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Prev Professional Automotive Repair Technical Discussions for July 20, 2012
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Help Request Answers
2006 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E76
Hey, thanks in advance for your help here. We replaced the intake camshaft because the fuel pump drive cam was killing the pump follower, usually a pretty straight forward job... The intake cam was somehow installed 1 tooth off (exhaust cam never moved) and wh... Trouble codes: P0016 (Camshaft / Crankshaft Correlation)
1997 BMW 328i 2.8L convertor clutch VIN: WBABK8321V
it seems that the controller is not digesting the range sensor inputs correctly, but a different controller is the same. i have chased all the range sensor wiring and positions in the connectors and have found nothing. does the tcc work in other positions than...
2000 BMW X5 4.4i 4.4L Unknown VIN: WBAFB3352Y
vehicle came to shop with many codes present I ran My launch and came up with codes that I can not get any information on how to diagnose can anyone help me on these codes please they are as fallows: 18 - Pulse Gear Fault 8C - Activation Map Cooling
2000 BMW 323i 2.5L Electronic VIN: WBAAM3349Y
I am unable to find the the auxiliary fan relay is there anybody out there that knows where this thing is located at please help and thank you.
2001 Cadillac Eldorado ETC 4.6L No Start, No crank VIN: 1G6ET12951
First,thanks in advance for your time and any assistance. This vehicle came from a used car dealer. This beast was presented to us as a no crank concern. We were told that up until that point it was running fine and had been for a couple of weeks after having ... Trouble codes: U1000 (u1255-), U1255
2008 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DP57V98
this car camer in with the p0100 code. cheched the connector have power, ground, 5 volt reference. all test all data tells you to do except for the test with the factory scan tool because i dont have one. everytyhing was pointing to the maf sensor. replaced th... Trouble codes: P0100
1995 Chevrolet C2500 Suburban 7.4L Excessive Emissions VIN: 1GNGK26N0S
Need help guys. Car failed asm dyno smog test for nox. Linear egr can be commanded via scan tool on and off and will stall engine. During asm test, egr valve can be commanded to 75% and nox readings go from 1300-1500 to 100ppm. This tells me that ecm is not co...
1999 Chevrolet Express 2500 5.0L Sdm VIN: 1GCFG25M4X
Presented to us with b 1071, SDM module internal failure data shows no short or open (4.6 ohms on both bag circuits) Information I need is, Is this module on this year vehicle a plug and play? dealer says it needs to be programmed. I had done this same job i...
2000 Chevrolet Astro 4.3L Cuts out, Stall, Misfire VIN: 1GNDM19W8Y
intermittany stumbles or missfires on take off. rarly stall replaced map sensor, back probed wires, good 5v ref while acting up, signal wire reades within 1-3 mv when acting up, gnd .02 voltage drop while acting up. codes only rey\turn when van stumbles/missfi... Trouble codes: P0107, P1107
2001 Chevrolet Malibu 3.1L Poor Idle Quality, Surge, High Idle VIN: 1G1ND52J71
Thank you to everyone who responds. So a friend of mine brings in his Malibu and it is idling fine. tells me that he took it on about a half hour drive and was using cruise and when he got to the town the idle on the car was high and he had to ride the brakes ... Trouble codes: P0122, P1122
2005 Chevrolet Silverado 1500 4.8L actuator VIN: 1GCEC19V75
rh vents go to heat intermittingly
2009 Chevrolet Cobalt LT 2.2L MIL Lamp on VIN: 1G1AT58H89
oil in cooling system, moisture in oil, add dye head crack between cylinders #3 #4, replace cylinder head, have code P0016, P0017, any wave forms for crank and cam senosr correlation? Trouble codes: P0016 (ckp-cmp correlation), P0017 (ckkp to exhuaust cmp correlation)
2010 Chevrolet HHR LT Panel 2.2L No Start VIN: 3GNBABDB6A
Found codes listed. Could not communicate with ABS module with Tech 2. Unplugged ABS Module and car started. We believed the ABS module was bad grounding the high speed lan so replace module and reprogramed. Car towed back in same problem. Same codes. If we cl... Trouble codes: B1370 (SDM Modul Device Ignition 1), B0090 (SDM Rollover Sensor), B0081 (SDM Passenger Presence System), U2108 (Lost communication with ABS Module)
2005 Chrysler Crossfire 3.2L Stall VIN: 1C3AN65LX5
Ready to retire over this one. Customer states it stalls- an it does- frequently. P0335, CKP circuit. When the system is cold I have CKP, when it stalls there is no picture. Cranking gives blips on the base line, but not any recognizable wave. New CKP- exactly... Trouble codes: P0335 (CKP Circuit)
2005 Dodge Grand Caravan SE 3.3L asd relay and IAC motor VIN: 1D4GP24R55
When I turn the car off to the position 2 in the ignition switch the engine kind of turns of like if spark has been cut off and the asd relay and IAC motor start clicking on and off. I've discounted the IAC motor as soon as I turn it off with someone helping m...
1993 Ford Ranger STX 3.0L Transmission VIN: 1FTCR14U2P
Very low mileage vehicle time just got the better of the seals. Have a front pump seal leaking on the transmission. Just wanted some infomation on weather or not I should do the bushing like I have done on higher mileage vehicles or not. There is no scoring on...
1993 Ford F-150 XL 4.9L Hesitation, Cuts out, Misfire VIN: 1FTEF14Y3P
4.9l 5 speed Manual trans. Vehicle was hacked upon by a previous tech. Vehicle came to me originally with the request to install vacuum routing properly after he was unable to install correctly. Rerouted vacuum hoses. Found secondary air injection to have been...
1996 Ford Thunderbird LX 4.6L unknown VIN: 1FALP62W2T
Customer complains that A/C system keeps cutting out and then quits. This car has the auto system. Upon inspection I found the 5 amp fuse that powers the module blown. I replaced the fuse and tried to ck the module by entering it's self diag mode but I can't g...
1998 Ford Windstar GL 3.8L No Start, Cuts out, Stall, Misfire VIN: 2FMDA5144W
The vehicle would stall and missfire causing it to kill narrowed problem down to fuel pressure cannot get more than 15psi. i am getting 12 volts on the pink/black wire at the pump and if i apply a groung to the pump it will put out 60 psi. Have been told about... Trouble codes: P0232 (Secondary fuel circuit high voltage)
2002 Ford F-250 Super Duty Lariat 7.3L Scope Info VIN: 1FTNW21F92
Hey guys/girls, this is my first time posting here and I'm only looking for some information. I CANNOT for the life of me find any information on the APP idle validation switch. I cant figure out whether or not it is an ACTUAL on/off style switch that goes fro...
2006 Ford Focus ZX3 2.0L compresser clutch VIN: 1FAFP31N96
The compresser clutch turns off on this car under even light acceleration. If you let off the throttle or let the RPM stablize the PCM will command a ground for the A/C relay and the system cools well. In MOD's theroy of operation there is no mention of the PC...
2007 Ford Expedition XLT 5.4L Misfire VIN: 1FMFU15547
This Expedition is driving me nuts. It came in with "trying to die at idle" and the owner wanted new plugs and boots. I installed the plugs and find out that the problem is random misfires at idle. The car had a PO300 but it was erased before I got it. I drove... Trouble codes: P0300
2004 GMC Sierra 2500 HD 6.0L fuel gauge VIN: 1GTHK23U74
Hey guys i need some help on this one. This truck came in about a month ago with the owner saying the fuel gauge was not reading right sometimes. I pulled a p0462 fuel level sensor problem but the check engine light was not on. I could not duplicate the proble...
1998 Honda CR-V EX 2.0L starter, ignition, gauges, MORE VIN: JHLRD1867W
3 weeks ago, installed a japan import 50K long block. Reused original intake and exhaust manifolds and all accessories. Started, all was good, ran great. Week later CRV was back because it died while driving, would not crank and the shifter would not move out ...
2006 Honda Odyssey EX 3.5L timing belt VIN: 5FNRL38746
I am doing a maint timing belt when I got the covers off and lined up the marks the front cam and the crank line up, the mark on the rear cam is 180 degrees off . It was running fine when I brought it in and the customer says no other work has been done.I am a...
2006 Hyundai Sonata GLS 3.3L engine VIN: 5NPEU46FX6
Light upper engine knock at idle get llouder on barely touching aceleratot. Goes when when full accelerates. Code p0325...I'm lost oj what it is. Oil level good...don't feel or hear misfire while driving
2007 Hyundai Santa Fe SE 3.3L Power Door Locks VIN: 5NMSH73E87
Hi all. I'll start by saying I haven't had adequate time to do a FULL diagnostic on this critter, but have gone far enough to know that it would definitely help if someone has seen this before. The power locks go inop after a few cycles, starting with driver r...
1984 Isuzu Pickup DLX 2.2L Push Rods VIN: JAACL14S5E
This is my son's truck. Don't know much about diesels, but the truck was running fine one day and then all of a sudden started running like crap. pulled the valve cover and found a push rod missing. yes, missing. after further inspection found 1 broken push ro...
2001 Lexus GS300 3.0L Abs VIN: JT8BD69S81
Vehicle came in with C0226, C0236, C0246, C0256 and C1223. Went ahead and replaced the ABS pump and ecu located on the driver side with . After 50 miles of test drive the code would come back this time it was C0236 and C1223. Inspect connection between the wir...
2002 Lincoln LS 3.9L Cooling System VIN: 1LNHM87A12
Help!!! This LS is killing me. Drives great but when A/C turned on it overheats. Cleaned A/C condenser and ensured radiator is clean. Installed new OE temp thermostat and verified no internal leakage. Fans cycle as designed and relays/diodes test good. Dont kn...
1996 Mazda 626 LX 2.5L Misfire VIN: 1YVGE22D6T
The car has a misfire off of idle. Check engine lamp on code set P0301. I replaced plugs and the plug wires, replace intake gaskets, compression test all cylinders a little low but close together. Checked the ohms at the injectors and all the same. Trouble codes: P0301 (Cylinder 1 misfire)
2005 Mercedes-Benz SL500 5.0L Door Locks VIN: WDBSK75F65
Vehicle was used to jump start someone but the cables were hooked backwards off the starter battery under hood and now everything run off of the pse pump is inop. And there is a b1021 for can network comm. Failure.
1998 Mitsubishi Galant ES 2.4L oil leak VIN: 4A3AJ56G4W
This is my personal vehicle. I did timing belt due to oil leak. Cam seal was the culprit. Now I have a worse oil leak. Verified Cam, crank, oil pump, and balance shaft seals are not leaking. The shaft on the engine support bracket for the pivot arm for the ten...
2003 Mitsubishi Eclipse GTS 3.0L fails OBD test VIN: 4A3AC74H93
Hi guys. I'm hoping someone can shed a little light on this one. This eclipse wont communicate during and OBD emissions test. I have tried two different emmisions machines. it communicates fine with a generic scan tool. All the terminals on the DLC look good. ...
1996 Nissan Sentra 1.6L Timing VIN: 1N4AB41D1T
Nissan techs i need your help! car came in with bad knocking from timing chain slap. Guides were hammered. Installed all new timing kit. Car starts and runs/idles great. When you go to give it throttle, it won't get out of its own way. Feels like i'm pulling 3...
2005 Pontiac GTO 6.0L Ignition VIN: 6G2VX12U05
Here is how it all went finished the motor built from shortblock customer ran it out of oil. Primed the oil good pressurre stuck the motor in the car cranked and cranked it it no start... pulled codes got a P0335 for curcuit A looked over at my bench saw the c...
2008 Saturn Vue XE 3.5L extended crank VIN: 3GSDL43NX8
vehicle came in with extended crank and occasional misfire; tested fuel pressure at test port and observed pressure drop from specified value koeo. Assumed check valve (part of fpm) was bad so replaced fuel pump module. Upon restart after replacement, same res...
2007 Toyota RAV4 2.4L Hesitation VIN: JTMZD33V07
Hello folks, I need help on this one. Car has a hesitation after slowing down and trying to accelerate again. It doesn't have any code nor transmission code, fuel trim they are okay +5% and -5% I can't duflicate problem but costumer estates it has a problem. A...
2002 Volkswagen Beetle GLS 1.8L battery VIN: 3VWCD21C52
vehicle has an intermittant draw.may take a few days or a week but keeps coming back dead.performed draw test and found the after run coolant pump runs for 10 mins or so then the modules go to sleep leaving a draw of 30-40 Ma.this is well within spec.vehicle h...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1994 BMW 325i 2.5L convertible top VIN: WBABJ6321R
Thanks for the help! Peter from Great Britain confirmed up or down 6% open reading is normal. Mark suggested adjusting rods, that helped after I got it to re-sync. Rick from New Hampshire went the extra mile and sent flow chart, thanks! I pulled the top do...
2008 BMW 328i 3.0L retractable hardtop VIN: WBAWR33598
Top works now after replacing "Rear module Hall Sensor" at right rear hinge of "Rear Module Assy"(near RR tail lamp assy). Part #5437 7148152. ALLDATA had little to nothing, no iATN hits and all I really had was a Code A691. Hall sensor was a short four wire h...
2005 Cadillac DeVille 4.6L Misfire VIN: 1G6KD54Y15
Hello all and thanks for the advice, well I didn't get this one fixed as the customer wished to take it as is. Almost everyone said blown head gasket, but it was full of coolant and held pressure overnight, and the customer had recently took a trip with the ca... Trouble codes: P0300.
2007 Dodge Grand Caravan SXT 3.8L Electronic VIN: 2D4GP44L47
bradley was right, had motor for blend jambed in. didn't connect to door had to replaced motor.
1998 Ford Explorer Eddie Bauer 4.0L speedometer VIN: 1FMZU34E1W
Actually, the speedometer has not failed (yet) since I made the help request. I was concerned that the speed sensor in the rear differential was not the source for the VSS signal, because the speedo still worked with the sensor unplugged. From the replies I re...
2000 Ford E-350 Econoline 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDWE35L9Y
I feel I jumped the gun even asking for your help on this one. The tech who cleaned up the rodent nest and replaced the intake gaskets did not take the necessary precautions to keep material out of the intake ports. Once I saw the compression readings on all c... Trouble codes: P0174 (Lean), P0171 (Lean).
2002 Ford Ranger Edge 3.0L air bag module VIN: 1FTYR44V12
basically the customer did not want to continue with the fix, said as long as its ok to drive he did not care...
2003 Ford F-250 Super Duty XLT 6.0L Hesitation, Cuts out, MIL Lamp on VIN: 1FTNX20P63
Thank for everyone help...(CHRIS FROM CAL). After replacing the Turbocharger, everything was fix. Trouble codes: P132B.
2004 Ford F-150 XLT 4.6L Timing chains VIN: 1FTRF12W74
Replaced the chains, tensioners and guides by just locking down the cams. Engine runs and sounds like new now. This engine has pressed on sprockets which Ford makes no mention of in the repair manual nor does Cloyes in it's parts catalog. I bought the deluxe t...
2004 Ford F-250 Super Duty Harley-Davidson Edition 6.0L No Start, No communication VIN: 1FTNW21P44
Thanks to all who replied, issue was loss of 5v reference due to failed ICP sensor. Our bad... thanks again.
2000 GMC Safari SL 4.3L Hesitation, Surge, Misfire VIN: 1GKEL19W5Y
Thanks for all the replies. Replaced the fuel pump with a Delphi unit and it's fixed. These Safari's are very sensitive to fuel pressure. As soon as it dropped to 55 psi at wot it started losing power. Now the pressure stays above 60 at wot. Also cam retard is...
2002 Honda Civic LX 1.7L door locks VIN: 2HGES16522
Customer needed vehicle and didn't seem to interested in fixing it at this time. I did ck on the cost of harness and they are inexpensive. Now I just have to wait on customer. Thanks for the inputs.
2008 Infiniti FX35 3.5L Electronic VIN: JNRAS08WX8
I did check pressure switch, lines, ipdmr, bcm but the A/C control unit was replaced and maybe it was affected by when the car had the accident. This problem is fixed.
1991 Mazda Miata 1.6L Poor Idle Quality, Stall, Misfire VIN: JM1NA3518M
Thanks for all the help guys I came in early this morning determined to fix this sucker. I performed a leak down test and found leakage to the exhaust. I decided to tear the front back off and wouldnt you know it the exhaust cam dowel is pushed back and the ca...
2000 Mazda Protege DX 1.6L Engine VIN: JM1BJ2221Y
I checked to verify my tech didn't mess up anything int the timing and everything looked fine- the timing marks were all spot dab on accurate cams were lines up properly, crank was perfect. After looking over it again on a hunch I had him flip over the timing...
2004 Mazda 6 S 3.0L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1YVHP82B74
Thank you to all that replied.Had a friend that knows someone works at mazda dealer and let me bring over and use there factory scan tool .Found #3 cylinder misfiring but not enogh to set code.Found solenoid for egr pressure sensor not working replaced both an... Trouble codes: P1487.
2005 Mercury Grand Marquis LS 4.6L Electronic VIN: 2MHFM75W35
hi guys i went through all the basic i found the vacuum source in the back of controller wasnt seating properly iam replacing the vacuum source it working ok now thanks to every one thanks again
2005 Mercury Grand Marquis LS 4.6L Stall, MIL Lamp on VIN: 2MEFM74W95
Thanks for all the great advice again guys.I exhausted myself testing before condemning the PCM but finally took the leap and sent it to AES in Florida and after 2 long weeks it came back and drove the car 50 miles and returned to customer. That was the last j... Trouble codes: P2106, P2107, P060C, P061C.
2003 Mini Cooper 1.6L compressor VIN: WMWRC33423
Thanks to all who replied. I took stephens advice and put a new clutch assy. on the old compressor.No more noise. Thanks again for all the help! Mike
2003 Oldsmobile Alero GL 2.2L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 1G3NL52F13
Thanks for all the help the timing chain jumped time on the exhaust cam. Trouble codes: 300 (Missfire).
1997 Plymouth Grand Voyager SE 3.3L No Start VIN: 1P4GP44R8V
Good Friday Afternoon to all. The above mentioned Voyager left here last Monday. We inspected all wires under and near manifold cross over pipe, looked ok. Cleaned all grounds available. Still only starts and runs when it wants to. Hooking up the MT2500 works... Trouble codes: P0340 (Cam sensor no signal).
2005 Pontiac Vibe 1.8L wheel bearing VIN: 5Y2SL638X5
well this car is fixed! talked with customer about any accidents and he said yes a couple years ago rt frt. so when pressing apart noticed that the bearing housing was cracked. so checked knuckle with dial indicator to find a section that was out 1mm repla...
2004 Saab 9-3 Arc 2.0L No Start VIN: YS3FD79Y04
Hip Hip Hurray. This ones out of here. New CIM arrived, program went right in. I did send both keys to Clear Com Technology's to have them virginized. Key programing went off without a hitch. If you are working with euro cars with security problems, these guys...
1996 Toyota Camry DX 2.2L No Start, Poor Idle Quality, Hesitation, Surge, Stall VIN: JT2BG12K0T
Thanks to everyone who responded so quickly! On 2 occasions, when the engine would act up, I happened to notice that the coolant temperature sensor would show a negative reading, such as -11 degrees or so. Upon returning to normal idle, the temperature would i...
2008 Toyota Tundra SR5 4.7L Poor Idle Quality, MIL Lamp on VIN: 5TBBT54128
The bank 1 secondary air injection valve was bad, neat test was to disconnect air hose behind check valve and start truck- had exhaust comeing out of the valve- comfirms bad. Repalce valve and clear codes- all is well. Before i opened this tech help i had cust... Trouble codes: P2440, C1201.
2008 Volkswagen Jetta S 2.5L starter VIN: 3VWJZ71KX8
I took the Identifix test drive and found fix for this car. The J681 terminal 15 power supply relay 2 was at fault. Thanks for all the help. We already got our two subscription for Identifix. I am very impressed with them.
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