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Prev Professional Automotive Repair Technical Discussions for May 11, 2012
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2004 Audi S4 Avant 4.2L Engine knock/tapping VIN: WAUPL68E64
4 months ago tapping developed at rear of right head and increases with RPM's. No codes and no loss of power. I suspect chain rails but need to verify. Any advise from Audi techs would be most helpful.
2004 Audi S4 Avant 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUPL68E04
Vehicle continues to exhibit lean running condition right side bank only. Also misfire on cylinder 5 (left bank). We have smoke tested in the hope of locating intake leak, but so far have found nothing. The leak appears to occur only under running conditions. ... Trouble codes: P1136 (Fuel trim), P0305 (Cylinder 5 misfire)
2002 BMW 530i 3.0L Misfire VIN: WBADT63442
Hello my fellow techs.Got this 530i that had blown headgasket.We swapped heads with matching numbers.I have misfires on #4cyl and #6cyl when cold started.After a few moments # 4cyl seems to smooth out,but # 6 refuses to quit missing at idle.When you give it th... Trouble codes: P0304, P0306
2001 Buick Century Custom 3.1L Oil gauge VIN: 2G4WS52JX1
We have this buick that has oil gauge built into info part of cluster, it bounces around from 32 to 0 we tried a new sender and that did nothing. We put a manule gauge and it reads a steady 32 psi. It looks like the sender sends a signal to the pcm and then to...
2006 Cadillac CTS 2.8L 2-1 shift 3-2 shift VIN: 1G6DM57T96
While driving this vehicle it has extremely harsh downshifts at all speeds.. You let off the gas and it downshifts savagely... Same codes as when it came in and doing the exact same thing before it was repaired... Replaced mlp, rebuilt trans with epc and conve...
2003 Chevrolet Impala 3.4L Stall VIN: 2G1WF52E33
Vehicle came in complaint of hard to start and stalling. Found connector to TPS damaged. Repaired and vehicle now starts and runs good. Problem is it will occasionally stall, always starts right back up. It does not set any codes when stalling. Monitoring Pids... Trouble codes: P0122 (TPS circuit out of range), P1122 (TPS circuit low)
2004 Chevrolet Tahoe LS 5.3L MIL Lamp on VIN: 1GNEK13Z14
Vehicle back now with a p0332 knock sensor code. I did the flow chart test. everything tested good. So i took the intake back off to look at sensors themselves. What i found is that the back senors was rusty. I did this myself so i know that the sensor was rep... Trouble codes: P0332
2008 Chevrolet Impala LT 3.5L dome lamp VIN: 2G1WT58KX8
Here goes, I have a 2008 Impala in the shop right now that has been diagnosed by dealer to have had a bad door ajar switch. I replaced the switch with a OE switch assy just a few minutes ago and the problem persists. Customers main concern is that dome lamp st...
2006 Chrysler PT Cruiser Touring 2.4L Charging VIN: 3A4FY58B96
hello friends, having a intermittent fault with charge warning indicator in dash comes on while driving. the alternator is charging when the warning light is on or off while engine running 14.1 volts 70+ amps. battery is in good condition. if you cycle the ign...
2007 Chrysler PT Cruiser 2.4L Ignition/Cluster VIN: 3A4FY48BX7
Symptoms; Insert key in ignition and turn and almost always a 10 second delay between time key in and vehicle actually becomes operative. The car will not crank during this period and the cluster (except for showing mileage and door ajar) remains dark. After t...
1993 Dodge Dakota 3.9L Excessive Emissions, Poor Idle Quality, Stall VIN: 1B7GG26X5P
This is the boss's truck and I'm 3rd one to get it in the shop. First tech replaced chain due to noise behind cover and that is now fixed. Second tech did front end repairs and was fighting the alignment and after several test drives and resealing grommet for ...
2001 Dodge Ram 3500 Truck 5.9L abs lite VIN: 1B7MF33671
came in abs motor cooked run over nite never shut off replaced motor and module now have lite flashing i now have the following codes 52/53/54/82/83 i do not know the gear ratioso ive not tryed to program it yet i do not know if this is a one time programto wh...
2003 Dodge Sprinter 3500 2.7L No Start
van came in for extended crank, and hard start, we changed fuel filter, glow plugs and controller, and inlet plastic fuel line going fron the fuel filter to the low pressure pump. it got better for a month but slowly got worse, now it will only start with ethe...
1992 Ford E-150 Econoline XL 5.8L No Start VIN: 1FDEE14H3N
This only seems to happen when I work on a relatives vehicle. Van came in as a crank no start. Checked spark-no spark. Tested and found the coil was bad-shorted. Installed a new coil and it had no spark. Replaced the ignition module-had good hot spark. Engine ...
1994 Ford E-350 Econoline 7.5L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1FDKE30G2R
sputters idles up and down and cuts off can wait appx 20 minutes and veh will start back up has code 624 any help greatly appreciated Trouble codes: 624
1997 Ford F-350 7.3L Mechanical VIN: 1FDKF37F2V
Hi every one, i have an ambulance that has a no start condition. I hooked up a suitable scanner, got communication but no codes as this being an ambulance it has a master power switch and some one had turned it off before i came so i suspect all codes if it ha...
2005 Ford Five Hundred SEL 3.0L temp. blend door VIN: 1FAFP24125
customer complaint of cold air on drivers side, and no so cold air on passenger side air vents while a/c is in cold position. I removed the passenger air door motor, and manualy moved the door while car is runninjg with a/c on . Passenger side temp does change...
2007 Ford F-250 Super Duty XLT 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTSX205X7
truck cam in running rough all the time,found codes for cam over retared bank 2 and over advanced bank 1.replaced both phasers and timing components with oreilly parts,replaced left side cam soleniod from truck will run ok driving down the highway but... Trouble codes: P0022 (Cam over retarded bank 2), P0340, P0345, P0349
1997 Geo Metro 1.0L Cuts out VIN: 2C1MR2265V
This vehicle ,after warm accelerating at 55 if I decelerate and than just start to push back on the gas pedal .The Geo will lose voltage to the injector,after you coast a little bit to about 45 mph voltage will kick back in to the injector.The car idles fine.I...
1998 GMC Jimmy Envoy 4.3L security VIN: 1GKDT13W5W
thanks in advance for your help. i just put a heater core in this truck and after putting back together it will not light on steady all the time.key on or key off. tried relearn will not reset light stays on steady.also cannot comm. with bcm but...
1999 Honda CR-V EX 2.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JHLRD1866X
When first started cold and thrown in gear sometimes will idle low and die/stall. If given more throttle in park will bog down and back fire through intake and hard to get it to go to even 3k rpm. When warmed up will not go above 5k rpm in park/neutral. Once w... Trouble codes: P0132 (HO2S S1 Voltage High - Happened only on the last of 10 drives), P0301 (p0302-), P0302 (p0303-), P0303 (p0304-), P0304 (testing and results)
2005 Honda Civic EX 1.7L Cooling Systems VIN: 1HGEM22915
buddy's girlfriends car. brought to me cause it was overheating and she did not relize. girls right! so the radiator is leaking bad. replaced it and the thermostat. has been fine for a couple months, now it starts overheating after a 20 minute drive on freeway...
1992 Isuzu Rodeo LS 3.1L Slave Cylinder VIN: 4S2CG58Z2N
HELP! We installed the clutch assembly and thought bleed the system and be done with it . Oh no ,we have put enough brk. fluid through the lines we could float the thing. We pressure bleed gravity sucked tried every combo ,still a soft pedal ,move's the t/o b...
1999 Jaguar XJ8 4.0L trim under inner door latch VIN: SAJHX1046X
I began the process of removing the inner door latch release handle on the right rear door, which I have done on earlier models before, with removing the trim (plastic) under the latch. On the previous cars (XJ-6) that I have done this on, to remove the wood t...
2003 Jeep Liberty Limited 3.7L CD player VIN: 1JAGL58K13
I replaced the battery in the vehicle and now the radio doesn't allow me to play a CD. It just toggles between AM/FM and the CD option never comes up. It has a 6 disc changer and everything is factory.
2007 Kia Rondo LX 2.7L MIL Lamp on VIN: KNAFG52647
This vehicle came in with codes p0171 and p0174, tested air mass meter by calculated load and was only getting 67% under full throttle, checked voltage reading at air mass meter and was getting approx. 2.4 volts @ 3,000 rpm's. So I relaced sensor with a delphi... Trouble codes: P0171, P0174
2005 Lexus GX470 4.7L MIL Lamp on VIN: JTJBT20X85
Got a boomerang here. (see original post from 5-9) Replaced the air pump & both rear air valves. Ran vehicle till monitor said complete and sent it out. Mil came back on in a few days, then went off. Came back on again. Did not replace the #1 air valve as it b... Trouble codes: P1442 (2nd air valve stuck closed), P1445 (2nd air valve stuck closed)
2003 Mercedes-Benz SL500 5.0L Tilt Telescopic
This 230 chassis [sl500] has b1410 m20/m2 code [steering column up/down function],also has b1017 m6/1 [wiper motor terminal 31b]not in the stop position. These are coming up in the left sams module not the steering column module. I did replace the n80 module [...
2008 Mercedes-Benz ML63 AMG 6.3L Wiring harness VIN: 4JGBB77E78
During replacement of leaking intake manifold gaskets found oil in connectors of fuel injectors. Connections of cam adjusters, cam position sensors, throttle bodies, IAT all clean, connector of oil temp sensor at front of right head wet. Have not yet checked e...
2008 Mitsubishi Lancer ES 2.0L Srs
Hello Dear friends, i got this lancer 2008 with SRS light on trouble code is 22 D-AB SQ TRBL2 . checked autodata and other resources but no info for this. thanks in advance efi
1999 Nissan Altima GLE 2.4L MIL Lamp on VIN: 1N4DL01D6X
We don't see many Nissans but we have fixed a few of these for the same code P0400 in the past and have usually found clogged ports or bad BPT valve, but this one seems different. EGR valve opens with manual hand pump and engine stalls if held open. Vac hoses... Trouble codes: P0400 (low EGR flow)
2002 Nissan Xterra SE 3.3L MIL Lamp on VIN: 5N1ED28T52
Truck came to me with MIL on. Researched code found mod/fix at 2-Fronty-ODB2-code-P0328-or-PO327.html prior to mod MIL would illuminate at every start after clearing code. After mod MIL occurs approxi... Trouble codes: P0328 (Knock Sensor)
2004 Nissan Murano SL 3.5L Nats VIN: JN8AZ08T94
Programming a key and I need The pin code for NATS, Dealers are being unhelpful. BCM code is 4F641 and vin is [...] Any help would be greatly appreciated!
2008 Nissan Versa S 1.8L MIL Lamp on VIN: 3N1BC13E58
This car came to us with a noisy engine.Replaced with a used engine from the same year and same engine size Versa. After replacing engine the vehicle had no spark. Found erratic triggering of coils and determined we had an ECM failure. Replaced ECM with a used... Trouble codes: U1001
2007 Porsche Boxster S 3.4L Radio Unit VIN: WP0CB29847
Well here we go again. We have this car in our shop and was brought to us with the Navi/ Radio unit shutting down intermitantly. Had customer bring it back when problem was more frequent. Checked and found Circuit 30 and 31 ok. Checked for a Can Wake up signal...
2001 Saab 9-3 2.0L Poor Idle Quality VIN: YS3DD58H31
another saab story- when first start in the morning, idle goes high like normal and 2 seconds later when it settles, car missfires, surges, in about 6-8 seconds the car settles in an problem goes away. replaced the cassete and plugs ( had autolite) to try and ... Trouble codes: P0300
2008 Saturn Astra XE 1.8L Ipc VIN: W08AR67158
GM techs I need a huge favor. I'm trying to program a new IPC in a 08 Saturn Astra. When I endeavored to program it like any other GM module (Iv'e done a couple hundred GM modues) I was prompted to enter the security code, mileage and chose Miles or Km. Then i...
2003 Toyota Highlander 3.0L transfer case VIN: JTEHF21A73
Customer drove her all wheel drive highlander after the fluid had leaked out of her transfer case & now she needs a new one - all data & identifix both say you have to pull the engine & transaxle to replace the transfer case (about 14 - 15 hours)- it appears t...
2002 Volkswagen EuroVan MV 2.8L steering wheel stiff and grinding noise VIN: WV2NB47012
good morning! I had a 2002 euro van in this morning for service and the customer stated that his steering seemed tight and was making noise. sure enought both were true. upon limited inspection a grinding noise is coming from the upper steering column and a st...
2003 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWPD63B93
After diving 40 miles the engine fault code #16395 (p0011) will set. I have rechecked the tiiming belt and chain marks several times. The timing chain solenoid is working. I have checked both the camshaft and crankshaft sensors signal. I have even tried new se... Trouble codes: 16395 (Camshaft advance p0011)
2005 Volvo V70 2.4 2.4L MIL Lamp on VIN: YV1SW64035
Being a FWD car, I thought replacement would be easier than on an AWD XC70. But, no, the three torx screws for the LDP are not accessible without removing the tray it and the canister sit on. Book procedure calls for removing exhaust system from cat back (I lo... Trouble codes: P2407 (Leak detection pump heater circuit)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW 740iL 4.4L Excessive Emissions, MIL Lamp on VIN: WBAGH83421
thank you very much you guys this one is fixed, Patrick from Ohio nailed it down, in fact solenoid was stuck, no movement when actuated, and the smoke... well something happened with the dipstick, it is not reading properly it had 2 quarts over. Prior to this,... Trouble codes: P0012.
2004 BMW 745i 4.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: WBAGL63534
Thank you everyone for all your replys's. I have to hand it to TONY from Minnesota as he hit the nail right on the head. I removed the bank B valve cover and put the vehicle on TDC and sure enough the exhuast cam was fully advanced the whole 60 degrees and has... Trouble codes: 274E, 2743 (Misfire Cylinder 5), 2745 (Misfire cylinder 8), 2748 (Misfire cylinder 7), 2746 (Misfire cylinder 6), 27BC.
1993 Chevrolet C1500 Cheyenne 4.3L warm air VIN: 2GCEC19Z9P
Thank you to all that replied, when I removed the lines to clean them and replace the orfice tube I inadvertantly put the lines on backwards at the condensor. yeah I know... call me what you want. and for all the replies I got about my gauges, they work fine. ...
2000 Chevrolet Express 3500 5.7L Power steering VIN: 1GBHG31R7Y
A few said change the pump again, so after messing with the valve on the back of the pump I installed another AC Delco reman. It fixed the problem but a few others said they are not very good and to install a new pump and not a reman. Now Im worried I'll have...
2007 Chevrolet Tahoe LTZ 5.3L Misfire, MIL Lamp on, tick noise VIN: 1GNFK13027
Read the repise- thanks guys, with the miss at idle and positive lifter noise i Talked to customer and we decided it was probably a bad lifter or cam as some of the replies mentioned. Since the truck had 100,200 miles it was just out of warranty so the dealer ... Trouble codes: P0300.
2005 Dodge Ram 3500 Truck SLT 5.9L No Start VIN: 3D7MS48C35
Thank you to all that replied. Replaced the underhood fuse box. All is repaired! Trouble codes: P0628 (Lift pump circuit low voltage).
1975 Ford Mustang II 5.0L tach VIN: 5F04F21862
thanks for the help. i had called msd first that is how i got the adaptor. i called back and asked for a diagram it got here about the same time i opened this help is the red/lt green wire. after all the trouble i know why there is a aftermarket tac...
1991 Ford F-350 Custom 7.5L Misfire VIN: 2FDJF37G0M
thanks for all your help, after haveing someone with a pressure transducer come over and scope the car, although it passed the noid light test, we found that the wire for the injector for cyl#1 was hanging on by a thread, we fixed the broken wire and i...
1995 Ford Explorer Eddie Bauer 4.0L No Start VIN: 1FMDU34XXS
We ended up changing the fuel pump, filter, and relay Thanks everyone for the help Trouble codes: 542 (Fuel pump circuit open).
1999 Ford Ranger XL 3.0L No Start VIN: 1FTYR14V1X
I want to thank everyone that gave the support with so many email replies,and yes most of you were right the computer is at fault, the ground signal is not generated,upon cranking or with key on engine off what I did is i ground the signal wire at the computer...
2000 Ford F-150 Lariat 5.4L Engine VIN: 1FTRX17L7Y
Thanks for all the info, went with the first fix procedures that were recommended and were a first check before going any further, checked all resistance on ignition coils, all ok at this time checked resistance on all injectors ok at this time around 1.3 1.5 ...
2000 Ford F-150 Lariat 5.4L rear brake lights VIN: 1FTRX17L7Y
Once i got wiring route of system thanks too all of you, i found power acually goes through the third bulb to complete circuit found bad buld replace bulb and a overheated looking socket and all is good at this time thank you all for your support
2005 Ford F-150 FX4 5.4L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FTPX14535
oil pressure was the issue. bandaided (iknow) with thicker oil and advised to get rid of vehicle. customer did not want to replace engine. Trouble codes: P0022 (Bank 2 cam retarded).
2007 Ford F-350 Super Duty XLT 6.0L cooling system VIN: 1FTWX30P07
Thanks for all the great info,we ordered a tool online and removed all 8 injector cups (we couldnt see any visible holes in any cups)and installed 8 new cups and the problem was solved.Thanks again for the help
2005 Honda Accord LX 2.4L No Start VIN: 1HGCM564X5
Thanks for all the replies. Just about everyone was correct. We did compression and leak down test. It seemed to be fine as far as valves sealing (I was afraid they had bent, but we got lucky). Since I did not do the initial timing chain I could not be sur... Trouble codes: P0341 (Vvt stuck in advance), P0335 (Ckp ckt 1 malfunction).
2007 Honda CR-V EX 2.4L Door Locks VIN: 5J6RE48797
Okay, We got this one Fixed. The Problem lies in the Drivers door latch as well as the other latches. The Drivers door lock would unlock mechanically and unlock the other doors. I talked to honda and they said they sell a boat load of these to the point where ...
2000 Jeep Cherokee Sport 4.0L Idle Air control circut VIN: 1J4FF48S5Y
Thanks guys. James you were right on with this one. The harness was rubbing on the fuel rail.Thanks for the help
2003 Jeep Grand Cherokee Limited 4.7L abs VIN: 1J4GW58N83
Hi every, thank you for all your time to support us, specially thanks to Alex [...], it was the ground G 107 on left side apron hidden behind plastic wire harness box, the 2 ground ring wire were there but NOT even bolt in! I over check it after find it ha...
2008 Jeep Grand Cherokee Laredo 3.7L Poor Idle Quality, lacks power VIN: 1J8GR48K78
Thanks for the help guys- as we stated no duplication of the condition was possible however when talking with the customer she stated later the issue only occured from stops and it felt like there was a disconnect from the engine when stepping on the throttle....
2000 Mazda Protege LX 1.6L immobilizer VIN: JM0BJ10P10
Fuel pressure OK. Spark jumps 20mm gap "OK". Customer was in a hurry and took it to dealer. Thy found a faulty timing belt, which I was going to check but didn't get the chance. Thanks for all the help.
2000 Nissan Frontier SE 3.3L Ignition System VIN: 1N6ED27T5Y
2003 Nissan Altima SE 3.5L Suspension
thanks for all your replies, after changing 2 control arms and the links i decided that i would change the right side strut and see what happens bam!!! car fixed imagine that, dealer struts going bad after just 2 years... thanks for all replies
2006 Porsche 911 Carrera S 3.8L oil pressure gauge VIN: WP0CB299X6
So, We put a manual oil pressure gauge on it. Our results were as follows: cold start pressure goes up to about 6.5bar, as the engine begins to warm up the pressure reading begins to drop. @ operating temp idling, reading 2bar. With the engine fully warmed ...
2002 Saturn Vue 3.0L No Start VIN: 5GZCZ63BX2
well thanks to everyone that repied. had to send to the dealer to have bcm installed and programmed. just our luck that it went out on us. glad to see not a common problem but suggest to be carefull on these fine autos. Trouble codes: P1629, U2107.
2004 Subaru Forester XT 2.5L outside temp reading VIN: JF1SG69634
A big thanks to Calvin who shared the self-test info! We will be getting the car back in when possible and I am sure with the test info we will be able to locate the issue. Thanks again to all that offered help and a BIG THANKS to Calvin! Greg and crew
1995 Toyota Camry LE 2.2L Radiator VIN: 4T1SK12E3S
radiator fixed problem.wasn't sure if engine oil cooler was leaking because slime in radiator looked black which is usually associated with engine oil where as trans oil in radiator is pink in color.
1995 Toyota T100 DLX 3.4L clutch VIN: JT4VD12E7S
The clutch, pressure plate, pilot bearing, and throw out bearing were replaced. After these repaires were made the pedal felt a lot less stiff. The stiff pedal was what was causing the clevis to break on the master cylinder. Thanks for all the info guys!
1998 Toyota RAV4 2.0L No Start VIN: JT3HP10V0W
I found a small bare spot in feed wire on lower right side of dash. Shrunk wrapped and retaped. Car has been on road for two weeks without any failures. Thanks for replying. As always one of the best tools in shop.
1996 Volvo 850 GLT 2.4L Poor Idle Quality, Misfire VIN: YV1LS5542T
well we decided to try a compressor to see if that took care of the problem but have not been able to get car back for repair will update if they come back Trouble codes: P0300, P0301, P0302, P0303, P0304, P0305.
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