Automotive Technicians Technical Discussion and Fixes for Sep 18, 2012

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	Help Request	Answers
	2002 Audi Allroad Quattro 2.7L cooling system VIN: WA1YD64B22 Hi Audi techs. I have a 02 allroad that gets hot on the highway with the A/C on.Without the load from the A/C the temp.stays normal during idle cruise and acceleration.The viscous mechanical fan does not seem to turn fast when the engine is 99C hot but that d...	View
	2005 Audi A4 1.8L Cuts out, Stall VIN: WAUAC48H95 The vehicle came in with misfire on the #1 and #2 cylinders. We replaced the all the spark plugs and coils. After repair the vehicle will start up but die after 3 seconds. Rescanned the vehicle after spark plugs and coils and no codes have come back. We have r...	View
	2000 BMW 323Ci 2.5L windows/wipers VIN: WBABR3348Y hello everyone- one of my tech's unhooked the battery for replacement-you guessed it!-no backup battery power. now here is what we have-or do not have.it is a convertible so the windows should drop when door handle is pulled. nope. no interior lights,no one to...	View
	2003 BMW X5 4.4i 4.4L Nav/audio/ on board computer VIN: 5UXFB33513 Nav/audio/on board computer, inop/intermittent and will not stay asleep, Nav display will wake up displaying (BMW). No communication with all components. Problem is erratic sometimes components will work while others don't.	View
	2004 BMW M3 3.2L Misfire, MIL Lamp on VIN: WBSBL93424 car came in running rough. read diagnostics. FUEL INJECTOR CYLINDER 6 code present. swapped cylinder 1 and 6 injectors. car ran well for 2 weeks!! car returned runs rough. same code present. swapped cylinder 1 and 6 spark plugs and coils. same code. found wire...	View
	2007 BMW 328xi 3.0L transfer case VIN: WBAVC93557 hey fellow iatners, i think i know whats going on with this but id like to have some other inputs. this 07 bmw is throwing a 5f3a code scanner decribes it as distribution gearbox ecu vg clutch defective (clutch is open) rear drive warning light on. this code o...	View
	2008 BMW 650i 4.8L passenger window VIN: WBAEA53578 We have a BMW 650I with a warning "power window anti trap function" and the passenger window will not raise up in one motion, only in increments. I know this function is to keep from getting a finger/head/ect... trapped. I have checked here and on the forums f...	View
	1996 Cadillac Seville SLS 4.6L Excessive Emissions VIN: 1G6KS52Y7T Good Morning. Not sue where to start with this Cadillac. I appreciate any ideas you can give me. 1996 Cadillac Seville 4.6 failed California emissions test, but not enough for me to have an idea where to look. Car runs great, not codes stored no misfire hist...	View
	2002 Cadillac DeVille 4.6L abs VIN: 1G6KD57Y82 Vehicle came in with intermittent service stability light coming on with abs light and trac light also. It had a history code c1234 stored and no current codes. So we replaced the left rear hub bearing and stub harness. Test drove it and all was good, so we ga...	View
	1989 Chevrolet Corvette 5.7L Fuel Injector Pulse VIN: 1G1YY2187K This headache has been sitting in my bay for 2 weeks now, and I am about to give up hope! This well taken care of 1989 Corvette ran when parked 2 years ago, and the owner went to show the car to sell it and it would not start. Suspecting a bad fuel pump, they...	View
	1992 Chevrolet Astro CL 4.3L Hesitation VIN: 1GNDM15Z3N replaced temp senser because of incorrect temp reading eng. runs rough seems like it does not want to take gas. manualy apply vacume to senser when running it will take gas and runs ok. do u know if there is a bulliten on calibration prom Trouble codes: 33 (map sensor signal voltage high vacume low)	View
	1998 Chevrolet Corvette 5.7L Power windows, power door unlock VIN: 1G1YY32G0W 1998 Corvette. The driver’s side door panel switches, only some function operate correctly and we have no communication with the LH Door Module. Trouble codes of significance are Class 2 TXD Failures in the RFA (Remote Function) and the RH Door Module (U109...	View
	2006 Chevrolet Impala LS 3.9L Starter VIN: 2G1WS55146 Car was towed in as a no start, customer says car started ok untill he installed amps and subs, then no start. Here is where it gets strange, car starts and runs fine but there is a delay of 3 to 8 seconds between the time the key it turned to start and the st...	View
	2007 Chevrolet Uplander LS 3.9L transmission VIN: 1GNDV23167 Has a big list of codes.This transmission just stopped pulling forward or reverse,this is in transmission codes.P0562,P0572,P0602,P0603,P062F,P0711,P0716,P0717,P0722 ,P0723,P0741,P0742,P0751,P0752,P0756,P0757,P0842,P0973,P097 6,P1826, It clears codes but under...	View
	2001 Chrysler Town & Country EX 3.8L ecm VIN: 2C8GP54L01 Customer replaced egr equipped engine with non egr engine. I would like to program the ecm to a non egr ecm but I can't figure it out. New ecm programmed to non egr vin# just for testing and egr code 0403 comes back. Any thoughts? Thanks you in advance!	View
	2002 Chrysler Sebring LX 2.7L Cooling System VIN: 1C3EL46R12 Having troubles with this one. The coolant starts boiling over even though the temp gauge is in the middle; normal operating temps. Data and infrared temp gun are similar. Can hear the coolant boiling inside the expansion tank and if we let it go will eventual...	View
	2002 Chrysler Town & Country EX 3.8L speedo VIN: 2C4GP74L32 Weird one Chrysler gurus. when i turn on ac with gear selector in neutral thru low, speedo fluctuates between 0 and 25 mph, at the same time trans jumps between 1st and 2nd gear. Doesnt do it in park or reverse. Trans man said output speed sensor, changed it w...	View
	1998 Dodge Ram 2500 5.9L Mechanical VIN: 3B7KC266XW Hi, I have this Ram 2500 brake problem I am trying to solve. This is a hydroboost system (if it makes a difference). The problem is the customer states after driving for about 30 to 45 minutes and at highway speed, the brakes will become stuck on. I have ...	View
	1999 Dodge Ram 2500 5.9L Cuts out, Misfire, MIL Lamp on VIN: 1B7KF23Z8X hi guys i have a 99 dodge truck was brought to me from a body shop they put a new motor in it. the truck has a hard code p1391 and an intermitant p0340 it also misses on acceleration but not at idle, both crank and cam sensors are new from dealer fuel pressure... Trouble codes: P0340, P1391	View
	2001 Dodge Caravan SE 3.3L Radio VIN: 2B46P44R61 Custmoer Came in with eq lights flashing on radio. Tells me the radio worked fine intell he changed the battery. Now the lights on the trebble and bass controls flash and the radio will not come on. From what i can see there is no security code for this radio....	View
	2003 Dodge Grand Caravan Sport 3.3L engine VIN: 2D4GP44393 It can in overheating replaced head gaskets and it had a busted rad.changed thermostat and it still over heats. as long as the rad cap is off it runs half way on gauge put cap on drive 1 mile and it overheats wait 5 mins. pull cap off temp. hand goes to half w...	View
	2000 Ford Taurus SE 3.0L keep alive memory VIN: 1FAFP5821Y this is one of our company vehicles, i can bring the monitors to ready status but randomly the kam resets and some and sometimes all of the monitors are reset.It will reset the o2 sensors, the evap, its random.I have tested the supposed wiring and pin loctions...	View
	2003 Ford F-250 Super Duty Lariat 7.3L fuel VIN: 1FTNW21F33 had truck come in for loss of fuel mileage and fuel smell.drove truck and it ran good but had some poping like a backfire a few times.found the valey had fuel in it under the fuel filter.used a mighty vac to suck out all the fuel and started it up and sprayed ...	View
	2007 Ford Focus SES 2.0L communication VIN: 1FAFP34N67 I have this 2007 ford focus cant communication with engine, transmmision, air bag...or abs. With K20 key .But can communication with K17 key. This snap-on scanner solus . Just got up dates 3 weeks ago , with new version 12.2 softwear. Same with 2000 mercury vi...	View
	2007 Ford F-150 XLT 5.4L Timing Chain Marks VIN: 1FTPW14V47 Vehicle came in for broken exhaust manifold bolt on #1Cyl. We ended up removing the passenger side head. Machine shop drilled out the bolt and the head's back. However, customer wants to put in a new timing chain, guides, tensioners,etc. My technician made the...	View
	2008 Ford F-250 Super Duty XLT 6.4L No Boost/ Low Power VIN: 1FTSW21R48 This truck has no/ very little boost. 1-3 Psi at best. Boost comes in and out. No boost leaks. Turbo does not seem to be spooling. Variable lever moves smoothly; vanes do not seem to be sticking. Hear a weird squealing/ screeching sound that we cannot pinpoint...	View
	2003 GMC Sierra 2500 HD SLE 6.6L 1st gear VIN: 1GTHK23113 I have this 2003 GMC 2500 HD it has the Allison tranny shutters when taking off from stop under 10 mph or until it shifts up.no problem on down shift. after that no problems. no codes are stored. we serviced trans fluid and filter Dextron iii and allison spin ...	View
	2005 GMC Sierra 3500 SLT 6.6L injection VIN: 1GTHK332X5 tested dtc p0202 and p2149 repaired wiring and re tested,suspect FICM driver shorting	View
	2007 GMC Sierra 2500 HD Classic SL 6.6L Driver Door Module One for you GM dealer guys. Got this GMC 2500 that the driver door module would not operate the drivers window, all the other windows worked fine. Replaced DDM, when they went into Tis to Web to program the new DDM as soon as they went to download, an error me...	View
	2007 Honda Fit Sport 1.5L No Start VIN: JHMGD386X7 This is my cousins car. Cranks, wont start, intermittently. Starts ok today. The other day it took 8 tries to get it started. Then runs fine. No codes. Don't see a port to check fuel psi. Filter is non serviceable. Air filter ok. Spark plugs ok. She did not no...	View
	2004 Hyundai Sonata GLS 2.7L Misfire VIN: KMHWF25H94 car came in running rough, found bad wires and coil. replace those items. now have misfire on # 5 cly.you start car it run good after a few minutes it loses injector plus on # 5. keep running it loses pulse on # 1. all other cly. ok. tested all wiring. check g... Trouble codes: P0305	View
	2007 Hyundai Santa Fe GLS 2.7L headgaskets VIN: 5NMSG13D97 Good morning Automotive Warriors,I have a 2007 Hyundai santa fe 2.7 towed in for a engine stopped running no crank or labored crank.Looks like the headgaskets let go,my question is at 42,000 miles what would have caused this problem.Customer has kept up with b...	View
	2000 Mercedes-Benz ML430 4.3L starter VIN: 4JGAB72E8Y customer states that from time to time vehicle wont start, but if he lets sit for a few minutes it will. we replaced the reference sensor 4/3/12 also had misfires customer did plugs and wires. got vehicle started dash, coolant fan are going crazy.Has lots of c...	View
	2002 Mercury Sable LS Premium 3.0L Stall VIN: 1MEHM55S22 02 Mercury Sable came in with the check engine light on with a code of P0191 Fuel Rail Pressure Range/Performance. We tested the fuel pressure at the rail and it was bouncing between about 26-34lbs almost like the fuel pump was turning off and on. Customer sai... Trouble codes: P0191 (Fuel Rail Pressure Range/Performance)	View
	2002 Mercury Mountaineer 4.0L Mechanical VIN: 4M2ZU86E22 hello again,another ford with engine noise,just fixed a 4.6l with engine noise,it was the cam tensioner and guide on the left front head,this 4.l is making same noise,removed both valve covers and none of the guides are broken,found some air leakdown around ca...	View
	2002 Toyota RAV4 2.0L engine k gentlemen , i have a toyota thats kicking my but , car came in with this rattle coming from the timing cover , i diagnosed it as timing chain stretched ???!!! so i quoted it and made the appointment to install . got it all back together and the vehicle start...	View
	2006 Toyota Prius 1.5L No Start VIN: JTDKB22U86 Not up to to speed on hybrid yet! car gets towed in for no start will not go,car came from a quick lube chain,customer got one block down street and master warning light came on, car eventualy started loosing power and stopped shortly after.we checked for code... Trouble codes: P2111, P3190	View
	2007 Toyota 4Runner Limited 4.7L front wipers and hatch window VIN: JTEBT17R07 the front and rear wipers and washers work normally at the wiper switch. the problem occurs when you have everthing off and activate the rear hatch window down. the window goes down and up as designed but the front wipers turn on with the wiper switch off. the...	View
	2002 Volkswagen Jetta TDI 1.9L Surge VIN: 3VWSP69M32 The main issue I am having is Once you crank it up the EGR vac solenoid goes to 85% for several minutes then drops to 4% With it at 4% you put it in any gear but park and reverse it goes from 4% to 85 % runs bad and smokes at the 85% If I remove the vac hose a...	View
	2002 Volkswagen Jetta GLS 1.8L Poor Idle Quality VIN: 3VWSE69M12 Timing belt stripped and bent all the valves on this Jetta. Got a new head and installed it. Now when it is started cold, it idles very poor for about 30 seconds and will barely move, then it evens out and runs great. Checked belt and chain timing, both good. ...	View
	1999 Volvo V70 X/C AWD 2.4L Hesitation, Stall, MIL Lamp on VIN: YV1LZ56D5X Volvo tech, please help. Car came in with p0121 throttle sensor implausible signal. We replace the throttle body and we got the vadis scanner, but my volvo guy is on vacation now, and wont be back in 2 weeks. Can anyone kindly guide me step by step how [...] do i...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1992 Acura Integra LS 1.8L No Start VIN: JH4DA9453N Finally got the ecm back, plugged it in and it fired right up. Faulty parts make this business all that much funner. Thanks to all who took time to reply. Allen	18
	2005 Audi A8 Quattro L 4.2L MIL Lamp on VIN: WAUML44E55 Finally car is fixed.Thank you to all who replied. What I have found is this,device called by Mitchell secondary air injection valve,the one that was blowing smoke and sucking air while car was running is actually PCV valve.I never got straight answer from any... Trouble codes: P1136, P0171, P1138, P0174.	13
	2001 BMW 740iL 4.4L Acceleration VIN: WBAGH83411 Yes the vehicle is fixed. Was waiting to see if the repair would hold up , then time just gets away. The vibration was gone after disassembling and greasing the rear CV Joint. The knocking was gone with the new engine mounts. Customer has put over 2000 miles...	19
	1991 Chevrolet Corsica LT 3.1L No Start, Cuts out, Stall VIN: 1G1LT53T9M OK, guys, I wanted to update (reiterate things), but I can't, so I'm closing this one for now. The injector suggestions have merit, and some of them do ohm low, but I never lose the pulse or power on either circit; As it's shutting down,the pulse is still pr...	25
	2000 Chevrolet Blazer LS 4.3L transfercase VIN: 1GNDT13W5Y thanks for everyone's help. We put on a new TCCM and it works just fine.	6
	2007 Dodge Dakota SLT 4.7L Suspension VIN: 1D7HW42P47 well I really didnt get any concrete answers . I guess Id start with shocks since chryslers are known for crappy shocks . The guy hasnt been back yet but no exact answer on this one sorry. I will be reccomending 4 shocks first and see where that leads us. Tnan...	7
	2001 Ford Excursion Limited 6.8L steering drift VIN: 1FMNU43S11 I want to thank everyone for the replies and especially about the tires. I am going to list as fixed although the vehicle is in limbo, but I think my responsibility is fulfiled. Ok hears the scene, today me and my tech drove it at speed with tires at door jam ...	17
	2003 Ford Taurus LX 3.0L Surge VIN: 1FAHP56S43 Customer took vehicle and is not returning. I tryed some of your ideas and none worked , we are not equipped to replace Ford pcms so it was decided to ship the vehicle .	14
	2004 Ford F-350 Super Duty XL 6.0L broken part VIN: 1FTSW31P34 Thanks to Michael & Steven for the info on how to remove the oil pan.Gave the customer the option to remove the oil pan he did not want to remove it he just wanted for us to try & remove the last little part of the sensor housing. Heated a screw & stuck it in ...	6
	2007 Ford F-350 Super Duty XLT 6.0L Noise VIN: 1FTWW31PX7 Thanks to all who replied. The problem was an extremely small crack in the y-pipe flex joint. IATN fixes another one. You guys rock!	20
	1999 GMC K1500 Sierra SLE 5.7L master cyl VIN: 1GTEK19RXX many pointed out about rear adjustment and trapped air and pinching off the lines to see if its in the calipers another good point was to plug the master and see if it still drops thjen you know its the master.and other said about a power bleed. everyone has ...	19
	2002 GMC Sierra 2500 HD SL 6.6L Mechanical VIN: 4X4FCAE202 Thanks for all the help. Turns out i had the vin wrong on this truck. Ends up being a injector connector at #2 injector Thanks jim and every one else who help me	7
	2003 Honda Civic EX 1.7L No Start VIN: 1HGEM22983 THIS ONE WAS GOOD ONE IT DID END UP BEING THE G101 CIRCUIT GROUND AT THE THERMOSTAT HOUSING. THAT WAS FUNNY, GROUND SIGNAL WAS GOOD AT THE BOLT BUT THE GROUND WAS NOT PRESENT AT THE WIRING, ALL CONECTIONS WERE TIGHT BUT NO CONNECTION WAS PRESENT, ALL 4 WIRES W...	6
	2004 Isuzu Axiom S 3.5L Cuts out VIN: 4S2DF58YX4 Thanks for all help. After more testing found maf dropping out intermittantly. Cleaned all connections and inspected maf wiring- looked good. Test drove vehicle again and ran great, gave vehicle back to customer to drive and verify repair. Trouble codes: P0300, P0302, P0304.	3
	1993 Jeep Wrangler S 2.5L Excessive Emissions, Misfire, Poor Fuel Economy VIN: 1J4FY19P1P Thanks to all helpful technicians on this one. Sometimes it takes gathering of the minds to solve the simplest of problems. Technician #1 here at the shop solved the mystery. He checked the other end of the vacume line to the MAP sensor. My end was 18in. at id... Trouble codes: 52 (sustained rich f/a condition).	4
	1996 Lexus ES300 3.0L vss circuit VIN: JT8BF12G0T Ok so after acouple people getting back to me too look at electrical issues thats what i did. Everything checked out ok. I had another lexus come in with a bad alternator and it also was doing the same thing. We replaced the alternator and battery on the other...	3
	2000 Lincoln Continental 4.6L ride height VIN: 1LNHM97V2Y Thanks to all who replied. I sold the customer a conversion kit and called it a day. I wanted to know how to diagnose this system. With a Genesis Scan tool I could activate the compressor for 3 sec. Anyway for the cost to repair it made much more sense to con...	16
	2001 Lincoln Town Car Signature 4.6L No Start VIN: 1LNHM82W01 Vehicle remains in no start condition, referring to another tech.	13
	1992 Mercedes-Benz 500SEL 5.0L No Start VIN: WDBGA51E9N The customer has elected to tow this vehicle home without fixing it, most everyone mentioned the engine wiring loom and indeed there were several bare wires, we recommended replacing this loom and strongly feel the loom was one of the major problems, hopefully...	8
	2001 Pontiac Firebird 3.8L vtd VIN: 2G2FS22KX1 first of all thanks to all that gave me their help.the fix was to replace the bcm and the ign.lock cylinder sensor.the bcm because it would not learn the fob,the broken wire for the key sensor fixed all the other codes.charles and gordon hit it on the head.cra...	7
	2011 Ram 2500 Laramie 6.7L Power steering VIN: 3D7UT2CL0B As recommended we replaced the power steering hoses and the problem was corrected. In removing one of the hoses we found the plastic tubing (that internally came loose) wedged in the fitting. A poor design from Dodge. We reallly appreciate all the help. Than...	8
	2008 Subaru Outback 2.5i 2.5L Mechanical VIN: 4S4BP61CX8 I agree with all who said replace motor as did the owner. Owner has decided just to sell car for what he can get for it with a blown engine. Sorry not more helpful and appreciate all responses. Regards, Nick	10
	2002 Volkswagen Jetta TDI 1.9L EGR Vac Regulator VIN: 3VWSP69M32 Ok The intake was plug'd up bad so was the EGR/Flapper valve plus the EGR portion would not open after cleaning the intake and replacing the EGR valve I fired it up and I still had the same issue So I unhooked the EGR vac line and went for a drive while...	5
	2008 Volkswagen GTI 2.0L Hesitation, Misfire, MIL Lamp on VIN: WVWHD71K88 First,I would like to thank everyone who helped.Well come to find out,I ordered a new pcv valve assembly from the dealer and the new one worked like it should.I just couldn't believe I got a bad part from the dealer but I guess it happens.When oil cap was remo... Trouble codes: P2279, P2015.	7
	2004 Volvo XC90 T6 2.9L transmission VIN: YV1CZ91H74 I want to thank everyone that replied, It was all very helpful. The trans has to be replaced,That will be done at a later date. Hopefully by someone else. I was thinking that it was something small and could be repaired but this is an ongoing problem with no r...	9

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