Automotive Technicians Technical Discussion and Fixes for Jul 9, 2012

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	Help Request	Answers
	2000 Acura TL 3.2L brake lights,park hi all, customer states one day his tl would not come out of park.he went to dealer,bought and put in a brakelight switch.most common fix,right,but it didnt work.so it came to me.i have checked all related fuses,i have jumped the brakelight switch wires and st...	View
	2005 Acura TL 3.2L Front Shimmy's when car is hot VIN: 19UUA66245 Car has a bad brake pulse only when the car is hot. Owner drives a good hour and half to work everyday. Car only has problem when he's almost at work or at home. Steering wheel shakes very bad. When the car cools off its fine pulse is gone. No codes on ABS sys...	View
	2005 Audi A4 Quattro 3.2L Key Coding VIN: WAUDG68E25 Hello Audi Guru's, we had to put a engine control module in this one, lost the engine side of the old one. Can still read the immobilizer on old one. My question is has any one had luck with coding the key? I have the VAG software, or is there something out th...	View
	2005 Audi S4 4.2L Engine assy VIN: WUARL48H05 Has anyone removed a 4.2 v8 from an s4 without the use of an engine lift table? is it possible to separate the engine/transmission and remove it. The dealer says they come out as an assembly using a special table. Thanks.	View
	1978 Chevrolet Corvette 5.7L wipers i need a wire diagram for the engine comparment. mitchel doesnt go this far back. the engine was removed for a re-ring job and sat for several years apart, now installing the engine the wires at the starter arent marked where they go. the one in question is bl...	View
	1989 Chevrolet R2500 Suburban Silverado 7.4L fuel pump VIN: 1GNGR66N7K fuel pump keeps running after engine is shut off. Disconnected fuel pump relay and oil pressure switch and the fuel pump continues to run. I then pulled the ECM fuse and it finally shut the fuel pump off. Is this a possible ECM problem?	View
	2006 Chevrolet Silverado 2500 HD LT 8.1L hard start. stumble VIN: 1GCHK23GX6 hi guys, thanks in advance for any help. this truck is a government truck with relatively low miles. problem began about a month ago with complaint of hard start ..long cranking times. vehicle would always start but would crank for extended time then run poor...	View
	2006 Chevrolet Silverado 1500 WT 5.3L controler VIN: 1GCEK19B56 Gentlemen I have this truck in here with a condition where the left side air temp will go from cold to hot with no pattern. We had it in a couple of months back with the same problem and found a fix on iatn the consisted of a recalipration process ( unhook t...	View
	2007 Chevrolet HHR LT 2.4L Mechanical VIN: 3GNDA33PX7 Hi and thanks for your help, This truck has the check eng light on. I found the listed codes and can't find any test proceedures for the Cam Solenoid codes. I've checked my Solis, Vantage and Computer info systems. I've read that there are problems with this o...	View
	2005 Chrysler PT Cruiser Touring 2.4L engine VIN: 3C4FY58BX5 This is my first post on IATN asking for help. I help others every day on transmission related problems. Installed the trans and test drove. On the test drive i noticed a rattle when I put it in gear. It would only rattle for a second, so I decided to pull a s...	View
	2003 Dodge Grand Caravan SE 3.3L No Start VIN: 2D4GP44R43 The sensor ground ciruit in the PCM has gone bad 3 times in the last month, the original and 2 replacements! One thing I think is strange, the TCM (trans controller) shares this circuit (I don't know why and Chrysler has been NO help). When I unplug all the se... Trouble codes: P0123 (TPS volts high), P0118 (ECT vots high), P0108 (MAP volts high), P1598 (A/C pressure sensor volts high)	View
	2005 Dodge Ram 1500 ST 5.7L Stall, Misfire VIN: 1D3HU18D35 This 5.7 dodge has a misfire most felt when coming to a hard stop. It is bad enough to stall at times. Starts right back up and runs fine. Misfire will hapen slighty from time to time on throtle tip in and on cold starts for the first 10 seconds then clears up... Trouble codes: P0300, P0307	View
	1992 Ford F-150 Custom 4.9L Hesitation, Surge, Cuts out, MIL Lamp on, Gas transfer VIN: 1FTEX15Y0N This ford pickup with dual gas tanks was brought in with the above parts replaced. The rear gas tank was rusted out and had not been used. We installed a new gas tank and pump The fuel will transfer from the rear gas tank to the front gas tank, leaving the rea... Trouble codes: 179 (fuel system lean limit)	View
	2005 Ford Freestyle Limited 3.0L Hesitation VIN: 1FMDK06175 Hello i have a strange one hear the car has a hesitation wile driving it feels like the transmission is shifting funny there are no codes and i could only duplicate it once it was very minor the customer stated that it is intermittent it happens wile driving a...	View
	2005 Ford Vj van 2.4L Accumulator European transit van with semi automatic clutch, when you press the d button it selects first gear ok. But when you select reverse it locks into two gears and won't move. Unfortunately no info in repair manual and it specifies to refer wds instructions , but ...	View
	2006 Ford F-350 Super Duty XLT 6.0L No Start, Cuts out, Stall, MIL Lamp on VIN: 1FTWW31P96 this truck will start and run for 5 sec. then die. as it runs the exhaust smoke gets thicker and is white(unburnt diesel rite ?). its full of oil. ive got a mac mentor scanner and its slow on reading live data but the icp will go up to 1500-1600 psi when it st... Trouble codes: P0404	View
	2003 Infiniti G35 3.5L hvac VIN: JNKCV51E33 After installation about same results. suction line not getting cold pressure at idle lo side 45 high side 225	View
	2001 Jeep Grand Cherokee Limited 4.7L Air Temp From Vents VIN: 1J4GW58N21 See above.	View
	2008 Land Rover Range Rover HSE 4.4L radiator VIN: SALMF15408 This car was towed in the customer said it was loosing coolant when we inspected it we found the coolant tank and radiator full of engine oil. I suspect the oil cooler to be the problem it is sandwiched between the block and the oil filter.It has two coolant h...	View
	2005 Mercury Grand Marquis LS 4.6L Electronic VIN: 2MHFM75W35 hi guys i have a 2005 mercury grand marquis customer state a/c only blow on defroger wont blow throught vent removed a/c controller and check vacuum ok jump vacuum source to blue vacuum hose air blow throught vent replaced controller used a/c blow through vent...	View
	2007 Nissan Pathfinder LE 4.0L shift VIN: 5N1AR18WX7 Vehicle came in with transmission in limp home mode with glycol contamination in trans and trans oil in cooling system and lots of metal from transmission. Transmission fluid burnt and coolant silver gray. We had transmision rebuilt replacing tcm/valve body wh...	View
	1999 Oldsmobile Intrigue GLS 3.5L Mechanical VIN: 1G3WX52H7X I have car in for a coolant keak found that the rear crossover tube gasket was leaking is there a way to get the tube out with out pulling the rear mainfold off with the front tube on it can anyone help.	View
	2006 Saturn Ion-3 2.2L 1-2 Shift VIN: 1G8AL55F06 This is my motherinlaws car it sets codes p0700 and p0717. My understanding is that the input turbine speed sensor is bad can any one tell me how to replace it, any help will be useful. Thanks in advance Mike	View
	2008 Suzuki Forenza 2.0L MIL Lamp on VIN: KL5JD56Z98 Hi all, Thanks in advance for looking at this post. A member of my church owns this thing and they know I am a master tech, so I should be able to wave my magic wand over it and it would be fixed. Any way im a dodge guy. scanned it came up with two codes. 1st ... Trouble codes: 0700 (tcm request), 1855 (manufacture specific)	View
	1985 Toyota Tercel DLX 1.5L Excessive Emissions VIN: JT2AL32G6F This vehicle runs rich during loaded mode testing. After initial repairs, ground side of ebcv was monitored during test and found to work intermittently. Removal of vacuum lines from ebcv cause the engine to run considerably lean, to the point of being almost ...	View
	1990 Toyota Pickup DLX 2.4L Poor Idle Quality VIN: JT4RN01P8L I have a general question to ask about 02 sensors. We have this Toyota in where the customer had cut in to the o2 sensor wires and shortened them a couple of inches. I have a new mechanic that was told that you cannot change the length of the wires from the 02...	View
	2007 Toyota Highlander Hybrid 3.3L MIL Lamp on VIN: JTEDW21A77 Repeated Aux. battery temp code p0517, comes up every couple of weeks. SUV was hit 6 months ago, pushed up on a fire hydrant, Toyota replace the engine, We have not been able to duplicate the problem, we have replaced the aux battery temp sensor and pigtail le... Trouble codes: P0517	View
	2008 Toyota Camry XLE 2.4L A/C Compressor VIN: 4T1BE46K18 Customer stated that A/C suddenly quit blowing cold air. I installed my gauges and system pressures read like the system is not running. Although,there is plenty of refrigerant in lines and the compressor appears to be engaged even when the A/C is turned off. ...	View
	1999 Volkswagen EuroVan MV 2.8L 1-2 Shift VIN: WV2MH8701X Alright fellas. I am at wits end with this thing. It came to me from an outside shop. They put a OE rebuild transmission in this thing at the customer request while doing the timing chains for what I understand was a harsh shift throughout. They got a new TCM...	View
	2001 Volkswagen Beetle GLS 1.9L engine VIN: 3VWCP21C61 Car came in with rough idle, had a P1248 start of injection timing regulation control deviation. Dynamic timing was off and timing belt had a lot of slack in between cam and injection pump. Replaced belt set timing with a AST# 6800TDI timing belt tool. Idles f...	View
	2004 Volkswagen Beetle GL 2.0L Cuts out, Stall VIN: 3VWBK31C44 Customer states her car has stalled 3 times in 1 day, as she was slowing down/coming to a stop. We've scanned for codes, and there were none. During 1 test drive, we experienced an increase in engine rpm's as were trying to slow down, to make a turn. There wer...	View
	2008 Volkswagen Jetta City 2.0L Cruise control VIN: 3VWTK49M88 I am having problems with this Jetta ,in that the cruise does not work. I have checked all fuses ,tried new brake switch ,new cruise switch and even tried a known working throttle body with no change. This car came from the auction with cruise inop,no repair h...	View
	2004 Volvo XC70 2.5L Lighting VIN: YV1SZ59H04 After dipping from high to low beam it waits 7 seconds and lowers way down into backing mode. Display reads error when this occurs. Code CEM-8f15 says l light motor bad. Would that short the bus and cause this to lower both lights? DIM had no fault codes. Had ...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1994 Acura Integra LS 1.8L Cuts out, Poor Fuel Economy VIN: JH4DC445XR Thanks everyone for the help. I told the customer that we needed to replace the distributor with an OEM unit. He paid for his diagnostics and went to get a dist. from the wreck yard. I did confirm the fix but we'll see how long the used unit will last I suppos... Trouble codes: P0335 (CKP Sensor Malfunction).	14
	1996 Acura NSX 3.0L automatic climate unit in the dash VIN: JH4NA1289T I sent the HVAC control unit out for repair but have not received it back yet. I do beleive that is where the problem is. Thanks for all the help.	10
	2004 BMW 325xi 2.5L Vibration VIN: WBAEP33474 Ok, this one is finally fixed. To quote Sherlock Holmes: "when you have eliminated the impossible, whatever remains, however improbable, must be the truth?" There were two problems. First problem was a collapsed passenger side engine mount. Fo...	14
	2005 Cadillac CTS 3.6L bushing VIN: 1G6DM57745 Thank you for the imformation it was very usefull. job complete and customer happy. did not pull differential all the way out was able to press in and out with homemade tool. per. Juan.	5
	1972 Chevrolet C10 Pickup 4.1L Shifter Thanks for all the suggestions.Never found anyone that still sold the parts I needed. Everyone sells automatic columns but not the 3 on the tree manual type.We have pulledthe column out and sent it to columns galore.They said they have enough parts to refurbis...	20
	1999 Chevrolet Express 3500 LS 5.7L Poor Fuel Economy, Low power VIN: 1GAHG39RXX Thanks to all who helped with this, Mass airflow was the culprit. First time I've dealt with one that didn't have any MAF related codes but I should've went with my gut. Thanks again for the help guys. Trouble codes: P0131 (Oxygen O2 Sensor Circuit Low Voltage Bank 1 Sensor 1), P0137 (Oxygen O2 Sensor Low Voltage Bank1 Sensor2), P0151 (Oxygen O2 Sensor Low Voltage Bank2 Sensor1), P0157 (Oxygen O2 Sensor Circuit Low Voltage Bank 2 Sensor 2), P0463 (Fuel Level Sensor Circuit High Input), P0327 (Knock Sensor Circuit Low Input Bank 1).	12
	1999 Dodge Dakota 3.9L MIL Lamp on VIN: 1B7GG26X9X Thanks for all the replies. They were all helpful. I ended up replacing the ecm, everything was testing good. So it had to be the ecm giving false data. Trouble codes: P0753.	5
	2002 Ford Ranger XL 2.3L MIL Lamp on VIN: 1FTYR10D72 Turns out I failed to observe that It does in fact have a manifold runner system and the vacuum servo that actuates the manifold runner flaps was coming unhooked from the piece that slides onto the flap rail. The little piece has a plastic ball on it that the ... Trouble codes: P1537 (Intake manifold runner control stuck open bank 1), P0442 (Small evap leak).	9
	2003 Ford Expedition XLT 5.4L compressor VIN: 1FMFU16L33 Found the CJB in the right kick panel right where you guys said it was. #11 fuse was indeed blown. I replaced it and all is good. After you told me where to look I felt kinda stupid...should have looked there. Anyhow,thanks alot you guys are awsome	12
	2006 Ford Five Hundred Limited 3.0L No Start, Stall, MIL Lamp on VIN: 1FAFP28146 Fixed it. Got very good info and advice from Dan, Phil, Aaron, and James on this one. I ended up driving this for about 40 miles before I was able to catch it in the act and what I found was that the fuel pump percent "on" time would slowly begin to rise from ... Trouble codes: P0191 (Fuel pressure range/performanc), P0171 (Lean exhaust B1S1), P1774.	4
	2002 Honda Accord SE 2.3L Cooling Systems VIN: 1HGCG56792 Thanks for all the replies.Tested trans cooler,no leaks there,also no leaks from cylinders into cooling system.No oil cooler on vehicle.Since problem was internal and possibly due to porous block and with the mileage on car,customer opted to go with used engin...	26
	2003 Honda Civic EX 1.7L compressor VIN: 2HGES26783 thanks guys for the help the control head was the problem no ground on blue/white wire when pushing a/c switch new control head and system works great thanks so much	6
	2000 Jaguar XK8 4.0L Quarter glass VIN: SAJJA42C1Y Yes; this can be done without removing the convertible top. As Dana and Robert said, proceed with caution. James and Francis added a few more details related to unbolting the top mounting bracket and prying it inboard to allow the regulator to clear it. Again ...	4
	2001 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on VIN: 1J4GW48S61 GOOD AFTERNOON TO EVERYONE, WELL THIS ONE IS FIXED, AFTER RECHECKING EVERYTHING WE DID, I FOUND THE RADIATOR FAN HAD A DEAD SPOT IN IT, SOMETIMES IT WOULD WORK AND SOMETIMES IT WOULD NOT. I FOUND THE RELAY WAS BAD AND REPLACED IT WITH DEALER AFTER TWO BAD AFTE... Trouble codes: P0300, P0302, P0305.	28
	2004 Jeep Grand Cherokee Laredo 4.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1J4GW48S84 thank you to all that replied, Norris, Bradley,Nester and Cardell, you guys were spot on. The wiring leading to the pcm was grounding near the head bolt on the back of the engine. this is why we were still seeing negative voltage with the sensor unplugged. O... Trouble codes: P0174.	21
	2006 Lexus IS250 2.5L Compressor VIN: JTHCK26206 WE FOUND A BROKEN WIRE IN THE HARNESS NEXT TO THE COMPRESSOR.WE REPAIRED WIRE AND ALL IS WELL THANKS TO ALL	5
	1994 Mercedes-Benz S320 LWB 3.2L blower motor Thanks to all who replied, it was like most replies said it was the Regulator, we replaced it and all is good car has been gone for about a week again thanks to all	12
	1999 Mercedes-Benz ML320 3.2L A/C compressor VIN: 4JGAB54E4X I'm going to classify this as "kind-of fixed" in that the solution was to wire in a fused and relayed switch for the A/C compressor instead of changing the AAM. The customer wasn't ready to throw that kind of money at the module and reprogramming, so at least...	9
	2003 Nissan Xterra SE 3.3L compressor Thanx to all the useful info I went on vacation and the customer did also it should be back in this week I will repost and close when I fix	4
	2004 Toyota Tacoma 3.4L Poor Fuel Economy, vibration VIN: 5TEWN72N44 well sorry for the delay. the customer is an electrician and with all the storms he is busy. i ended up getting rotors from the dealer and got rid of the braking vibration. but the high speed vibration is still there. i tried my wheels off my toyota, tried dif...	10
	2004 Toyota 4Runner Sport 4.0L No Start VIN: JTEBU14R94 Thank you all for the great information. Andrew from Belieze hit the nail on the head. After pulling the valve cover and seeing the vvt-i gear, it is infact a 2005 engine. The 2004 engine has 3 finger relutor. The 2005 has a hall effect style gear. Here is the...	14
	2006 Toyota Tundra SR5 4.7L Converter? VIN: 5TBDT44156 Tried transmission fluid change with no help. Rebuilt transmission and changed torque converter. One set of clutches in particular looked like it had been chattering. Drives great. Thanks for all of the input.	9

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