan...
2000 BMW 323i 2.5L Cooling Systems VIN: WBAAR3345Y
hello group,2000 bmw 323i oil in cooling system.we replaced cylinder head and gasket on this vehicle 18000 miles ago,during this time vehicle been at dealer to ck any oil resedue in cooling system by customer request and they have run cooling system flush and ...
2005 BMW 325Ci 2.5L emmissions VIN: WBABW33405
car has code p0070 ambient air temp sensor code which i can not find in the service manuels. found a broken ambient sensor so replaced and i have the same code coming up. cant find any info for this code
2007 BMW 328i 3.0L junction box VIN: WBAVA33577
Hello all, hope someone can shed some light on my situation for me. Vehical came in with a complaint of loosing all electrical power at times. found B+ wire melted at back of junction box behind glove box. Replaced B+ terminal and junction box. I marked all pl...
2008 BMW 328i 3.0L No Start, Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: WBAVC53568
This car is back for the third time for same problem, started with fault code 2A41/2A43 both for Valvetronic thermal overload protection. and 2A37/2A47 Valvetronic eccentric shaft sensor plausibility. Replaced the servomotor, did flash update to DME and perfor... Trouble codes: 2A38, 2A37, 2A47, 2D59
2010 Buick LaCrosse CXL 3.0L Sun Shade VIN: 1G4GC5EGXA
Sunroof shade does not close all the way. It needs to travel another inch to be completely closed. We have tried the initialization/teach process for both the sunroof and the sunshade and it still doesn't close. Sunroof works fine. We also removed the sunroof ...
2008 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DP57V98
this car camer in with the p0100 code. cheched the connector have power, ground, 5 volt reference. all test all data tells you to do except for the test with the factory scan tool because i dont have one. everytyhing was pointing to the maf sensor. replaced th... Trouble codes: P0100
2002 Chevrolet Corvette 5.7L oil pan/ rear main seal VIN: 1G1YY32GX2
Need some help from the corvette mechanics, I have a 2002 that is leaking oil bad from the rear of the engine, can't tell if it is rear main seal or oil pan. when the engine is running the leak starts above the rear cover that hold the rear seal, and runs down...
2002 Chevrolet Avalanche 1500 5.3L Lock Cylinder VIN: 3GNEK13TX2
Vehicle came in for not being able to remove key from ignition lock cylinder. The key was on the start position and you can start the vehicle up with now problem. The problem was that you cannot turn off the vehicle by releasing the ignition lock cylinder back...
2002 Chevrolet Corvette 5.7L cooling system
this motor is in a sand rail been running great for three months. had a over heat problem because of cooling fan connection. fixed that now car uses antifreeze. ran a block check two times passed both times. run pressure check on cooling system losess 10 psi i...
2005 Chevrolet Trailblazer LS 4.2L Spark knock at idle VIN: 1GNES16S15
when hot(210`)spark knock can be heard at idle in gear only,If we add small spray of carb cleaner niose stops instantly but returns when you stop spraing carb cleaner.We have cleaned combustion chamber(motor vac)also pressure flushed injectors,and added 5 gal....
2006 Chevrolet Trailblazer SS 6.0L No Start, Stall VIN: 1GNES13H96
Hi , all, gm. Tech. This suv came in on the hook with no start problem. We knew we have problem with m.a.f sensor before , fuel pressure was zero. So we installed new fuel pump,and mas air flow sensor , start it, run fine test drive it and delivered to custome... Trouble codes: P1516 (Throttle actuator control), P1682 (Ignition 1 switch circuit 2), P2101 (Throttle actuator position performance), P0101 (Mass air flow sensor)
2010 Chevrolet Silverado 2500 HD LT 6.6L MIL Lamp on VIN: 1GC4KVB67A
replaced fuel filter 200 miles ago. removed fuel tank last week it was clean. fuel filter has been replaced several times in the last 5000 miles p0087 has been on several times freev frame showed last time it was at 60 mph & about 98% power pulling a trailer u... Trouble codes: P0087
2005 Chrysler PT Cruiser Touring 2.4L rear hatch and dome light VIN: 3C4FY58B65
The rear hatch unlatches and dome lights come on when you step on the brakes (activate the brake lights). It occurs to me that if someone has seen this it may save me a bunch of time opening harnesses. Thanks for looking. Phil
2000 Dodge Dakota 3.9L Excessive Emissions VIN: 1B7GL22XXY
Greetings to all the brilliant minds who are ready and willing to give an answer to my dilemma. This truck came to me after someone had put a cat on it. I think I have the answer but before I give my poor customer a heart attack I would like to run this one by...
2003 Dodge Sprinter 3500 2.7L Compressor VIN: WD2YD54213
Please read repair history. Does anyone know anything about these systems? Am I fighting a losing battle in this environment? Maybe a second compressor would be the fix.
2000 Ford Windstar LX 3.8L Instrument Cluster VIN: 2FMZA5149Y
My question here today is, how do you program the anti-theft in this car with ONLY 1 KEY. There's a guy that come to my shop and can program the cluster with only only 1 key. The code that appears is "B1213 Less than 2 (or 3 if equipped w/Valet key) keys". Aft...
2003 Ford F-350 Super Duty XLT 6.0L cluster VIN: 1FTWW33P53
CODES p0460 fuel level sensor circuit fault p0603 internal control module kam error Memory codes u1059 scp data fault trans u1262 scp data fault for j1850 bus u1027 scp data fault for engine rpm key on engine off codes B1463 seat belt circuit open B2...
2003 Ford F-150 XL 4.2L Engine VIN: 1FTRX17223
I am completely stumped, any help would be greatly appreciated. I have replace motor with a used low mileage 4.2. Motor runs fine no missfires, but vibrates like a missfire from 800 rpm to 1900, then from 2200 on up. I have cleaned egr system when I replaced l...
2003 Ford Windstar SEL 3.8L Rear Blower Motor VIN: 2FMZA53403
Running out of options, Blower Motor runs constantly at same speed with key in or out. Installed new blower resistor but no go. Tested power and ground to relay, good and fuses to relay and toaux rear relay module. I feel like there is power bleeding over some...
2005 Ford Explorer XLT 4.6L No Start, long crank time VIN: 1FMDU73WX5
This vehicle is hard to start/ long crank times often. It sounds like an engine with the distributor out of time when it doesn't start- erratic boop-boop noise at tail pipe. With cam sensor unplugged it fires right up and runs perfectly, great power, nice,smoo...
2008 Ford F-350 Super Duty XL 6.4L push rod VIN: 1FTWW31R88
Good morning! We have a popping noise from the engine of this 6.4 Superduty. The #4 intake pushrod has bent twice in the last 30 miles! Visual inspections don't provide us with a direction. Has anyone had this problem, and found a cause? Thank you, any insight...
1995 GMC C3500 Sierra SL 7.4L 2-3 shift, VIN: 1GDKC34N7S
This truck will only act up after being driven on the highway for a few miles. It will shift normally around town, and normally getting on to the highway. After coming to a stop, and then taking off again, it will shift from first to second, then will not come...
1999 GMC Sierra 2500 SL 6.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTGK29U8X
Customer complaint low power transmission wont shift.Test drive low power low fuel pressure. Pressure at 45 psi. Replaced fuel pump pressure at 60 psi. Checked alternator voltage 12.5 volts low. Check at ECM the same. Check wiring ok. No shorts or grounds. Cod... Trouble codes: P0563 (PCM overvoltage)
2002 GMC Envoy SLE 4.2L Starting VIN: 1GKDT13S02
Came in with intermitent no-crank. Of course we could never duplicate at 1st. We do have a 1 year old Am Interlock breathalyzer system attached. We swapped out the whole unit & had her try it. Acted up next day. We went to her work & verified the starter relay...
1996 Honda Odyssey EX 2.2L Compressor VIN: JHMRA1875T
When we did our diagnosis, all relays are working, the ECM is grounding properly. Diagnosis leads to the thermostat. When you ground the Blue/Red wire @ the thermostat, no condenser fans or compressor engagement. Tells us that the thermostat is bad. Install a ...
1998 Honda Civic DX 1.6L Hesitation
hello i have this Honda here. it will bog sometimes. when driving the car. when giving it gas it will bog down and the rpm and vehicle speed will not increase. let go of the gas pedal and press again and its fine. no codes. the fuel filter was replaced by anot...
2004 Honda Odyssey EX 3.5L No ecm communication VIN: 5FNRL18904
We got the car and our scanner would not communicate either we can talk to the abs and air bag computers. Checked all fuses and found good, performed AllData flow chart. We have battery voltage on DLC terminal 16, Battery voltage between terminals 4 and 16, Ba...
2008 Honda Civic Hybrid 1.3L Misfire VIN: JHMFA36298
got this 08 civic hybrid that has misfire on #1 cylinder there is no injector pulse on that cylinder all the other cylinders are doing fine,checking the wire from #1 injector to pcm is good i seem to have everything there,leaning towards a new pcm thinking inj...
2005 Hyundai Sonata GLS 2.7L Starting VIN: KMHWF35H35
Customer experiencing crank no start. We have not experienced this condition. Scan for faults, no codes stored. Checked reported fixes of other members, battery cables, terminals, fuse box. Battery is new replaced by customer, cables are corrosion free. Fuse b...
1999 Infiniti QX4 3.3L Electronic VIN: JNRAR07Y6X
I need some help from Infiniti Techs. I have this QX4 with a no a/c compressor start. We check relay, pressure switch and there is no problem. We make the manual diagnostic at electronic switch and we noticed that in some test the a/c compressor start. We rech...
1998 Jaguar XJ8 4.0L No Start
Hello all, This Jaguar was towed in from another shop. Has no spark and no injector pulse. Has warning on dash "Engine Failsafe". Unfortunately my scan tool is out for repair, so I am left with just OBD II generic. I scoped the crank sensor and it is good. I h...
1999 Jaguar XK8 4.0L MIL Lamp on VIN: SAJGX2041X
Thanks in advance for any help and info. SES light is on p0171, p0174 lean codes. Long term 12-15% at idle, 19.62% maxed out at cruise and loaded both banks. Smoked intake system fixed every visable leak and there were several, no change. Cleaned MAF no change... Trouble codes: P0171 (Lean system bank 1), P0174 (Lean system bank 2)
2000 Jeep Wrangler Sport 4.0L Poor Idle Quality, Stall VIN: 1J4FA49S1Y
customer complaints of rough idle when engine is cold. checked for codes and vacuum leaks, none found. car did run rough when cold and then stalled, when engine stalled cel flashed while engine stalled, engine starts right back up, no issues with restarting, b...
2004 Lexus ES330 3.3L Transaxle seals VIN: JTHBA30G94
Hello All, Need help with a transaxle seal leak. Replaced the seal twice, last time with OEM part. Works for a couple of days, then starts to leak.
2001 Mazda Protege ES 2.0L Cooling Systems VIN: JM1BJ22541
costmer came in saying the car blowes cooolent out of the over flow bottle after 7 miles of driving. other shops have replaced the water pump timming belt and flushed the cooling sysetem. I repalaced the cap and test the system. and blocked it. I belive this i...
1994 Mercedes-Benz S320 SWB 3.2L Unknown VIN: WDBGA32E7R
auto cam in for belt making noise. replaced belt and tensior noise went away but alc compressor won't engage. if you put on defrost it works. have no power to it. when i hot wire it its gets real cold.
1997 Mercedes-Benz E320 3.2L Unknown VIN: WDBJF55F2V
A/C blows cool on right side and warm from left side. I have read several posts regarding this concern. I am certain it has the proper amount of charge in the system. I have also pinched off the diverter valve hoses with no change. What I see that I question i...
2004 Mercury Sable LS Premium 3.0L charge indicator VIN: 1MEFM55S74
vehicle came in initially with a check engine light and a check charging system light. I then pulled codes and got a PO622 - generator 'f' field control problem. Voltage and the battery while running was 12 volts. (Battery had just been on a charger) I then ju...
2000 Nissan Sentra SE 2.0L Poor Idle Quality, MIL Lamp on VIN: 3N1BB51A1Y
hello and thanks in advance. This sentra came in with a recurring P0171, set on every test drive. Bank 1 o2 was stuck 800mv (rich, which I don't get), but still stuck so we replaced it per the TSB EC02-002. Code never set over next 100mi, so we didn't pay muc... Trouble codes: P0171 (lean bank 1)
2006 Scion tC 2.4L power door locks VIN: JTKDE17716
hi folks, i have a 2006 scion tc with inop. power locks. and i need help. i have swapped door harness, checked all fuses, swapped master switch, replaced integration relay. alldata wiring diagram is not very helpful. checked grounds per diagram. both door lock...
2009 Suzuki SX4 2.0L MIL Lamp on VIN: JS2YA41129
Thanks in advance for any help. Mil on with reoccurring code p0456. When first came in diagnosed problem to a vent valve. Vehicle returned 500 kms later same code. Re-diagnose, we found that the purge solenoid holds vacuum until energized and we can control pu... Trouble codes: P0456
2000 Toyota Corolla VE 1.8L Hesitation, Misfire, MIL Lamp on VIN: 2T1BR12E9Y
This car has an intermittent serious hesitation problem. will run for 1/2 hour fine and then go to take off ( esp. making a left turn) and it will not go for 10-15 seconds ( doesn't die altogether but won't rev over 1200 rpm. has had intermittent P0171 code on... Trouble codes: P0171, P0300
2000 Volkswagen Beetle GLS 2.0L Cooling Systems VIN: 3VWCA21CXY
I bought this car and the AC and fans were out. I changed the Fan Control Module and it fixed the AC/Fan problem. I drove it over 250 miles without any issues or overheating. Recently, on a local drive, the red light began flashing, and I pulled over and shut...
2002 Volkswagen Jetta GLS 1.8L speedometer VIN: 3VWSE69M12
Car came in with speedometer not working. Everything printed says it has a impulse generator on transmission. The place for the transmitter is there but no transmitter or wiring to be found. Any thoughts. I assume the wiring comes from the enigne loom. Brad G...
2002 Volkswagen Beetle GLS 2.0L a/c compressor VIN: 3VWCB21C62
compressor locked up and no longer working( faulty part).I replaced the compressor and now has no power to compressor and no power output from a/c module. have installed a new fan module/ac module. replaced the high pressure switch and the fan switch which is ...
2004 Volvo S60 2.5T 2.5L Surge, Cuts out, MIL Lamp on VIN: YV1RS59V94
Vehicle towed in with description of no acceleration pedal response and shut off completely while driving freeway. Pull those 2 code 982A and 984A ECM internal fault, then starts fine, erased codes and testdrove 3 days, no symptom no issue, today while testdri... Trouble codes: ECM98, ECM98

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1992 BMW 325i 2.5L No Start, Poor Idle Quality, Cuts out VIN: WBABB1316N
Thanks to all those that replied. This vehicle ultimately had 2 problems which were causing me grief. When I pulled the harmonic balancer to check and make sure it hadn't shifted I noticed the air gap to the crankshaft sensor was too large. BMW spec is 1mm. ...
2007 BMW 525i 3.0L MIL Lamp on VIN: WBANE53537
Thanks for the info.Thanks for the input. What we determined today was the Trans control module was sending an improper signal to the shift interlock. Only 45k on it dealer is going to cover it under warranty. Thanks for the input.
1997 Buick Skylark Custom 3.1L Anti Theft, Headlights, Warning Lights, Cluster VIN: 1G4NJ52M2V
Thank you techs for your replies! It turns out, the instrument cluster was the only fault here. For some reason, I can't explain, the resistor I had installed was causing a problem. I have been able to do this bypass before and all works well but not this time...
2000 Chevrolet Astro 4.3L Cuts out, Stall, Misfire VIN: 1GNDM19W8Y
replaced maf sensor. found that the maf sensor was shorting the reference voltage to the map sensor throwing the map code Trouble codes: P0107, P1107.
2008 Chevrolet Malibu LT 2.4L Poor Idle Quality VIN: 1G1ZH57B58
Thank you to all for replies.Tried driving it to reset idle and when came to stop the idle would come down but once hit gas the idle would go back up.Replace throttle body and still had problem.Ended up reprogramming computer and relearn idle and car is good. Trouble codes: P0507.
2004 Chrysler Sebring Limited 2.7L Mechanical VIN: 1C3EL65R14
Job went great. Installed a new tensioner. Used manufacturers proceedure to set tensioner up. Thank for all the help
1998 Dodge Dakota 3.9L No Start VIN: 1B7FL26X5W
i checked all power and grounds could't find anything wrong. check crank shaft sensor it checked good so i replaced ecm . that was trhe fix.
2006 Dodge Ram 1500 ST 4.7L Hesitation, Cuts out, poor power VIN: 1D7HU18N86
Well this one is fixed. Customer asked for fuel pump replacement since filter is located on bottom of pump. After removing sending unit, filter on bottom looked ok, did not appear to be plugged. Replaced fuel pump assembly with an oe chrysler unit, and now fue...
1999 Ford Expedition Eddie Bauer 5.4L blows relief valve VIN: 1FMRU17L6X
Thanks for all the help, Especially Joe Brady, My neighbor down the street. He pursued several possible part number changes on the fan clutch for me. I got lots of oil out of the evaporator and condensor. The orfice looked ok, with just a few slivers, probably...
2002 Ford F-150 XL 4.2L No Start VIN: 1FTRF18262
Well another one is fixed, after following the trouble trees to a dead end, I started over. I assumed the new transceiver was good, and the code was a false one, so I had two new keys made, erased the program and programed them, still no start. With the clus... Trouble codes: B2103 (Atenna not connected faulty transceiver), B1600 (PATS transponder signal not received), B1681 (PATS transceiver module signal is not received).
2000 Honda Prelude 2.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: JHMBB6248Y
Thanks to all that replied , the car came back last friday and this time had mil on , code for cyl #2 missfire. i pulled the #2 plug and went in with a borescope and saw a mist in the cylinder , ran another block test and it failed twice. we repaired the headg...
2004 Honda Civic Hybrid 1.3L Mechanical VIN: JHMES95684
Hi to all of you reading this post. What I think is that the rocker return spring that broke was the cause of the problem. It looks like the hardened top, the part that pushes the rocker arm back, when it broke off got between the rocker and the spring cup and...
2000 Hyundai Sonata GLS 2.5L No Start, MIL Lamp on VIN: KMHWF35V5Y
The problem was definately flood induced. I went to the junk yard, cut out the connectors for the PCM from a different Sonata and then proceeded to cut and splice those new connectors in. The car started right after I finished the splice project. Thanks to all... Trouble codes: P0335 (crankshaft position sensor).
2007 Hyundai Santa Fe GLS 2.7L Compressor VIN: 5NMSG13D27
Came back today and she added overheating to her list of problems..We checked thatb and repaired leaks at both ends of both radiator hoses.We replaced the spring clamps with regular hose clamps.full of coolant it is running cooler all the time.I suspect the en...
2002 Mazda Protege5 2.0L Surge, MIL Lamp on VIN: FFJNFVDSG2
sorry, this one was not repaired. Owner just wanted to get it though inspection. I pinched off the return line and drove to set monitors. this on may have needed injectors but we will never know. Trouble codes: P0171.
2001 Mercury Cougar 2.5L Mechanical VIN: 1ZWFT61L81
Thanks for all the help IACV fixed it.Cleaning the intake and all the valves help but the IACV was the fix in the end Thank you
1995 Oldsmobile 98 Regency Elite 3.8L stalls VIN: 1G3CX52K9S
thank you for the replies.we did put a pcm in the vehicle,this corrected the voltage issue,but we still had a stall/dying issue with a hot a/c disabled notice on the information center.we decided to replace the crank sensor,this eliminated the dying issue but ...
1995 Pontiac Grand Am SE 2.3L Hesitation VIN: 1G2NE15D4S
The computer grounds were relocated to the engine block, however the engine block was painted cleaning the ground surface. corrected the problem
1999 Saturn SC2 1.9L Stalls VIN: 1G8ZG1278X
Thanks for all the input- Unfortunetly we did not find ant wiring issues thus far. The customer wanted to take it for time being. Its been over a couple of weeks they have not had the fuse blow. We will recommend just running a new power feed to injectors from...
2009 Volkswagen Jetta TDI 2.0L MIL Lamp on, No power VIN: 3VWAL71KX9
Vehicle repaired and in the customers hands for 2 weeks now. Turns out the problem was the turbo actuator. Looks like there is a fair amount of turbo/actuator trouble with this setup. There is supposedly several special tools for replacement but we made due. D... Trouble codes: P00AF.
2002 Volvo C70 2.3L No Start VIN: YV1NC53D42
want to thank you all for taking the time to reply on my post. yes we had a harness connector undone on left side of dash. was not the connect for the dash, somehow one of the other plugs had come unlatched and was loose.
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