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Prev Professional Automotive Repair Technical Discussions for March 5, 2013
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2001 BMW 740iL 4.4L Misfire, MIL Lamp on VIN: WBAGH83471
Hi BMW Techs This is a new customer and it was at another shop,before coming to our shop, they replaced the air mass sensor, but did not solve the problem with the misfire , we replaced the spark plugs because they were worn out, cleared all the codes and adap... Trouble codes: P, 1343 (062 - misfire at several cylinders), 062 (misfire at several cylinders), 050 (misfire at cylinder 1), 057 (misfire at cylinder 2), 054 (misfire at cylinder 6), 136 (throttle emergency operation)
1993 Buick LeSabre Custom 3.8L Stall VIN: 1G4HP53L6P
This car originally came in as a no crank problem. found the ignition switch was the culprit and replaced, had the correct resistance value for the key pellet. After this repair the car will start for about a second then the injectors shut down. The original c...
1996 Chevrolet Tahoe LS 5.7L lack of power VIN: 1GNEK13R0T
lack of power sometimes dosent matter speed 20 mph to 80 ,cold no codes runs fine most of time, fuel trims lt +3 to -3 st -2 to +5. when running good. all of sudden lacks power fuel trims lt +30 st +40 still no codes when it happens,will do it maybe 3 ...
1997 Chevrolet Tahoe LS 5.7L No Start, Stall VIN: 1GNEK13R4V
thank you all for looking this vehicle was towed in for a no start found no fuel pressure replaced fuel pump and filter all good customer picked it up worked good for a month then had vehicle towed in for no start when i went to push vehicle in it fired right ...
2001 Chevrolet Blazer LS 4.3L Hesitation, Surge, MIL Lamp on VIN: 1GNCT18W81
Hey GM techs out there! This Blazer is kicking by butt! Customer brought the vehicle in for hesitation and surge problem. Had codes for almost all the cylinders, and the random misfire. Other tech before me diagnosted it as a bad crank sensor. He read some inf... Trouble codes: P0300 (Random Misfire)
2002 Chevrolet Silverado 3500 6.0L fuel gauge VIN: 1GBJC39U22
we have replaced the instrument cluster and the fuel is showing fuel gauge is reading empty but the low fuel light is on dont know what else to try.
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDS13S44
Truck came to the shop knocking,we installed jasper engine,engine runs fine,but now we have mil light on and code po0016 cam/crank correlation problem.eng has good power and runs smooth.Tested voltage to solenoid with key on 12-13 volts goea away when we conne... Trouble codes: P0016, P0013
2004 Chevrolet Silverado 2500 HD 6.6L Instrument cluste VIN: 1GCHK23294
Good evening, Comes in with battery light on and message displaying "battery not charging". Volt meter in dash says 14 volts. Alternator output at either battery is 14.7 volts. Grey wire at back on altenator is showing a duty cycle. Brown wire has .77 volts ko...
2007 Chevrolet Silverado 1500 LTZ 6.0L Cylinder 1 Lifter VIN: 2GCEK19Y07
Vehicle came in for various driveability symptoms such as misfire at idle and under load, surge at idle, and check engine light on. Only DTC was P0300, random cylinder misfire. A check of the misfire counter and history showed some counts on all cylinders, but...
2007 Chevrolet Silverado 1500 WT 5.3L MIL Lamp on VIN: 3GCEK13387
Bank 1 and 2 read rich mostly at idle LT -8 MAF 4.9-5.5 @idle. Reset fuel comp and trim, cleaned maf no change. fuel pressure good air filter good cleaned throttle body Trouble codes: P0175, P0172
2007 Chevrolet Silverado 2500 HD LT 6.6L No Start, Stall, MIL Lamp on, Lacks Power VIN: 1GCHK23627
Hoping some good GM Diesel techs/ experts have run into this problem before and know the fix. We have sunk $1200 into this truck 3 months ago and she has not had any trouble over that time period. Now the problem has occurred again after shutting off and going... Trouble codes: P0191 (Fuel Rail Pressure sensor out of range)
2008 Chevrolet Silverado 1500 WT 5.3L RF Brake pads VIN: 1GCEK19JX8
Cannot explain why RF pads wear 3-times as fast as LF. No visual problems, no caliper mounting, hardware or pad sticking issues, hydraulic pressure relieves upon pedal release & caliper slides are lubed/free to allow equal amounts of rotor free spin (no drag)....
2012 Chevrolet Silverado 1500 LS 4.8L Pcm bcm VIN: 1GCRKREA7C
Have a customer with the above mentioned truck wanting to know if we could activate the factory remote start system on his truck? is it a matter of just getting a factory Key Fob ( with start button),Or is more needed ... P.S. customer does not want any afterm...
2002 Chrysler Sebring LX 2.4L MIL Lamp on VIN: 1C3EL46X72
Mil on no driveability concerns.P0601 Mitchell pin test reads replace ECU. Clear code stays off for several weeks and repeats. My question is has anyone seen this and is a ECU replacement the fix? Thanks in advance. Trouble codes: P0601
2009 Chrysler Aspen (Truck) Limited 5.7L Misfire, MIL Lamp on VIN: 1A8HW58T49
I hope that someone can point me in the right direction. What we have going on is that under a load the misfire detection activates and turns off the coil and the injector for #5 Cylinder. There does appear to be a miss or shudder just before the PCM turns the... Trouble codes: P0305 (Cylinder 5 Misfire)
2003 Dodge Intrepid ES 3.5L No Start
car came in over heating and water pump leaking out weep hole replaced water pump and thermostat engine runs good but not heat and won't crank when hot Found battery was bad customer took car and replaced battery with used one Car came back 2 days later overhe... Trouble codes: 344 (cam/crank sync)
2004 Dodge Ram 1500 Truck ST 5.7L starter / ignition/ lighting VIN: 1D7HA16D54
Customer recently bought this truck and soon after the headlights and interior lights started to flash off and on. He took the truck back to where he got it from and they replaced the headlight switch with one for fog lights (this truck does not have factory i...
2007 Dodge Caravan 3.3L No Start
Vehicle was brought in no start. They left the key on,drained the battery. Jumped it,tried 4 times and now locked out. I was told only the dealer can fix this,am I right? If there is another way please let me know. Thanks Trouble codes: P0513 (Imobilizer)
2007 Dodge Grand Caravan SXT 3.8L Steering VIN: 2D4GP44L37
I have a 2007 dodge grand caravan 3.8 lt. engine At slow speed turns in makes a vibration and moan. I know the 2005 had this problem and we had to change hoses. Has anyone seen this problem in the newer vans. Thanks, Glenn
2009 Dodge Journey R/T 3.5L Starter VIN: 3D4GGH7D69
Car had some cases of intermittent no engine start. Client sometimes was able to start after some tries. Another times it would not start at all. I had received car by tow truck maybe three times. All of then car started normally in the first try on shop!!! N...
2012 Dodge Charger R/T 5.7L No Start VIN: 2C3CDXCT5C
Hi guys I have this 2012. Charger. No crank I program the remote. Every thing went ok. But the car don't. Crank with the button if I Jump the start relay the car crank . Question No communication. With the abs module. It was. Hit. But. I have. Brake. Lights. A...
1999 Ford Ranger XLT 4.0L Timing Cover VIN: 1FTZR15X8X
Truck came into shop today with very slight water leak. Put dye in cooling system and found timing cover gasket leaking at block. Will need to R&R front cover to replace gasket. I dont ever remember doing a cover on one of these engines. Alldata shows raising...
2001 Ford Focus SE 2.0L Pats VIN: 1FAFP36331
Got myself into some deep doodoo again and seeking assistance. I replaced the lock cylinder, but both my snap on mt2500 and Ethos don't have a security access feature to allow me to erase the erase the code and program the new keys. Is there a way to bypass th...
2001 Ford F-250 Super Duty Lariat 7.3L Cuts out, Stall, Misfire VIN: 3FTNW20F41
P1316 memory code-idm dtcs stored in idm no codes in idm with my modis did all the under valve cover checks and replaced the idm. now it will cut out and stall like before only with no code at all im lost seems like when the cmp sensor fails so i took a stab a...
2001 Ford F-350 Super Duty XL 7.3L Surge, Cuts out, Misfire
geting missfire with knock sometimes pretty heavy knock this trk is maintained came in for stalling replaced cam sensor then was told about miss acts like fuel air will idle just fine at idle snap up to 2200rpm starts to miss and knock sometimes can snap to fu...
2003 Ford E-350 5.4L spark plug VIN: 1FTSS34L53
This vehicle came in with a misfire on #1 cylinder found a bad coil & plugs wore out. Sold an new coil & 8 plugs. Here where the job goes bad. One of the other plugs removed was for the three valve engine. Used a camera & looked into the hole looks like there ...
2006 Ford Focus ZXW 2.0L tailgate latch VIN: 1FAFP36N86
Hello. Big problem. Tail gate latch opens anytime. I repared wiring harness on tail door. Trouble already present. Tailgate opens with key remote, but not with dash switch. When starting engine or close a door, sometimes tail gate opens with vibration. I suspe...
2006 Ford F-150 XL 5.4L Spark plug
Ive done a bunch of these plugs with no problems so when 6 out of 8 plugs broke it was par for the course. I got 5 out but on the last one the Matco extractor tool broke off almost flush with the top of the plug tip. Anyone ever had success getting the broken ...
2008 Ford F-150 XTR 5.4L compass VIN: 1FTPW14V68
compass reads cal after a couple of days then starts reading correctly on its own.
2002 GMC Sierra 1500 SL 5.3L Misfire VIN: 1GTEK19T52
Truck came in today and the customer complaining about a "hiccup" between 48-52 MPH on the highway. Test drove felt like misfire, although no codes stored in computer. replaced plugs, wires,fuel and air filters. test drove truck again and at about 52 MPH on th...
2003 Honda Accord EX 2.4L axles VIN: 1HGCM71653
This car came in two separate times within the last month or so. The first time the right drive axle had completely rusted in two at the dampner ring. We replaced that axle with a FEQ/Worldpac axle, and glanced at the other and saw nothing obvious without remo...
2005 Honda Odyssey EX 3.5L Surge, Misfire VIN: 5FNRL38785
hello all this is a tough one when driving vehicle, at 51mph it will feel like it has a slight misfire, or shutter. like you are driving on the rumble strip. but no misfire on the counters, and does it after it shifts in lockup. pcm has been reflashed, honda s...
2007 Honda Odyssey EX 3.5L hard downshifts
Ok so this is my sisters van and is has had a intermittent hard down shift from 2-1 for about 2 years. It is now banging on all downshifts on a regular basis. Torque converter was replaced about 2 years ago under warranty for i think a shudder. I'm not sure bu...
2003 Hyundai Elantra GLS 2.0L Check engine VIN: KMHDN45DX3
Hi we have 1 hyundai elantra with a 2.0 liter engine.they drove it idles good most of the time good but then starts to idle very slow and surges.when that happens the check engine light flashes fast.with the scanner connected,we can read the sensors,but...
1993 Jeep Grand Cherokee Laredo 4.0L Hard start VIN: 1J4GZ58S4P
I HAVE A 93 JEEP 4.0 with a hard start when cold. It is flooding out the spark plugs. When I play with the throttle I can get it to start. My question is the scantool pids ECT 30 deg. IAT 30 deg. INJ pulse width 123ms. It seems to me that the pulse width is wa...
2000 Mazda Millenia 2.3L Cuts out, MIL Lamp on VIN: JM1TA2228Y
Car runs well after replacing timing belt, after a few short drives it went into limp mode with TCS, TCS OFF and check engine light, checked and found codes above, Checked ABV Valve and CAC Bypass Valve both working, checked vacuum hoses between valves and sol... Trouble codes: P1526 (ABV Vacuum Solenoid Circuit Open or Short), P1540 (ABV Charge Pressure Out Of Range), P1524 (Charge Air cooler Bypass Circuit)
2005 Mazda 6 i 2.3L No Start VIN: 1YVHP80C65
Need a little help here, this Mazda died on the road and wouldn't restart. We fixed this vehicle about two months ago for seperate issues (see repair history). There is no spark and no injector pulse. The coil has power but isn't being triggered by the PCM. Th...
2006 Mazda 3 S 2.3L in limp VIN: JM1BK32456
Thanks for any and all help. This car came from another shop stuck in 4th and a hard reverse. The shift light when put into gear will flash 1 then 4. when running only The indicator works normal key on engine off. Tested the power and grounds and found to be o...
2004 Mercedes-Benz E320 4Matic 3.2L Suspension VIN: WDBUH82J64
Hello MB techs. I hav a customer with an 04 E320 4M. The dash displays a fault of "Airmatic-Visit Workshop". I found the bulletin that describes this problem. I ran the tests and have what looks like a good reading for the rear sensor. seems like there might b...
2000 Oldsmobile Alero GL 2.4L Cooling Systems VIN: 1G3NL52T3Y
Vehicle sat for like a year or two, he brought it to the shop because water pump was leaking. Replaced water pump and thermostat, double checked timing was correct put it all back together and started up. Started right up fine ran good but after a while the ti...
1999 Saab 9-3 2.0L No Start VIN: YS3DD58N9X
Hi, this saab has no spark coming out of the cassette. It has inj pulse and fuel. While cranking the tach goes up once and stays down. I believe I need a new cassette but with thge price tag being what it is, is there a way to test it. I have voltage on green ...
2006 Smart Fortwo Passion .8L Glow plugs inoperative VIN: WMEAJ00F46
Hopefully somebody can lead me in the right direction here. My biggest problem is lack of information/wiring diagrams on this car. I bought this from a customer because it needed a full rebuild - rings, valves etc. The car runs perfectly. Check engine is on wi...
2002 Toyota Prius 1.5L MIL Lamp on VIN: JT2BK18V82
Have 2002 prius that starts and runs. Triangle on dash illuminates immediatly after starting or clearing codes. P3000 only code returning. Now we have 2 HV batteries and are trying to make one good one. Original battery had 3 bad modules 6.3V compared to 8.2V.... Trouble codes: P3000
2003 Toyota Camry SE 2.4L Battery VIN: 4T1BE32KX3
Car came in on a hook with a compliant of a slow crank the last 2 days and a no crank no start today. It did crank slow but started when it got to us. The battery tests at 12.93 volts and 757 CCA from a 725 CCA battery. Parasitic Draw Test found 178 Ma draw on...
2004 Toyota Prius 1.5L hybrid drive VIN: JTDKB20U44
We put a battery in the vehicle (AGM in trunk) and it had the P0A4B code. It was at closing and she left. After 1/4 mile, the car died and we towed it back in. She then stated that "similar problems have been occurring" When powered up, the vehicle cannot be s...
2007 Toyota Sienna LE 3.5L No Start
I had this van come with 2 missfires and found that mice had eaten the injector wires on two injectors. We repaired the wires and solved the miss but when we restarted it the injector wires on # 4 injector had touched each other when they were eaten and caused...
2010 Volkswagen Jetta TDI 2.0L High Idle VIN: 3VWRL7AJXA
Hey guys, I have a weird one here, hope you guys can point me in the right direction. Customer came is with a intermittent high idle problem. I drove it, and while you're driving, as you come to a stop, the idle would go from 825 to approximately 1,000 rpm, an...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 BMW 325i 3.0L Water Pump VIN: WBAVB13586
Fixing might be a little premature, but the car is gone. I replaced the water pump and tried to bleed it with the before mentioned proceedure but I never got the pump to start. So I started it up and the pump is working, so I blead the system by idling the car...
1996 Cadillac DeVille Concours 4.6L MIL Lamp on VIN: 1G6KF5294T
Well all good suggestions...Thank you! I really could not see putting another MAF on this vehicle. I really felt mechanical issue as suggested. I choose to use the FLuke PV350 on all cylinders. Cylinders 3 & 5 showed an erratic spikes (compression was good) (P... Trouble codes: P0171 (Fuel Trim System Lean Bank1), P0174 (Fuel Trim System Lean Bank2).
1968 Chevrolet Chevelle Malibu 6.5L Vent VIN: 138678B166
Wow! There ara alot of Chevelle guys out there. Thanks so much for4 all the good vendors. I have found everything I need to finish this job and more. Again. Thanks to all. Regards Brad
1984 Chevrolet C10 Scottsdale 5.0L MIL Lamp on VIN: 1GCEC14F7E
Thanks for all the replies. Got alot of laughs. We couldnt determined if we truely had a problem with the cluster or icm side. Customer wanted the system to work like it was factory. We ran out of time, he needed the truck back. Customer well bring the vehicle...
1999 Chevrolet Tahoe 5.7L Poor Idle Quality, Hesitation VIN: 3GNEK18RXX
Hey guys, thanks for all the help. Turned out to be a fuel pressure regulator that was just slightly weak. The running pressure was 58 psi, and 60 koeo. Started restricting the return line to increase pressure a couple of pounds and everything straightened out... Trouble codes: P0171 (System lean bank 1), P0172 (System lean bank 2).
2000 Chevrolet Venture 3.4L Cooling fans VIN: 1GNDX03E7Y
Thank you for the help. The gauge in the cluster was bad. It was reading high by about 1/8 to 1/4 which is Why I was thinking it was overheating before the fans turned on. All the other gauges were reading correctly. Thank you again for the replies.
2005 Chevrolet Cobalt 2.2L 1-2 shift VIN: 1G1AK52F95
thanks fellow tech tcm had too be flash with tech 2 flashed and vechile runs great thanks for your help
2005 Chevrolet Cobalt LT 2.2L No power, wont rev VIN: 1G1AZ52F75
Thank you to everyone who replied.. The actual problem boiled down to the exhaust cam had jumped 2 teeth off. Thank you to everyone who helped on this. This was one of those nightmares that once you get it figured out it makes sense, but until you find the pro... Trouble codes: P0101 (Maf), P0106 (MAP or BARO out of range), P0068 (MAP/MAF Throttle Position Air Flow Corrolation).
2007 Chevrolet Suburban 2500 LT 6.0L Cuts out VIN: 3GNGK26KX7
Thanks to all who replied, it was all very helpful. We ended up finding a wiring harness back by the front drive shaft that had rubbed through. It was at the rear of the front shaft, by the transfer case. There was a 5 volt ref. wire that had rubbed through an... Trouble codes: P0335.
2007 Chevrolet Malibu LS 2.2L Chmsl VIN: 1G1ZS58F37
Update/Fix Narrowed it down as I stated to a under hood fuse box problem, customer wants cheap so junkyard fuse box was located and installed. Vehicle is fixed and out the door! Customer is happy with price and has decided to purchase four new tires for the ...
2008 Chevrolet Tahoe LTZ 5.3L Noise VIN: 1GNFK13018
I beleive Bill nailed this one on the head. Upon driving it I finally got the squeal to happen and it was in the rear which we had also done brakes on, It had new antirattle clips but the pads did not fit very tight on the slides. We ordered up another set and...
2008 Chevrolet Express 1500 4.3L No Start VIN: 1GCFG15X18
Sorry to be so long closing , but owner couldn't spare it to get it back .Van finally ended up going to dealer who guess what couldn't find the problem either. My best information says they want to try a bcm. Not sure if that will solve it.I believe the proble... Trouble codes: P0116, P0300 (Multiple misfire).
2008 Dodge Charger SE 3.5L cranking VIN: 2B3KA43G18
Customer took car while waiting for responces, and the next week called and said everything is back to normal. While i greatly appriciate everyones time and effort to help a fellow tech, this one will allude us. Thanks again.
2002 Ford Excursion Eddie Bauer 6.8L Stall, MIL Lamp on VIN: 1FMNU43S92
As most of the replies mentioned bad coils can cause these symptoms,and that was the case. However worn spark plugs were the cause of the bad coils. Replaced all coils and plugs and all is fine. Need to mention here that a couple of replies were talking about ... Trouble codes: P1812 (4X4 module select circuit malfunction), P1832 (Unknown), P0720 (Vehicle speed sensor short/ int. signal), P0722 (No signal from speed sensor).
2005 Ford F-150 King Ranch 5.4L Fuel smell VIN: 1FTPW12535
I figured we were not the only ones with this problem. I believe tightening the spark plugs fixed the first one we had troubles with, but the driver lost his job and it was a company truck so we did not get any feedback on that one. Most of the replies were fo...
2006 Ford Explorer Eddie Bauer 4.6L Ipc, Inop VIN: 1FMEU74816
2006 Ford Mustang 4.0L MIL Lamp on, wrench light VIN: 1ZVFT80N46
Well I will have to say its fixed, we originally put a new throttle body in it and it still acted up. Then after all of the items I stated in my post were completed with no success I decided to call my ford dealer parts man and this time I got a different gu... Trouble codes: P061B.
2006 Mazda 6 S 3.0L MIL Lamp on
I would like to thank everyone for the replies. Tritan was correct the purge solenoid was flowing all the time. Trouble codes: P0131, P0151.
2000 Mitsubishi Eclipse GS 2.4L Poor Idle Quality, Stall VIN: 4A3AC44G5Y
Well Im gonna call this one semi-fixed. I did scope out the idle circuit and wave patterns were normal with one of the wave patterns was upside-down??? I assume that points to an ECU problem. I then removed the ECU and took it appart and saw no ...
2002 Mitsubishi Galant ES 2.4L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 4A3AA46G12
Thank you to all who replied and provided help for this tech help request! Tam from Texas got me thinking. The resistance for the wires were not identical, cylinder one being about 640 Ohms, cylinder 3 being about 350 Ohms. I took it for granted that because t... Trouble codes: P0303 (Cylinder 3 Misfire Detected).
2000 Nissan Sentra GXE 1.8L Hesitation, MIL Lamp on, sluggish VIN: 3N1CB51D9Y
thanks to all that replied. timing chain ended up being stretched. replaced chain and all timing components and all is well. I did find a very good diagram of what the cmp and ckp should look like. its a pdf though. i will try to post it to my waveforms al... Trouble codes: P0335 (CKP sensor circuit problem).
2008 Nissan Altima 2.5L No Start VIN: 1N4AL21E58
Thanks to Wayne and Timothy that replied. There response helped me to decide to try and replace the IPDM, corroded connectors and broken case before replacing the BCM and key slot as well. Replaced IPDM bypassed 5 corroded connectors and car ran when key fob w... Trouble codes: P1610 (NATS malfunction), P1612 (NATS malfunction), B260A, B2618 (Bcm), B2607 (steering lock relay), B2108 (steering lock relay on.).
2002 Oldsmobile Silhouette Premiere 3.4L No Start, MIL Lamp on VIN: 1GHDX03E72
Looks like a oil soaked crank sensor was the problem. Could not tell how bad it was until crank pulley was removed. Van has run fine for four days. Many THANKS to the one who referred me to scanner danner on youtube. Thanks to all who shared information! Trouble codes: 336 (24x crank sensor).
2003 Porsche Boxster Roadster 2.7L MIL Lamp on VIN: WP0CA29883
Thanks guys. The evap pressure sensor is right under the battery and very accessible just like the two replies said. The sensor was not showing a reaction to my pressurizing and de-pressurizing the system but the customer declined any repairs so I can't say th... Trouble codes: P0455, P0451.
1996 Subaru Legacy LS 2.2L MIL Lamp on VIN: 4S3BK4553T
Thank you all for your help.I did put vehicle in the self test mode,and the fuel tank pressure solenoid(located in front of the fuel tank)clicked.I checked the resistance of the solenoid,27 ohms,has 12.5 volts.Test cicuit resistance,no problem found.So,2 weeks... Trouble codes: P1401.
2007 Toyota Yaris S 1.5L MIL Lamp on, Low power VIN: JTDBT92347
This problem is fixed! I would like to say thanks to all of you that come on here to help others, Thank You! The problem with the fuel pressure and inj test is that they won't test bad for a intermittant problem as you all know (although I did test both). You ... Trouble codes: P0304 (Cyl 4 misfire).
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