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Prev Professional Automotive Repair Technical Discussions for December 6, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
2001 AM General Hummer 6.5L No Start VIN: 137ZA843X1
I have this H1 Hummer in the shop.(I am not a diesel mechanic, but the owner insists I work on it.) It is a good customer with money and a lot of vehicles. He seldom drives any of them very much. Yes this eleven year old Hummer has less than ten thousand miles...
1995 BMW 318i 1.8L No Start, Cuts out VIN: 4USCC7321S
Hi guys this thing is driving me nuts, origionaly came in for a no start found coil pack number 4 expanded and cracked. replaced coil pack still no fire on 4. Pulled the plugs and wires found fouled and replaced them as well. At this time car runs on 3 cylinde...
2001 BMW 325i 2.5L Heater VIN: WBAAV33451
Hello: This vehicle came in with a no heat complaint and I found hoses clamped wrong and falling off from the heater water valve. I replaced the valve with a new one while there and flushed the cooling system. Upon road testing the heat out of the center vent ...
2004 BMW X5 4.4i 4.4L Misfire, MIL Lamp on VIN: 5UXFB53554
Ok I am back. the car is better it only happens now at 40-60kph whith very slight presure on the gas pedal if you press a little more it goes a way. if i drive it i have no problem only happens with customer. same fault #5 misfire. for more info see my last po...
2005 BMW Z4 3.0i 3.0L warning lamp VIN: WBABT52050
Hi Guys Got an issue with this BMW. Replaced the window reg in the drivers door, followed instructions with no problems. Reassembled ,reset clock and window relearn and all works fine. Found the Air Bag light staying on scan the car with 2 Scan tools and both...
1997 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K9V
Vehicle came back with the same code, po440.., went through the hoops again.., no leaks.., and caister valve is grounded at all times again. I know this is limited information.., but i know how majority of evap systems function., i know when purge occurs, ther... Trouble codes: P0440
1996 Chevrolet Blazer 4.3L no 3rd or 4th gear VIN: 1GNDT13W5T
PLEASE HELP, This one is a tuffy. Have this 96 s10 blazer with a 4l60e trans. Came in with no 3-4 gears. Scanned vehicle, no tranny codes. Had one code for egr pintle position fault. Checked trans fluid, burnt bad. customer wanted to fix only what was needed t...
2000 Chevrolet K3500 7.4L Fuel guage VIN: 1GBJK34J9Y
We are looking for some help on this fuel gauge problem.Resistance doesn't match specs,but a new fuel doesn't match either.(both senders match each other)Gauge always reads full but the wiring seems to go through the pcm.Looking at a new pcm,but don't want to ...
2001 Chevrolet Astro LS 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNDM19W81
This post is for a friend. There is a misfire on cylinder #4 @ about 1500 r.p.m. & under a load. Cylinder #2 also has some misfires, but #4 is the greatest. The problem was already there before any of the above work was done, but nothing seems to fix it. Look... Trouble codes: P0300 (Engine Misfire)
2005 Chevrolet Impala 3.4L MIL Lamp on VIN: 2G1WF52E75
This Impala has an engine noise that is picked up by the knock sensor and cutting the power back for the last several months. Customer has unplugged the sensor and drove, the noise has not increased or decreased. Is there a way to fool pcm and cut the check en...
2006 Chevrolet Silverado 2500 HD LT 6.6L Excessive Emissions, No Start, Stall VIN: 1GCHK29D36
The customer drove the vehicle to the shop. Excessive grey smoke from tail pipe, no throttle response and vehicle would only go 5 miles per hour. After the customer turned the vehicle off the engine would only fire and shut itself back off. Pushed the vehicle ...
2007 Chevrolet Tahoe LTZ 5.3L Radio, power nengine VIN: 1GNFK13077
We have this 2007 Chev. Tahoe and the customer states that at times the radio will cut out while driving. Generally after about 20 miles or so. He also said that once in a while the engine will "hiccup" but not die, along with the radios failure. Then all will...
1995 Chrysler Cirrus LX 2.5L Stall VIN: 1C3EJ56H2S
This is my daughters car - she's at school a couple hours away. Read through the archives and I think I have a PCM problem but would like some input from the collective wisdom here as Driveability isnt my strong suit. 102K on it - got it from her grandmother w... Trouble codes: 12 (Battery power disconnect from ECM)
2004 Chrysler Crossfire 3.2L No Start VIN: 1C3AN69L34
Came from Trans shop.Wiring harness housing connector to trans was leaking. Simple fix, right? NO. While taking center bolt out,it was cross threaded and broke/twisted brass connector pins inside the plastic valve body. After replacing valve body plastic housi...
1997 Dodge Ram 2500 5.9L 3-4 upshift VIN: 1B7KC26D9V
truck brought in for no o/d. driver states will shift into o/d at 70mph. i checked truck,no dtc,s. found that if you run up to about 50-55mph and let off pedal, it will shift into o/d and stay there until o/d switch is pushed or road speed decreases. i found t...
1999 Dodge Ram 1500 Laramie 5.2L propotioning valve VIN: 3B7HC13Y5X
This truck has me so I am looking for some help. Three week ago I replace the master cylinder for this problem. and the truck worked good for two weeks. then the rear brakes started to be overworked. and will lock up at parking lot speeds. I have bleed the sys...
1999 Dodge Grand Caravan SE 3.3L Excessive Emissions, No Start, Poor Idle Quality, Cuts out, Stall, Misfire VIN: 2B4GP44R9X
please help me im running out of hair, customer drove the van on 300 mile round trip. it started running bad on their way back but they made it home. when it was towed in we couldnt get it to fire, no codes stored and the computer didnt lose memory because the...
2003 Dodge Ram 2500 Van 5.2L No Start VIN: 2D7JB21Y43
OK, I suspect I have yet another PCM failure, but since I'm not getting the "no bus" death knell on the dash, and the stall/no start is erratic, I'm not 100% sure. The van was towed in for stall, no start. Checked fuel pressure, had 55-58 psi KOEO, checked for...
2003 Dodge Sprinter 2500 2.7L Stall VIN: WD2YD74243
Wonderful Sprinter issues. Customer drove it in with random stall and restart. Replaced fuel filter because it was time, and did an injector leak test using the hose technique. All tested quite well, with the worst having maybe a 1/4" of fuel. After the test, ... Trouble codes: P1187
2007 Dodge Caravan SE 2.4L ft crank seal VIN: 1D4GP25B97
the front main crankshaft seal leaking.
1996 Ford E-250 Econoline XL 4.9L serpentine belt
need to pick some brains here guys... i have a 96 e250 that orig came in with belt tracked off and one rib slapping around making all kinds of noise. inspected drive and accessory pulleys, replaced tensioner and belt (matched belt with one it came in with). im...
1999 Ford F-350 Super Duty XL 7.3L Stall VIN: 1FDWW33F0X
I have a 99 f-350 with a 7.3 that dies intermitly. Sometimes it takes a day or two, and sometimes it will do it several times a day. It has been back several times and im going crazy. I have replaced cam sensor, PCM, ICP sensor. It keeps popping codes P1280, P... Trouble codes: P1280 (Icp circuit out of range), P1670 (Ef feedback signal not detected), P1316 (Idm codes detected), P0344, P0340
2000 Ford Taurus SE 2-Valve 3.0L No Start, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1FAFP5523Y
Thanks in advance for any help on this one.. this one came from another shop or 5.. starts runs good and only every now and then will shut off.. some times will restart, some times back fires.. it will very rarely fail for me.. what little time i got to fail i...
2001 Ford F-550 Super Duty Lariat 7.3L No Start VIN: 1FDAW56F71
Thanks in advance for reading this post. Truck was towed in as a no-start.Check engine light and wait to start light did not illuminate and I had no communication with the PCM and no fuel pressure.Checked all power and grounds to PCM and all checked ok so inst... Trouble codes: P1209, P1211
2001 Ford Windstar SE 3.8L fuel gauge inaccurate after fillingand when low VIN: 2FMDA52491
this ford windstar was towd in yesterday, cust complaint veh. shut off while driving. veh. read 1/4 tank of fuel. ck out of inertia switch relay and fuse for fuel delievery system... sys ok. pulled tank to verify fuel pump working correctly, it was working pro...
2002 Ford Ranger Edge 3.0L MIL Lamp on, P1336 but runs fine VIN: 1FTYR14V92
Truck came in with squeaking coming out of Synchronizer. Removed Synchronizer and found the shaft feeling dry and worn out. Cleaned out synchronizer mounting hole and found no reason for lack of lubrication - good oil pressure. Installed NAPA replacement synch... Trouble codes: 1336 (CKP/CMP Signal)
2006 Ford Expedition King Ranch 5.4L Cuts out, Boggs down VIN: 1FMFU18596
Runs good except on heavy acceleration. Step down hard on gas pedal, boggs down like plugged exhuast or lack of fuel. Has no codes. Just sitting in shop in gear hit gas fast will sputter and bogg down. Normal driving is fine. Broke exhuast loose, same problem....
2007 Ford F-450 Super Duty XLT 6.0L No Start VIN: 1FDXF46PX7
hey guys im very new to the these trucks so bare with me I have a 2007 F450 6.0 which just quit running while driving and no start condition. pressure on the ICP sensor while cranking is aroud 300psi. I have the turbo off. I made a hose/fitting to pressurize t... Trouble codes: P2291
2008 Ford F-350 Super Duty XL 6.8L Stall VIN: 1FTWX31Y48
This truck came in with a intermitant stalling, upon checking the codes found P0191 fuel presure low or high, removed the fuel tank and found that it had about 1/2 gallon of water and alot of dirt. Cleaned out the tank, replaced the fuel filters (in tank and o... Trouble codes: P0191
2005 GMC Yukon XL 1500 Denali 6.0L Passenger side air temperature VIN: 1GKFK66U45
This is a message for G.M. techs. This vehicle and my own 2001 Suburban have the same problem. In the winter when driving on the highway, there is a cold air draft from behind the glovebox and maybe around the hvac case. I put this under the a/c section, but i...
2002 Jaguar X-Type 3.0L Hesitation, Surge, Cuts out VIN: SAJEA51C42
OK at times after engine warm and under heavy load this car will cut in and out as if your turning the car off and on. It will buck and jerk (like a rev-limiter). This only happens under load and when you let off throttle its ok. it can be duplicated in M2 at ... Trouble codes: P0333 (knock sensor hard fault - even when no symptoms)
2006 Jeep Grand Cherokee Limited 4.7L Bus Circuit VIN: 1J4HR58N76
ok guys got a big one here, not quite sure if i posted this in the right section but either way here goes. customer had their 06 jeep grand cherokee towed to the shop for a no start. turned out to just be a dead battery but upon further inspection i found out ...
2002 Land Rover Discovery Series II SD 4.0L No Start, MIL Lamp on VIN: SALTL15482
Hello Rover Tech's, we installed a used engine in this rig and it started fine and ran for about a day. It started to loose power and missing and then it quit, although it would restart, but then it all went away. We have no spark or fuel, we get this code (P1... Trouble codes: P1673 (Manufactures output signal)
2000 Lexus RX300 3.0L water leak righ front VIN: JT6HF10U7Y
Before I punt this to your shop. Mind you we work on Subarus. This lexus leaks water on the right front sun roof pillar or firewall area during hard rains only. The water seems to be coming from above and to the right of the heater and AC box we did check the ...
2000 Mercedes-Benz S430 4.3L Airmatic VIN: WDBNG70J4Y
This vehicle drove in sitting at critical level. Customer jump started it backwards and thats where the issues originated.. Airmatic visit worksop , SRS and ABS light, ESP/BAS visit workshop were on. I started by replacing fuses for radio, exterior lights, pse...
2001 Mercury Grand Marquis GS 4.6L MIL Lamp on VIN: 2MEFM74W51
This Mercury was being brought into us for a check engine light for an EGR code. The DPFE was bad and needed replaced. On their way to our shop the customer said the transmission wasn't shifting right. It got to the shop and had a P1728 code. They also said th...
2005 Mini Cooper S 1.6L park assist VIN: WMWRH33555
I am working on park assist system warning alarm comes on when placed in reverse for approx 30 seconds with nothing behind me. Also has a code 13 stored in system. I do not have proper diagnostic procedures for this code can you please help me out
2004 Nissan 350Z Track 3.5L MIL Lamp on VIN: JN1AZ34D74
please any is welcome.. Trouble codes: P0327
2005 Nissan Pathfinder LE 4.0L no shifting when hot VIN: 5N1AR18U65
Vehicle was towed to the shop,customer states it would not engage drive or reverse. During check-out vehicle drove ok untill it warmed up. Scan system and found codes,po744,p1754,p1757,p1759 and p1764. Spoke to a Nissan tech who said it was a solenoid problem....
2010 Nissan Maxima S 3.5L ignition switch VIN: 1N4AA5AP0A
Saleman thought it was a battery. Replaced battery in car and remote. Will not turn on ignition switch. It is a push button operation and has no accessory or on. Red vehicle appears on inst cluster with outline of key. Also yellow key appears. Intelligent key ...
2001 Subaru Outback L.L. Bean 3.0L cv, front diff VIN: 4S3BH806X1
This vehicle has been into the shop 4 times now for this noise and each time i have been unable to find any problem. I know these front diffs are notorious for self destructing & making noise (as I've replaced about 3 in the last year), and as stated above thi...
2006 Toyota Highlander 2.4L Tpms VIN: JTEHD21A16
This Highlander is a highway dweller. Last week we changed the oil and rotated the tires. Over the weekend the TPMS warning light illuminated. Yesterday rechecked tire pressure and reset system with under dash button. Light stayed off two test drives. This AM ...
2002 Volkswagen Cabrio GLX 2.0L Stall VIN: 3VWDC21V62
thanks in advance for the help car came in on hook no start tested coil and replaced with aftermarket it lasted 1 day next replaced with oe coil lasted 2 weeks another new oe coil fired right iam not real good on vw any help on what i should look for or test w...
2002 Volkswagen Jetta TDI 1.9L Hesitation, MIL Lamp on, Low Power VIN: 3VWSP69M52
Hello fellow VW techs, I have this head banging problem child. Here's what I'm up against. To start, about 3 months ago, this car threw it's timing belt which in turn bent all the valves. Another shop done the repairs with new components. After repair, the cus... Trouble codes: P0234 (Turbo Over Boost)
1991 Volvo 940 T 2.3L Hesitation, Surge, Misfire VIN: YV1JA8747M
Customer complaint is car surges, hesitates, bucks and backfires. Test drove car to verify complaint.Car starts and runs fine cold for first 5 min.After about 5 min thats when problems start. Once it reaches operating temp it runs fine again.Had a code for o2 ...
2002 Volvo S80 2.9 2.9L Misfire VIN: YV1TS92D12
Hi everyone, and thanks in advance for your input. We have a real problem car here. (I guess that describes the subject of most of the posts on here, doesn't it?) This 2002 Volvo S80 first came to us a week or so ago. The owner has just bought it after it has... Trouble codes: ECM35, ECM35, ECM35, ECM35, ECM20, ECM40

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 Audi A6 Quattro 3.2L cylinder head VIN: WAUDG74FX5
Thank you all for your advise.Apreciate everybody's effort and time to share your experience.Will look at all options and will choose the best one to repair vehicle.
1992 Chevrolet Corvette 5.7L Poor Idle Quality VIN: 1G1YY23P4N
bad part from the box. went with an MSD unit and all is well. thanks for the help
2001 Chevrolet Suburban 1500 LS 5.3L Cruise Control VIN: 1GNEC16T71
A huge thank you to everyone who responded with help. Nick and Dan nailed it. I checked the brake light bulbs and sure enough someone installed LED bulbs. We replaced them with regular bulbs and the cruse control works now. Also the second brake PID now respon...
2003 Chevrolet Suburban 1500 LS 5.3L engine
Thanks for all the replies.The majority of you pointed me in the direction of the cam and lifters which turned out to be the fix.Thanks to you I didn't pull the transmission to look for a cracked flywheel.
2002 Chrysler Concorde LXi 3.5L Battery VIN: 2C3AD36M92
Thanks for all of the replies on this one. I noticed that the headlights stay on at key off. They do turn off after about 60 seconds but I advised the owner to cycle the headlamp switch to turn the lights off as she leaves the car. Could be a lighting control ...
2004 Chrysler Sebring Limited 3.0L MIL Lamp on VIN: 4C3AG52H14
Thank-you all so much for your help! We changed over the crank pulley/reluctor and the codes were gone. They looked identical but apparently the 2 degree difference is a huge deal! Trouble codes: P0335, P0340.
2008 Chrysler PT Cruiser Touring 2.4L ABS module VIN: 3A8FY58B98
The biggest problem with this is lack of information. Much thanks to Jim from Georgia. By looking it up as a 2008 Gr Cherokee I was able to sort of verify my original findings. There are only 2 connections on a post from the module that extends into a cavity i...
1996 Dodge Intrepid ES 3.5L Misfire, Poor Fuel Economy VIN: 2B3HD56F8T
After further inspecrtion found one spark plug oil fouled. Found valve guides on that cylinder worn severely causing oil to leak past the valve guide seals. Even though the heads were sent out to be inspected the first time, they apparantly missed 30 thosandth...
1998 Dodge Caravan 2.4L 2-3/3-2 VIN: 2B4F925B6W
thankx to everyone for helping out, got this one fixed by sanding the governor valve until it was free, kept getting stuck, but after of about seven times got it to where is working just fine. thanks again!
2009 Dodge Journey SXT 3.5L 2-3 shift VIN: 3D4GG57VX9
Well as predicted I went to Tenn for a week and the van ran perfect. Checked for codes in every module that I could get into and found no pending or stored codes. Test drove the van over 500 miles. Parked it for an hour to two hours many times. Trans shifte...
2005 Ford F-150 XLT 5.4L Poor Idle Quality, Misfire, MIL Lamp on
This one is done and down the road! The issue turned out to be wiring to the connector at the PCM. Although the wiring loom was still factory sealed, and the wiring issue was not a chafe point, the wiring still failed. My guess is that the wiring was defect... Trouble codes: 2100 (ETC Motor Circuit Open), 2107 (ETC Motor Processor).
2008 Ford F-150 King Ranch 5.4L Poor Idle Quality, Cuts out, Communication VIN: 1FTPW14VXK
ok, want to thank everyone that sent replies and suggestions on helping us get this vehicle (fixed per se) and out the door and customer happy, first off the communication issue ended up being the communication bus wires themselves, apparently a recent radio a...
2003 GMC Sierra 1500 SLE 5.3L Transfercase VIN: 2GTEK19TX3
Thanks gents for the replies. We had the transfercase out so we took it to my friend at the Automatic Transmission Shop and had him look at it. He took it all apart cleaned and shimmed something. But the actual repair was in the encoder motor. There is a littl...
2007 Hummer H3 3.7L Transfer Case VIN: 5GTDN13E67
No one really responded, so guess I'll have to tell ya what I found. I found that removing the Shift Motor I could rotate the shift shaft, and it just did not feel right. If I had the transfer case engaged, and went clockwise and then back to were I started, t...
2008 Hyundai Santa Fe SE 3.3L MIL Lamp on VIN: 5NMSH13E88
well, this car is fixed. Got a bad part from the dealer. The sender b is the drivers side so thank you so much Frank [...]. Thank you all for your help and may the Lord Jesus Christ Himself bless you guys. Thank you JP Trouble codes: P2068.
1984 Jeep Cherokee 2.5L Excessive Emissions VIN: 1JCUC7811E
well this isn't the way I like to fix things but a lot of the parts ar'nt available. the carb was rejetted ( I'm at 5500 ft.) the pulse air was put back together, and a new cat and 3 trips to junkyards I was able to get enough parts to pass emissions. I also w...
1998 Jeep Grand Cherokee 5.9 Limited 5.9L Driveline VIN: 1J4GZ88Z0W
Wow, this one is finally fixed. As previously mentioned, the driveshaft was removed and balanced. What we did was put a fresh set of eyes on it. The technician put the vehicle on the alignment rack and raised the vehicle off the rack by the axles. We installed...
2007 Kia Optima LX 2.4L No Start, MIL Lamp on VIN: KNAGE12387
Well this vehicle is fixed. First thanks to everyone who responded and tried to help with this post. We replaced the cam and crank sensor with ones from the dealer just to be sure we had no problem with those even though we had scoped the old sensors and recei... Trouble codes: P0340 (Camshaft position sensor).
2006 Land Rover LR3 SE 4.4L Unknown VIN: SALAD254X6
We ended up replacing heater core and this was the problem, would have went this direction earlier with the exception that it was replaced 20k ago...the rows are diagonal and very small tubes. THanks, Stewart [...]
2000 Mazda 626 ES 2.0L engine VIN: 1YVGF22CXY
Thank you all for the input. I did check compression. 175 on all cylinders 1,2,4 and 155 on cyl 3. Alternator voltage and regulator ok, A/C pressures ok, reset idle screw to spec and adjusted "throttle adjustment screw" and never could find a point where engi...
2002 Mercedes-Benz C230 Kompressor 2.3L Lighting VIN: WDBRN47J62
Once again I found the awnser thank to IATN. I was was unable to locate a used module,wich didn't brake my heart. I installed a new module from mercedes and as most of you said the fuel fuel guage did not work but at least the lights worked and the car was saf...
2006 Nissan Altima S 2.5L MIL Lamp on VIN: 1N4AL11D56
Hi Techs, Thank you all.I clean and lube and use flat head screw driver,It took me more than an hour,it just not enough room and you cannot unbolt it without removing the connector.Steven from N.Y. said to use flat head and sweet talking,it is funny now becaus... Trouble codes: P0725, P0335.
1977 Porsche 924 2.0L Clutch VIN: 9247200935
Thanks for all of the responses,I have determined that the shift linkage had too much play in it and thinking it was in neutral,but actually in gear.The problem still exists that the clutch pedal will not release the clutch and the cable is already adjusted al...
1999 Saturn SL2 1.9L secondary air system VIN: 1G8ZK5279X
Thanks everyone, the air tube to the manifold was partially plugged. Pretty close to plugging solid. I cleaned it and blew air through the manifold and it seemed to be flowing ok so I reassembled and tried it. The O2 sensor switched much faster and the fuel tr...
2004 Saturn Vue Red Line 3.5L transmission VIN: 5GZCZ63444
Thanks for all of the replies and help. I decided to go with lifting the vehicle off the cradle with engine and trans. still attached. It took 3hrs to get to that point so not too bad. There wasn't that much wiring harness to disconnect. The radiator and conde...
2004 Toyota Sienna XLE 3.3L ABS, traction control etc. VIN: 5TDZA22C04
Many suggested checking tone rings, sensor wiring and output. I've discovered there is an updated module that supposedly fixes it when nothing else is found but hate to spend $600 on a WAG. As the tires were worn to the wear bars we replaced those and it has b...
2005 Toyota Prius 1.5L light on dash VIN: JTDKB20U15
New level sensor on rear axle fixed this one. Sorry, but I missed the TSB (EL004-06)that described the problem to a tee. The improved part has a (G) with a circle around it on the parts tag (part#89408-47010)and lists for $358.46. Typical 3 wire connector with...
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