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Prev Professional Automotive Repair Technical Discussions for February 14, 2012
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Help Request Answers
1990 BMW 535i 3.5L automatic upshifts VIN: WBAHD2318L
Car came to me after being at another shop for front end alignment. When it was picked up, it would only run in first gear. Switching to manual mode allowes first, second and third, no fourth gear. From the wiring diagram it looks like the manual shifting mode...
2002 BMW 325Ci 2.5L Electronic VIN: WBABS33492
Have a brain teaser here. I need help from the bmw auto transmission guys out there. I am very well experienced with the 6hp series of transmissions, but this 5hp has me stumped. Customer has had battery issue for several months, and after 2nd conversation rev...
2002 BMW M3 3.2L Shift travel position VIN: WBSBL93462
This M3 keeps turning on trans fault light with code (037)25 shift travel position sensor and code (036)24 Selection angle position sensor. I did a flash update to the EGS module and ran a complete adaptation on gearbox and still have same codes. I have no dia...
2004 BMW 745Li 4.4L Turn signals, hazards VIN: WBAGN634X4
Hello everyone, I had a customer come into the shop this past Saturday, at the end of our day and he had inoperable turn signals as well as hazard switch. I looked at the electrical schematics from a program we have at the shop but I didn't see anything (not...
1986 Buick Skylark Custom 2.5L Instruments VIN: 1G4NJ69U8G
This car has an LCD instrument cluster. It works fine but when you turn on the lights. (either parking or headlights) The display goes blank. We took the headlight switch out and took it apart. We cleaned the contacts and put it back in but it didn't help. We ...
1992 Cadillac Eldorado 4.9L SErvivis engine soon light VIN: 1G6EL13B6N
Codes I033 I034 I037 I039 are displayed when retrieved from instrument cluster. Do these codes cause light to come ON? Scanner looses communication with the car. Service Soon Light stays ON . Scanner displayed code 62 at one time . Does this code cause light t...
2002 Cadillac Escalade 6.0L abs VIN: 3GYEK63N62
Stabilitrac light coming on, code C0286 in memory. Mitchell indicates MPA switch problem for accumulator, Scanner says code is amber light shorted to battery. Noe PID on my scanner giving me charged or uncharged accumulator assuming im even in the right area. ...
1997 Chevrolet C3500 Cheyenne 6.5L Trans WOT shifts VIN: 1GCHC39F5V
Please help, help help. A problem child that has had multiple issues before this particular one! This truck had a 6.5T with an electronically controlled injection pump. Engine had a cracked block so the engine was replaced. Since the truck had a problem quitti...
1999 Chevrolet Astro 4.3L MIL Lamp on VIN: 1GCDM19W1X
scanned found p0143 b1s3 volt low and tech2 scanner reads 0-4mv pink and black wire for heater will light a headlamp bulb bright. overlay ppl/wht and tan/wht wires from sensor to pcm now read 451mv like an open ckt both sig hi andlo wires will light a bulb one...
2002 Chevrolet Silverado 3500 6.6L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1GCJK33172
This Duramax misses and smokes all the time. GM dealership replaced right side injectors. Has no engine codes. Smoke is definatly fuel related. Fuel actual and desired are good. have high return rates #5 12.0 and all others are at 7.0 exept for #4 which is at ...
2003 Chevrolet Silverado 1500 4.8L Passenger Position Sensor VIN: 2GCEK19V13
Like I said previously, I replaced the SDM and it didn't fix the problem. I have Checked continuity between both Seat Position Sensor, Seatbelt Switch And Seat Harness. All checked out good. Even jumped the wires leading to the (Hall effect) Seat position Sens...
2006 Chevrolet C5500 Kodiak C5C042 6.6L fuel VIN: 1GDE5C3266
vechile has a stored code of p0087 check for high vacuum on fuel filter found it to be with in specs command fuel regulator to 180 mpa and found the max acutaul will go to is 120 to 135 mpa talking to another tech he suggested to change the over flow value in ...
2004 Chrysler Concorde LXi 3.5L Poor Idle Quality VIN: 2C3HD36M34
car cam in with P0173,p0175 rich and Bank 2 o2 sensor slow response. found intake gaskets leaking and replaced. Since then car runs rich at cold start up and sets code p0132 and issue clears up after about 5 min I have replaced both front o2 sensors any help w... Trouble codes: P0132
1999 Dodge Ram 2500 Truck 5.9L Cuts out VIN: 3B7KF2661X
hi everyone,i have code p0216 {inj pump timing}which i know means i have to replace the lift and injection stupid question is i dropped the gas tank to check for debris due to dirt seen in fuel filter housing{this is my personal truck)and there was no...
2000 Dodge Intrepid 2.7L Surge, Cuts out VIN: 2B3HD46R5Y
This car runs fine at idle and up to 2800 rpm, then surges like its on the rev limiter. Also has a long crank before starting.Scan tool shows data n/a, but will clear codes.Code 00253 comes right back when car is started. Checked cam timing, fuel pressure, and... Trouble codes: 00253 (unknown)
2003 Dodge Ram 2500 Truck 5.7L MIL Lamp on VIN: 3D7KU28D93
i have a dodge pickup that will not accelerate or idle, the throttle plate will not move.there is no vacumm in the intake.i replaced the throttle assembly and did a relearn,to no avail.with key on engine off the tps sensors are in spec but will not change beca... Trouble codes: P2106, P2172, P2108, P0222, P0123
2005 Dodge Grand Caravan SXT 3.8L Prndl VIN: 2D4GP44L65
all gauges and lights react properly to command from modus thanks in advance.
2000 Ford F-150 Lariat 5.4L Coolant color VIN: 1FTRX18L2Y
The customer on this vehicle had to add 2 quarts of oil recently so they were looking for where it may have went and noticed that the coolant looks a darker gray color so they wanted me to have a look at it, I got it in and noticed that the coolant does look d...
2000 Ford Excursion Limited 7.3L Tcc VIN: 1FMSU43F7Y
This transmission works perfectly once it is warmed up. When cold it will more often than not engage the convertor clutch and lug or stall in reverse. Does not do it in drive buy may occasionally take a second or two to engage but only when the ambient is in t...
2003 Ford Expedition XLT 5.4L module coding VIN: 1FMPU16L43
According to owner he went into a Ford Dealership up North due to plug blow-out while on the road and had them fix it. Calling him to pick up they asked him about his ABS Lamp on. he stated it had never remained on before. Per the customer they had it 3 days d...
2003 Ford Explorer Sport XLS 4.0L Poor Idle Quality VIN: 1FMYU60E93
Engine is slightly running rough when warm at idle. This is a long time customer that knows his Explorer well. About 2 months ago he starts complaining of a rough idle when warm. I have looked at this with the IDS and here is what I have seen. On power balance...
2004 Ford Explorer NBX 4.0L No Start VIN: 1FMZU73E24
This explorer is a no crank condition. Checked wiring to start relay and PCM is not providing ground to relay coil. Vehicle cranks fine but won't start with a remote start button. Pulled codes and found B1601 PATS code. No security light. When through the diag... Trouble codes: B1601
2005 Ford F-550 Super Duty XLT 6.0L high idle VIN: 3D7LS38C65
I am working on a 2005 f 550, another shop has installed the high idle onto this vehicle using upfitter switch number 4. when switch is engauged the high idle is inop. there is 12v at switch and when switch is engauged there is 12v at pcm. I suspect a faulty p...
2007 Ford Freestyle Limited 3.0L rear calipers VIN: 1FMDK06117
First, thanks to all those in IATN whose advice has helped me many times before! Today I'm puzzled by the rear caliper pistons, which won't go in. MOTOR says to use a special tool that indexes with two notches in the piston, and turn clockwise. I have that too...
2009 Ford F-150 Platinum 5.4L Transmission VIN: 1FTPW14V49
Twice in the last month while driving this vehicle (within 1 .5 miles of cold start) vehicle appeared to go into sometype of limp in mode/ transmission not up shift-downshift and gauges would flash off,wrench symbol on dash came on would come. Customer shut ve...
2003 GMC Sonoma SL 4.3L ABS light on VIN: 1GTCS19X03
we have a hard code co222 (rear) front wheel speed sensor fault. i do have a gm service manuel on the computer but it dont talk alot about this code. i am lost. is it the speed sensor on the trans that also is the one for the computer and cluster? or is it ano...
2003 GMC Sierra 2500 HD SLE 6.6L steering VIN: 1GTHK23103
truck came in with complaint of easy to steer left but won't turn right. You have to practically force the steering wheel to turn right and it seems to catch and release while turning. Same condition with wheels off the ground. You can hear the power steering ...
2004 GMC Sierra 2500 SLE 6.0L Poor Idle Quality, Misfire VIN: 1GTHC24U54
Truck has rough idle and LTFT -12 both banks .Also has lack of power. Sometimes fuel trims will go back to normal at about -4 LTFT Drop exhaust to check for plugged cat. ok. Went for another test drive and LTFT is now +15 on both banks. MAF sensor was replaced... Trouble codes: P0101 (MAF performance), P0172 (Bank 1 rich), P0175 (Bank 2 rich)
2000 Honda Accord EX 3.0L Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1HGCG1659Y
Car came in with all cylinder misfires, random misfire, and egr malfunction/low flow. Replaced intake manifold gasket, plenum gasket, fuel injector o-rings, and cleaned up EGR ports plugged by carbon deposits which caused the misfire. However after reinstallin... Trouble codes: P0300, P1492, P0401
2005 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 5FNRL38755
Hey folks, got this van that has a random misfire on all cylinders. When i scan data with Snapon Solus Pro, I can see that all cylinders misfires. Funny thing is, sometime when it warm up, it runs fine( no misfire detected by scanner. My wife has the same vehi... Trouble codes: P0300, P0302, P0304, P0305, P0306
2008 Honda Pilot EX 3.5L Immobilizer VIN: 5FNYF18588
Hi, I just need some information. I need to register a new key for this vehicle, I have the HDS, and the key was supplied by my local Honda Dealer. I do not know where to get the 1st password from the iN system. I can find no reference for this system. Can som...
2001 Hyundai XG300 3.0L steering pump VIN: KMHFU45D61
Hi guys and Hyundai techs.We have this car with no power steering assit.We looked for any wires at steering pump or rack and see no wires,so it should be a non-electronic power steering,are we correct? We here at the automotive college have a pressure test too...
2003 Kia Sedona EX 3.5L MIL Lamp on VIN: KNDUP13173
Car came in with poor performance and P0103, MAF circuit high. Replaced MAF and cleared code. Car came back in a couple days with P0171 and P0174, system lean codes. We suspected the MAF sensor and replaced it again since the lean codes were not there original... Trouble codes: P0103, P0171, P0174
2005 Kia Sedona EX 3.5L Poor Idle Quality, Surge, Cuts out, Stall VIN: KNDUP13195
Aloha fellow mechanics, my name is [...] from honolulu hawaii. I have a 2005 kia sedona van that was towed into my shop, customer complained that the vehicle was running fine, then it stopped suddenly. Vehicle starts again but it wont idle itself. Checked with... Trouble codes: P0107 (Manifold absolute pressure/barometric pressure circuit low)
2003 Land Rover Discovery SE 4.6L MIL Lamp on VIN: SALTY16473
vehicle came in for a coolant leak, check engine light which was cylinder misfire number 3 and random cylinder misfire, and multiple leaks for coolant an oil. after replacing v-cover gaskets, plenum gaskets now has codes for bank 1 and 2 upstream o2 sensors wh... Trouble codes: P0130, P0130
1999 Mercedes-Benz S420 4.2L no shift VIN: WDBGA43G3X
Information on mitchell/alldata is scarce for this vehicle, so any help with this condition would be appreciated. It seems that the vehicle goes into limp mode and does not shift when it has been sitting in the cold. I am using snap on verus software to commun...
2009 Mercury Mariner 3.0L RF sensor VIN: 4M2CU81G49
Hello iatn! I have been working on this car for this tpms issue for a few days and im not really sure where to go next. On the message display in the car, it says Tire Pressure Sensor Fault, and the tire light will flash for about 60 seconds then stay on stea...
2002 Nissan Altima 2.5L No Start VIN: 1N4AL11D92
Hi, to all techs. Out there. We did complete head gasket job on this baby in vovember, came in on hook yesterday with no start. Had codes u1000 and u1001 also antitheft light was staying on all time, so installed new immobilizier and programmed. Now when we tr... Trouble codes: 1000 (Communication peoblem), 1001 (Communication problem)
2004 Nissan Altima S 2.5L No Start VIN: 1N4AL11D44
We got this car from the auction. It will fire for a second but will not run. When you check for spark it fires about three times than has no spark. Sets no codes. I have replaced the cam and crank sensors no change. Has fuel fouled plugs replaced them also.
2001 Porsche Boxster Roadster 2.7L oil level display VIN: WP0CA298X1
The customer hooked up a new battery backward. It fried the alternator and blew the fuse at the back of the radio. I repaired those two items but the oil level display does not work and flashes when key is turned on. Customer states this started happening afte...
2000 Saab 9-5 2.3t 2.3L Cuts out, Stall VIN: YS3ED58E4Y
hello all thanks for the help in advance. i have this wonderful saab (no such thing)that dies when hot does not matter under load or idle. the car will just shut off like i turned the key off. sometimes the engine will refire on its own if u are going along un...
1993 Subaru Legacy LS 2.2L drivetrain VIN: 4S3BC6539P
Hey Subaru Guys! I need your expertise! I have this 93 legacy and after driving for a short time, long enough to get it warmed up, it seems to bind when going into a slow, sharp turn. Like when turning into a parking spot. The car will actually come to a stop ...
2004 Subaru Impreza WRX 2.0L turbo lag VIN: JF1GD29624
hello everyone i have a subaru wrx with a turbo problem. seems that its not building boost. with my gauge hooked up driving and when accelerating, boost is flucuating from 0 to 5, then around 5000 rpm, the boost will jump to 10 as i shift. i can move the waste...
2005 Subaru Outback i 2.5L Engine VIN: 4S4BP61C95
Just looking for a quick heads up or direction before tearing into this vehicle. Customer was driving car when he heard a slight "popping" noise. Drove another mile and started to hear a rattle. Pulled over and smoke billowed from under the car. Customer then...
1995 Toyota Celica GT 2.2L ignition VIN: JT2ST07N7S
Customer has had issues with vehicle going fine for a while then vehicle will not start . vehicle has been towed and after vehicle set's for a little while it will start up and work properly . It has been advise to have the key and lock cylinder replaced . the...
1995 Volkswagen Jetta Celebration Edition 2.0L Engine start VIN: 3VWWC81H6S
Car came in with dying at start up and rough running. We replaced coolant temp sensor, oxygen sensor, MAF sensor and did full tune up on vehicle. Runs alot smoother and when it left we had "fixed" the dying at start up issue. Customer says that happens when ho...
1998 Volvo V70 2.4L speedo VIN: YV1LW5549W
This Volvo has an intermittent inop speedo, mostly when cold. The abs light is on with dtc 311 LF wheel sensor signal intermittent fault in sensor circuit and one dtc in cluster for 221 VSS signal missing. I have checked to VSS and according to All data specs ...
2002 Volvo V70 2.4T 2.4L Key Cyl
Hi Folks, This is the wifes car , she just called and said key will not turn. Wiggling steering wheel was no help. I have seen posts of bad cyls and "lock" assys ...question is, I',m 60 miles away at work, what will I need at home tonight, to get Cyl out ? And...
2004 Volvo XC90 T6 2.9L turbo VIN: YV1CM91H14
vehicle came in with check engine light on it had a code 6805 we cleared the code and test drove it as soon as you give it enough gas to get the turbo spinning the code comes right we smoked checked the system no leaks were found.we changed the turbo p...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1996 BMW 328is 2.8L Door Chime VIN: WBABG1326T
Thanks to Scott. You were on the money. The IGN switch itself was the problem. the plunger was broken and never broke contact when the key was removed. Customer declined repair and I installed a piece of tape between the contacts to stop the chime.
1991 Buick Regal Custom 3.8L Battery draw VIN: 2G4WB54L7M
After tracing all connections and grounds and confirming my door switches and seat belt retracters were not the problems, I installed a new headlamp switch. The vehicle sat in my yard for a week two different times and was started up perfectly. Luckily this is...
2001 Chevrolet Blazer LS 4.3L MIL Lamp on VIN: 1GNDT13W41
Hello Group: I must say I had a great response. 22 replies and all had great suggestions. You know how you finaly fix the vehicle and then the customer tells you "oh yeah I forgot about that". Well the new injector assembly was new but 1 year ago. I found som... Trouble codes: P0171.
2003 Chevrolet Tracker 2.0L Engine VIN: 2CNBJ13C23
This vehicle was a bit of a pain but after going back through the mounts and checking the keyway on the crank I decied to trya swag and replace the balancer any way and it greatly reduced the vibration at idle Thanks guys for all the advise
2004 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEK19T74
First, thanks for your help. And a correction, the code for the rear speed sensor circuit, is C0237. I had the numbers transposed. The problems all seemed to be cured by adding an additional ground wire from the PCM to the engine ground. It had initially been ... Trouble codes: P0342, C0327 (Erratic rear speed sensor).
2006 Chevrolet Uplander LT 3.5L Power Sliding Door VIN: 1GNDV33L06
After the door motor was installed, the door didn't work and I had no way of getting access into the power door module to read codes and my dealers were all backed up. After some hunting online I found someone that said if there were any codes in the power doo...
2008 Chevrolet Silverado 1500 WT 4.3L Tcc Solenoid VIN: 1GCEC14X98
so everyone knows the power circut pink 2139 is powered through the run/crank relay and the ign switch cannot be an issue due to bcm powering run/crank relay.i seen this once before -the trans /engine harness runs along a double L-brackett just left of the dis...
2006 Dodge Ram 2500 Truck SLT 5.9L MIL Lamp on, Limp mode VIN: 3D7KR28C56
No new info on what the fix is we sent it to the dealership for a new ECM under warranty Trouble codes: P0882 (Trans 12 volt supply relay control circuit low diesel).
1998 Ford F-150 Lariat 4.6L Timing Chain VIN: 1FTDX1764W
thanks to all the techs that replie . I still confused about the timing change copper links do not match the crank marks . but you guys suggest ignore that , and make own marks, yes , tdc cylider N#1 crank marck at 6 camshaft mark on copper links. turn by han...
1999 Ford F-550 Super Duty XL 7.3L Steering VIN: 1FDAF57F7X
First off thanks guys for the quick responses i did replace the steer box and the truck now steers like a ford again(not saying much).I was pretty sure thats what the problem was but its always nice to have a second opinion.THANKS again
2006 Ford F-150 XLT 5.4L Spark Plugs VIN: 1FTPW14VX6
2003 GMC Yukon Denali XL 6.0L Suspension VIN: 1GKFK66U13
Thank you all for your input and information. I ended up installing a used compressor and two rear shock.. everything is working go so far Thanks again
2007 GMC Acadia SLT 3.6L Passenger door and Heated seat VIN: 1GKEV33757
Cleaned ground connecting to the body also disconnected and reconnected all wiring harness going to the door and in the door. After that eveything has been working.
2006 Hyundai Elantra GLS 2.0L master and abs VIN: KMHDN46D96
thanks for the help. after bleeding the breaks and many test drives still has good pedal and returned to costomer.
1999 Jaguar Vanden Plas 4.0L No Start VIN: SAJKX6042X
Sorry it took so long to close this out. We didn't have much time to work on it, but this car is finally fixed. The problem was the 10 amp fuse for power to the injectors. The fuse was actually good, but there was some corrosion on the bottom of the fuse box, ...
2001 Jaguar S-Type 4.0L Heat VIN: SAJDA01PX1
we want express thanks to all who replyed to our request for help. the heater valve near the radiator was at fault and this resolved the problem. thanks again
1993 Jeep Grand Cherokee Laredo 4.0L Starting VIN: 1J4GZ58S0P
Hey yall. just wanted to say Thank you to almost everyone who said ignition coil. it was late and i was not thinking clearly. i tested the coil spark while cranking using a light bulb spark tester [i know its not good] fuel psi while cranking was 45 psi while ...
2008 Land Rover LR2 SE 3.2L Starter VIN: SALFP24N28
Finally got this one fixed. Thanks for all of the replies. So i finally found the relay to the starter(its labeled (SM) in the fuse box) who would have thought. So i wasn't getting signal to start and could crank the engine over by supplying power to the start...
2002 Lexus IS300 3.0L Mechanical VIN: 1G23AR5622
Thanks for all the help. I now have a good understanding of why there are 2 marks on each cam & crank pulley. The cam pulleys are set with the dots on the cover marks & not the second set which are lines. The crank pulley is set when the first mark lines up w...
2004 Mazda 6 i 2.3L pcm VIN: 1YVFP80C54
tired of pulling hair so i swapped motor from donor car and all is well. may have been a timing issue even though i did the timing with the proper tools three times but i cant spend anymore time on it. thanks to everyone who gave it there best.
2005 Mazda MPV ES 3.0L MIL Lamp on VIN: JM3LW28A25
Ok Several days have gone by and no return So indeed the coil was the issue for this code The IDS was very helpfull in this case The misfire was not noteable But was enough to set the code (P0403) Trouble codes: P0493 (EGR Control Circuit).
1989 Mercedes-Benz 190E 2.6 2.6L Poor Idle Quality, Hesitation, Stall VIN: WDBDA29D5K
The fix is in!! Thank you to all who responded, especially Richard [...] for his practical diagnostics with basic shop equipment, but the biggest shout out goes to John from North Carolina who nailed it. Some time...
1989 Mercedes-Benz 300E 3.0L Poor Idle Quality, Hesitation, Surge, Misfire VIN: WDBEA30DXK
I decided to look a little closer to the oxygen sensor. Found the wiring corroded at the connector. Removed the oxygen sensor and the wire broke off. Replaced the oxygen sensor and vehicle runs great! Thanks for all the help!!!
2007 Saab 9-3 2.0T 2.0L key fob will not turn VIN: YS3FD46Y67
Thanks to all. I just purchased a Launch Diagun and used this excellent tool to tap into CIM and found code B1440 code that was described as ISM internal fault. Was then able to force key on, cleared code and started car. Code did come back imediately but was ...
2004 Saturn Vue 2.2L Engine VIN: 5GZCZ23D94
Great advice guys,what I did was replace the engine with a used engine and marked it up $200.00 like Lewis said and gave them credit for the old bill. The customer came in and apologized for getting testy (which I keep my cool)and all is good in mudsville. Als...
1993 Toyota Camry LE 2.2L electric window VIN: 4T1SK12E8P
every thing works a blown 30 amp fuse behind left lower dash panal, ken from new york mentioned relay( helpful) also broken wire in left door post.I think left front window and right rear window were stuck,after removing regulators they worked. thanks to ever...
2000 Volkswagen Beetle GLS 1.8L Stall
I will have to close this post as I am pretty close to iatn time limit and have not had time to get back to this vehicle. I did recieve some good things to check in regards to pcv system and turbo systems. we did not find any issues with these systems and we h... Trouble codes: P1136, P1557.
2004 Volvo S60 2.4 2.4L Strange electrical VIN: YV1RS61TX4
Thanks to everyone for their help. We ended up applying heat to the CEM and DIM, got the DIM to black out and lost communication to the car with VIDA. After cycling the ignition, communication would come back. I replaced the ignition switch but was able to ... Trouble codes: ECM51, ECM92, SRS00.
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