Automotive Technicians Technical Discussion and Fixes for Jun 4, 2014

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	Help Request	Answers
	2003 Audi A4 1.8L a/c VIN: WAUJC68E13 Hey guys, i have this A4 here and I've never seen this problem, but then I am still pretty new at this. The A/C blows nice and cold for about 15 to 20 minutes then starts getting warmer. I have these codes; -01842 - potentiometer in V159 - G221 -01274 - motor ...	View
	2005 BMW Z4 3.0i 3.0L Steering VIN: 4USBT535X5 The steering is to hard to move both sides, change complete column with electric motor and steering bar. The same problem HARD. The zero angle position is OK but the torque signal is all time 0Nm no change when move the steering. I check all wires and are OK O...	View
	2007 BMW 530i 3.0L No Start, Poor Idle Quality VIN: WBANE735X7 I had multiple codes randomo misfires, cam codes, the one that keeps coming back after erasing, is 2a9a cam position a, or generic p0341, i scope the signal while roughly running and compare to the other cam signal and they are very similar, check ground to co...	View
	2008 BMW 328xi 3.0L speakers VIN: WBAVC735X8 customer states that the car has static in the rear speakers all the time regardless if the key is in the ignition or not. the static will continue no matter what until the modules go to sleep. customer has replaced the amplifier in the past and that fixed the...	View
	2010 Cadillac Escalade 6.2L misfire on decell VIN: 1GYUKBEF7A removed the fuel rail, check for any debris in rail, swapped injectors side to side before installation, cleaned injectors with bg products x3. smoked intake for vacuum leak diagnosis, swapped coils cylinder to cylinder, vehicle has no engine noises, no tappin...	View
	1994 Chevrolet C1500 Cheyenne 4.3L High Idle VIN: 1GCDC14Z1R Vehicle is field truck that went through high water at high speed. Vehicle stalled, so customer cleared sensor connectors and distributor of water. Came in with running rich condition. Replaced broken ECT sensor, and MAP sensor for rich condition. Customer sai...	View
	2004 Chevrolet Monte Carlo LS 3.4L brakes VIN: 2G1WW12E64 Had a pulsing problem with this vehicle. Checked for run out on original rotors. one of the front was out about .015 other was fine. Changed front pads and rotors, but still have the pulse. Changed vss, it was off anyway, but this did nothing other than making...	View
	2009 Chevrolet HHR LS 2.2L A/C Drain VIN: 3GNCA13BX9 Now this vehicle has come back again leaking water from the bottom of the HVAC housing next to ware the heater core is. Has anybody else come across this same problem?? I really do NOT want to pull the ASSM. out again.	View
	2013 Chevrolet Suburban 1500 LTZ 5.3L Idole in geer VIN: 1GNSKJE78D Good morning . Gm transmission expert needed.I am not a transmission expert Truck develop a sliping problem only when hot above 75 C. In drive when you stop it will "get out off gear" if you release the brake wont move, slowly pushing the gas will get in...	View
	2006 Dodge Grand Caravan SE 3.3L cylinder heads VIN: 1D4GP24R46 Ok here is where im seeking a little advice, vehicle came in with a dtc p0300, we took a look at possible causes and found that the spark plug wires needed replacing because 3 were broke off the boot, we replaced them and it appeared to have solved the miss fi...	View
	2009 Dodge Grand Caravan SE 3.3L power liftgate VIN: 1D8HN44E29 Power liftgate won't operate. Overhead console and rear switches open and close on data list. Fully open switch remains closed regardless of liftgate position, postion switch 1 and 2 fluctuate between open and closed.	View
	1990 Ford F-250 Custom 7.5L Starter/Alternator VIN: 1FTHX26G6L Customer had vehicle towed to my shop. He had tried to charge the batter when it was dead, but hooked up the charger backwards (pos to neg, neg to pos) and left it on for 72 hours. He replaced the battery with a used one, and the alternator (NAPA Reman). He ...	View
	1999 Ford Econoline Super Duty Custom 7.3L MIL Lamp on VIN: 1FDXE40F2X The check engine light goes on and off and the bus runs rough and lacks power. when it warms up it runs a little better but not good. It also smokes blue on acceleration when it is warm. The The engine cranks well and evenly. I am leaning toward #3 and #5 inje... Trouble codes: P1316, P1273, P1275, P0640, P0471	View
	2000 Ford Escort LX 2.0L code p0750 hello all,i am in need o help.i have a 2000 escot with a f4eat transmission. i rebuilt tranny after the speed sensor was stuck in tranny case.it worked fine before all the work.after rebuild it has no second or fourth gear.has code p0750.replaced all solenoids...	View
	2002 Ford E-250 Econoline 5.4L blower motor VIN: 1FTNE24L72 came in complaint blower works sometimes the day it was in shop worked fine replace resistor and motor took van and later was doing the same thing .was stated that when brakes are hit works some times and sometimes goes off	View
	2003 Ford Ranger Edge 4.0L Poor Idle Quality VIN: 1FTYR15EX3 P2198 keeps popping up and engine has rough idle. Replaced all o2 sensors, intake, and many other parts with new engine. Fuel pressure at 62 psi, no vacum leaks found. Pulling hair out on this one. Help!!! Trouble codes: P2198 (B2s1 oxygen sensor rich)	View
	2006 Ford Escape Limited 3.0L Parking aid VIN: 1FMYU94106 Hello everyone, I hope this message finds you well. I have an elderly customer who owns this 2006 Escape and relies heavily on the parking assist/aid beepers when reversing. The system does not beep or indicate obstructions when reversing anymore. I checked he...	View
	2006 Ford Explorer Eddie Bauer 4.0L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMEU74E06 customer overheated on highway after t-stat housing ruptured, drove for another ten minutes of so untill it overheats (dumb ass) he changes the housing, stat, and coolant temp sensor, then sees it's misfiring, brings it to us. Found wires to be arcing out when... Trouble codes: P0316 (miss on startup), P0301 (miss cyl 1), P0306 (miss cyl 6)	View
	2006 Ford Fusion SE 3.0L compressor VIN: 3FAFP07116 ok, so this 2006 ford fusion came in with a complaint of a/c bowing warm even when charged. so i pulled all the R134-A out of the system, and it only had .51 pounds. I put the correct amount of 1.31 pounds in it, and still no engagement of the clutch. So then ...	View
	2006 Ford F-250 Super Duty Lariat 6.0L No Start VIN: 1FTWW23P76 Hi- I've got this 6.0l with a high pressure oil leak, air tested hpop thru ipr valve with special fitting, can hear air leaking in crankcase. removed valve covers- has updated standpipes and dummy plugs, nothing leaking in top end, can still hear air in crankc... Trouble codes: P2290, P2291	View
	2003 GMC Sierra 3500 8.1L transmission VIN: 1GDJK39G23 Customer brought truck in with a transmission whine and requested transmission fluid/filter change. I changed both filters and fluid. Took vehicle for test drive and approximately 1/2 mile, the vehicle gears quit. Towed it back to shop, scanned it. Replaced th...	View
	2008 Honda Civic EX 1.8L Air Conditioning VIN: 2HGFA16918 complaint is the a/c blows warm under acceleration for a little bit then blows fine. The low side is getting too low. Seems like the expansion valve is bad again. If anyone has ran into this problem any insight would be great. Thanks	View
	2002 Kia Optima SE 2.4L Camshaft position sensor VIN: KNAGD12632 If anyone has had this problem please help or tell me what i need to do to fix this car. Spent the past 5 days on it and I have to go back to work tomorrow so I would like to finish this car today.	View
	2002 Kia Rio 1.5L Mil VIN: KNADC12352 Mil on code p1693 present , code description mil circuit malfunction ,code can be erased then after two key cycles code returns.tested ground circuit from mil bulb to ECM continuity fine, power supply proper voltage, now strange thing mil system seems to work ...	View
	2009 Kia Optima EX 2.4L valve train VIN: KNAGE22859 This car has a distinct tap that sounds like is coming from the cam area I have pulled the valve cover and did not see any thing wrong at cams, valves, or in the timing chain. lash adjusters don't look like they are hydraulic. Shopkey Does not say for sure tha...	View
	2012 Kia Sorento LX 3.5L generator VIN: 5XYKT4A20C I work at gm dealership and have generator unbolted and have no idea how generator comes out, does come out from bottom or top, or remove front engine mount and jack up engine and slide out on side of frame	View
	1990 Mercedes-Benz 500SL 5.0L No Start, Poor Idle Quality, Stall VIN: WDBFA66E9L just installed transmission, battery was dead, used booster pack . vehicle starts but wont accel and runs very rough. dash warning light all on, low fuel light, all gauges are inop except fuel it sits at 1/4. vehicle is also no charging. with key on and turn o...	View
	1995 Mercedes-Benz SL500 5.0L Excessive Emissions, Poor Idle Quality, Misfire VIN: WDBFA67E4S Hi all in IATN land. Thanks for taking time to read this post. This car has had a problem intermitently for some time. The owner will start it and drive it to the store running fine. Come out 20 min later and car runs real rough. If the car sits for several ho... Trouble codes: 2 (Max retardation), 6 (Cam position L5/1), 11 (Referance resistor), 12 (Engine speed signal), 20 (Diagnostic trouble code memory in D 11 N1/3), 21 (Load sensor D/11 N1/3)	View
	2002 Mercedes-Benz C230 Kompressor 2.3L No Drive no reverse VIN: WDBRN47J92 After re installing transmission, started car, and transmission is acting exactly the same way it was. move shifter to D does nothing, when I move shifter to reverse it kind of wants to engage but car just slightly moves backwards and then it disengages, and i...	View
	2003 Mercedes-Benz C230 Kompressor 1.8L Stall VIN: WDBRF40J43 The owner was coming to a stop and the engine stalled. Crank no start. Towed to the shop. Tow driver couldn't get the shifter out of park. We found the #55 fuse (7.5 Amp) in the front SAM fuse box blown. Starts and shifts with a good fuse. The fuse feeds power... Trouble codes: P2025, P202F, P2059, P2061	View
	2007 Mini Cooper S 1.6L timing VIN: WMWMF73577 This vehicle arrived at the shop with a crank no start. The fast crank with no resistance sounded like an engine out of time. R&r valve cover, found timing chain guides in pieces. R&r cams and performed leak down test, no bent valves. Inspected engine oil leve...	View
	2001 Nissan Xterra SE 3.3L cylinder VIN: 5N1ED28Y61 engine runs and starts good.has a slight miss and has a po300 random come back after clearing.tachometer is jumpin at idle.firing order checked out.when issolatin cylinders only one makes enginr react,other five engine changes very little. it has power but you...	View
	2006 Nissan Sentra S 1.8L no MIL light VIN: 3N1CB51D26 This vehicle came in for a inspection. Ck the bulb it was good. Ground and battery voltage at cluster is good. I have checked the wiring diagram. How do you test the circuit for the MIL. All monitors are complete. However it will fail inspection with no MIL at...	View
	2012 Ram 3500 ST 6.7L rear abs sensor VIN: 3C63DRGL0C Have a new customer that brought this dodge in. Has had it at another shop here in town. Will not read the rear abs sensor. Rear wiring had been damaged and fixed by previous shop. Tested for voltage and load tested wires back to sensor and both check fine, so...	View
	1997 Subaru Legacy Outback 2.5L Sub/Main Fan VIN: 4S3BG6851V Where is sub fan relay 1? The sub fan comes on high speed with the AC turned on. The Main fan hardly ever comes on, and barely spins when it is activated. Manual operation with test leads show fans to be working properly. I have taken out the 4 relays in ...	View
	2000 Toyota Solara SE 3.0L Cuts out, Misfire VIN: 2T1CF22P9Y First off thank you to any one willing to help me with this car. I do not have a scope so I cant scope this car. The car runs great cold but when it reaches temp it cuts out at 3000 rpms. Fuel press is good	View
	2004 Toyota Sienna XLE 3.3L No Start VIN: 5TDBA22C74 Customer was running errands last night. Came out from CVS and van cranked, no start. AAA came, towed to me this morning. Verified concern. Could not here fuel pump (sounded like no fuel concern). Tapped on tank, still no pump. Swapped C/OPN relay (fuel pump...	View
	2005 Volkswagen Jetta 2.5 2.5L Starting VIN: 3VWDF71K05 We rebuilt the transmission in this car and now the starter turns as if the timing belt is broken or something to do with no compression car started fine before does anyone know if there is some kind of reset that has to be performed to enable this thing to st...	View
	1998 Volvo V70 R 2.3L evap small leak VIN: YV1LW5241W Hello thks for taking the time to read my post Car came in with a code P0442 found the pruge solenoid leaking so I replace it Drove it again code came back Okkk recheck the sys again all good no leaks i smoke it real good to The only thing I could see is shut ...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2006 Bentley Continental GT 6.0L Steering angle sensor VIN: SCBCR63W86 For some reason whenever the left side battery is disconnected the steering angle code sets. Peter [...] suggested that I reset the steering angle and clear the code. Before I did the procedure I replaced the left battery with the correct AGM type. The Bent...	2
	2003 BMW 325i 2.5L oil pressure VIN: WBAEV33483 Took off the intake cam adjuster solenoid and saw that it was sticking. Cleaned out solenoid and put it back in the car and it runs great again. Recommended replacing the solenoid but customer denied the repair. Thanks guys!	12
	2009 BMW 335i 3.0L Coolant VIN: WBAWL71039 I'll close this request because I'm running out of time and the customer has not come back. but I'm positive, and agree with all the techs that suggested is the oil filter housing / cooler seal. Since in N54 there's both coolant and oil going through it. In M5...	13
	2009 BMW X5 xDrive30i 3.0L Compresor VIN: 5UXFE43509 Replaced Compressor and belt. Working fine.All 9 replies suggested replacing the compressor.	9
	2001 Buick LeSabre Custom 3.8L No Start, Stall VIN: 1G4HP54K31 Well this one is fixed. Long story short someone before me must have removed the engine compartment fuse/relay box. Turned out the whoever did this did not tighten the three bolts up in the middle of it to hold the connections together. I had to send it to my ... Trouble codes: U1040, U1300, U1255, U1305, U1604, U1160.	12
	2007 Chevrolet Equinox LS 3.4L abs VIN: 2CNDL13F67 Thank you to all who helped. The crazy thing of this situation that baffles me is that it would only set code on cold start up. Never would drop speed while driving. Tightened every connector and checked ohms with other sensor and the checked equal. Decided to...	11
	1996 Chrysler Sebring JXi 2.5L Excessive Emissions VIN: 3C3EL55H4T The last monitor would still not reset. The state allows an actual smog test if all else fails. We ran thru and passed. The problem with some of these mid 90`s cars is that we spend so much time trying to get monitors to reset that we lose our shirts with all ...	8
	2007 Chrysler PT Cruiser 2.4L cooling fans VIN: 3A4FY48B77 The fix was a coolant temp sensor.The sensor was reading 170* after running only 5 minutes after setting overnight.I also changed the thermostat to CMA.Thanks again for the info.Also I stated the fans did operate with the a/c on.Again Thanks.	10
	2005 Dodge Ram 2500 Laramie 5.9L Shift pattern VIN: 3D7KS28C75 I checked the governor pressure and monitored desired pressure with a scanner. The pressures all were at spec with desired pressure. That is the problem, the desired pressure is bouncing back and forth randomly. Since this is a pressure problem, I don't believ...	6
	2007 Dodge Sprinter 2500 3.0L low power VIN: WD0PE74597 Well this is how it went. After all the great help of those who replied and i learned a lot from you. I performed the regen as suggested and got a ton of exhaust smoke the first time. Ran it a second time and the exhaust cleared up. I recommended they driv... Trouble codes: 2089 (exhaust pressure sensor voltage too high), 2511 (EGR control positioner error), 2359 (charge pressure control charge pressure too high), 2510 (boost pressure regulating control positioner error), 2134 (cylinder 2 glow plug open).	6
	2007 Dodge Ram 3500 SLT 6.7L Possible Bhg Loses Coolant Into Reservoir VIN: 3D7ML49A37 THANK YOU FOR ALL THE REPLIES. I INSTALLED ANOTHER RADIATOR UNDER WARRANTY AND MY CUSTOMER, AFTER SEVERAL ROAD TEST IS CALLING THIS A FIX. WE REPLACED THE ORIGINAL RADIATOR WITH AN REI*Y RADIATOR A YEAR AGO DUE TOO A LEAK. HE HAS DRIVEN IF WITH NO MORE PROBL...	7
	2009 Dodge Grand Caravan SE 3.3L Hesitation VIN: 2D8HN44E19 This one is fixed. Ran a new signal wire from the ckp sensor to the pcm. Thanks for all the replies. Trouble codes: P0339 (CKP intermittent set), P1128 (Closed loop fueling not achieved bank 1), P1607 (PCM internal shutdown timer rationality), P0300.	8
	1996 Ford Ranger Splash 4.0L Speedometer VIN: 1FTCR10X7T I never did nail this one down, the end. There's got to be something i missed but tome its money and too much was spent on this one. I want to thank everyone for the good info on this system, Michael [...]'m particular for the diagrams, also Fred and Jaret...	9
	2004 Ford F-250 Super Duty Lariat 6.0L Excessive Emissions, Misfire, MIL Lamp on VIN: 1FTNX21P34 This truck has a Ford high idle controller, which means the engine time might be 13,000 hours or more. Time for an engine, but I told the customer, to take the loss and junk this truck, only because of the engine. Josh is right. Trouble codes: P0269, P0603.	8
	2003 GMC Savana 2500 4.8L erratic guage sweeps,etc VIN: 1GTGG25V43 thanks for all the replies. I did double check ignition voltage and it was ok. Noah from Maine nailed this one(and I am not proud to say I have been bitten by this dog before). the ground strap behind the front bumper on the pass. side of the truck was corrod...	6
	1996 Honda Civic LX 1.6L Smog VIN: 2HGEJ6603T Thanks to all who responded. Since nothing was altered on this vehicle (everything was OE) I removed the valve and timing covers to find that the cam was indeed a tooth off. I am surprised how well it ran however. Timing is now correct and the timing marks are...	17
	2007 Hyundai Sonata SE 3.3L Airbag VIN: 5NPEU46F07 TOLD CUSTOMER TO TAKE VEHICLE TO DEALER AND THEY SAID THEY WERENT GOING TO WORRY ABOUT IT. OH WELL. WAS HOPING TO LEARN SOMETHING NEW	5
	1995 Mercedes-Benz SL500 5.0L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: WDBFA67E0S Thanks you all for your time to respond. The engine harness, and the throttle body where replaced recently, and they are in good shape. The E gas ECU was replaced a year ago with a used one with high mileage.I was lucky enough to swap the e gas ECU with known ... Trouble codes: 030 (P001E No communication with accelerator pedal control module EA N41).	4
	2005 Mercedes-Benz S430 4Matic 4.3L Ecm VIN: WDBNG83J55 This post was about a Launch X431 Pad. I was a victim of an unusual situation. I purchased it online from a third party thru Amazon. The problem come about when I went to register it.Three things you need to register it. A serial number, a confidential passwor...	3
	2011 Mini Cooper 1.6L hard start VIN: WMWSU3C53B Special thanks to Andy from Australia Did one this week with same symptom. Coolant temp sensor reads incorrectly intermittently causing poor cold start Can also cause fans to run at wrong times. I would take a look at the sensor values to see if they are pl...	4
	2008 Nissan Altima S 2.5L Temperature VIN: 1N4AL24E48 Hi there and thanks for the help on this one. The replies I received were great and all stated that these units are kinda junky and that it was failing. The temperature was from internal wear causing the unit to get hot. The Nissan dealer parts person here ...	4
	2003 Pontiac Montana 3.4L Poor Idle Quality, High Idle VIN: 1GMDX03E63 First off thank you for all the help.. Second off I would like to let you know it is fixed... Turns out the ECM was shorting out. None the less it is done and going home...	34
	2000 Saturn SL1 1.9L all shifts VIN: 1G8ZH5283Y i guess this one was elusive - replaced shift solenoid - cleaned all grounds after load testing with halogen ground test rig to find corroded one - road tested - all is well	3
	2007 Toyota FJ Cruiser 4.0L No Start, MIL Lamp on VIN: JTEBU11F37 Situation has not changed from when I posted the update. iATN is urging me to close this request. I expect the vehicle will arrive later. Thank you all very much. I am of the impression the Crank Sensor or it's wiring is the problem. As a closing note, shoul... Trouble codes: P0300 (Random Miss Fire.).	10
	2001 Volkswagen Golf GTI GLS 1.8L Camshaft Timing Chain noisy VIN: 9BWDD61J61 The noise was fixed by replacing the timing chain tensioner. Once the original tensioner was removed from the engine it was evident that the spring on the top side of the tensioner that is used to pretension the chain until oil pressure is built was weak when ...	8
	2003 Volkswagen Passat GLS 1.8L Oil burning VIN: WVWPD63B83 Hello everyone and thanks for the help on this one. I received several replies regarding the crankcase breather system and the potential for the turbo letting oil through to burn. I did not see any evidence of these failures. I suspect, as many stated, that...	11
	2003 Volkswagen Golf GTI 1.8T 1.8L No Start VIN: 9BWDE61J73 Thanks for all the help on this one. It is fixed and out the door. As many of you stated, the fuel pump relay was the culprit. The low voltage and short codes were the key. The customer had put in an Autozone relay but it was a junker. I put in an OEM rel...	8
	2004 Volkswagen Jetta GL 1.8L Front clunk VIN: 3VWRE69M24 Hi there everyone and thanks for the help. This group of techs is really great. I don't know how I would get things done sometimes with you guys and gals. The consensus was axle or bearing. This one was a bad left front wheel bearing. I have never seen a ...	11
	2009 Volkswagen Tiguan SE 2.0L WSS signal on LF VIN: WVGAV75N49 Your replies were right on, the wheel bearing was bad. I had just never seen this fail before. It is not a normal "tone ring" that looks like a toothed gear... It is a rubber magnet like a refrigerator magnet or a magnetic business card. The magnet has lines...	5

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