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Prev Professional Automotive Repair Technical Discussions for September 1, 2011
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Help Request Answers
1996 Acura TL 2.5L Poor Idle Quality, Surge, Cuts out, Misfire, MIL Lamp on VIN: JH4UA2659T
No power on road sounds like popping back maf. O2 shows rich .9. Plugs fouled. O2 not sooted up. Tried new one, no help. Changed plugs, tried new maf, no help. Powers and grds at ecm ok. Exhaust unresricted. Secondary waveform ok. Injector waveform ok, 30 ms o... Trouble codes: P0300 (p0141-), P0141 (testing and results)
2004 Audi A4 Quattro 3.0L power steering VIN: WAUDT48H44
Car came in with very noisy power steering pump. Found excessive flow at resovoir causing fluid to airate and cause the noise. Replace pump performed bleeding procedure and still noisy with a lot of flow at vent in cap. Also sometimes causes fluid to escape ou...
1997 BMW 528i 2.8L no time clock VIN: WBADD6324V
Hi bmw tech. I have this 1997 528i that I cant put the time clock in time because when I tuch the clock button on the radio display no change and I use diferent radio display and same no clock I check all the fuses and all fuses are ok I know I can't comunicat...
1999 BMW 540i 4.4L Unknown VIN: WBADE5329W
Looking for some guidence... when engine is hot, oil pressure warning light comes on only at idle. as soon as you touch the throttle to raise the RPM's, the warning light disappears. The car is running OE BMW 5w/30 oil. We installed a new oil pressure sensor (...
2001 BMW 525i 2.5L No Start VIN: WBADS43401
Hi Techs, This 525i wagon was towed in with a crank/no start. Road service tried jump start - wouldn't start. Scanned for codes - no codes but I don't know how long battery was dead or if someone else checked this before us and cleared codes - readiness monit...
2002 BMW 745Li 4.4L Poor Idle Quality VIN: WBAGL63452
After installing expandable cooling pipe,which repair worked out great,and valve cover gaskets and spark plug cones to prevent oil intrusion into plug wells I have a shaky idle hot or cold makes no differance.Spark plugs are new.Engine mounts are new.Crankcase...
2007 BMW 328i 3.0L Compressor VIN: WBAWV53537
The car came in with the A/C not cooling. The customer said that the a/c was working fine and then just stopped blowing cool air. Everything else in the a/c system works fine. There is no power at the connecter (X6011 pin #1) under the hood with the a/c on. If...
2000 Buick LeSabre Limited 3.8L lifter noise VIN: F123456689
Have lifter noise on number 5 cylinder. No codes stored. Recommended replacement engine either rebuild or used. Asked if lifters can be replaced. Typically we either scrap the engines or replace. Have not done a lifter job on one of these 3.8ls. Question is: i...
1998 Cadillac DeVille Concours 4.6L Poor Idle Quality, Surge, MIL Lamp on VIN: 1G6KF5491W
i ran test for icm wiring all passed replaced icm no change in code surges at idle and intermittent code for pcm memory code any help would be great Trouble codes: P1376
1994 Chevrolet C2500 Silverado 6.5L No Start, Stall VIN: 1GCGC29FXR
Good Morning All, i got this truck in been to everybody with same problem. Will just stall sometime restart others times after it sits for a few minutes. Its had four injector pumps replaced, alll glow plugs, fuel lift pump. I found 7.5 volts at the fuel lift ...
2001 Chevrolet Tracker 2.0L Mechanical VIN: 2CNBJ13C81
After replacement of the front pads rotors,calipers brake hoses load sensitive proportioning valve and master cylinder. i cannot get brake fluid to flow up to the front wheels or any type of pedel. i was wondering if anybody could shed some light on what i am ...
2002 Chevrolet Trailblazer EXT LT 4.2L Engine VIN: 1GNDT13S12
This vehicle was towed in off the tollway today. Was running along and just quit. No start with a jump from help team. We installed a battery while charging the dead one. Engine barly turns over, all fluids are full,doesnt appear to have over heated. Pulled pl...
2003 Chevrolet Trailblazer LT 4.2L rear blower VIN: 1GNET16S43
Rear blower motor does not engage when first commanded on. After a delay (time varies) will work properly and can be turned off/on with no problems. After vehicle sits for a short time delay will occur again. We have replaced blower resistor and now tech want ...
2005 Chevrolet Aveo LS 1.6L Hesitation, Cuts out, Stall VIN: KL1TD62665
Car came in with complaint of stalling on acceleration from stops, after engine is hot and has been heat-soaked. Several test-drive cycles consisted of driving until at operating temperature, shutting off for ten minutes, then starting and driving again. Accel...
2006 Chevrolet Silverado 1500 LS 4.3L Cuts out VIN: 1GTEC19X76
Cam retard is showin 1436 Degrees. Knock at 0 degree. Will idle for a few then dies. will start back up. Cap rotor fine. wires fine. Fuel pressure fine. Did cam relearn then cam retard at 0 degree. after a few minutes died and went right 1436 degrees... any id... Trouble codes: P0449
2008 Chevrolet Silverado 1500 LT 5.3L abs VIN: 2GCEK13388
Greeting iatn techs. Got this Chevrolet Silverado that has come in with the complaints of ABS light on, Trac Lite on, Service Trailer Brakes light on, Service Traction System light on. When brought in, found codes C0561 in Trailer brake controller module, and ...
2005 Chrysler Sebring 2.4L Poor Idle Quality, MIL Lamp on VIN: 1C3EL46J95
Any Chrysler Techs out there please help with this problem.I installed a new iac motor and i am able to bidirectional control it with the shops Modis scanner.I can raise the idle speed from 900 rpms to 1500 rpms with the scanner.I looked for a misrouted pcv ho... Trouble codes: P0507
2005 Chrysler Pacifica 3.5L Misfire, MIL Lamp on VIN: 2C4GM68415
This car only codes when it has been run about twenty miles as soon as it downshifts into passing gear with heavy acceleration. I have been all over the wiring looking for shorts or bad grounds. Can not find any. This one has me puzzled any help would be great... Trouble codes: P0339, P0300
2006 Chrysler PT Cruiser Touring 2.4L Charging/Battery VIN: 3A4FY58B66
Customer brought me this one in and it has me confused. I don't want to start tossing parts at it because that is going to become expensive very quickly! This Cruiser has a strange no-charge condition. When you first start the car, it charges fine, however, a...
2000 Dodge Ram 2500 Truck 5.9L Steering VIN: 1B7KC2366Y
Hi everyone, truck came in leaks P/S fluid at hydroboost, piece of cake right, I replaced hydrobosster, bled system as instruction procedure, has poor power steering & brake pedal is kind little hard not normal, so I replace P/S pump & gear box, hopefully that...
2003 Dodge Ram 3500 Truck 5.9L axle flange VIN: 3D7MU46C54
Hey folKs, We have this truck thats eating left rear axle flange gaskets. This truck is a dually and goes off road alot. We changed the hub and axle and installed new seals from the dealer. We tourqued the flange bolts as specified 95 foot pounds. Has any one ...
1998 Ford Explorer Eddie Bauer 4.0L Hesitation, Cuts out, Stall, Poor Fuel Economy VIN: 1FMZU32EBW
Vehicle has hesitation & stalls, no check engine light. Found one problem w/ T-stat replaced it and now temp is fine, but vehicle still hesitates & stalls. I have looked for wire damage found none, looked for vac leaks and found none. All Fuel trims stuck at -...
2003 Ford Mustang 3.8L Noise At Throw Out Bearing VIN: 1FAFP40453
this my first lookat the mustang, i want to fix it right this time , could it be crankshaft end play ???
2003 Ford F-350 Super Duty Lariat 7.3L autolamps VIN: 1FTSW31P63
i have this truck in the shop for inop autolamps the main light swicth and photocell were changed by another shop i checked all the fuses they were ok alldata was saying there is a gem module but of coarse its wrong i am not sure where the relays for the syste...
2004 Ford Escape XLS 3.0L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1FMCU02114
customer droped off car with a note saying his wife had a egr valve installed yesterday (old valve on the floor) started engine and heard hissing from engine opened hood and found egr valve has a hole in the side like there was an explosion big chunk of metal ...
2005 Ford E-250 5.4L MIL Lamp on VIN: 1FTNE24L95
This van came in with a misfire code and was skipping on cylinder 1. I replaced the coil and the plug. Came back after a few miles skipping again. The new coil had melted through the side and caused a misfire again. I replaced it again. Did the same thing and ... Trouble codes: P0351 (Ignition circuit malfunction cyl 1)
2005 Ford Escape XLT 3.0L #4 coil driver VIN: 1FMCU931X5
Do I need to program a used ECM if it comes with the keys
2007 Ford F-150 FX4 5.4L MIL Lamp on VIN: 1FTPW14V97
engine lite on computor check found po171 and po174 codes both banks lean checked wiring found no problems ---checked for vbacuum leaks installed smook machine foumnd no vacuum leaks. the only thing that i had a question about is that they installed an after m... Trouble codes: P0171, P0174
2007 Ford E-150 XLT 5.4L Mechanical VIN: 1FTPW14V87
Vehicle was brought into the shop with a ticking noise at the left rear of the engine. The noise starts as soon as there is a little temperature in the engine, within a couple of minutes from a cold start. We removed the left valve cover and inspected the foll...
2003 GMC Safari 4.3L brake light fuse, no high mouth brake light VIN: 1GKDM19X43
hi all, this van came in with no brake lights, blows fuse whenever pedal is pressed, changed brake light switch and signal switch with no change, also has no high mount brake light, replaced fuse with breaker and it gets hots but works long enough to see that ...
2004 Honda Accord EX 3.0L A/C Clutch VIN: 1HGCM66554
With scaner on car a/c comand is good all fuses good.Checked for voltage and grounds at relay found 4.0 volts on the ground line from pcm. I feel the pcm has gone out any help would be great.Can power up a/c compressor and it works good.
2009 Hyundai Santa Fe GLS 2.7L Surge, MIL Lamp on VIN: 5NMSG73D39
The has lean at idle codes. No vac leaks found with smoke tester. LTFT readings are +10% in generic obd data. Hyundai data on Verus scanner says LTFT is +1%. Cannot find any issues. Replaced collapsed pcv hose last time it was in. Trouble codes: P2187, P2189
1998 Jaguar XK8 4.0L Poor Idle Quality, Hesitation, Surge, Stall VIN: SAJGX2240W
Car came in running decent could have been better, but was not acting up. Customers complaints are engine failure mode warning on, traction control failure warning message, and runnung rough / dieing out(stall) after about 10 minutes run time.Car has also stal... Trouble codes: P1260, P1571, P1252
2005 Jeep Grand Cherokee Limited 5.7L front differential VIN: 1J4HR58275
customer brought vehicle in complaining of vibration on turns not while going strait.I roadtested and if you turn the sharper you turn the worse it gets.My 1st thought was posi chatter which I have seen in the past.But this thing is bad.They came from michigan...
2000 Kia Sportage 2.0L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: KNDJA7234Y
Cannot duplicate problem have droven for hours with scan tool connected. Will almost leave customer stranded. Customer complains of stalling issue, hesitation and hi idle at times. Only comuter code is a p0101 mass air flow sensor code. Sensor was replaced by ... Trouble codes: P0101 (Mass air flow circuit performance problem)
2004 Land Rover Range Rover HSE 4.4L Alignment VIN: SALME11434
Hello, I working on a 2004 Range Rover Hse and wanted to know if there are any special procedure to perform before you can perform an alignment. Does the Suspension need to be de-activated or do you need factory scan tool to put the vehicle into an alignment m...
1996 Lexus LX450 4.5L Steering VIN: JT6HJ88J4T
Vehicle originally came in for repair of a poor steering assist condition, it was found to have a bad pump, at this time pump and reservoir were replaced and vehicle tested good, vehicle was returned to customer. Customer returned two weeks later with a compla...
2004 Lexus RX330 3.3L MIL Lamp on VIN: JTJHA31U64
Hi! We have a recurring P0453 and need some assistance to correctly diagnose this please? Thanks! Trouble codes: P0453 (Evaporative Emission Control System Pressure SensorSwitch High Input)
2004 Lincoln Navigator 5.4L ride control VIN: 5LMFU28R64
hi folks!i have this navigator that was "sitting" on the floor due to a bad pump.ordered a new one from ford and everything is fine except if go for a ride and sometimes it shows:check suspension on display messages.went back to the shop to scan it and shows u...
1994 Mazda Miata 1.8L belts VIN: JM1NA3538R
At cold start up, the drive belts squeel. With the belts removed there is no noise whatsoever. After the car runs for a few minutes the noise will cease and not return until it sits for a while. Have tried Gates and Dayco belts. Mazda belts are on the way but ...
2001 Mercedes-Benz S430 4.3L Door closing assist VIN: WDBNG70J11
Dear fellow MB mechanics, car came in with bad igntion switch EIS, replace the switch with new one from MB dealer ,I went through the whole procedure with my MB Star dignostic equipment, but I can not make the closing door assist in all doors to work , rear se...
2003 Mercedes-Benz S500 5.0L door closure VIN: WDBNG75J13
all doors and Locks working no codes in central locking Module, Code B1193 in LF door module, cleared and still INOP. any help?
1987 Nissan Stanza GXE 2.0L Cuts out, Stall VIN: JN1HT2114H
This car has been intermittently stalling with a no restart until it cools down about an hour or overnight. Every time I have gone out to check it it restarts. many times it would restart after dieing. months later it is finally getting consistant and I have f...
2003 Nissan Pathfinder SE 3.5L Won't Accelerate VIN: JN8DR09Y93
Having said all of what is listed in the Related Repair History, I want to say the Customers Wife came out of work 2 weeks ago, started Truck & it wouldn't go over 5mph (No Throttle Response). She let it sit probably less than 1/2 hour, husband came & tried it... Trouble codes: P1121 (Electric Throttle Control Actuator)
2009 Nissan Altima S 2.5L unknown VIN: 1N4AL21EX9
Hello, I have this Nissan Altima that makes a loud snapping type noise or a single pop type noise within the first minute of an initial start up cold. Only does it one time and wont do it the rest of the day. It does not matter whether your in park or drive, I...
2001 Volkswagen Jetta GL 2.0L Shifting VIN: 3VWSK69M51
This car shifts ok cold, As it starts to warm up the shifting changes. Sometimes it is delayed slightly, other times it is very delayed. It has had times where it neutralizes even with the shifter in D. On the vag com scanner when it neutralized the driving mo...
2005 Volkswagen Beetle GLS 1.8L overheat VIN: 3VWCD31Y05
Car came in overheating with platis housing leaking. Fixed that and put a t-state. Still runs hot put water pump and raidtior.. car doesnt have a gauge but with snap on solus can read temp and goes to as high as 258. Dont know where to go from here maybe air b...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Audi A4 Quattro 2.8L Excessive Emissions, MIL Lamp on VIN: WAUED28D7X
Well this one still needs more attention. Found a split in one of the air injection lines that attach to the air pump. Cleared codes ran monitors and passed. Drove the car for one week and passed readiness test every time. Customer called and said the light c... Trouble codes: P0411 (Secondary aire injection incorrect flow).
2008 BMW 535xi 3.0L clock VIN: WBANV93558
This car was a learning experience. What if found on my own and through members help was that anytime the battery is replaced it must be registered with a capable scan tool. We did that and the clock seems ok for now. The suggestions that registering the batte...
1995 Buick LeSabre Custom 3.8L No Start, Stall, MIL Lamp on VIN: 1G4HP52L8S
I say it is fixed. It was the PCM. Thanks for all the replies. I drove this car several times after replacing the PCM and even drove it home last night. I canít prove the IC module is what caused it to fail but I will call it "a person of interest" in this ca... Trouble codes: P0341 (Cam/crank error).
1995 Chevrolet K1500 5.7L Camshaft VIN: Y6YD222535
Ok did the test drive... WOW pulled boat like it wasnt there. Was behind a dodge pick up, newer style, pulling a boat that was about 800lbs more. I decided to follow up hill. Then decided to pass going up hill. No problem. Trailer and boat about 4500lbs. I do ...
1999 Chevrolet P30 5.7L Mechanical VIN: 1GBHP32R1X
We put both front hose on and the driver is happy with the fix so thanks to all for the help.
2003 Chevrolet Silverado 2500 6.0L No Start VIN: 1GBJK39113
Thanks to all who replied, I will close this without a fix for now. I inspected the fuel lines and thought they were leaking-nope the aux. fuel tank mounted in the bed was though-aargh. Did not see any problem with the filter or houseing. Sent the truck to a l... Trouble codes: P1093, U1024.
2004 Chevrolet Malibu LS 3.5L handling VIN: 1G1Z552F64
thanks too all who responded i am afraid i have egg on my face this time it was a looose rear tie rod bolt thanks again
2005 Chevrolet Uplander LS 3.5L No Start, Serv vtd light on VIN: 1GNDV03L25
Ok sorry for the delay in closing just making sure it was fixed.After speaking with the customer a few times she happened to mention she left her key in her husbands van the night before and she had to use a "spare" key they had made at a harware store (they a...
2001 Chrysler 300M 3.5L Excessive Emissions, Misfire, MIL Lamp on VIN: 2C3HE66G41
We were unable to find any shorts in the wiring harness. Due to the fact that the customer wanted the vehicle back we opted to run another wire to the injector. No more problems at this point. Thanks for the input. Trouble codes: P0201 (Cylinder 1 Injector Circuit), P0301 (Cylinder 1 Misfire Detected).
1999 Dodge Ram 1500 Truck 5.2L No communcation VIN: 387HC13Y9X
Thanks for the responses. The scan tool was the problem. Snap on scan tool didn't work on this truck but it would work with the other scan tools. Thanks for everything!
2005 Dodge Ram 3500 Truck SLT 5.9L Temp Air Distribution A/C And Rear Window Defoger VIN: 3D7MS48C55
thank you to ed "aps" is adjustable peddel system. 3 dealers all data help line had no clue what it was. and since my truck does not have aps it was not an issue. i did try the reset and the modis would not comunicate with climate controll all wires and sensor...
1976 Ford Mustang II Ghia 2.8L Cooling VIN: F123456689
Thanks for all the tips and help. Turns out that the radiator is bad, like real bad. Never had one like this. Replaced the water pump with the newer impeller design. Replaced the Tstat with the correct 185 degree. Thanks for the tip on drilling the air hole in...
2000 Ford Ranger XLT 4.0L Block VIN: 1FTZR15XXY
Thanks for your feedback. All but 2 replies confirmed what I was already leaning towards: Chunk this one and start over with a rebuildable specimen. I took a crude cyl. wall measurement with a disc brake mic. thru one of the core plug holes and it was .180". S...
2001 Ford Escape XLS 3.0L MIL Lamp on VIN: 1FMYU02141
heloo, thanksmto all that replied. found damaged harness just below vac control sol. purple wire was broken down inside harness too. aybe they should have left a little slack in it? Trouble codes: P1409.
2004 Ford Explorer XLT 4.0L No Start VIN: 1FMZU73K54
Removed valve covers and found timing chain had jumped and resulted in bent exhaust valves. Replaced engine. Thanks to all who responded. Your replies were right on.
2005 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTSF21P45
thanks to all who replied.this thing is fixed.I replaced the ficm module and had flashed.Fired up first crank like nothing was ever wrong.I guess my only resevation on replacing the ficm was according to the customer it was running before it was parked. Trouble codes: P0611.
1997 GMC Savana 2500 5.7L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 1GTGG29R0V
First off, thanks to everyone for your input! After checking and re-checking everything, I finally found that the dist. cap was cross arching between cyl. 2 and 8, I had tested the cap before, but I must not have had a good connection when I checked those two... Trouble codes: P0151 (O2 sensor circuit low voltage bank 2 sensor 1).
2005 GMC Sierra 2500 HD 6.0L Differential VIN: 1GTHK24U35
customer took truck to the dealer, because they said that they could fix it dealer called in an hour no luck getting axle out est $2500-6000 returned to my shop for Jasper replacement cost $2500 out the door thanks to all that replied mark
1989 Jaguar Vanden Plas 3.6L No Start VIN: SAJKY1540K
First, thank you to all who replied with ideas. the fuel pump is good.The injectors have voltage but are not being grounded, which is the ecu's job. In the wiring diagram I got from some data the brn wire from the starter goes to the main relay then off to oth...
1995 Jaguar Vanden Plas 4.0L a/c compressor VIN: SAJKX1746S
Sorry for the delay in responding. Had to deal with a Medical Emergency. Thanks to all who replied. Because of the Emergency, the Hvac system was temporarily bypassed so that the customer could have the use of the car.
2001 Land Rover Range Rover HSE 4.6L abs VIN: SALPM16411
Thanks to all that replied. Some of you stated that a factory scan tool was need to properly diagnose this vehicle and you were correct. I was unable to find any useful information to repair this vehicle. And since I am not in the habit of just tossing part...
1991 Mercedes-Benz 420SEL 4.2L chassis VIN: WDBCA35E9M
The problem was significantly improved (reduced by maybe 2/3), but I can't call it fixed. Bummer. I had to deliver the car and shipped it with new motor and trans mounts, new flex couplings, and a rebuilt driveshaft. It was very smooth below 40 MPH and above 5...
2007 Mercury Montego Premier 3.0L Unknown VIN: 1MEHM42117
Well its finally fixed. Would like to thank everyone that replied, you all confirmed my suspicion. I am not sure which one fixed the problem but I replaced the compressor and the expansion valve and receiver dryer and flushed the system. Everything is ice cold...
2007 Mini Cooper 1.6L MIL Lamp on VIN: WMWMF33517
2003 Saturn Vue 2.2L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 5GZCZ23D53
I got it to start monday morning. no misfire. hmmm. went to see what my FT's were and it set another code p0340. CMP circut Interesting so Doing some research I found out that 2.2L has no CMP sensor its all controlled by ignition timing and controls fuel deliv... Trouble codes: P0300.
2004 Saturn Ion-2 2.2L Compressor VIN: 1G8AJ52F24
Thanks for the responses. In my view the customer makes the final informed decision. In this case he was forwarned of the potential problems with how we did the job. I replaced the screen, txv, and flushed the system completely. Vacuumed for 2 hours and ...
1997 Subaru Legacy GT 2.5L Poor Idle Quality, Misfire VIN: 4S3BG6852V
Thank you for your replies Acutally I'm looking for a good shop to take this car service while in North Hollywood California. Our shop is in Washington state. Im stilling looking for a good auto repair shop. Please email me at [...] greatly appr...
2006 Subaru Impreza WRX STI 2.5L MIL Lamp on VIN: JF1GD79636
ok ,so this is most of a fix.the fix for the p2021 code for the intake runner sensor/actuator was to replace the whole unit, bank comes from the dealer as an assy, about $300 bucks.the intake pulls off with basically the whole engine wire harness.what a p... Trouble codes: P2021, P2444, P2431, P2433.
2000 Toyota Tacoma SR5 3.4L Engine VIN: 4TAWN72N9Y
Thanx guys for all your help as I stated in my update the head gaskets were installed on the wrong sides, replaced head gaskets and all is well! Again thanx and have a great [...].
2004 Volkswagen Beetle GLX 1.8L No Start VIN: 3VWCD31C04
Car is fixed, found a rodents nest and a bunch of chewed wiring in harness under dash...unreal. Most who replied said that ecm was not going to be the issue, and they were correct, i had the same feelings. This damage was very hard to locate.
2000 Volvo V70 2.4L Electronic VIN: YV1LW61J4Y
Sorry the customer has not come back yet. But I agree with several here that the first thing to do would be to replace the ABS module and see what codes remain after that. Will post fix when customer comes back. Thanks.
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