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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 14, 2010
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Open Help Requests for All Makes and Models
Help Request Answers
1995 Acura Legend GS 3.2L Vibration at idle VIN: JH4KA8175S
Hello everyone... Any honda or acura techs... I have a 95 acura legend with a 3.2l manual 6 speed that the customer is complaining about the idle vibration that he feels more when the car is fully warmed up... We have checked ignition system, compression and f...
1998 Audi A4 Quattro 1.8L Hesitation VIN: WAUCB28DXW
The first question I have is more related to my scanner. I am trying to do the throttle acuator relearn and can not find on mitchell the process. If anyone knows the process especially for the Matco Determinator I have the european files. I think I have to ent... Trouble codes: 16507 (tps low voltage), 17952 (throttle actuation signal high), 17953 (throttle valve regulation malfunction), 01274 (air flow flap motor)
2001 BMW 740i 4.4L Rear brakes VIN: WBAGG83401
Vehicle was towed to us from the dealer, customer stated that it needed a rubber brake hose. After inspecting the vehicle I found that one of the rubber brake hoses located right off the ABS unit had burst. We replaced both of the hoses (they both feed the rea...
1998 Buick Century Custom 3.1L MIL Lamp on VIN: 2G4WS52MZW
Tried moving wires, replaced plugs wires and one coil pack that looked cracked, replaced cam sensor, can't find any tsb's any help would be appreciated. car runs great, customer only complains about light going on and off Trouble codes: P0341
1989 Chevrolet K2500 Cheyenne 5.7L Surge, Stall VIN: 1GTGK24K0K
Hi guys, here i have a good old tbi chevy truck, which runs fine when cold, but after warming up just a little engine begins to stumble and eventually stalls. This was bought in by a new customer who is a "parts changer". He has replaced nearly everthing relat...
1992 Chevrolet K1500 Silverado 5.7L Cuts out, Stall VIN: 2GTEK19K6N
truck has an intermittent cut-out, almost like a miss, all the time, but when cold will stall as soon as put in gear. it starts right back up and runs rough and will smooth out and run good except for occasional cut-out.
1997 Chevrolet S10 4.3L 1st Gear VIN: 1GCDT14X7V
Trans seems to start in 2nd or slips when accelerating from stop.Halfway through test drive symptoms went away. Of course shift points and tcc lockup were normal.Trans fuse at inst panel is good. Checked vcm connector for corrosion or backed out terminals and...
1997 Chevrolet K1500 Silverado 5.7L Hesitation, Cuts out, MIL Lamp on VIN: 2GCEK19R1T
this truck came to my shop because when you give it gas it does not rev up it stumbles and cuts out and sometimes dies the cam retard was at 20 degrees when it came in customer told me he replaced the engine and removed the distributor i removed the distributo... Trouble codes: P0171, P0174, P0151, P0131
1997 Chevrolet Tahoe 5.7L 4 wheel drive VIN: 1GNEK13R8V
Before we removed the transmission and transfer case and when I was stopped with the transmission in neutral I pushed the 2 wd and 4 wd button on the dash and it worked fine.I asked the customer if the 4wd buttons always worked and engaged he said yes.I replac...
2001 Chevrolet Silverado 2500 HD 8.1L No Start VIN: 1GCHK29G41
Thanks in advance! This truck has been a proublem for over 3 years. Just doing the relearn worked for a long time at first. Intermetint no starts, securety light flashes while driving. I have read all the closed repairs and I changed the key& tumbler and the h... Trouble codes: B2960, P1631 (Theft det start enable signal not correct), U1064 (u1024-), U1024
2001 Chevrolet Cavalier 2.2L No smoke out of tank VIN: 1G1JC12461
vehicle came with code P0442. I did smoke test found a brokent hose. code is fix. But my cuestion is Y when i was smoking the system no smoke came out of fuel cap. is there some kind of check valve on the hose that goes from canister to tank? If I smoke from t... Trouble codes: P0442
2002 Chevrolet Avalanche 1500 Z71 5.3L Mechanical VIN: 3GNEK13T82
Customer complains of low brake pedal. That was the original complant 25000 miles ago.Took to gm they told him that was normal for that type vechile. Today customer brouht back vechile for noise while driving.I test drove to listen to the noise and the brake p...
2006 Chevrolet Colorado LS 2.8L timing chain VIN: 1GCCS14846
This is a fleet vehicle that has had very good care since new by our shop. Recently it has developed a very loud noise intermittently when being started after a driving then being shut off for a few minutes. Doesn't do it on cold start. The noise is reminiscen...
2006 Chevrolet Malibu Maxx LS 3.5L 1-2 shift VIN: 1G1ZT618X6
Vehicle came in with harsh shift 1st sencond gear. replaced 1-2 shift solonoid, serviced filer and fluid. with no change noticed. cleaned mass air flow sensor, no change. any help would be appreciated. not real trans savy! sorry!
2007 Dodge Ram 2500 SLT 5.9L lacks power VIN: ID7KS28C47
hello. pickup lacks power while driving. cannot verify fuel pressure while problem is occuring, seems like a fuel pump, but seeking any similar concerns, known repairs, diagnostic assistance. thanks in advance. Trouble codes: P0148
1996 Ford F-250 XLT 7.3L No Start
hello. vehicle will lose high pressure oil after running for about twenty minutes high pressure oil will only climb to about two hundred psi have verified icp sensor is good non biased and replace oil pressure regulator with no change in outcome. suspicious of...
1998 Ford Mustang GT 4.6L No Start VIN: 1FAFP45X6W
Hello to all, thanks in advance for any help. This mustang cane in for running poorly. I found the fuel pressures to be under spec, i replaced the fuel pump and preformed motorvac. When motorvacing i left the fuel pump connector disconnected to prevent pump op... Trouble codes: U1147 (Scp data fault for vehicle security)
1999 Ford F-250 XLT 5.4L steering
I have this f250 that every once and awhile the steering gets hard. i was checking the front end over and i noticed that u can move the axles around freely and they have alot of play. i took the 4x4 hub off and noticed that it has some play in the spline. i th...
2000 Ford F-250 Super Duty XLT 7.3L No Start VIN: 1FTNX21F1Y
vehicle ran out of gas and I can't get it to prime can't find any bleeding procedures in alldata. thanks for any help
2005 Ford F-250 Super Duty XLT 6.0L High Pressure Oil System VIN: 1FTSX20P95
Truck ran fine, but engine oil cooler was leaking. Disassembled and replaced oil cooler and seals, changed engine oil and filter at the same time. Insides of the engine look as-new. After reassembling everything, the engine started up and ran fine. Temperature...
2005 Ford Escape Limited 3.0L noise VIN: 1FMYU93145
SUV has poping(popcorn)sound at idle only.All data looks good.Fuel pressure is good.Take engine off idle and noise goes away does not return until idle is back.Have replaced IAC motor and engine controler with brand new one from ford.This was done with advise ...
2006 Ford Ranger XLT 4.0L Hesitation, Cuts out, no power above 3,000 VIN: 1FTZR45E46
Vehicle loses power at 3,000 rpm, engine sounds like its up against a rev. limiter...hunting and surging...i know ive seen this before, but i cant remember what it was..lol im not getting any codes, however i am seeing a rich condition when i try to rev the en...
1993 Honda Accord LX 2.2L Mechanical VIN: 1HGCB715XP
This veh; was driven in to me with a idle problem on start up rpm go to 2300 and then they hasitigt from 1500 to 2500 and after engine warms up its 1200 to 1900.i have check idle control at intake good no vacumm leaks .checked wiring all looks good and test go...
1997 Honda CR-V LX 2.0L Cuts out, Stall VIN: JHLRD1853V
First time customer with no previous repair history from our shop. Complains of vehicle stalling/cutting out while at idle or during coming to a stop. Happened twice in the day after she had driven it for 30 min. Second time it stalled she said it was hard to ...
2004 Hyundai Santa Fe GLS 3.5L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: KM8SC13E64
Hello to all techs--- i got thrown into the middle of this mess and need some help. The tech working on this vehicle just threw a bunch of parts at this truck and didn't fix a thing! it originally came in with a high idle and stalling condition with codes---p... Trouble codes: P1118 (Throttle control), P1178 (Throttle control)
2001 Jaguar S-Type 3.0L converter VIN: SAJDA01C41
Ok guys thanks in advance.This one is acting like the lock up selenoid is bad but havent been able to find one on it.The wierd thing is that it only stalls the car in drive it will run normal in reverse.But if you put it in drive with the brake pressed it will...
2004 Jaguar X-Type 3.0L hydrolic VIN: SAJEA51C24
This car came to me from another shop they put brakes all around and the rear calipers the calipers were off the car for a long time and drained the system down. Now it is not getting fluid out the right rear or the left front. It will det fluid at times. I gr...
1996 Jeep Grand Cherokee Laredo 4.0L No Start VIN: 1J4GZ58S9T
Thanks in advance.Customer brought vehicle in Monday.He complain vehicle somtimes would buck coming up hills.Also at times vehicle will not start.I test drove vehicle and it ran fine.Brought it into shop and hook up fuel pressure gauge [48psi].Now vehicle won`...
1999 Jeep Grand Cherokee Laredo 4.0L cranks no start VIN: 1J4GW58S4X
This one's got me stumped! Jeep was towed in for a no start...it started and ran fine..after running for a while then shutting it off..it will not restart. I turns over but acts like an engine that has the timming way too advanced.Battery is new and good, no t...
2000 Jeep Grand Cherokee Limited 4.7L Heater VIN: 1J4GW558N4
What a pain, this jeep came in no heater, the blemd doors were broken replaced and rhought we were done, we still had no heat, heater hoses are reaching 135 degrees, vent temp 100, water pump was leaking put a new pump on, new thermo,flushed the whole system, ...
2004 Lexus ES330 3.3L MIL Lamp on VIN: JTHBA30G44
Check engine sign lights on with TRAC OFF and VSC sign. I could not find any TSB and cases at iATN. Can I just replace the TPS? The TPS looks mounted with revets to the throttle body. I hope to get pin point solution. Thanks in advance. Trouble codes: P2121 (Throttle Pedal Position Sensor/Switch D Circuit Range/Performance), P2128 (Throttle/Pedal Position Sensor/Switch E Circuit High Input)
2003 Mazda Protege ES 2.0L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: KMHCF93U12
po 172 check on and intermitent idle ruff see above Trouble codes: P00, 172 (systeme too rich)
2008 Mazda Tribute S 3.0L compressor
Hi fellow mazda techs and hopefully a few ford techs. I've got 2008 Tibute 6 cyl with no ac compressor function. When scanned I get two u codes for no communication to the FICM module and the IC. (Sorry i am writing this from home if needed I can ad code numbe...
1995 Mercedes-Benz S420 4.2L Battery VIN: WDBGA43E9S
Hi everyone. Thanks in advance for your input. We have an elusive battery drain problem on this Mercedes. We first checked out the drain about 10 months ago. The car had some central locking issues and an intermittent, slow battery drain. We ended up having t...
1995 Mercedes-Benz S320 LWB 3.2L battery VIN: WDBGA32E1S
car came in with a dead bat. Charged and tested bad, replaced bat. Sytem charges fine. Has major draw. kills bat over night. Have removed all fuses in power dist box under hood, and in trunk, unplugged relays in trunk, unplugged three mods in trunk along with ...
2000 Mercedes-Benz CL500 5.0L Ridecontrol VIN: WDBPJ75J6Y
ABC light on dash is on. Customer went to dealer first and was told to replace the ABC pump and two accumulators. We replaced the ABC pump. The car operated fine and rode level. After a few days, the car started leaning to the right. We replaced one accumulato...
2002 Nissan Maxima SE 3.5L clattering under lite load VIN: JN1DA31D72
i have a nissan maxima that after the car warms up it will have a clattering noise under lite loads. in bay snap throttle test is fine or half to full throttle while driving is fine. only at cruising or a little throttle does it like spark clatter with no code...
1997 Pontiac Sunfire SE 2.2L passlock/cluster VIN: 1G2JB1248V
Back in February we had a huge blizzard. Hit a pothole and lost all gauges except for speedometer and fuel gauge. Almost all idiot lights on. Few months later CEL comes on, gets cleared (P0325) and then won't stay running. It's acting just like passlock (runs ...
2000 Pontiac Grand Prix GTP 3.8L Poor Fuel Economy VIN: 1G2WR5218Y
please help. i just bought this vehicle a couple of months ago. i bought it with no idler pulley and belt for the blower. replaced both at about 78,000 miles. now new pulley has broke and smoked the belt 3,000 miles later. does anyone know if there is a tsb fo...
2001 Pontiac Aztek 3.4L a/c VIN: 3G7DA03E01
hey everybody!i had this new costumer with the mil on at his car,he had a whole bunch of codes so i recomend to do the basic stuff first wich was a tuneup,after that carstart running beautiful and the owner happy.so i told him:ok i reset the light for now but ...
2004 Pontiac Grand Am SE1 3.4L Compressor VIN: 1GNF52E34M
Vehicle came in due to a/c was not working checked for codes had one code 645 compressor clutch coil circiut malfunction,checked clearance of the clutch and replaced compressor,vehicle was blowing fuse number 37 and after replacing compressor problem appears t...
1999 Saab 9-3 2.0L No Start VIN: YS3DD58N7X
Fuel pump fuse. vehicle will not start, has spark and injector pulse but no fuel pressure. pump will not run, found fuse 32 for fuel pump to have no power in either side of block. even with powering up noth sides with power probe vehicle will not start. all da...
2003 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH67583
good morning subaru techs, I have a good one this morning. this vehicle came to me with a "runs really bad" complaint and engine light on. I couldn't even make it out of our lot before I turned around. scanned and found codes listed but it idles perfect. idle ... Trouble codes: P0301 (Cylinder 1 misfire), P0302 (Cylinder 2 misfire), P0303 (Cylinder 3 misfire), P0304 (Cylinder 4 misfire)
1997 Toyota Corolla DX 1.6L Cuts out VIN: 1NXBA02E7V
This one is for the records. I think IATN is a great network and just wanted to put this one in the records. This car came in after it had been to numerous shops with a no fix. Well I don't believe in "No Fix" if others cant fix it, bring it to me. The problem...
2003 Toyota 4Runner Limited 4.0L abs VIN: JTEZU17R03
Codes c0205 & c1223 - no wheel speed signal from lf wheel - problem has been in vehicle for almost 2 years per customer - has been at toyota dealer without being fixed - the repair information or description from both alldata or identifix doesn't explain how t...
2006 Volkswagen Beetle 2.5 2.5L A/C Comp Control VIN: 3VWRW31C36
We have no compressor output. The compressor does pump when the control valve is grounded. There is no pwm signal at compressor. The transducer has 13v in and 3.42 volts reference. We have battery voltage at input side of control valve. Had a code b2612 when i...
2006 Volkswagen Jetta TDI 1.9L cam sensor VIN: 3VWST71K06
Vehicle is a No start; showing p0726 cam sensor not a plausable signal. Replaced cam sensor problem still there. Unplug crank senor and vehicle will start and run. Checking codes while running it will set a cam sensor code and a crank sensor code. Cleared code...
2001 Volvo V70 2.4L Oil pressure light VIN: YV1SW61R91
This problem started out intermittently (for months) and has gone full time now. The oil light stays on and the display says no oil pressure stop car! The engine HAS good oil pressure. This is NOT an engine problem. The oil warning stays on when the PCM is re...
2003 Volvo S40 1.9L MIL Lamp on VIN: YV1VS27593
Hey just wanted to ask, we have this S40 and under hard acceleration check engine light comes on, only happens when you really romp on the accelerator. scanned system and found code P0299- Turbo Underboost, cannot find any diag info for this code, car runs gre... Trouble codes: P0299 (Turbo Underboost)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1983 BMW 533i 3.2L Poor Idle Quality, Surge VIN: WDADB7400D
Thanks to everybody that replied. I had some really good ideas. Luckily that car hasn't come back to the shop, maybe it fixed itself.. so I can rest my mind for now. I did run some tests like checking the resistance for the coolant temp sensor @ the computer, ...
1998 Buick Regal LS 3.8L Pedal VIN: 2G4WB52K4W
As per many suggestions I pulled my head out of my butt and pulled the rear rotors and checked them over closely. Found that the car had been parked for along time somewhere in its life and where the rotors and pads met had rusted very deep pits in one rotor. ...
2000 Cadillac DeVille DTS 4.6L gearshift VIN: 1G6KF5799Y
Thanks for the help...we found a wire pinched when putting the dash back after the blend door repair.
2002 Chevrolet Corvette 5.7L MIL Lamp on VIN: 1G1YY32G72
Thanks for all the help, turned out to be a vacuum line under the battery box/ hidden in a loon, ws rotted throught by battery acid, Might be a good place to start looking if ou run into this code. The strange thing is that when that line was first checkes it ... Trouble codes: P0410 (Secondary air system).
2006 Chevrolet Corvette 6.0L mesage center VIN: 1G1YY26U87
thanks for all who replied,removed a/c condensor and that fixed the a/c no effect on service vehicle soon light.in the process I noticed a disconected wires close to rack and pinion,( yes when you are frustrated you ask GOD please this be the problem)and that ...
2005 Chrysler Pacifica Touring 3.5L Electronic VIN: 2C4GF684X5
car finally gave up some codes, replaced RF wheel speed sensor, customer says ok
1997 Dodge Dakota Sport 5.2L Poor Idle Quality, Misfire VIN: 1B7GL23Y7V
Problem is now fixed. Resealed intake manifold due to oil residue in base and replaced fuel pump. Removed valve covers to inspect springs. Valve train was perfect. Exhaust was still running lean and misfiring. Smell was so bad you could not breath. Inspected O...
2000 Dodge Durango 4.7L Reverse VIN: 1B4HS28NXY
Thanks for the input. it was a dumb mistake on my part. I went on to something else while I was going through the valve body and the switching valve fell out. I put it back in and now have reverse.
2004 Dodge Sprinter 2500 2.7L Hesitation, Cuts out, Stall VIN: WD2BD14364
I feel stupid on this one. I checked all the sugestions I received and none helped the problem. I then had to take some time off and another tech was handed this pain. His first step with every diesel he looks at is replace fuel filter.(lots of problems with d...
1990 Ford Ranger Custom 2.3L engine VIN: 1FTCR10A0L
For all that helped, I really appriciate the help from all. The problem ended up being 2 clogged fuel injectors. I had compression, timing, spark, and fuel. That's why I was so stuck. After I sprayed starting fluid in durring it running and it smoothing out, I...
1999 Ford F-350 Super Duty XL 6.8L vibration VIN: 1FTWW33S3X
This is not fixed. The customer has taken the Truck back everyday. I want to fix this rig. But I just don't have the truck long enough to get a handle on the problem. I we have improved the vibration by changing the brake pads. I think the rest of the vib...
1999 Ford F-250 Super Duty XL 7.3L no turbo boost VIN: 1FTNX21FXX
Turbo locked up finally and made this issue fairly obvious. thanks for the help. Trouble codes: P0478, P0475, P0473, P0470.
1999 Ford Mustang SVT Cobra 4.6L Cuts out, Stall, MIL Lamp on VIN: 1FAFP46V3X
I found a burnt three pin connector under the airbox. Replaced the connector and drove fifty mile and no problems. Thanks for all the replies. Trouble codes: P1233.
2003 Ford Taurus SE 3.0L horn VIN: 1FAFP55273
Just wanted to thank every one who replied to my request. The cruse control servo was disconected. Once again thank you for your time.
2000 Jaguar S-Type 4.0L 3-4 Shift VIN: D7YGL04723
Thanks all for the info. I replaced the valve body!!!It shifts like brand new.Thanks again. Jack
2001 Jaguar S-Type 3.0L temperature gauge VIN: SAJDA01N21
the customer is still driving the car,i think the car is not fixed yet, but the customer has not come back yet,i thank you for all the help you offer me.Thanks to all of you great techs out there.
1998 Lexus ES300 3.0L Hesitation VIN: JT8BF28G4W
1999 Lexus RX300 3.0L MIL Lamp on VIN: JT6HF10U5X
All replies point to the same thing, use an OEM coil for these COP systems. The coil is on order and I consider the case closed. Thanks! Trouble codes: P0132.
2003 Mazda MPV LS 3.0L Mechanical VIN: JM3LW28A43
thanks to everyone that replied. for rear heater problem pinched lines to front heater core closed and forced coolant to rear core worked great. as for oil light removed pan and found piece of oil pan gasket had come off the metal skeleton of gasket and parti...
1998 Mercedes-Benz CL600 6.0L Poor Fuel Economy, MIL Lamp on VIN: WDB1400761
The vehicle is fixed thanks for all the help it was the modis scanner giving us the wrong information again we used a oem scanner on it and the 02 sensor reading were good and looks like the banks were backward on the modis,we found that the timing was off on ... Trouble codes: P0133 (Right O2 sensor slow response), P0153 (Left O2 Sensor slow response).
2006 Mitsubishi Lancer Evolution MR 2.0L transfer case VIN: JA3AH86C66
Thanks All. Everyone but me seemed to know that you have to pull the axle stub shaft out the drivers side first, then the transfer case just about falls off. I did save a bit of time and mess by leaving the rack in the car. After removing the K member I tied ...
2000 Nissan Maxima GLE 3.0L Poor Idle Quality, Surge VIN: JN1CA31D3Y
Sorry guys but i thought request had already been closed. hadn't cked my email in awhile and found out this morning it was still open. I apologize for this greatly. the idle surge ended up being in the throttle body itself. we tried cleaning and relearn proced...
1989 Oldsmobile Cutlass Ciera 2.8L No Start, Stall VIN: 2G3AJ51W2K
this one is fixed!!! found #5 inj shorted . replaced with reman only thing avail . now it runs fine thanks for all the help ,i would not have thought 1 ijn could have caused that type of problem.you learn new things every day ,thanks again very helpfull
1987 Porsche 924 S 2.5L drivetrain VIN: WPOAA0921H
Thx Guy's, Al;l your responces solidified what I already knew.as well as you all did!1!. however I did locate agood used one for 400.00 I bought it and am waiting for the time to get to this puff autimatic.Thx again guy's for your responces.Chuck S.
2000 Rover Range Rover 4.6L No Start VIN: SALFV1040Y
Thank you for all the information, too bad that no body individual shops that have Autologic, T4 etc..Dealership wants me to bring in and they put new ECU & coding, cost fortune,I will tell customer to bring in to Dealership. Thanks everyone.
2005 Suzuki Verona EX 2.5L transmission VIN: KL5VJ56L35
Thanks to James, Richard and Richard. They pretty much confirmed what I suspected. Though I couldn't duplicate the customers complaint I did duplicate a "garbled display" one time when moving the shifter around. The dealer also told us they sell "A LOT" of the...
2005 Toyota Sienna LE 3.3L Mechanical VIN: 5TDZA23C25
Well, my diagnosis of the variable valve timing unit making the noise was correct, however not for the reasons I had originally thought. This vehicle has a hydraulic variable valve timing unit. I was able to find a very good description of the way the VVT uni...
2001 Volkswagen Jetta GLX 2.8L MIL Lamp on VIN: 3VWTG69M51
2004 Volkswagen Passat GLX 4 Motion 2.8L Master Cylinder VIN: WVWTH63BX4
OK, I had a tech tell me years ago, CHECK THE BASICS first. I did what most of you said and that was isolate the calipers and when I did isolate the rear brakes especially the right rear I had a good pedal. On closer inspection I found the inner pad was froze ...
2006 Volvo XC90 2.5T 2.5L MIL Lamp on VIN: YV4CY592X6
One key point to consider was the status message indicated that the signal for the rear O2 sensor was MISSING. So I followed the logic in Bruce's first message. I removed the ECM to access the wiring on the top end. I checked the continuity of the signal wires... Trouble codes: ECM22, ECM22.
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