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Prev Professional Automotive Repair Technical Discussions for February 5, 2013
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2002 Audi A6 Quattro 4.2L cam/crank sensor VIN: WAUML64B82
this car seems to run fine but keeps throwing out check engine lt. the codes that are present are po1340 or 17748,po300 or 16684,po303 or 16687,po305 or 16689. we have checked cam timing with locking bar and crank pin also checked timing chain marks, all line ...
1999 BMW 528i 2.8L MIL Lamp on VIN: WBADM6337X
abs light on and check engine light we think speed sensor is in right rear of car abs sensors in front were bad those codes gone just have p0500 not sure where to go next. Trouble codes: P0500
2000 BMW 328Ci 2.8L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: WBABM5346Y
car came in with a serious misfire.scaned the car code 242 plus multiple cylinder misfire cleared code. only code po305 returns. replace spark plugs and improved now car only misfires on cold start ups on cyl 5 also swapped coils,injectors,checked co... Trouble codes: 242 (cylinder 5 misfire)
2003 BMW 325i 2.5L Misfire VIN: WBAEV33453
Greetings all, First off all thanks to everyone for taking the time to help me figure out this hair puller. First car came in with multiple misfire codes customer stated another garage had just changed the spark plugs. First off I cleared the codes and starte... Trouble codes: P1351 (Misfire cylinder 5 with fuel cutoff)
2004 BMW 645Ci 4.4L MIL Lamp on VIN: WBAEK73414
I replaced Timing cover gasket for leaking when I startedthe engine check engine light came on with codes. Figured I broke the sensor so replaced with a new one same code. Very lttle info on alldata for this code. I checked wires none broke or pinched. Also th... Trouble codes: P0390, 27C0
2005 BMW 760Li 6.0L low power VIN: WBAGN83505
the car come to us from BMW per customer request & we found both cats melted so we ordered & put them both on now the whole lft side is not running we can add fuel into a vacuum port and get it to run. has anybody seen this before. thanks in advance
2005 BMW X5 4.8is 4.8L Suspension VIN: 5UXFA93515
This vehicle came to me a couple of years ago with a suspension inop. message. At the time it had several codes and I would clear them and sometimes get the same back other times different codes. What was consistent was that the left front voltage reading woul...
2005 BMW X5 4.8is 4.8L No Start VIN: 5UXFA93515
There are no codes in the DME, the EGS has codes 51B0 and 4E87, the EWS has code 0F for power on reset, the DSC has codes 5F42 and 5EB1, the VTG has code 55C4 no message from DSC, the KOM has codes BD and BF. The vehicle will at times crank and crank and not s...
1995 Buick Riviera 3.8L eng temp gauge VIN: 1G4GD221XS
1995 Buick riviera came in with the temp gauge inop and prndl on dash stuck on drive. the prndl i thank is the position switch on the shifter but the temp gauge ican't fix. I have ohm both uart data wires from the pcm to the instr. cluster both were .3 to .4 o...
2008 Buick Lucerne CXL 3.8L No Start VIN: 1G4HD57298
Vehicle was towed in no start. Fuel pump not getting power from fuel pump relay. Coil side of relay has ground and power to the coil is being given when the ignition switch is turned as designed. What is happening is the 12 volt supply from the fuse drops to a... Trouble codes: P0230 (Fuel pump relay control circuit)
2003 Cadillac DeVille 4.6L starter VIN: 1G6KD54YX3
car came in intermitted no start no crank scan tool data shows crank request checked grounds at alternator bracket at trans and near battery swapped relays can jump relay and car starts and stalls have power at pin 6 yellow wire when key is in crank position c...
1996 Chevrolet K1500 Cheyenne 5.7L scan tool data VIN: 2GCEK19R3T
vehicle came in with burned transmission. customer bought it that way. we rebuilt the trans, installed transgo sk4l60 shift kit and a reman converter. drove great, no dtc's, good lock up, good trans fluid temp. fixed right? not this time. came back about 6 we...
2004 Chevrolet Express 2500 LS 6.0L No Start, Poor Idle Quality, Cuts out VIN: 1GCGG25U84
Have been working on this for a while now, trying to track stalling issue. Vehicle will not run unless holding accelerator. Cst had tune up done, changed mass airflow. It sounds like there is an intake leak, but cannot find one anywhere. Checked fuel pressure,...
2005 Chevrolet Silverado 1500 SS 6.0L Engine VIN: 2GCEC19N75
Hello everyone, I have a Silverado 1500 with a 6.0L engine that overheats in traffic. We have not duplicated the problem at the shop. Temperature regulates around [...]. The fans are cycling on and the radiator temperature up and down the tanks don't appe...
2005 Chrysler 300 (Car) 2.7L Heater VIN: 2C3JA43RX5
Hello there, this is my first post so please have patience with me. We have a 2005 Mopar 300 with the 2.7 engine. This vehicle's heater will supply heat after the engine warms up for a bit then fade. If the engine is idling the heat will fade after a few minut...
2002 Dodge Intrepid SE 2.7L interior lights, radio, power locks VIN: 2B3HD46R82
Interior fuse #19 blows when you install it. I have looked over all wiring in trunk and interior with no signs of pinched wires, dashboard has never been out. Cigarette lighter is on a different circut and i removed radio and unplugged it. I've heard one way t...
2005 Dodge Ram 2500 Truck SLT 5.7L windsheild wipers VIN: 3D3KS28DX5
Original customer complaint is delay wipers will run continuous at times. Wiper switch input performance code stored. Wiper performs great with KOEO. Monitored wiper park switch when problem showed while the engine is running you can see the park switch go to ...
1997 Ford F-250 Lariat 5.4L misc body function VIN: 1FTEX27L8V
Vehicle came to me about 5 weeks ago with a LOT of electrical problems. Battery discharging overnight, lights flashing,etc. with keys out of the ignition. With vehicle starting or running the starter would engage or try to engage randomly.(I did not record ori...
1999 Ford Ranger XL 3.0L interior lights VIN: 1FTYR14V8X
I need to identify the relays under the dash. I cannot find the identification of the relays anywhere.
2001 Ford Mustang 3.8L Speedo jumps to 120 VIN: 1FAFP44411
I have one i haven't seen before...The speedo goes up to 120 mph at approx speed of 30 mph...When it hits 120 mph car cut's out as if the chip is shutting down engine.I have ohmed out speed sensor and a new one was installed, to no avail!! Idea's please?
2003 Ford F-350 Super Duty XLT 6.0L Excessive Emissions, No Start, Poor Idle Quality, Misfire VIN: 1FTSW31P33
When engine is hot, it runs absolutely fine, sounds good, lots of power, starts good, etc. But vehicle will barely start in the morning. I cycled glow plugs 3 times, then cranked engine for 15 seconds straight. It puffs white smoke from tail pipe as each cylin... Trouble codes: P0266 (Cylinder 2 contribution or balance malfunction)
2004 Ford Explorer XLS 4.0L unknown
Hello, sorry about not having the VIN number on this one. I forgot to write it down and am at home. I have this Explorer that will make a loud banging, clunking and a pretty heavy vibration while making a left turn. Turning to the right does not seem to have n...
2008 Ford F-250 Super Duty XLT 6.4L Cooling Systems VIN: 1FTSW21RX8
Hey Ford diesel guys, need some input. I am quite familiar with 6.0 problems but still haven't had much experience with the 6.4. The customer can drive this vehicle normally day to day & have no problem but if he drives it hard or pulls a load with it the cool...
2010 GMC Sierra 1500 WT 4.3L drivetrain VIN: 1GTPKTEX6A
Good Day Fellow Wrench Turners This 2010 GMC has a strange problem which is intermittent. At times, mostly on light throttle or slight deceleration, there will be one or more random clunks generated in the drivetrain. There also seems to be a slight binding s...
2002 Honda Odyssey LX 3.5L Poor Idle Quality, MIL Lamp on VIN: 5FNRL18522
Hi guys 02 odyssey p1399 i have put honda plugs and all coils misfire codes gone but still 1399 any suggestions Trouble codes: P1399
2002 Honda Odyssey EX 3.5L Engince Control Module VIN: 2HKRL18692
Got this van in from the Honda dealer. They couldn't find the problem so the customer brought it to us. Van has a P1607 that pops up randomly. Internal pcm circuit fault. I have no information on code setting conditions or testing procedures. Alldata just says...
2006 Honda Odyssey Touring 3.5L heater blower VIN: 5FNRL38886
now vehicle was back the blower is only working high speed fan and the fan doesnt switch off when heater fan switch is turned off fan still runs on high./
2005 Hyundai Sonata GL 2.4L Evap System VIN: KMHWF25S95
Has anyone had this Code DTC P0449 ( Evap Canister Vent Solenoid Malfunction ) on a Hyundai Sonata? Car has this P0449 Code and i Replaced the Canister Vent Valve with a Dorman Aftermarket Valve and the same day after driving the car about 10 miles the MIL tu...
1990 Jeep Wrangler 2.5L Misfire VIN: 2J4FY19EXL
Vehicle came from another shop, alternator shorted out and wiring to it was bad. Replaced alternator and repaired wiring, when vehicle warms and idles it has an apparent misfire, acts like advanced timing. Indexed distributor several times and is in properly, ...
2004 Jeep Liberty Limited 3.7L 4wd VIN: 1J4GL58K74
looking for the location of the adjustment for the transfer case cable. not available from mitchell. we replace the sensor due to the indicator lights not coming on in the the partime light works but you have to jiggle the handle for the 4wd light to ...
2005 Kia Sorento EX 3.5L MIL Lamp on VIN: KNDJC73375
Have evap purge and vent solenoid codes PO444, PO447 that come on after two ignition cycles which is how system monitors evap. with scanner can test both solenoids and both will operate, ohmed checked per Mitchel and both ohm within spec per temp etc., end of ... Trouble codes: P0444, P0447
2002 Land Rover Freelander S 2.5L Ignition Lock Cylinder VIN: SALNM22212
I am working on this Freelander and the ignition key would not turn. I unbolted the lock cylinder (what a pain) from the column. Now I can start and drive the car with the cylinder hanging. I presume the lock cylinder needs to be rebuilt or is there something...
2004 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A24
This LS came in with constant misfires on cyl 1&2. It has been to several other shops to no avail. The PCM is not grounding the injectors. Swapped coils, injectors, plugs. Compression tested, checked coil and injector resistance. Checked Vacuum. Stress-tested ... Trouble codes: P035X
2004 Mazda 6 S 3.0L low mpg and fuel odor VIN: 1YVHP80D14
Vehicle came in with complaint of fuel odor in cab while at a stop and MPG's are down also. There is a gasoline smell coming threw the vents at a stop especially at first startup. I inspected the fuel pump area, fuel line, fuel rail/injectors and regulator wit...
2001 Mercedes-Benz S430 4.3L Mechanical VIN: WDBNG70JX1
Hello everyone, we recieved a towed in vehichle from another shop. The previous shop replaced the MAF sensor but didnt fix the problem. They recomeded the whole throttle body be changed but the customer wanted a second opinion because of high estimate. We repl...
2006 Mercedes-Benz E350 3.5L Misfire VIN: WDBUF56J76
We resealed valve covers. We did not pull front covers off as it was only leaking from the back areas. We test drove the car for about 20 minutes (idle and driving) Brought it back into shop. Shut of engine, restarted and had a direct misfire and 2 codes. All ... Trouble codes: P0303 (Cylinder 3 misfire), P0306 (Cylinder 6 misfire), P2315 (Ign Coil F primary low), P2306 (Ign Coil C primary low.), P0300 (Random misfire)
2006 Nissan Maxima SL 3.5L Bcm VIN: 1N4BA41E26
We lost the keys to this car and had the dealer cut us a new one. I have the code off the BCM (0BD49) but need the PIN for the NATS code. Anybody know a way without the dealer? My dealer is not being friendly today.
2008 Nissan Altima SL 2.5L Misfire, Poor Fuel Economy
i have an 08 Altima with 2.5 that is setting this code and has a mild intermittent stumble. at idle the Air fuel ratio sensor is at around 2.4 volts indicating lean. from what i understand normal reading is around 1.5 volts. so i would assume there was a vacum... Trouble codes: P2A00
1998 Oldsmobile 88 Royale 3.8L Intake Manifold VIN: 1G3HN52K5W
Water intrusion into intake manifold throught upper plenum at EGR port causing water to get into cylinders. Original manifold burned out the same way. Seems like EGR is opening too long causing a meltdown of manifold. We have no EGR codes
2001 Porsche Boxster Roadster S 3.2L tiptronic VIN: WP0CB29831
car came in with the transmission in limp mode and the d and #4 indicator lights flashing. Scan for fault codes and found code#p0706 store in memory. Checked and replaced the neutral saftey switch. The wires had rubbed against the side of the transmission. The...
2002 Toyota Tundra Limited 4.7L Fan Blade VIN: 5TBBT48182
Scratching my head on this one. Customer comes in and want a new radiator. We replaced radiator and fan blade started to tear away at it. We replaced radiator again and also fan blade and new clutch from Napa and Toyota. With either Napa or Toyota parts instal...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Audi A6 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on, VIN: WAUJT64B72
First of all I would like to thank all of those who provided useless answers. I appreciate those who were nice about it, but some of the replies I got were just a dick response. For those of you who kept screaming FUEL TRIM FUEL TRIM, thesnap-on solus does not... Trouble codes: P0300, P0301, P0303, P0304, P0306.
1994 BMW 750iL 5.0L Hesitation VIN: WBAGC8321R
Finally-retryed all my tinker toys AGAIN and low and behold the auto boss decided to talk with it-performed the throttle adaptation and all is good-thanks to all the replys-Deke
2006 BMW X5 4.4i 4.4L Misfire, MIL Lamp on VIN: 5UXFB53506
thanks for all your help, changed the right side valve cover as per tsb with updated crankase vent valve. all is well havent heard back from the cusomer in a couple weeks now. Trouble codes: P0300, P0303, P0306, P0305, P0304, P0308.
2007 BMW 328xi 3.0L tach & speedo VIN: WBAVC935X7
Thank you all for the information. I guess we did get lucky. No more memory saving of this type on BMW's! Evidently that fuse for the cluster is not up to the "backfed" current.
2007 Chevrolet Trailblazer LT 4.2L Instrument lamps VIN: 1GNDT13SX7
Turned out to be a connection. Not exactly sure which one. After pulling the rear fuse box and BCM everything started working again. Wish I could say exactly which connection but I am only sure it was in the rear fuse block area. Thanks for your help.
2004 Chrysler Sebring GTC 2.7L No Start VIN: 1C3EL75R54
You guys hit the nail on the head. I unplugged my cam position sensor and cranked it over to find bam we got spark!!! Now why can't Chrysler give you a cam synchronization code or something to tell us what it did and why? One of my responses knew the cam and ... Trouble codes: P0725 (Engine speed sensor).
1966 Dodge Charger 6.3L block VIN: XP29G61254
Most replies stated the earlier Hemis were not compatable which is what I needed to know. Others stated to keep the orig. engine or swap a 400, 413, 0r 440. I know a local junk dealer who cuts up quite a few motorhomes and he says he comes across these engines...
2001 Dodge Durango 4.7L No Start VIN: 1B4HR28N61
Very grateful for all responses.In this particular case the pertinant testing involved the integrity of power supply at pins 2 and 22 at pcm and grounds 31 and 32.If these are unquestionably good and yet still no grounding of relays then pcm is bad.Apparently ...
2008 Dodge Grand Caravan SXT 3.8L head control VIN: 1D8HN54P58
Unfortunately I wasn't able to keep the vehicle due to the customer needing it. Thanks for all your help.
1997 Ford Ranger Splash 3.0L Poor Idle Quality, MIL Lamp on VIN: 1FTCR10U0V
I suspect that the timing chain slipped(wish I had the cam sync tool) or has a broken valve spring, asked the service writer to get the OK for engine teardown but he decided to just quote a new engine. The owner of the vehicle(local state college) decided they...
2005 Ford Explorer Limited 4.6L Torqe Convertor VIN: 1FMDU75WX5
After 24 years in this buisness i still can't figure customers out. I told him with what i found and your replies we were going through the valve body and replacing the convertor. He has me order a reman from the dealer to install. Installed and no slip, down ...
2005 GMC Canyon Z71 SL 2.8L Timing chain VIN: 1GTDT19865
Thank you for all of the prompt replies. Yes, the oil pan and the oil suction tube must be removed to get the timing cover off. There is a lot of labor involved in this job. My second question was: How do I know that the variable valve timing actuator is ...
1982 Honda Prelude 1.8L winshield wipers VIN: JHMSN522XC
Thanks for all the replys. The problem was the switch,a bad contact inside was loss of ground and power to motor.
2000 Hyundai Elantra GLS 2.0L Hesitation, Cuts out, Stall, MIL Lamp on VIN: KMHJF35F4Y
Disconnected MAF Sensor- Ran Better- Replaced MAF Sensor Trouble codes: P0121.
2002 Jeep Liberty Limited 3.7L Fuel Gauge VIN: 1J4GL58K02
Thank you gentlemen, was the PCM!!! the 5 volt ref signal, was missing. so a PCM, a reflash and moving the ground strap from the gas tank strap to the body of the truck solved the problem!! Thanks again for the tips!!!
2005 Jeep Grand Cherokee Laredo 3.7L Heater plugs VIN: 1J8HDE8MX5
Hi I would like to thank George [...] - you were both right in different ways. The Lin signal was too low which was the problem & the fault was with the alternator. The alternator is on the Lin circuit causing a very low signal, so the heater...
2007 Jeep Compass 2.4L Starter VIN: 1J8FF47W57
Most of the replies indicate the tipm is the cause, one stated they would "try" a tipm..but there was no way I was going to "try" a $800.00 module, could not prove it bad, spoke to customer who researched it also and agreed but chose not to replace it. One rep...
2004 Mazda 6 S 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1YVHP82D54
This problem may have been a defective wiring harness. I had my tech take the upper plenum off and recheck all the connections to the injectors wiggle wires etc. We put it all back together and no longer have a misfire situation. The front cat is no longer ... Trouble codes: P0300 (Random Misfire).
1973 Mercedes-Benz 280 2.8L Poor Idle Quality, Poor Fuel Economy VIN: 1080862098
Just a thankl you to the people who helped with this enquiry. The vehicle in question is back with the customer and appears to be going well.
2003 Mercedes-Benz SLK320 3.2L Air Bag VIN: WDBKK65163
Learned on this one. If you don't have a OE scan tool run like hell. Snap On gave me a code 4. We took it to the dealer. They told me it needed a air bag, Told them I doubt it. Called me back and told me it was the clock spring. Told them it was new. They told...
2007 Mercedes-Benz E350 4Matic 3.5L engine VIN: WDBUF87X47
tested cam sensors 3 were out of range changed all 4 sensors cleard codes and road test all clear thanks
2000 Toyota Avalon XL 3.0L Dash VIN: 4T1BF28BBY
Jeff from Tennessee was close. It was a strip of protective plastic for the window that was vibrating against the hood. You would hear it from the corners of the dash. Go figure . I had an a/c shop help me with finding it. As soon as he heard it he kno...
2001 Volkswagen Passat GLX 2.8L Heat VIN: WVWLH63B11
i want to thank everyone for their help flushed the heater core and we finally have some heat thanks again
2005 Volvo XC90 V8 4.4L shifter interlock VIN: YV1CZ85285
The vehicle is back to behaving itself, so the owner has elected to wait on shifter disassembly until it becomes more problematic. Below is the reply from Bruce which most accurately fits our particular problem: Bruce from North Carolina Remove the square o...
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