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Prev Professional Automotive Repair Technical Discussions for May 15, 2014
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2003 Audi A4 Cabriolet 3.0L convertible top VIN: WAUAT48H23
Okay. This car came in with the complaint that the convertible top is inop. But, when verifying the complaint i noticed the top does work, opening and closing. Only, when opening it, the top stops mid cycle, and if you give it the smallest touch, it moves. No ...
2006 BMW 330Ci 3.0L Engine VIN: WBABW53446
BMW Techs, So I received this vehicle a few weeks ago with complaint of a rattle coming from the top front of the engine at full operating temp and at about 2250 - 3000 RPMS. Confirmed that the vehicle does have a rattle coming from under the front of the valv...
2007 BMW 525xi 3.0L CV Joint/Differential VIN: WBANF33597
Hello To All IATN Members, Vehicle Was Driven In, Customer Stated That He Heard A Pop Followed By A Rattling Noise. L/F CV Axle Popped Out Because The End Piece & Retainer Broke Off In Frt Differential. Replaced With Used Differential & Axle As Well As Left Mo...
2005 Buick LaCrosse CX 3.8L trunk release VIN: 2G4WC56245
both key fob and interior switch will give you a click from bcm but no power to trunk release, Mitchell seems to have conflicting info on which wire it is leaving the bcm and the wiring diagram shows it as unfused but there is a door/trunk fuse so since Mitche...
1999 Cadillac Catera 3.0L MIL Lamp on VIN: W06VR52R6X
dtc's set at freeway speed long term fuel trim goes to positive 25 at freeway speeds both pre cat 02 sensors have been replaced condition still the same fuel pressure within spec fuel filter new no apparent vacuum leak check with smoke and carb cleaner Trouble codes: P0171, P0174
2003 Cadillac Escalade 6.0L Reduced engine power VIN: 1GYEK63N03
OK so I have this escalade here. We have replaced the Tb Connector, TB,Tac Module, Pcm, App sensor, Tp sensor 1 wire from tb to tac module. The vehicle randomly goes into limp/reduced engine power mode followed by a one of the codes from above which usually al... Trouble codes: P2135, P1125, P0121
1998 Chevrolet K1500 Cheyenne 5.0L Engine VIN: 1GCEK14M2W
Hi everyone, I have a 98 chev 1/2 ton pickup up here that was getting coolant into the crankcase from some leaking intake gaskets (suprise)! Thought I would be able to save it as the lower end was still quiet. Well I proved myself wrong, a test drive to town, ...
2001 Chevrolet S10 4.3L No Start VIN: 1GCCS19W41
Hi to all, Customer towed truck to shop ,died in flight, no start. Chk'd fuel pressure 61 psi koeo,drop's to 55psi cranking,replaced fuel filter,new plugs .Did injector leak down none dropped to 0 psi. Had intermittant spark, replaced dist. and ign. module. N...
2004 Chevrolet Silverado 2500 HD 6.6L crank case VIN: 1GCHK23114
Vehicle is building pressure in crank case and blowing oil out the vent tube. After sitting overnight engine hydrolocks with engine oil in cylinder.
2007 Chrysler Sebring Touring 2.4L tpms VIN: 1C3LC56K87
got car from auction in nashville two of the tpms sensors are new rf rr . Amber tpms light on all the time not flashing the values on the message center are all four flashing and they are not acurate. I talked to my mopar parts guy and he says the vehicle does...
2004 Dodge Durango Limited 5.7L ipc,lighting,charging VIN: 1D4HB58D94
I have an IPC that is going crazy.Litterally everything on the IPC is going on and off.Guages,lighting,headlamps,the airbag on/off switch light,alternator not charging at an idle,warning lights in dash are coming and going and won't shift out of park when warn...
2005 Dodge Grand Caravan SE 3.3L abs module VIN: 1D4GP24R15
The van came in with both the ABS light and brake light on. There is no communication with the ABS module. I can communicate with all other modules. I removed and cleaned all the connectors under the main fuse box in the engine compartment (a LOT of corrosion!...
2007 Dodge Caliber SXT 2.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1B3HB48B77
car has multiple issues came in on wrecker for loss of power and throttle warning flashing on dash we found several wires with battery acid corrosion and repaired them none seemed to help the problem out now we have other problems also we try to access the com... Trouble codes: P0700, P161, U0170, U0171
2009 Dodge Grand Caravan SE 3.3L Hesitation VIN: 2D8HN44E19
Van came in with complaint of hesitation on acceleration. Can get van to hesitate from a stop during heavy acceleration in 1st gear. Happens in other gears and driving conditions as well but is most consistent then. Crank sensor has been replaced at another sh... Trouble codes: P0339 (CKP intermittent set), P1128 (Closed loop fueling not achieved bank 1), P1607 (PCM internal shutdown timer rationality), P0300
2003 Ford F-250 Super Duty Lariat 5.4L Wipers/Washer VIN: 1FTNX21L43
Hi everyone I Have a 2003 F-250 that is our shop truck. The windshield wipers and washer are not working. I have checked the 2 fuses that go to them and both are fine I have removed the multifunction switch and tested it and that checks out fine, I have put in...
2007 Ford F-150 XLT 5.4L Cuts out, Stall, Misfire VIN: 1FTPW14507
This truck runs great and doesn't have the cam phaser tick noise which seems common for the 5.4s, but after getting it warm and coming to a stop, sometimes the engine will start to rattle and run rough, usually stalling out. If it doesn't stall, you can raise ...
2007 Ford E-350 Super Duty 5.4L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTSE34L47
Customer complaints car had no power we CK for code found misfire so we did some test and found #1 cylinder had no compression and the other cylinder was ok. so we pull the head and found one valve was bend also no oil in the engine so we rebuild the engine an...
2011 Ford F-150 Lariat Limited 6.2L crank no start VIN: 1FTFW1E68B
Hello FORD guys this truck would crank strong & not start I found out I had no power to fuel injectors trace it back to battery junction box (smart junction box) found out that several fuses had no power but the box had good power to it. bang on the box with m...
2004 GMC C7500 Topkick C7C042 8.1L master? VIN: 1GBL7C1E44
This is a GMC 7500 used as a packer. 19,000 GVW. I did rear pads and machined rotors. Used after market pads. On road test after repairs I noticed the pedal did not feel right and a little low and the brakes did not stop real good. I bled the brakes again and ...
1998 Jeep Grand Cherokee Laredo 4.0L alarm system VIN: 1J4GZ48S3W
alarm sets itself at times no communication with body module. cannot get issue to occur,can this system be disabled
1998 Lexus GS400 4.0L Stall, Lack of power VIN: JT8BH68X4W
This vehicle dies intermittently. does not matter what the customer is doing. Could be turning with no throttle, full throttle up a hill or just normal stop and go. No codes or pending codes are stored. Only noticed the lean condition as I was scrolling throug...
2005 Mercedes-Benz C230 Kompressor 1.8L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: WDBRF40J35
This vehicle came in with multiple misfires and running bad. At idle you can hear a popping sound around the super charger. I smoked checked and found 1 leak, repaired it and replaced the spark plugs,coils, cam sensor on right exhaust and air mass. The cam sen... Trouble codes: P0366
2007 Mercedes-Benz S550 5.5L radio system
Hi, I seem to having a rush of problematic S500's at the moment. We got this 07 S550, it has no sound from the radio and is not showing any radio stations on the screen. It also says 'no service' in the top right corner of the screen. The navigation works but ...
2007 Mercedes-Benz E350 3.5L Starting VIN: WDBUF56XX7
Hello everyone, i have anothe interesting one. This vehicle was abandoned, towed and the tow company wound up getting the vehicle. They sent it to the dealer to get repaired. They replaced the battery, key and ignition switch. It was getting expensive and they...
2009 Mercedes-Benz C300 4Matic Sport 3.0L Check Engine VIN: WDDGF81X59
Have a 2009 C300 with a reoccurring P2422 canister vent valve stuck closed. The system has been checked for leaks and none found/Float on smoke machine all the way at the bottom. The vent valve and purge valve have been replaced with dealer parts and still hav...
2012 Mini Cooper S 1.6L Pedal VIN: WMWSV3C55C
Customer is complaining of a very touchy brake pedal! I have drove the car a few times and the pedal is a little touchy compared to other vehicles but nothing extreme and feels like a normal mini to me. This is a newer mini to her and also an automatic, she ca...
2002 Nissan Pathfinder SE 3.5L Poor Idle Quality, Stall, MIL Lamp on VIN: JN8DR09Y12
Thanks for any suggestions you have. This pathfinder was towed in with the owner saying she stopped at the store & when she tried to leave it did nothing. No starter spinning over so i assume it was a no crank condition. When it gets here 2 days later it cran... Trouble codes: P1130, P0506, P0507
2003 Oldsmobile Alero GL 3.4L abs VIN: 1G3NL52E23
Just want to say in advance to everyone that takes the time to read this and give my your input, thank you very much! This one is starting to drive me crazy!!! Came in 7/26/13 for (if i remember correctly) noisy bearings. Both front bearings were replaced at t...
2008 Pontiac G6 2.4L VVT Solenoid VIN: 1G2ZF57B88
The car came back in yesterday with a MIL on, and customer stated she heard a rattling type of noise from under the hood. I found a P0016 and P0017 code stored, but did not hear the noise she described. I started by checking engine oil, and found no oil on the...
1996 Porsche 911 Carrera 3.6L transmission VIN: WP0CA2992T
I'm currently reassembling the trans/engine assy. The transmission transmission spline will not slide into the clutch splines. Tried turning the motor to line up the splines better, tried turning the shaft on the transmission. NO LUCK! The transmission is pret...
1994 Rolls Royce Silver Spur III 6.7L No Start VIN: SCAZN02C7R
Customer complained parked at bottom of drive on slope, came back and wouldn't start. Do not have Mastercheck diagnostics scanner ECM is Motronic 3.3 (Bosch) All dash lights up as should. Checked all fuses per workshop manual-OK Bypassed Fuel relay, pump ...
2010 Subaru Forester XT Limited 2.5L Electronic VIN: JF2SH6FC3A
I have a tough one here before I go any further maybe some input maybe helpful. 2010 Subaru Forester, air condition does not get cold. Compressor does not engage when air condition is turned on, no revolution sensor on this make/model. Condenser fan works when...
2007 Suzuki SX4 2.0L imt valve VIN: JS2YB41397
New customer to me, just rolled in with complaint of constant clicking noise, koer, and ignition off. He already traced it to a component attached to the intake manifold, which I am pretty sure is the intake manifold tuning valve. Unplugging the component make...
2005 Toyota Tacoma 2.7L MIL Lamp on VIN: 5TEUX42N45
This truck came in the day before I went on vacation with codes P0136 and P0138. With the high mileage and lack of time I put on a new O2 sensor and shipped it down the road. o2 was working when it left. 3 days later light is back on, customer returned when I ... Trouble codes: P0136, P0138 (O2 Sensor circuit high voltage B1S2)
1995 UD 1400 4.2L Auto Transmission VIN: JNAU4T1J4S
Customer drove the truck for about 20 miles and on the way back (after a short stop) it would not drive faster than 25ph. Problem was confirmed with transmission not shifting at all and 25 mph was achieved as maximum speed in the same gear. Furthermore, we not...
1985 Volkswagen Vanagon Campmobile 1.9L overheating VIN: WV2ZB0250F
85 Vanagon overheats under load, mountains, etc. will overheat in shop with engine revved to 2500 rpms. has a newer coolant pump. t-stat opens properly. I have good flow through the system. Performed bleeding procedure & found no air in system. Electric coolin...
2005 Volkswagen Jetta TDI 1.9L No power VIN: 3VWDT71KX5
Hello Gang , i have a VW BRM engine code with a power issue, original complaint of no heat customer took to dealer and dealer says the head is no good - customer supplied new head and parts , after install of new head i have a power issue on accel, starts and ...
2006 Volkswagen Jetta 2.5 2.5L 2-3 hard shift VIN: 3VWRG81K36
the customer brought the vehicle back saying that 2 or 3 times after getting off freeway vehicle will not shift right away she has to manually shift it. i drove vehicle and could not duplicate the problem but i do notice 2-3 shift delayed/hard some times. i sc...
2005 Volvo XC90 2.5T 2.5L No Start, MIL Lamp on VIN: YV1CY59265
Checked Cam Sensor Signal From Intake Cam (good) Checked Cam Timing (good) Checked Crankshaft Sprocket For Torque (good) Fount End Play It Both Cam Sprockets The Exhaust Is Worse Will This Give Me The Code And Keep The Car From Starting? Trouble codes: P0340, P0345

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1970 Chevrolet Corvette 5.7L Carburetor VIN: N0TAVA1LAB
Thanks for all the replies. I was very much aware of all the little tricks and pitfalls having rebuilt many of these back when they were still fairly new. A special thanks to Peter [...] Keuren who had the actual Rochester carburetor Volume 9 manual with all the...
2006 Chrysler 300 Touring 3.5L Steering VIN: 2C3KK53G66
Hi guys thanks for all the help. I broke down and purchased a set of chassis ears and spent 3 hours moving them all over the car and test driving the car and could only hear any noise when the ears where on the upper and lower control arms in the RF and at thi...
2010 Chrysler Town & Country Limited 4.0L pass side power door
We replaced the door latch assy (what a pain...)and all works as it should. We think that the module prevented all functions of the door due to the issue with the latch. $400.00 plus latch assy - glad it fixed it...thanks, Steve.
2004 Dodge Durango Limited 5.7L oil pressure/prime VIN: 1D8HB58D54
Dale and Kevin, thanks for the helpful tips. Dan and Barry, have you ever heard of the saying, "if you don't have anything nice (helpful) to say, don't say anything at all"? I think that applies here. The problem was my own doing, the oil pump pick up tube was...
2006 Dodge Magnum SXT 3.5L No Start VIN: 2D4GV47V16
I'm still working on this one when I have time. I started looked at the bus lines for data. When the car wont start they all seem to be communicating if i'm setting my scope up correctly. Ive got to dig deeper when I get more time to spend on it. I will update...
2009 Dodge Charger SE 2.7L speedometer VIN: 2B3KA43D19
ok, we finally fixed this car. the programming of the tire size into the tipm was successful many times and we would still not have speedometer function, no codes all modules were online, i kept getting replies about setting pinion factor and i tried it again ...
2004 Ford Freestar SEL 4.2L Battery VIN: 2FMZA52234
First off, Thank You for all the responses. A few of you had similar responses regarding my method of testing and whether the modules were asleep. I used a ford direct method of shunting the system for an hour and then measuring amperage with an dvom. Some sug...
2006 Ford F-250 Super Duty XLT 5.4L Misfire VIN: 1FTSX21576
Sorry for the delay. The problem was three coils were bad. There were no misfires prior to the spark plug change. Goes to show you stick to the basics. Thanks to all who replied. Adam
2004 Hyundai Santa Fe GLS 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: KM8SC73E54
Well, this vehicle is not fixed. Many thought that the camshafts/timing belt was screwed up or not enough parts were put in. The engine was torn back down and inspected again. Camshafts are in correctly, pins are good, gears are right, belt is lined up corr... Trouble codes: P0300 (Random Misfire), P0302 (Cylinder 2 Misfire), P0304 (Cylinder 4 Misfire), P0306 (Cylinder 6 Misfire).
2003 Mercedes-Benz C240 2.6L Poor Idle Quality VIN: WDBRF61JX3
After going through so many things on this vehicle and using many of suggestions that were sent to me. I took another fuel sample (large sample)after thinking about it last night. Completely contaminated with what I don't know. Fuel is cloudy and doesn't smell... Trouble codes: P2050, P2054, P2052, P2056.
2001 Pontiac Aztek 3.4L No Start VIN: 3G7DA03EX1
As usual most of the responces were Bs where people are just throwing sh^&$ out thier to improve thier ratings. I did get some great info from the ones who are trying. I ended up with several problems, First was no spark. I had 12v+ to injectors and no pulse....
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