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Prev Professional Automotive Repair Technical Discussions for February 1, 2012
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2005 Audi A4 2.0L Cuts out, MIL Lamp on VIN: WAUAF68E25
car runs normal when cold after warm up cuts off and p0089 code comes after few min. car restart if mil is erased comes back after about 1 min. of car running disconnect fuel pressure sensr and connect fuel gauge fuel pressure goes to 40 .. if i connect the se... Trouble codes: P0089
2006 Audi A6 3.2L stereo VIN: WAUKH74F86
We replaced the on board computer switch part # 4f1-919-610-R 1 month ago because one button was not working. everything worked fine for about 3 weeks and then the system went to only coming on sometimes and only working for a few minutes. We checked for any s...
1997 BMW 528i 2.8L No Forward Gears VIN: WBADD6323V
This vehicle has no forward gears and the code for the Main pressure solenoid comes right back after being cleared, even KOEO. There is no fluid seeping from the trans harness plug and the pins look good. I disconnected the computer harness and ohm tested all ...
1999 BMW 528i 2.8L abs VIN: WBADM6346X
This car goes into a [slow] antilock when you get close to stopping. It stops perfectly at higher speeds. When you get down to about 20mph, starts to chatter, only not normally. It is slower then it should be. I put a new abs cont unit on it and new front sens...
2000 BMW 740iL 4.4L Battery Light VIN: WBAGH8340Y
I charged battery for 10 mins, didn't get over 12.54 after that.The pixals on dash information bar is bad. I scanned with solus and euro,and found cooling fan code and owner didn't have time to leave. Wanting to scan with DIS but he will have to drop. No chang...
2001 BMW X5 4.4i 4.4L Poor Idle Quality, Misfire VIN: WBAFB33591
customer states driving on freeway suddenly lost power and started running poorly. Pulled codes using AE and got code 21 which said vanos. Looked on alldata and code 21 says o2 sensor. Also had codes for misfire on cylinders 1-4. I am home and cant remember th... Trouble codes: 21
2002 BMW X5 3.0i 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5UXFA53562
Thank you in advance for all the help. I have an 02 bmw x5 that only under load, roughly 3000rpm to 5500rpm, accelerating, between 60-70mph will throw a cyl 4 misfire fault and accelerator and brake pedal implausible codes.cylinder 4 coil new along with new pl... Trouble codes: 241 (Cylinder 4 misfire), 120 (Accelerator and brake pedals implausible values)
2003 BMW 745i 4.4L Excessive Emissions, Misfire, MIL Lamp on VIN: WBAGL63413
I am quite sure that this car has a bad variable valve gear module and while I would be happy to have any tips on being sure of that my main question is about programming. We have a pass through device and are capable of software downloads but when I tried to ... Trouble codes: 2852 (variable valve gear reference sensor bank 1), 2862 (variable valve gear voltage supply bank 1), 2863 (variable valve gear voltage supply bank 2), 2865 (variable valve gear in limp home)
2007 BMW 335i 3.0L dsc/abs VIN: WBAWB73527
Car throws a code 0x5db2 (23986) once you hit 15 mph. I cannot find a code definition for this, Any help is appreciated.
1992 Chevrolet Corvette 5.7L gauges VIN: 1G1YY23P4N
the lights on the four guages on the right side of instument cluster flicker . does not affect eny of the other lights . does it with reostat moved to high or low light . doe not have very good wiring diagram .
1999 Chevrolet C1500 Suburban 5.7L Hesitation, Misfire VIN: 3GNEC16R5X
Hi guys, I have a problem suburban thats driving me nuts... it has a problem with the plug wires arcing or carbon tracking, You can see all 8 doing it in a dark garage, I replaced the cap rotor , wires and plugs. ac/ delco plugs, cap and rotor, aftermarket wir...
2005 Chevrolet Avalanche 1500 LT 5.3L rear end VIN: 3GNEK12Z45
Customer complains of poor gas mileage & left rear tire skipping around left hand turns. Ive never experienced it myself,but was test driven many times.Customer states that its happened 4-5 times over the past 2 years.In the past 2 years only gets 11 mpg.any h...
1998 Chrysler Sebring JXi 2.5L MIL Lamp on VIN: 3C3EL55H9W
Hi, The codes in the related history were repaired by addressing those issues, the LT & ST trims were +25 before the o2 replacement and as sweet as could be after, the customer drove the car for about 100 miles afterwards and about that time the light came on ... Trouble codes: P0401 (Egr flow)
2005 Chrysler Pacifica Touring 3.5L MIL Lamp on VIN: 2C4GM68405
Hello everyone, I am hoping someone can help us with this problem child. It first came to our shop with the code P0133 and the tech here replaced both upstream and downstream O2 sensors with aftermarket sensors, cleared codes and performed a 40 mile test drive... Trouble codes: P0133 (O2 sensor 1/1 slow response)
2007 Chrysler Pacifica Touring 4.0L Emissions VIN: 2A8GF68X87
The customer went to have his vehicle emission tested last month and was told that it would not pass due to the O2 monitor and cat monitor have not set. We had scanned it and found no codes but the same issue with the monitors not running. We drove the vehicle...
2008 Chrysler Town & Country (Van) Touring 3.8L oil VIN: 2A8HR54P48
Seems were are seeing a bunch of Chrysler/Dodge 3.8's with excessive oil consumption. This van is drinking a quart of Pennzoil every 750 miles. Tailpipe emission is clean and spark plugs are clean also. We are going to try a different PCV valve and have alread...
1991 Dodge D350 5.9L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 1B6ME3655M
hi there. the concern with this vehicle is that it hesitates/bogs, backfires through the Throttle body under acceleration. runs rough at idle, sort of idle hunts at times. Scoped the TPS, hall effect CKP, and secondary ignition all seem OK. also scoped exhaust...
1996 Dodge Ram 2500 Truck 5.9L No Start VIN: 1B7KC23C5T
Engine will not start...customer towed truck to our shop. We work on his other vehicles so we are trying to fix this one even though we don't do much diesel engine work. It will start right up if you give it a shot of starting fluid and run ok but as soon as y...
2000 Dodge Ram 2500 Truck 5.9L Shift Point VIN: 3B7KC2669Y
I put in a transmission on this truck because the old one had a problem with it not shifting out of first at all. I dropped the pan and there was a lot of metal shavings in the pan and there was some small chunks of aluminum. The truck came back in two weeks ...
2004 Dodge Sprinter 2500 2.7L Lack of power VIN: WD2PD64414
I really hope somebody out there ran into this issue.please read carefully.truck came in with low power take from dead stop.looking at the drb3 when power brake the engine. Rpm max out to 1800 rpm and boost stays at 25psi wot.rpm should reach 2500 and boost sh...
2007 Dodge Ram 1500 Truck TRX4 5.7L 4-5 shift VIN: 1D7HU18287
hi to all and thanks for any help. i this 2007 ram 1500 with a 5.7 and a 545rfe trans. when accelerating on to interstate when you level off at around 70 mph the tach will be at at around 2100rpm and will stay there for a while and then drop to around 1800, so...
2007 Dodge Ram 2500 Truck SLT 6.7L MIL Lamp on VIN: 3D7KR28A37
Hi i cant clear codes and truck is in limp mode, is there any way to reset overhead message and return ecu to normal, the dpf burn off cant be activated from scanner due to reduced power Trouble codes: P242F, P0471, P2463, P1451
2008 Dodge Ram 2500 Truck Laramie 6.7L Rear Main Seal VIN: 3D7K28A38G
Rear main seal look like its leaking. Is there any other thing that it could come from? It is dry above the flywheel housing. Thank for any hep!
1998 Ford Explorer Sport 4.0L Timing Chain VIN: 1FMYU22E9W
Vehicle came in with large oil leak. We found a hole in the left valve cover caused by a broken timing chain guide. The engine ran at this time and just leaked oil real bad. We ordered replacement chain from ford. After locking cams in place and replacing fron...
1999 Ford F-150 XL 4.2L unknown VIN: 1FTZF1729X
I got this old truck, 99 150 4.2l. It has what feels like a misfire/vibration. the vibration happens a little at idle and happens throughout the rpm range at varing amplitudes. If I power brake the truck I get a .5 order engine vibration, thats 15hz, at 1800rp...
1999 Ford F-350 Super Duty Lariat 7.3L Hesitation VIN: 1FTWX33F9X
This truck has no power.will not rev past 2500 in park and only 1500 in gear holding voltage is 1.43 at idle,exhaust pressure volts is .88 at idle,exhaust back pressure 14.40 at idle,exhaust pressure reg. 0% at idle.oil has been changed ,changed Ebp ... Trouble codes: P1247, P1248, P0476
2003 Ford Mustang 3.8L Abs/Trac Module VIN: 1FAFP404X3
Thanks in advance for your time. We've got a Mustang in our shop that the traction control and ABS warning lights will not turn off. The trouble code setting is U1043 - "Standard Communication Protocol Invalid/Missing Data for Traction Control". This vehicle...
2004 Ford F-150 FX4 5.4L Hesitation VIN: 1FTPX14504
Customer states that while driving-highway or city- vehicle will not go when pressing on gas pedal. I drove it home last nite and after a 15 mile run on highway and 4 miles on city, theft lite on top of dash came on and truck feels like it just idles. Does not...
2005 Ford F-550 Super Duty Lariat 6.0L hpop VIN: 1FDAF57PX5
This truck came in as a no start; customer replaced fuel filters & tested with starter fluid but still no start. We diagnosed a blown logic fuse for the ficm, but still no start. Removed ipr, screen split in centre. Replaced ipr, truck ran for 15 min then star...
2004 GMC Envoy SLE 4.2L Exhaust Manifold Bolt VIN: 1GKDT13S04
Out of all 11 bolts securing the exhaust manifold to the head, the farthest rear bolt breaks off about 1/4" inside from flush. There is no possible way for even an angle drill with a 1" bit to drill this bolt out. My question to you all is, do I pull the cyl...
2001 Honda Civic EX 1.7L Loses OBD monitors VIN: 1HGEM22941
Hello all. We have the above mentioned vehicle here trying to cure the cause of emission failure. The car will lose all it's run OBD monitors every key cycle. Usually the Backup fuse keeps power to the PCM on these and a blown fuse often is the culprit. The f...
2001 Honda Odyssey LX 3.5L Ignition System VIN: 2HKRL18591
We just finished installing the Transmission we rebuilt, and had a crank but no start condition. Appeared to have no spark after pulling 1 coil. Battery seemed to be cranking a little slow, so I charged battery. After charging for 20 minutes, I cranked the eng...
2006 Hyundai Santa Fe GL 2.4L Hesitation, Cuts out, Stall VIN: KM8SB12B86
Vehicle cuts out intermittently, Tach goes to zero, check engine light comes on. This will happen only for a moment, then continue driving. Engine won't stop as you are in gear.(manual trans) Seems to do it more in the morning on first drive. May sometimes do ... Trouble codes: P0134
2002 Jaguar XKR 4.0L Cabin filter VIN: SAJDA42B62
Location of cabin air filter
2003 Jaguar S-Type R 4.2L Ecm VIN: SAJEA03V23
I reflashed the ECM and TCM wanting to have the latest calibrations in each (the ECM to possibly help with the lean codes, and the TCM with an eye to running the trans adaption routine to fix a shift quality issue). Upon trying to restart the car I find that t...
2008 Kia Rondo LX 2.7L Misfire VIN: KNAFG52658
I am looking for firing order for the number 5 cylinder alldata tells you the firing order but not give location thanks for your help
2010 Land Rover Range Rover Sport Supercharged 5.0L Pads VIN: SALSH2E4XA
I want to know if anyone has had any problems with this vehicle as far as brake jobs go. I have not done the job yet and was considering using Wearever Golds all the way around. The vehicle has 27K on it and all four sets of pads are worn evenly. I see no abno...
1997 Mazda 626 DX 2.0L Poor Idle Quality, Surge, Stall VIN: 1YVGE22C9V
This car came to me from a used car lot after another shop put a head gasket in it. They don't know how it was running before the repair because they bought the car with the "headgasket problem" so I don't know how it was running before that repair. I have got...
2003 Mercedes-Benz CL500 5.0L Air flow VIN: WDBPJ75J93
Hello MB Techs In the Air conditioning setting,from all vents cold air comes out, except the right side vent hot air comes out and also we tried to clear the code but it will not clear, please advise what other tests we must do to find the solution to this pro...
2006 Mercedes-Benz C280 Luxury 3.0L radiator fan VIN: WDBRF54HX6
This vehicle came in with the "coolant, go to workshop" in the display and the temperature runing hot; about 3/4 the way up on the gauge. I scanned for codes an found P0694 set, it says "Suction Fan output stage...The only information I can find is a schematic...
2007 Nissan Versa SL 1.8L speedometer not working. uses CAN & ECM. VIN: 3N1BC13E37
Checked for causes of speedometer not working. (Don't know if it was working before clutch was done here, since clutch was completely destroyed, unable to drive the car). Checked all fuses at fuse box under hood, & under dash, PLUS 18 fuses UNDER fuse & relay ...
2001 Oldsmobile Alero GL 2.4L Misfire VIN: 1G3NL52TX1
customer brought the car in ,said it has been doeing this for about 4 mo. when it is ideling it will intermit. skip you can here a slight pop pop out of the exaust. it will idel for moment do the the same thing ,raise the rpm a little it don,t do it. runs down... Trouble codes: P0300
1998 Pontiac Firebird 3.8L Excessive Emissions, Stall VIN: 2G2FS22K9W
This thing came in running rough and lots of smoke,no codes. unplugged the maf and it cleaned out and ran good. Replaced maf with reman.and no change shoes 20 to 25 gps. at idle the second reman shoes 65 gps at idle and it died right away. What is the normal h...
2006 Pontiac G6 GTP 3.9L Misfire VIN: 1G2ZM15166
This G6 came in with misfire and trac light coming on. Upon inspection found CEL did not work and the trac light was coming on due to fault in pcm. Found random misfire and catalyst efficiency code for bank 2. Traced misfire back to #2 being a dead misfire. Co...
2006 Pontiac Torrent 3.4L Unknown VIN: 2CKDL63F46
Intermittantly after the vehicle is warm this vehicle has a very long neutral to drive engagement time, approx 3 seconds. I have uploaded some pressure waveforms that somebody may find interesting, feel free to comment on what you think the problem could be or...
2004 Porsche Cayenne 3.2L heated seats VIN: WP1AB29P24
both heated seats innop, fuse 22 (right hand fuse panel keeps blowing with ign on, what info I do have does not give me much reference, hoping their may be a common failure, any help would be great, also the passenger front door ajar/interior lamps come on/off...
2004 Porsche Cayenne S 4.5L Hesitation, Misfire VIN: WP1AB29P14
I wonder if anybody had same problem. The customer was in other shop for code P0199, sensor was replaced, but after three months same P0199 problem, and I think it is not related to engine hesitation. Recently the new problem happens: hesitation under very sli... Trouble codes: P0011 (A camshaft position timing over advanced B1), P0301 (Cylinder 1 Misfire), P0199 (Engine oil temperature sensor intermittent)
1998 Saab 900 SE Turbo 2.0L Stall VIN: YS3DF55N7W
Customer complian car dies out while he's driving or when come to stop, install new fuel pump, new ignition casset new crank sgaft sensor & new purge valve, all parts are OEM , & still doing the same, any help will be greatly appreciated
2003 Saturn Vue 3.0L air condition VIN: 5GZCZ53B33
As soon as you turn on the ac with the engine running the security telltale illuminates and the ac clutch cycles in sync with the security telltale. All wires to and from ac relay to the ecm and ac clutch intact without shorts. Checked bcm and ac controller fo...
2006 Scion tC 2.4L MIL Lamp on VIN: JTKDE17716
Just wantedsom insite on this one. Found the tsb's for these codes and performed the test. Cleared codes and run evap test through scanner. Well it passed that test and the code did not return righ away. Keep in mind we smoked it befor we found the tsb's. Cust... Trouble codes: P0455 (Evap emmissions leak detected), P0441 (Evap emmission incorrect purge flow)
2006 Subaru Outback 2.5i 2.5L parking lights VIN: 4S4BP61C16
I have no parking lights with the headlight switch. All parking lights and license lights work with the parking light switch. The blk/wh out of the headlight switch functions, the tail illumination relay clicks and 12v comes out of the tail illum relay on the ...
1987 Toyota MR2 GT 1.6L Cuts out VIN: JT2AW15C9H
The super charger clutch does not engage .if i ground the p.c.m. Side of the relay it will kick in.and work ok. My ? what does the p.c.m. Have to see to turn the relay on. Also noticed that the blue vtv not hooked up. The under the hood vacuum diag. Makes no s...
2004 Toyota Tacoma 3.4L thermostat VIN: 5TEHN72N24
hello all this toy is came in wrecked with smashed radiator the customer continued to drive the truck with no coolant. Replaced radiator and conducted re-agent test which it failed. Replaced head gaskets now the truck is running just a tad bit over half on the...
2002 Vauxhall ASTRA 1.8L Diagnostics
The problem is as follows vehicle has mil light on (engine) now the scan tool cant communicate with the power train systems but can communicate with airbag,instument cluster etc. But systems such as abs,imobilizer,tcm and ecu cant be communicated with i have t...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1988 Chevrolet C1500 Cheyenne 5.7L Excessive Emissions VIN: 1GCDC14K8J
Well after two ecu's we finally got grnd to the grey wire feeding the egr control valve. replacing the neutral switch on the colum didn't seem to effect the system. thanks to all that replied. with grnd to the egr and it working we were able to reduce the nox...
1999 Chevrolet Silverado 1500 5.3L driveability VIN: 2GCEK19TXX
Hello, aparantly my Modis had a problem with this vehicle. I borrowered a Solius and was able to read codes and data with the key in the run position. Therefore I was able to do a crank learn. Thanks for all the help. Jeff
2001 Chevrolet Cavalier LS 2.4L harsh shifts VIN: 1G1JF52T71
thanks for all the help replaced the sensor and the harness with ome parts. all shifts are normal and no codes. just a note the dwd part was defective and looking back in our rec. we have had a high come back rate due to these parts mainly in critical aeras....
2004 Chevrolet Blazer LS 4.3L Hesitation, Cuts out, MIL Lamp on VIN: 1GNDT13X54
Thank you to all for your replies.The problem was clogged cats.Customer did authorized to replace and did so.Didnt wont to go any fether why it clogged.He did own intake gaskets and didnt change oil.Said when torque intake down bolts were breaken only to find ... Trouble codes: P0300.
1996 Chrysler Cirrus LX 2.5L Cuts out, Stall VIN: 1C3EJ56H0T
As always thanks to all of you who take the time to respond to those of us seeking help. As I mentioned in the update I was waiting for a second PCM. The second PCM worked fine. Plugged it in and everything works. Thanks everyone again.
1998 Dodge Ram 1500 Truck 3.9L Governor Pressure VIN: 1B7HC16XXW
First off, I want to thank everyone for their replies. We did hook a gauge to the Gov pressure port and it was showing exactly the same reading as the PCM. Coming out of park or neutral, the first series of shifts would occur normally, with gov pressure ra...
2006 Dodge Charger SXT 3.5L traction control VIN: 2B3KA43GX6
thanks for all the responses. turns out the bulb in the cluster was loose.
1990 Ford F-250 Custom 7.5L Fuel Pump VIN: 1FTHX26C9L
2002 Ford F-350 Super Duty Lariat 7.3L brakes VIN: 1FTWX33FX2
after replacing BOTH front calipers, hoses, rotors, pads, ABS unit, f/E Alignment, tested ball-joints by removing tie-rods and looking for stiffness/movement, and for binding U-joints at wheels, from MY point of view it still pulls... the customer took it to h...
2003 Ford Explorer Postal 4.0L windshield washer and headlites VIN: 1FMZU72K73
Thanks to all that replied. It ened up being the multi function switch. smelt burnt so checked grounds and volts coming in to switch. the wipers also worked slow, the customer never mentioned that. Thanks again IATNers
2006 Ford E-250 5.4L Cuts out, Stall VIN: 1FTNS24LA6
Thank you to all who replied. Denis and Mark hit the nail on the head with this one. Also I continued researching archives and found another post identical to mine. (Dont know why I didnt see it on original search) It was one of the eight coils causing problem...
2009 Ford E-350 Super Duty 6.0L Misfire VIN: 1FDSS34PX9
thanks for all the replies. after checking things more i did find aintermintent conection at the engine injector harness. repaired the harness and the problem was gone. thanks again.
2011 Ford Escape Limited 3.0L radio VIN: 1FMCU9EG1B
Turns out that ford has finally agreed that the radio did have a problem. They replaced it under warranty and so far so good. Thanks again everyone..
2004 Honda Civic DX 1.7L Poor Idle Quality, Hesitation, Surge VIN: 1HGEM21144
The customer took the vehicle to the dealership and the dealership says the EGR is clogged and causing it to run rough. This makes no sense to me. This would not cause the ECU to fry. I just think who-ever worked on it doesn't have a clue. Thankyou everyon...
1998 Jeep Grand Cherokee Laredo 4.0L No Start VIN: 1J4GZ58S4W
recieved a lot of great information but I still haven't fixed the issue, mainly due to health reasons and time constraints. Soon as I figure it out I will post an update.. thanks to everyone that's helped!
1995 Nissan Quest GXE 3.0L Excessive Emissions, Hesitation, MIL Lamp on VIN: 4N2DN11W1S
first off i am sorry i haven't closed this sooner.well this one is one for the books.this is one of just a few vehicles in 25 years that i couldn't give everyone the run down this is what was done.the vehicle came to me from another shop which spent a t... Trouble codes: 33 (o2 senser circuit fault).
2000 Nissan Xterra SE 3.3L Cooling Systems VIN: 5N1ED28Y4Y
fixed. Most of the 16 replies were dead on. pulled the water pump and the impeller, while still there, free spins on the shaft. also found the passenger side cam 2 tooth off. Water pump was the fix. BTW has anyone ever seen one of there without a/c. some...
1984 Porsche 911 Carrera 3.2L No Start VIN: WP0ZZZ91ZE
Replies said either one of the crank sensors or the DME was bad. Some said to ck. that the connectors were not switched in the engine bay. 2 of the replies gave me the wiring colors and connections at the DME that I had asked for. After scoping the signals at ...
2001 Subaru Outback Limited 2.5L MIL Lamp on VIN: 4S3BH68611
thanks for all the responses. we kept at it on this vehicle and found a very small pin hole in the neck of the filler, we had to remove it and smoke test it on the bench as well as clean all the surface rust off of it to find the hole. everyones help really le... Trouble codes: P0456.
2003 Toyota RAV4 2.0L Cuts out, Stall, Misfire VIN: JTEHH20V63
Thanks everyone vehicle is fixed. Several good replies. Al [...] thought it could be the battery or connection, although no loss of power was ever discovered., or possible fuel/water. Good basic stuff but not consistent with symptom presentation. Rashid ...
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