Automotive Technicians Technical Discussion and Fixes for Jul 21, 2014

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	Help Request	Answers
	2007 Audi A8 Quattro L 4.2L high beam shutters VIN: WAUMV44E37 I have fault 02450 bi-zenon shutter solenoid f320 open or short to plus. neither work or even try to. fault is hard fault that comes right back I tried unplugging each side one at a time and cleared fault to see if function would be restored to the one left pl...	View
	2002 BMW X5 3.0i 3.0L No start VIN: 5UXFA53592 Hi this one just would not start one day and still not! The engine won't turn over, but have determined that its not the darter or ing. switch system. The crank signal gets to the immobilizer but not out. I have a month rental on the BMW software, first time u...	View
	2003 BMW Z4 2.5i 2.5L convertable top VIN: 4USBT33413 hi everyone I have this z4 and I am not very familiar with the convertible top system...what happens is when you hit the top button to open the top it will unlatch from the windshield frame but then stop and the red light on the button will flash. I can hear a...	View
	2008 Cadillac STS 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G6DW67VX8 I have tested all of the resistances of the actuators. Found them to all be with in9.2 to 10 ohms. Thin used my snap on scanner the actuate the cams. Found the exhaust actuators to both operate ok. when I operate the intake cam angel control b1 nothing happens... Trouble codes: P0021 (Intake cam position system performance bank 2), P0087 (Fuel rail pressure too low), P0089 (Fuel pressure regulator performance)	View
	1992 Chevrolet K1500 Cheyenne 5.7L Transmission VIN: 2GCEK19K4N What could cause trans to act like it is in kick down mode all the time has new t v cable changed gov. Seems like a valve is sticking because once in a while when it gets warm and is used a while it will start shifting right.But when cold will not shift out of...	View
	2008 Chevrolet Cobalt SS 2.0L No Start VIN: 1G1AP18X88 This vehicle is a no start and first I've had to dive into diagnostics on a gasoline direct injection system. I cannot find any specs on this for high pressure system fuel pressure I should see when cranking. Also, could not find a resistance or current draw s...	View
	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	View
	1996 Dodge Ram 2500 5.9L Mechanical VIN: 1B7KF26C6T this Truck brake pedal bleeds to the floor like bad master cylinder replaced that and Booster front brake hoses Loaded calipers still the same tested RABV with paper clip test past test if you block off front calipers it is good pedal does not bleed off have b...	View
	2005 Dodge Grand Caravan SE 3.3L pcm VIN: 1D4GP24E65 Hello Chrysler techs: Have this caravan from a body shop,got hit on driver's side and crushed pcm. Repaired wires on pcm harness and it came with a pcm the shop picked up used. Installed, car cranked started and died, did a few times and now does not crank at ...	View
	2006 Dodge Sprinter 2500 2.7L compressor VIN: WD0PD64476 cust stated the compressor is bad that's what another shop told him I get it here and it has a leaking valve on the high side so we tried to recharge it and no power coming from temp control module so I jumped compressor and got a full charge in it and yes it ...	View
	1996 Ford E-250 Econoline 4.9L No Spark VIN: 1FTFE24Y0T I am working on a 1996 Ford E-150 with the 4.9 engine. I have a no spark condition. Things that were replaced about 4 months ago: ecu, coil, crank sensor, icm, cap, rotor, wires, plugs. What has me scratching my head is when testing the wires going into the co...	View
	2002 Ford F-550 Super Duty Lariat 7.3L fuel pressure VIN: 1FDAF56F82 fuel pressure drops to 25 psi while driving and loses power replaced fuel pump and no difference took out fuel sender cleaned filters in tank no difference any ideas thanks!	View
	2003 Ford E-450 Super Duty Custom 6.8L Belt VIN: 1FDXE45S83 Ok guys could really use help i have this e450 that was made into a bus by federal it has 2 a/c compressors ive called federal and they said they have sold that division off .they told me the company is now acc climate control i called them with no help all i ...	View
	2008 Ford F-150 King Ranch 5.4L engine VIN: 1FTPW12V18 Owner complained of intermittent ticking /rattling under the hood at idle or just off idle. Scanned for codes, none. After operating temp is reached noise becomes quite apparent. If I just tip the throttle in for a second and back off the noise will increase a...	View
	2011 Ford F-150 Platinum 3.5L brakes VIN: 1FTFW1ET7B Hello Client came in complaining after his truck at over night the brake pedal was hard and applying the brake to drive away the pedal would shake . If he let it idle for a minute or so it would act normal. It has now become more frequent as the time span has...	View
	2008 GMC Acadia SLE 3.6L Ac Check Valve VIN: 1GKER13768 This acadia came in with ac problems we evacated then recharged it. Thing is as soon as u turn it on it pops the check valve and shoots freon out. I no there has to be a blockage somewhere just wondering where u guys think should start ive check condensor alre...	View
	2004 Honda CR-V EX 2.4L Cruise control VIN: SHSRD78864 Honda experts needed please! Been trying to figure out this cruise control issue that this honda is having. You can be driving with cruise control on and it will shut off and turn back on sometimes while jerking you around and will have to reset it by turning ...	View
	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, ...	View
	2002 Jeep Liberty Sport 3.7L No Start VIN: 1J4GL48K62 this jeep is killing me and my wife is beginning to think I am cheating(spend last 4 days in the shop) on her. my tech replaced timing chain on this 02 jeep liberty. after the completion of the timing chain nightmale of no start started. went back into the tim...	View
	2004 Jeep Grand Cherokee Laredo 4.0L steering control VIN: 1J4GW48S44 No prior accident history available, nor seen on vehicle. Customer states this condition has been present for approx. 3-6 months. Thought it was winter road conditions, but continued into summer driving. Problem: Most prevalent above 45mph. Cruising at steady ...	View
	2005 Jeep Grand Cherokee Laredo 3.7L tcm VIN: 1J4GS48K15 hi mopar techs trying to perform initialization for the tcm. it is a new one from a chrysler dealer. will not initialize. always sets a p0602 error programming. using a starscan or witech. also has a "trans temp problem" in message center. this is a second on...	View
	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...	View
	2006 Mazda 6 S 3.0L Hesitation, Surge VIN: 1YVHP80D56 Hello, I have this mazda with multiple O2 codes for lean, stuck low voltage etc. After research I'm wanting to plug off evap to manifold but i haven't been able to locate which hose it is or the evap solenoid. Getting conflicting info from books and posts. thi... Trouble codes: P0131, P2177, P2179, P2197	View
	2001 Mercedes-Benz CLK55 AMG 5.5L dash warnings VIN: WDBLJ74G31 Hi Guys, I have this early CLK55 (Prod date 11/00) that has the ABS,ESP,and BAS lights on the codes C1504 and C1140 indicate steering angle sensor not initializing,and the lights go off after turning lock to lock.The lights come back every time the car reache...	View
	1993 Mitsubishi Fuso FH FH100 5.0L Wheel Cylinder VIN: JW6CEH1G1P Vehicle was towed in for service brakes being locked on it is air over hydraulic system 4 wheel drum with dual wheel cylinders like old land cruiser air pressure starts at 80psig doesnt seem to leak builds to 120psig and unloader cycles all 4 wheels turn freel...	View
	1996 Nissan Pickup SE 2.4L Stall VIN: 1N6SD16S9T Vehicle intially came in for Stalling at stops. Scanned the vehicle and came up with the afore mentioned codes. Owner declined to do anything about it at the time. Three weeks later the stalling was worse so they brought it in for repairs. Road tests to verify... Trouble codes: P0400 (EGR Problem), P0420 (Cat B1 Problem)	View
	2009 Saab 9-5 2.3t 2.3L Radio VIN: YS3ED49GX9 I'm trying to replace the radio/ cd changer head unit due to cd changer failure. On the older 9.5's I have always reprogrammed the VIN in Dice to the VIN of the donor car to divorce the replacement unit and then reprogram back to the original VIN to marry in t...	View
	2002 Volkswagen Passat GLS 2.8L MIL Lamp on Air pump will not activate.I do not have a factory tool to activate.My Autel and Launch do not have the capability.The large 40 amp fuse in the engine compartment is not blown.The relay next to it(when I remove it ) I can make it click remotely.If I send curre... Trouble codes: P0491, 492 (no secondary air bank1), P0492	View
	2011 Volvo XC90 3.2 3.2L No Crank VIN: YV4952CZ1B We are using Vadis on line with latest software 14b. Here is the Data in the CEM for the Immobilizer. CEM-ID code received should say yes ours is No CEM-ID code stored " Good " Faulty CEM-radom code to TP " " Yes " No CEM-responce from TP " " Yes " No CEM-TP...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1999 Audi A8 Quattro 4.2L shifting VIN: WAUBG34D7X Thank you for the replies, I did check the motor mounts which were good, actually appeared to have been replaced recently. I did reset the adaptations and tried to relearn the shifting but had no luck. I told the customer I suspect and internal problem, and h...	2
	2004 BMW 325i 2.5L Excessive Emissions, Misfire VIN: WBAAZ33474 customer declinded to go further and seemed very hard to please. When i dug a little further i found that the oil looked like it had mixed with coolant. I still think the pcv is an issue but im afraid it [...] also need a head gasket. Thanks for all of the re...	9
	2006 BMW 530xi 3.0L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: WBANF73536 There was quite a bit of shreaded belt material wrapped around the crank, ruining the front crank seal. Replaced the seal and now have perfect vacuum and fuel trims. Thanks to all that contributed advise on this one. Best, Mike Trouble codes: P0171, P0174.	12
	2000 Buick LeSabre Limited 3.8L abs VIN: 1G4HR54K6Y THANKS TO ALL WHO HELPED ON THIS ONE. THE K.I.S.S. THEORY WORKS AGAIN. AFTER GOING THE LONG WAY AROUND, MY TECH ENDED UP DOING A FRONT BRAKE JOB TO REPAIR. TURNS OUT THE PROBLEM WAS A UN-BONDED BRAKE PAD THAT WAS WEDGING SOMETIMES. OH WELL, IT WAS A LEARNING E...	22
	1994 Chevrolet Blazer 5.7L No Start VIN: 1GNEK18K4R Thank you all for your great a valuable post let me tell you guys that the problem was on the cam shaft distributor gear it had two teeth broken off, that was the problem thank you all for your information.	39
	2001 Chevrolet Impala 3.4L Gauges, compressor Got it in today ended up just having a bad temp sensor. Looks like it was bad luck I hate it when a car has another problem that does almost what the problem you just fixed did.	None
	2001 Chevrolet Impala 3.4L spark VIN: 2G1WF55E81 It lost spark due to a failed 7X crank position sensor.	15
	2004 Chevrolet Trailblazer LS 4.2L compressor VIN: 1GNDT13S94 Thanks to all replies,it was a broken ground wire in harness going to sensor,when we would unplug sensor and check wiring it showed ok,pluged back up and worked ok,applied the old Ford wiggle test and it quit again [that's when we found broken wire] again than...	7
	1999 Dodge Ram 2500 Van 5.9L No Start, back fires VIN: 3B7KF23Z6X Well I went round and round with this truck. I think the ecm fixed it. I had the distributor out and I installed it 180 out . My bitter mistake but it runs great now.	32
	2003 Ford F-550 Super Duty Lariat 6.0L turbo VIN: 1FDAF56P13 well roger from florida hit it right on the head replaced egr valve good as gold thanks guys!	12
	2005 Ford Freestar S 3.9L temperature high VIN: 2FMZA50695 replaced thermostat again with motorcraft thermostat plus changed the cylinderhead temp sensor with one from carquest and vehicle appears to be fixed thanks guys.	4
	2009 Ford E-450 Super Duty 5.4L aps sensor VIN: 1FDXE45LX9 i wired the apps sensor the same as out 2013 f550 chasis bus and it worked the wire colors and connector were the same. thanks for the help anyway. this was an odd duck being a hybrid conversion. i still have no dtcs after 50 miles.	1
	2004 GMC Envoy SLE 4.2L no start VIN: 1GKDS13S34 THIS ENVOY ALMOST DROVE ME CRAZY. I WORK BY MYSELF AND SOMETIMES I NEED 4 HANDS. THE PROBLEM WAS POWER DISTRIBUTION BX UNDER HOOD.IT WOULD LET POWER GO AND COME ON THE PURPLE WIRE TO PCM IN RETURN KEPT THE GROUND FROM KICKING IN TO STARTER RELAY.I CHECKED THE ...	7
	2006 GMC Sierra 1500 SL 4.3L brakes VIN: 1GTEC14X76 Thanks for your help. There were many great thoughts. It turned out the fix was using the mighty vac at the rear wheel cylinders. I pulled about 4 more ounces from each side & i then had a full pedal back. I have had good luck in the past using this method ...	10
	2008 GMC Yukon Denali 6.2L running board VIN: 1GKFK63828 thanks for the replies. customer is on vacation. will post fix if they return	2
	2005 Infiniti QX56 5.6L cylinder head VIN: 5N3AA08A35 Thank you for the responses. The general consensus was that the head will come off without pulling the engine, but that it is easier to just pull the engine to remove the heads. Based on the overall condition of this engine, we installed a used engine.	3
	2003 Kia Sedona LX 3.5L No Start, Misfire Sorry about the late close on this one, I had actually repaired it, but forgot that this was open. The fix was two things, a semi-'blown' condenser, and AM coils. It was a little difficult to nail down because of the coil issue. Using a low amp probe, I... Trouble codes: P0340 (CMP sensor circuit).	8
	2002 Lexus RX300 3.0L MIL Lamp on, VIN: JTJHF10U42 We checked all the plug connections.Customer did not want to pay for any additional labor time. Claims that she is selling the vehicle. Thanks for all suggestions. John P. Trouble codes: P0500 (Speed sensor).	4
	1991 Mazda RX-7 1.3L Poor Idle Quality, Stall VIN: JM1FC3319M Chuck, thanks...you were right on the money, low compression was found, but I had no idea that we could use a standard gauge with schrader out.	4
	2004 Mazda 3 S 2.3L speedometer VIN: JM1BK14314 Thanks to all who replied, special thanks to Cesar from Mesquitecarcare, you got your brain a rollin, AS Built data took care of it even the no comm with abs module code which this car does not have. Now have right vin in ecm.	5
	2003 Pontiac Montana 3.4L Hesitation, Misfire VIN: 1GMDX03E53 Alright folks, the vehicle is fixed. First of all let me thank everyone for their help. This is a great place to be if you're having car problems and need help. As a few of you mentioned to check the coils for corrosion I went ahead and did that. Spark plug s...	15
	2007 Subaru Impreza Outback Sport 2.5L Unknown VIN: JF1GG63627 HI GROUP THX TO ALL OF YOU. LIKE I SAID I CHECKED THIS CAR OVER. WHAT I FOUND IS THE CV AXLE SHAFTS ARE REALLY SLOPPY, AND AFTERMARKET ONES TOO, SOMEONE REPLACED THEM, THERE COULD BE MY ISSUE, BECAUSE I SWAPPED THEM LH TO RH SIDE, I TOOK ONE CV APART IT SHOWED...	13
	2011 Toyota RAV4 2.5L MIL Lamp on VIN: 2T3BF4DV5B Well, the customer had to have vehicle back, so i got very little diagnosing done. Im pretty sure they were taking it to the dealer for repair.I hate losing a repair that way but sometimes it happens. Thanks to all who replied. God Bless Trouble codes: P0138.	6
	2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWPD63B64 Thanks for all the help guys- most were right- the pcv valve was actually broken passing vacuum into the crankcase. After replacement crankcase vacuum was less than 1 inch. Thanks! Greg and crew Trouble codes: P1111.	11
	2010 Volvo S40 2.4i 2.4L Re-fueling VIN: YV1390MS0A Ok So this one is fixed. What is came down to was a restricted tube that came directly out of the tank and it was supposed to allow the tank to vent when re-fueling. The rubber tube lining was pulling away from the sidewall of the tube. This liner pretty mu...	6

(Also Available: All, Asian, Chrysler, European, Ford, GM.)