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Prev Professional Automotive Repair Technical Discussions for July 22, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
2002 BMW 325i 2.5L MIL Lamp on VIN: WBAEN33432
Car came in a few weeks ago with a check engine light. Found P0444 stored for tank venting valve actuation. Performed component activation in AutoLogic for tank venting valve and could hear clicking. Checked resistance through circuit from DME side of harness ... Trouble codes: P0444 (Solenoid Valve Tank venting valve activation)
2006 BMW X3 3.0i 3.0L Fuel tank VIN: WBXPA934X6
Customer struck debris on freeway that punched a hole into the plastic fuel tank. No new tanks are in stock anywhere in the U.S. and must be ordered out of Germany, with no assurance one is available there. I know the only foolproof repair is to replace the ta...
2006 BMW 330i 3.0L Dsc VIN: WBAVB33506
Customer stated car had sluggish acceleration. On test drive the trans warning light, Brake (yellow) and mil was on. The car was in limp mode. Pulled codes and found: (51A7: No message ((engine speed)) receiver EGS transmitter DME-DDE)for the tranny.; (5E1A DS...
1997 Buick Park Avenue 3.8L Power Windows And Door Locks VIN: 1G4CW52K0V
Cust compains of no power lock or window fuction until car is driven for 20 min. After checking i noticed that all functioned w/key on but not w/engine running i then noticed that if alternator is unplugged while engine is running all locks and windows start t...
1990 Cadillac Eldorado 4.5L Poor Idle Quality, MIL Lamp on VIN: 1G6EL133XL
Vehicle came in with service code for intermittent "distributor pickup". So verified with scope and purchased 1) Reman distributor, now rough idle and code 41 cam sensor. purchased new Rich Porter Distributor, came apart in my hands... #2 reman distributor, us... Trouble codes: 41 (Camshaft position / reference sensor)
2003 Chevrolet Silverado 1500 4.8L engine VIN: 1GCEC19V03
this vehicle came in with about 6 codes and the message reduced engine power on the cluster. I then changed the throttle body, app sensor, tac module and the connector to the throttle body had already been replaced. after I drove it down the street the same th...
2009 Chevrolet Corvette 6.2L Speedo drive VIN: D000015749
This car is actually registered as a 1959 Corvette, which is what the body looks like, but there is very little Corvette content. The iatn program couldn't handle the VIN, which originated in Missouri. According to the customer, the speedometer has never worke...
2012 Chevrolet Cruze LS 1.8L Electric power steering VIN: WCA1223450
Is personal vehicle and don't work on domestics..the problem is that I loose power steering for a moment and radio cuts out specifically when turning and engine is hot. The only fault is c800-03 low power supply in the electronic power steering assist module. ...
2004 Chrysler 300M 3.5L No Start VIN: 2C3HE66G94
This vehicle has intermittent no start, code PO340,344 cranks sensor, has had three sensors one from other shop, one at dealer ship one from us, odd thing we found is when fails and we back prob to scope sensor engine will start, first thought maybe pin damage... Trouble codes: P0340, P0344
2005 Chrysler PT Cruiser Touring 2.4L MIL Lamp on VIN: 3C4FY58B75
checked voltage at sensors is ay 12 volts but duty cycle dose not change. Trouble codes: P0031, P0037
2005 Dodge Durango SLT 5.7L Stall, MIL Lamp on VIN: 1D4HB48D75
at times no start, then will start. Sets crank position code. customer replaced crank sensor, I replaced cam sensor. seemed fine. They came to pick up after hours and wouldn't start, then starts, dies, etc. Only code is crank sensor code. running inside the sh... Trouble codes: P0339 (crank position code)
2003 Ford Expedition Eddie Bauer 5.4L no crank VIN: 1FMFU18L33
Hi Guys, I have been working on this 2003 Expedition for a while now and donít know what to do next. It is a no-crank and no fuel pump situation. I know it sound like PATS but my Auto Enginuity Software, which can normally reprogram the keys says access is den...
2005 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTRF12215
Help Ford Techs! This F150 keeps trowing lean codes and Im not sure what the problem is, Ive resealed the upper intake and cleaned EGR valve passages, the pipe is cold at idle and all seems well, its had the PCV hose and valve replaced and no detectable vac ... Trouble codes: P0171 (Too lean), P0174 (Too lean)
2012 Ford Fiesta S 1.6L Overheat VIN: 3FADP4TJ2C
Hello and thanks for the help with this haunted Fiesta. For some time now this customer has been getting the overheat light to come on but never a boil over. This has been quite intermittent. Now the vehicle seems to be progressing and once purged some coolan...
2001 GMC Sierra 1500 SL 4.3L Hesitation, MIL Lamp on VIN: 1GTEC14W41
vehicle came in with lack of power and missing with miss fire code mas air flow at idle 7.91 g/s 2.05 volts ST b1-50 b2 0.8 LT b1 -9.4 b2 10.2 intermitten flashing service engine light Trouble codes: P0300, P00, 420 (cat eff), P0101, P0102
1997 Honda CR-V LX 2.0L Hesitation, Cuts out VIN: JHLRD1842V
Vehicle bogs on accel/ faalls flat on its face when you accel mid to full throttle
2001 Honda Odyssey EX 3.5L Right Power Sliding Door VIN: 2HKRL18681
Greetings and "Thank You" in advance for taking the time to read this and consider helping. Right power sliding door won't close. Opens no problem to full open position. Attempt to close using door handle, dash switch or remote and system just beeps 3 times, n...
2003 Hyundai Santa Fe GLS 2.7L Mechanical VIN: KM8SC73D23
first off I hope I am in the right place to ask this question. I have a new customer recommended from an existing customer. this is his sons car that came in for a misfire.#1 sparkplug wire full of oil. ok sounds easy enough. called them with results. oh could...
2008 Hyundai Sonata GLS 2.4L ac compressor VIN: 5NPET46CX8
hello fellow iatn'ers.. here is a head scratcher 08 sonata came in with very obvious rod knock... engine ended up letting loose while in the bay.. so engine was replaced with a used/boneyard engine as customer didnt want to spring for a rebuild. engine in, ...
1996 Jaguar Vanden Plas 4.0L Poor Idle Quality, MIL Lamp on VIN: SAJKX6240T
This car originally came in as a no start. Found water damage from leaking windshield to engine computer. At the time it would not supply ground signal to injector power relay. I also could not communicate with the engine computer. Using an Autel I tried to co...
2007 Land Rover Range Rover HSE 4.4L radio VIN: SALMF15487
The radio won't turn on and the light in the power button is flashing. The screen has the green Land Rover screen saver for lack of a better term. Navigation as well as back up camera are also out, but the back-up warning chimes are still active. I tested and...
2000 Mazda 626 ES 2.0L Electronic VIN: 1YVGF22C3Y
replace trans the car shifting hard and flairs now it has set two codes p1746 and 1747 check the wire harnes is ok so checked the plug on the trans and pcm they seam to be good to ran threw alldata test tells me pcm .replace pcm still the same problem.looking ...
2003 Mazda 6 i 2.3L No Start VIN: 1YVFP80C63
Vehicle left, and came back the next day for the same similar concern... The tech checked it out again and stated that the he retrieved the same codes., Having just replaced a new throttle body the system was rechecked and the throttle body checked out (GOOD)o...
2006 Mercedes-Benz S65 AMG 6.0L Misfire VIN: WDBNG79J16
Car came in because of misfire and cel. Replaced all 24 spark plugs and boots, made no change. Drove with lab scope conected to ECM at terminal which triggers ignition for cylinder #6 and pattern did not change from when engine was running good and when engine... Trouble codes: P0306
2001 Nissan Altima GXE 2.4L fuel injectors VIN: 1N4DL01DX1
Thanks for any help or suggestions you can give. I have a strange one here. And it's very intermittent. About two months ago this car came in for leaking intake gasket. (I mention this cause i thought this could be related to the problem i now have) I replaced...
2005 Nissan Sentra SE-R 2.5L Engine VIN: 3N1AB51A25
This car runs very well but customer complained of a vibration. The whole engine vibrates. I have a friend that is a tech at Nissan and he never heard of it. It has a timing chain and balance shaft. I saw on google that the balance shaft chain slipped when ove...
2011 Nissan Cube 1.8L Wont Shut Of VIN: JN8AZ2KR4B
2011 Nissan Cube. Has a body code of c1735. When you start the vehicle, you can not turn it off. It continues to run with the key turned off and removed from ignition.I tested the relay with my relay buddy and The Ignition Relay in the lower corner of the IPDM...
2003 Pontiac Grand Am SE 3.4L Cruise control VIN: 1G2NG52E23
In trying to dix a cruise control issue. The PCM has been replaced. The CC module has been replaced. The cruise control now works if the inhibit signal is commanded off with the scan tool but without the scanner commanding it off it displays CC Cancel switch a...
2004 Pontiac Bonneville GXP 4.6L temp. gauge VIN: 1G2HZ54YX4
Good day to all , please help. I can't find the temp.gauge sending unit. I did find the temp. sending unit for the computer on the left rear of engine in the head. Coolant fans work and when gauge goes to the top the reading on the scanner is OK. I unplugged t...
2004 Pontiac Grand Am SE1 3.4L Engine VIN: 1G2NF52E84
Car brought in for with a bad misfire and would stall after warm up. Customer requested a new catalytic converter be installed(recommended by someone else). Changed out cat, no change. Customer then requested I preform an diagnostic. Checked codes; P0300. Save...
2000 Porsche 911 Carrera 3.4L Cooling System VIN: WP0AA2995Y
We have car came in with oil in coolant we replaced engine can not get it to stop pushing coolant out tank we have done air bleed air lift to put coolant in still pushing coolant out cap if you are driving down road all ok stop at light idle over heats fans co...
2003 Subaru Impreza WRX 2.0L drivetrain VIN: JF1GD29683
Customer drove vehicle home after work and parked it , then in the morning the car would not ove more then 6 inches forward or backwards with out feeling like it was binding up. Customer had the vehicle towed to the shop last night.confirmed customers concern ...
2004 Toyota RAV4 2.4L Skid control VIN: JTEGD20V24
The skid control light comes on during hard bank or turns. Light goes out immediately and sometimes sets a code C1224. Code is for open or short in ECM-ABS communication [NEO]. I have a good known wave form from Toyota but it is only 20ms long. My signal match...
2002 Volvo S40 1.9L wrong trans fluid VIN: YV1VS29562
Car came in with blown engine- compression leak into cooling system, client indicated that the low oil pressure light was coming on, also. We Elected to replace entire engine instead of looking into cylinder head failure. While the engine/trans assembly was o...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 BMW X5 3.0i 3.0L No start VIN: 5UXFA53592
Big Thanks to Patrick:-) Jumping 7&8 on the DLC connector worked for ISTA/P. Looks like that's what is needed on the earlier ones? Being that ISTA/P worked on the 06 325i without jumping? Or is that due to model? Either way that's what it took and found that ...
2005 BMW 325i 2.5L auxillary cooling fan VIN: WBAET37425
An oe fan fixed the problem. TYC has a problem with this application. Thanks for the responses.
2007 BMW X3 3.0si 3.0L Flapping Noise VIN: WBXPC93407
HI there and thanks for the help on this one. Jess and Inaki set me on the path to getting it diaqnosed. I took the vehicle up to 40 mph and turned the key off, the noise was still there. I thought hmmm. This really sounded like from under the hood. I ope...
1999 Cadillac Eldorado ESC 4.6L Performance VIN: 1G6EL12Y6X
The aftermarket condensor was the issue. Put in a Delco Condensor and had a 20 degree drop at idle - ambient 80. down the highway would freeze you out about 40 degrees. Boss wasn't happy with that. had us put in a Delphi compressor with no change. My thou...
2001 Chevrolet Impala LS 3.8L MIL Lamp on VIN: 2G1WH55K81
Well, this is one for the books. This car was purchased a year ago from one of my account used car dealers. At the time of purchase it was fine. The owner replaced the radio with an aftermarket radio. Then his troubles began as the radio is an integrated part ... Trouble codes: P0336 (Crankshaft position sensor A circuit range / performance).
2008 Chevrolet Cobalt SS 2.0L No Start VIN: 1G1AP18X88
Problem solved. The fuel was full of water, enough that only about 1/8" of fuel in the top of the tester. A couple of notes for those searching in the future. The engine will start with very low fuel pressure. I disabled the low pressure fuel pump and was able...
1988 Dodge D150 5.2L Poor Idle Quality, Surge VIN: 1B7HD14YXJ
OK Gentlemen, This one is fixed. I first want to thank EVERYONE for their helpful information and things to verify that the origional Chrysler information doesnt really explain. It sucks that the repair information requires a compatible scan tool to do any tes...
2000 Dodge Grand Caravan SE 3.3L Monitors VIN: 1B4GP44GXY
Replaced the front O2 sensor again with a Denso unit, The customer had originally replaced it withe a Bosch from A/zone. Disconnected battery and shorted cable together again. Restart showed 25% ethanol again and in first 4 minutes of driving went up to 31%. H...
2005 Ford Escape XLS 3.0L Headlights
According to our local Ford dealer, you have to install the aftermarket running lights as they cannot program the module to turn on the low beam lights. I wired the kit under the dash with the control side wire of the relay into the ignition run wire and groun...
2005 Ford Escape XLT 3.0L No power VIN: 1FMCU93185
THANK YOU FOR AL [...] THAT REPLIED. We have not fixed car as of yet and i say we because i have 2 ford master techs and ford hot line working with me to no aval.It is a timing issue with ford ids we can ramp timing up and the car has great throttle response and th...
2010 Ford Fusion SE 2.5L MIL Lamp on VIN: 3FAHP0HA0A
Thank you very much to all that helped. The fix was replacing the VMV \ purge solenoid. It was intermittently not sealing. Trouble codes: P0455 (Evap Leak or no flow).
2008 Honda Civic LX 1.8L Engine Knock/Rattle VIN: 1HGFA16588
Thank you all for the replies. All were very helpful. Dale from Pennsylvania and Jim from Nebraska hit it. It was a spun rod bearing on #3 cylinder and #4 was scored as well. After 2 weeks fighting with the aftermarket warranty company they finally authorized ...
2004 Jeep Grand Cherokee Laredo 4.0L steering control VIN: 1J4GW48S44
7-22-'14: Looking over the front end of the Jeep we noticed the RH lower forward control arm bushing had rust around its opening. Bushing 'felt' OK in place & bolt was tight. I unbolted the piece and checked on the bench. Bushing was not torn nor wobbled out. ...
2007 Mazda CX-7 Touring 2.3L hesitates VIN: JM3ER293X7
Thanks for the help guys- this Mazda is going back to the dealer- some info Mazda provides is vague as to which speed sensor provides tcm with road speed but based on our tests and your help the Mazda appears to get a wheel speed sensor signal from abs module ... Trouble codes: U0415 (Invalid data from abs contol module), C1235 (Rr wheel speed signal missing), C1236 (Lr wheel speed signal missing).
1998 Mercury Mystique GS 2.0L Stall VIN: 1MELM6534W
Well I did get good information from many of you all. I have not yet fixed the vehicle since the vehicle has not acted up again! It has been driven with fuel gauge connected and scanner sitting on the passengers seat for at least 200 miles with no problems. I ...
2008 Nissan Altima S 2.5L Transmission overheat VIN: 1N4AL24E48
Hello everyone and thanks for the help with this one. This one was fixed by a new radiator. We left the aftermarket cooler in place for extra cooling. After installation of the radiator, the tranny stuggled to get to 175 degrees. I am wondering if this mea...
1996 Porsche 911 Carrera 4 3.6L Electronic VIN: WP0AA2998T
found vacuum hose near expansion valve leaking. replace hose. found my thermostat was off 15 degrees. threw the thermometer in the garbage and bought a new one! Thanks for you replies! Jeff
2006 Subaru Outback 2.5i 2.5L Hesitation VIN: 4S4BP61C56
The replies all indicated that there most likely was an obstructed exhaust. So, I pulled an O2 sensor and did a back-pressure test which it passed. Because the CEL had been illuminated, I moved on to that. The code stored was for the knock sensor. I assumed th...
2000 Volkswagen Passat GLS 2.8L no 12v to coil when hot soak. VIN: WVWMD23BXY
Thank you for the information. two replies for bad ignition switch, i had checked switch output when car would not start and had 12v. at proper terminals. i also checked power input studs on relay board, all were tight. this car has no distributor or separate ...
2003 Volkswagen Passat GLX 2.8L misfire on 3 and 5 VIN: WVWRH63B13
I found a vacuum leak in the front of the engine... yay problem solved
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