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Prev Professional Automotive Repair Technical Discussions for September 30, 2011
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Open Help Requests for All Makes and Models
Help Request Answers
2001 BMW 330Ci 3.0L MIL Lamp on VIN: WBABN53491
have tested all the usual areas for this complaint, and all is well.found that DME is not giving groung to activate air pump or vacuum solinoid,also ECT is working normally.what else can ihibit this function other than failing DME? any help is good help,thanks... Trouble codes: P0492, P0491
2002 BMW X5 3.0i 3.0L Poor Idle Quality, MIL Lamp on VIN: 5UXFA53592
After reading codes wich indicated a bad vent valve I replaced vent valve and all connecting hoses and the busted intake hose and cleared adaptives. All codes returned. Tried 2 air mass meters with no change, all codes returned. When watcing data (autologic) ... Trouble codes: 202 (Bank 1 control limit), 203 (Bank 2 control limit), 227 (Bank 1 range exceeded), 228 (bank 2 range exceeded), 238 (through 243 misfire on each cylinder)
2006 BMW 325i 3.0L wipers VIN: WBAVB135X6
Vehicle came in with inoperable wipers.Checking here we found the relay to be a common problem.In order to test the relay we have to FIND it. The schematics we pulled from Mitchell & the location of the relay as posted in previous tech helps here have not led ...
1995 Buick LeSabre Limited 3.8L Poor Idle Quality, Surge, MIL Lamp on VIN: 1G4HP5217S
cust states would not start had vats system repaired and ran good for 3 days then started to lope at idle cel light on trans will not shift correctly. we do have a tech 2 and a master tech scantools neither will communicate with pcm removed all other modules f...
2006 Buick Lucerne CX 3.8L MIL Lamp on VIN: 1G4HP57276
Car had code p0332, so I replaced knock sensor on bank 2 with a Delphi part. Yes I changes the correct one. The code came back after a few days. Alldata has horrible diagnostic info. Does anyone know how to test the circuit. Should I have 4.6 volts DC at the w... Trouble codes: P0332
1972 Chevrolet El Camino 5.7L Misfire
Hey guys I have an odd one here.I replaced the engine in this car with a GM reman.Upon starting engine I noticed a misfire .Of course i went about rechecking everything I did and all was ok.Spark plug wires were in correct firing order.I then started checking ...
1994 Chevrolet K1500 Suburban 5.7L CV joint VIN: 1GNK16K1RJ
Hello there, we got a vibration that feels more in front of truck, comes in at 32mph and shakes a bit more at higher speeds. It almost feels like a frozen U-joint, but if you put truck in neutral and race it up to 2200rpm or so it decreases the vibration 80%, ...
1995 Chevrolet G20 Chevy Van 5.7L oil pressure VIN: 1GBEG25K1S
The driver claims the van lost all its coolant and overheated. We cannot find a leak and holds pressure. The next day the oil filter exploded. We replaced the oil filter and the new one exploded almost immediately. The oil pressure gauge pegs high after a few ...
1996 Chevrolet Camaro 3.8L Excessive Emissions, Misfire VIN: 2G1FP22K7T
Vehicle came in for failed emissions and running rough at idle. only rough at idle, at about 1500 rpm engine smooths out. Driving down road cannot feel missfire. found cylinder #1 dead at idle. Tested spark - good. checked for vacuum leak around #1 intake runn... Trouble codes: P0300
1996 Chevrolet Astro 4.3L No Start, no serial data VIN: 1GNDM19W2T
this van will not start in moist conditions. it however will not run now. found there to be no fuel pressure. checked for good connection on all components ie relay center, fuel pump. all good. no power going to pump (2 sec pulse or on crank.). oil pressure se...
2003 Chevrolet Impala 3.4L abs module VIN: 2G1WF52E83
abs code C1298 pcm class 2 serial data link fault, pcm code [...] comm EBCM-checked powers and grounds using a headlightusing the grnds in connector light bright, loaded system with vechile running no change,run a redundant power from battery to pink ing w...
2004 Chevrolet Malibu 2.2L ignition lock cyl VIN: 1G1ND52F84
Thanks in advance to all who take the time to reply. My problem is this 04 malibu with the ign lock cyl. in the dash, it was towed in because key won't turn in the ignition. My Mitchell has no info. other than to turn the key and push in the tab to replace the...
2004 Chevrolet Suburban 2500 LT 8.1L Encoder Motor VIN: 3GNGK26G74
Vehicle came into shop with complaint that intermittantly the transfer case lights would switch by themselves. has DTC: C0327--encoder circuit. We disassembled the motor to replace the encoder sensor and found it best just to replace the whole tranfer case/enc...
2005 Chevrolet Corvette 6.0L trans or tube VIN: 1G1YY24U35
This Corvette has a rattle in any trans position. With a slight rpm increase the noise goes away. We disconnected the torque converter and the noise goes away. We removed the trans and sent the converter out for inspection. The converter company said they foun...
1994 Dodge Ram 2500 5.9L lock-up VIN: 1B7KF26C4R
This truck came in for kicking in and out of lock up at light throttle cruise. Took the truck for a ride sure enough it went in and out of lock up while at a steady speed sometimes very quickly. I have fixed many of these problems before. I put my scope on the...
2001 Dodge Dakota Sport 3.9L Engine VIN: 1B7HG2AX31
Hello everyone. This is my personal vehicle so fixing it is a must. I bought this 2001 Dakota Quad Cab 3.9L 4x4 about a year ago. Since than I have had nothing but issues outta this truck. My longest standing issue is a miss/lack of power. The truck has no pow...
2003 Dodge Ram 2500 5.9L No Start VIN: CD7KU26C43
replaced engine no start, will start with starting fluid, snap-on scan tool shows 6700 lbs fuel pressure. no codes does smoke out the exhaust while cranking,
2001 Ford Escape XLT 3.0L Warning light On VIN: 1FMCU04111
Hello, I've worked on this vehicle a couple of time now. The first time I worked on it the Airbag warning light was on. Scanned the system for codes and found three in the system. 1, B1877 drivers seatbelt pretensioner open. 2, U2018 passenger side crash senso...
2003 Ford F-250 Super Duty Lariat 6.0L Parking lights, instrument lights VIN: 1FTNW21P53
Thanks for any replies I get about this. I originally posted about this last week and foolishly closed the post after installing a circuit breaker instead of waiting to close it when I got more replies or information. Well, here we go again. Vehicle blows fuse...
2004 Ford Freestar Limited 4.2L MIL Lamp on VIN: 2FMZA58284
This vehicle came in with the P0606 code stored and SES light on. Replaced PCM and flashed with latest calibation from Ford with an IDS scan tool. Vehicle came back two days later with same code. Hard to believe the PCM is bad again. Any other causes for this ... Trouble codes: P0606 (PCM Internal communication error)
2004 Ford F-350 Super Duty XL 6.0L Cooling Systems VIN: 1FTSW31P54
HI Guys,Not a diesel guy, but got one in here anyways.Blowing a ton of white smoke out tailpipe.Read a bunch of posts concerning EGR cooler problems.Kind of confused by my test results.First,I did a block test,Cold,At idle it blew a lot of bubbles through test...
2004 Ford Taurus SES 3.0L Mechanical VIN: 1FAFP55U24
squeeking noise at left head rear upper at intake eng hot no ses light no codes no miss .no nose cold start found tsb on reposition cam & retorque .
2000 GMC Yukon XL 1500 SLE 5.3L Misfire VIN: 3GKFK16T4Y
Hi folks, thank you in advance for your help. This Yukon has a strange intermitent miss. it happens either cold or hot and only once or twice a day. When you start it up it will either run great or will barely stay running. When it is acting up it will continu... Trouble codes: P0300 (Random multiple misfire)
2002 GMC Sierra 2500 HD 6.0L Spark Knock/Detonate VIN: 1GTHK23UX2
Customer brought truck in for noise. Verified as spark knock. Found TSB on knock sensor corrosion, removed the intake and inspected sensors - both ok. Tapped on block and both put out AC volts. Reassembled intake with new gaskets. Cleaned MAF eventhough readin...
2003 GMC Yukon XL 1500 SLE 5.3L MIL Lamp on VIN: 3GKEC16Z13
The problem is intermittent. I have never been able to duplicate the problem but every time 10 minutes after the customer picks up the vehicle he calls back and says the light is back on. The vehicle runs perfect just the light comes on. Trouble codes: P0101
2005 GMC Canyon Z85 SLE 2.8L No Start VIN: 1GTDT19865
Good morning, I have this GMC Canyon here with a dead instrument cluster(the only things that work are the passkey and mil lights). I checked power and grounds and they are both good. All of my exterior lights work and the truck runs fine. I also have a inter... Trouble codes: P0650 (Mil control ckt problem), U1301 (Class 2 communication ckt low voltage), B0687 (Security system indicator low)
2006 GMC Sierra 1500 SL 4.3L No Start, Stall VIN: TGTC14XX6Z
towed in no start found good fuel pressure and injector pulse found no spark checked spark from coil and found no spark. replaced crank sensor due to reluctor marks on it and still no start. found burn markes on coil and we had a new coil and ignition module i... Trouble codes: 128 (coolant temp out of range)
2000 Honda Accord LX 2.3L Hesitation VIN: 1HGCG317XY
The car hits the rev liniter after 4200RPM, not oil level, not vtec, and speed jumps to 158 MPH... new distributor, new vtec solenoid... please help
2002 Hyundai Santa Fe GLS 2.7L MIL Lamp on VIN: KM8SC13D12
run self test of evap system car passes. drive down road light comes right back on. Trouble codes: P0444
2003 Infiniti QX4 3.5L Overheats VIN: JNRDR09Y93
Repaired coolant leaks at rear head crossover and front crossover oring.test drove seemed okay and rechecked coolant it was full.drove again after 3 miles temp gauge when up and coolant came out overflow. Let engine cool radiator still full.i talked to the guy...
2005 Land Rover Range Rover HSE 4.4L suspension controller VIN: SALME11495
Sorry for such a seemingly petty request but I can't find the suspension control module for this LR. We have Mitchell's and Alldata and even though this car is 6 years old there is very little info for it. I'm told the sus module is under the left side of the ...
1998 Lexus ES300 3.0L MIL Lamp on VIN: JT88F28G1W
We replaced a Mass air flow meter for code p0171, after checking for no vacuum leaks, in pcv system, brake booster and smoke test...Customer return after one week. Rescan and found code p0171. Freeze frame. 750 rpm , 0mph. long term bank 1 and bank 2 35% in cl... Trouble codes: P0171 (System running lean)
2002 Mazda Protege DX 2.0L Alternator VIN: JM1BJ22502
hey folks, got this protege that's not charging. already have replaced 2 alternators one from world pac - bosch reman and another reman from oreilly. what the heck am i missing. my guess is that PCM. i got 12.58v at the alternator battery terminal even with th...
2009 Mercedes-Benz ML350 3.5L fuel tank lid
Hi Benz we have a ML350(164) that the fuel tank lid is hard to removed.We need special tool (164 589 01 07 00) but this tool is hard to buy here.Who can tell me the size of this tool so we can make ot ourself? Thank you. ...
1998 Mercury Sable LS 3.0L Surge, Stall VIN: 1MEFM53SXW
customer states the problem is a bucking over 40 and a stall when coming to a stop intermitantly. There are no codes. I have duplicated and nothing in scan data stands out when it occurs, o2s work fine when it happens, fuel trims are good. I have scoped cam an...
1997 Mitsubishi Eclipse RS 2.0L Hesitation, Cuts out, Cuts out at 3k rpm VIN: 4A3AK34Y0V
hey guys thanks in advance for any help. This car will run fine when it is first started and its cold. you can rev it up to the rev limiter which is at 7k. after driving it for a little while or letting it get up to operating temperature it will just cut off a...
1997 Mitsubishi Eclipse Spyder GS 2.4L Cuts out, Stall VIN: JNYUT54532
this car came to the shop in a tow, car start but dies right away, I have test everything timing cam sensor crank sensor fuesl pressure I have trie another ecu, maf, crank , cam sensor everything looks fine, any ideas, car stars accelerates but dies any body h...
2001 Nissan Sentra XE 1.8L Cuts out VIN: 3N1CB51D21
Car runs great when started cold until driven for about 5-15 miles. Then idles fine and runs fine if you keep it below 2500 rpm and just apply light throttle. Heavier throttle application or higher rpms and it cuts out as if you turned off the key until you le... Trouble codes: P0420 (Catalyst Efficiency B1), P0430 (Catalyst Efficiency B2), P0403 (EGR Circuit Malfunction)
2001 Nissan Altima SE 2.4L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1N4DL01D81
vehicle came in surging and stalling did full tune up plugs, wires, fuel filter, cap , rotor made worse replaced mass air flow sensor and this did not help either any suggestions???
2003 Nissan Maxima SE 3.5L Stall VIN: JN1DA31A13
Nissan guys. Thanks for any replies or help in advance. Had the battery disconnected for a couple days during repairs. Fininshed repairs, started car with no problem, idled fine,ran great. Shut it off to put hood on, went to start and now start and stall. Let ...
2003 Saab 9-3 Linear 2.0L Uec VIN: YS3FB49S73
The vehicle came in with inop headlamps, windsheild wipers and turn signals. Checked bus with Tech 2 and it says underhood electrical center not added.I got security access and attempted to add the underhood electrical center to vehicle and I don't have commun...
2000 Toyota Celica GT 1.8L Hesitation, Misfire, MIL Lamp on VIN: JTDDR32T14
This vehicle has come in, customer complaining of MIL. Vehicle hesitates very badly under load and has very rough idle. Went ahead and swapped all the plus and coils around and cleared the MIL to isolate a cylinder, seems cylinder 3 is having the most misfires... Trouble codes: P0300 (Random Missfire), P0301 (Missfire Cylinder 1), P0302 (Missfure Cylinder 2), P0303 (Missfire Cylinder 3), P0171 (System Lean Bank 1)
2002 Volkswagen Golf GLS 1.9L Poor Idle Quality, Surge VIN: 9BWGP61J02
Car surges/hunts at idle about 200 rpm when A/c is turned on or when car is first started, also when put in gear. Original complaint was a check engine light & engine shaking at idle, we replaced the EGR assembly/ flapper valve due to being clogged with carbon... Trouble codes: P0671 (glow plug circuit)
2002 Volkswagen Passat GLX 2.8L Heat VIN: WVWRH63B52
Hi everyone, I have just completed a timing belt, thermostat and water pump {steel impeller}and new coolant.I'm getting no heat at idle but above 1500 rpm it's fine. I have seen many Audi/VW with broken impellers therefor I always install a steel impeller typ...
2004 Volkswagen Jetta TDI 1.9L MIL Lamp on, Whistle VIN: 3VWRR69M64
Hello techs: A TDI BEW VW with the turbo boost position sensor code on a high mileage diesel with low power. Pretty straightforward repair turning into complicated issue. I put in a new turbo from buyautoparts and the first thing was the outlet on the housing ... Trouble codes: 18996 (P2564 Turbo boost position sensor out of range)
2004 Volkswagen Beetle GLS 1.9L serp belt VIN: 3VWCR31C34
Veh has vibration at serp belt tensioner when condensor fans come on. Symptoms were for the one way clutch on the alt. Replaced clutch and did not change symptoms. Used old style manual alt tested and loaded alt to 50 amps and that makes serp belt vibrate badl...
2004 Volkswagen Golf R32 3.2L fuse 37 VIN: WVWKG61J14
Hi, thanks in advance for your help. This car blew fuse # 37 when the customer came to pick it up(after I had test driven many miles of course). Car wouldn't restart, no communication between modules, no ck engine light. I assumed that it had to be something I...
2005 Volkswagen Jetta 2.5 2.5L Hesitation VIN: 3VWDF71K95
Car limped in with poor/no throttle response-listed codes present-however throttle codes do not match a 2.5 engine in MOD or ALLDATA-just a 2.0?-cleared codes and p1559 returns as soon as you open the throttle-from everything I am reading it would appear the t... Trouble codes: P1559 (Fault in basic settings), P0118 (Thermostat), P1545 (Throttle body), P0121 (Throttle switch), P1545 (Throttle body)
2001 Volvo S60 2.4T 2.4L Air Conditioning VIN: YV1RS58DX1
This is my mother in laws car which she just purchased at an auction. Shortly after she had pep boys replace the battery then the climate control unit went dead. She brought the car to a volvo specialist who said the heater unit needs to be replaced with a new...
2001 Volvo V70 X/C 2.4L Rt/front door VIN: YV1SZ58D41
Sometimes, there's a loud buzzing coming from right/front door and the window won't operate. This occurred after putting window down to replace mirror glass & drive motor, key on or off. After a while, the buzzing stops and the window operates normally. Custom...
2002 Volvo S60 2.4L No Start VIN: YV1RS61R52
Car won't start. Engine Cranks fine but won't start. I have put a battery charger on for testing as the headlights come on every time the key is turned on. Fuel Pressure jumps to 53PSI when key is cycled on but drops to 50 after the initial 2 second power up ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Acura RSX Type-S 2.0L Compressor clutch VIN: JH4DC53042
I am closing this help request because the client has not returned with the vehicle for further testing. If the vehicle should return, I will update this post. I received seven replies to my help request. Here is a summary: Eric from Illinois asked, "Doe...
2007 Audi A4 Cabriolet 2.0L brake lights always on with ign key on VIN: WAUBF48H17
I have traced it down to a steering colum module or eltric control module. Either module needs to be programed at the dealer. Decided to send this back to customer and let the dealer diag the problem
2004 BMW 745Li 4.4L Mechanical VIN: WBAGN634X4
Thanks to all that took the time to respond. I got a few good ideas from the replies. We let the customer drive the car for a few days to see if the oil smoke would go away on its own and it did. The MIL has not come back yet but we're recommending the 2 post ...
2006 BMW 325i 3.0L Dsc VIN: WBAVB135X6
Thank you Bernard, Progman did not comunicate or understand the DSC software. OSS is the way to go. OSS fixed my problem with the software.
1994 Cadillac Seville STS 4.6L No Start VIN: 1G6KY5294R
first of all thank you very much for all your responses everyone! I have had to work on this car as I have time, so it took a little time to get to the bottom of it. It turned out to be a ground wire that was broken with the sheathing in tact. just above the v... Trouble codes: 36 (linear egr pintle position out of range), 95 (engine stall detected).
1982 Chevrolet Corvette 5.7L Misfire VIN: 3GA1Y61851
this car is not fixed. its hard to get it to act up. i finaly did. i did plugs again cause it was running rough, but it started coughing real bad. thought it was mechanical, but i unplugged the est wire and it smoothed out, plug it back in it gets rough agaIN....
1992 Chevrolet K3500 Silverado 7.4L Brakes VIN: 2GCHK39N4N
The short answer is the problem was the calipers. We pulled apart the latest ones and found two different TYPE of pistons installed. (NOTE:) One side was significantly tighter that the other. One piston was slightly hanging up. We then ordered a different bran...
2004 Chevrolet Cavalier LS 2.2L Fuel Gauge&High Beam Light Indicator VIN: 3G1JH52F14
thanks for all the help guys.Douglas & Nicholas seem to have nailed it.igot digging around and behind the RIGHT headlight not the left the wiring harness going to the light was damaged .the brown parkinglight feed the pink highbeam wires were posably rubbing ...
2001 Dodge Ram 2500 5.9L engine VIN: 3B7KF23701
sorry for the long delay but the truck was fixed relatively easy.after pulling oil cooler and finding no good way to pressure test i replaced it to no avail.water pump bolts directly to block on this one so no timing cover to erode.removed valve cover and pres...
2000 Ford Taurus LX 3.0L Starting System VIN: 1FAFP5228Y
2000 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on VIN: 1FMRU1664Y
I fixed the rough idle. It was a vacuum leak, PCV valve was leaking in 2 different spots on the same hose(pass. side runs from valve cover to back of intake) also another leak was one of the EVAP hoses that connect to a valve next to the master cylinder (not e... Trouble codes: P0401 (exhaust gas recirculation flow insufficent).
2002 Ford Taurus SE 4-Valve 3.0L Head Gasket VIN: 1FAFP56S22
Thanks for confirming my thoughts everybody. A sophisticated engine with a crank case full of antifreeze smells like bad juju to me, and apparently to most all of you too. Thank you very much for your time and expertise. New or used engine going in or car is g...
1995 Mazda B2300 2.3L No Start
thanks all who replied. the culprit was in fact the crank sensor plug. i was getting false ac voltage spikes at ecm crank signal in. replaced the crusty old plug and she came on line. thanks again!!
2003 Mazda Protege5 2.0L Rr Wsps VIN: JM1BJ24532
replaced the abs sensor and vehicle has not been back thanks for the help
2006 Mazda MX-5 Miata 2.0L No Start VIN: JM1NC25F56
Finally, its running!!! Jimmy [...] was correct, all four fuel injectors were clogged or stuck! The noid lamp that I was using to check for fuel injection pulses was burned out and the STFT being -99.2% further confused the diagnosis. This morning I tested...
2003 Mercedes-Benz C320 3.2L Surge, shudder VIN: WDBRF64J73
We did take a sample of the fliud and it did look contaminated ( orangish/bronze in color).We changed the Valeo radiator and flushed the system using our BG trans flush machine, we could watch the fluid clean up. Took it for a test drive, the surge and shudder...
2003 Nissan Pathfinder SE 3.5L Won't Accelerate VIN: JN8DR09Y93
OK Sorry to wait so long but given the History of this Trucks intermittent troubles I wanted to wait & see if there were any more problems in the coming weeks of driving. It has been gone for just over 3 weeks & has gone 663 miles without any trouble. The ... Trouble codes: P1121 (Electric Throttle Control Actuator).
2005 Pontiac Grand Prix 3.8L Master Cylinder VIN: 2G2WS52215
Thank you all very much! I could never find any description of how the sensor system worked and could not see the float in the dark fluid. I will try cleaning the brake reservoir to save my customer the money of a new res.
2003 Saab 9-3 Arc 2.0L Radio VIN: YS3FD49Y03
The customer picked up the car and has not returned yet. When the car returns, I plan to visually check the optical bus at each component in the system. There should be light on the optical cable in and out. Componentes can be bypassed by looping the light ...
1990 Toyota Pickup 3.0L Surge, Cuts out VIN: JT4VND7L20
well a nether one fixed due to some awsome responces from you techs. thank you!!! i unplugged the spedo head unit and the hesitation and cutting out is gone. i plugged it in agian a right a way the cutting out was back. got new spedo and all is good. thanks ag...
1998 Toyota Tacoma SR5 3.4L No Start VIN: 4TAWN72N0W
I am new to this group and I must say thank all of you who replied. Most of the replies sugested checking the crank sensor ring. Well I had my Tech remove and check it and the belt timing not once but twice befor asking for help. When I see all the sug. point...
2000 Volkswagen Jetta GLX 2.8L No Start VIN: 3VWTE29MXY
ok, this one is fixed, it ended up havinga used cluster and after the cluster i gained scanner with everything but the engine ecu. ended up installing a used ecu, having it recoded and all is well. no shorts found in the data lines. thanks everyone for your he...
2006 Volkswagen Passat 2.0T 2.0L parking brake VIN: WVWEK73C06
I tried to run thru the procedure again using my Verus in the expert mode, using the block codes from Danny (thanks!), but vehicle would not respond. Worked yesterday in vehicle mode, so I suspected that something else was up. No codes anywhere in any modules...
2004 Volvo V70 2.4 2.4L Hesitation, Surge VIN: YV1SW61T24
Fixed car and drives like a dream. Was able to trace down to a restricted cat. Thanks for all the input everyone.
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