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Prev Professional Automotive Repair Technical Discussions for July 29, 2013
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2002 Acura TL 3.2L Misfire VIN: 19UUA566X2
Thanks in advance, I got one here driveing me nuts. Car came in complants of misfireing and check engine light on. Scan codes found p0301 302 304 306 300 also codes p1456,p0740,p1399. swaped coil with known good one car smooth up to the point i ordered the oth... Trouble codes: P1399, P0304
2007 Audi A4 Quattro 2.0L MIL Lamp on VIN: WAUDF78E37
Car has come in from a used car lot who sold it and now has a customer wanting the cel and fuel gauge fixed. Also wanted the gas cap missing warning fixed. I pulled the driver side sender and found it broken at the top. Installed a new one filled car to about ... Trouble codes: P1093, P2177, P2279, P0455
2001 BMW 330Ci 3.0L reverse gear VIN: WBABN53421
vehicle came in with check engine lamp on. codes p0128 coolant temp too low code p0171b,p0174b system too lean p0300,4,5,6b random misfire replace spark plugs . cleared codes and updated ECM soft ware with auto logic. after two road test , back to shop and no ...
2006 BMW 325i 3.0L Wipers VIN: WBAVB13576
Hello BMW Techs, The wipers park in the middle of the windshield and the relay has been replaced. We have no codes for the issue. Has anyone run up against this issue?
1993 Cadillac Allante 4.6L no power VIN: 1G6VS3392P
vehicle has new fuel filter and cat converter, no codes, no misfire, no vacuum leaks, and the converter is turning cherry red, the car has no power
1999 Cadillac DeVille Concours 4.6L pass key VIN: 1G6KF5493X
Custumer brought in. He was jumping it off and said it would run. Battery was no good. Would not take charge. Replaced battery. Car cranks and trys to start on time, but sets code B2750. We have done a lot ignition switches for no crank, but not one for no sta...
1998 Chevrolet Astro 4.3L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 1GNDM19W5W
currently po300 multiple cylinder misfire, check injection system :found faulty injectors for bank 1, replaced new fuel injection system all the injectors and assembly, clear codes and retest[ engine running rough,at this time po 300 is on. perform compression... Trouble codes: P0300, P0302
2000 Chevrolet Suburban 2500 6.0L No Start VIN: 3GCGK26U6Y
Hello and thanks in advance: I have this Suburban that I recently replaced the (main) fuel pump module, and all seemed well for about 10K miles. Recently the car ran out of gas and to my surprise I realized it has an auxiliary tank (which was full even though ...
2003 Chevrolet Tahoe LT 5.3L warning light VIN: 1GNEC13Z93
ok guys heres what i got i replaced the factory air ride with monroe conversion kit and i install all the restiors like it said but i still have the warning light ive cleared all the codes but code num c0666 level control exshust valve circuit malfunction is t...
2003 Chevrolet Trailblazer LTZ 4.2L compressor VIN: 1GNDS13S53
Intermitent problem with compressor not coming on. computer not granting permission for ac to opperate. on scan tool rec. switch and ac switch shows off. if i press the buttons the lights light up on scanner shows on then right back off
2001 Chrysler PT Cruiser 2.4L limp mode VIN: 3C8FY4BB01
Got a feelin' with this is one that I'm just gonna have to dig it out but figured it won't hurt to see if anybody's been there. Got this '01 PT Cruiser 2.4 non turbo that was wrecked and purchased by a used car lot. The side where the trans computer is locate...
2002 Chrysler Sebring GTC 3.0L MIL Lamp on VIN: 4C3AG52H82
vehicle came in with check engine light on. customer states the light came on while driving and he noticed the fuel pump was louder than usual, the transmission shifted a little quirky and vehicle had lost some power. i checked for a signal from the cam and cr... Trouble codes: P0335 (Crankshaft position sensor circuit malfunction), P0340 (Camshaft position sensor circuit malfunction)
2007 Chrysler Pacifica 4.0L Speed gauge VIN: 2A8GF48X57
I have this 07 pacifica. The speed gauge is 20mph higher than actual mileage. I drove with scan tool connected the vehicle speed sensor is working good not drop outs or glitches, but the gauge is off when you compare both. All the ABS speed sensors are working...
1995 Dodge Intrepid ES 3.5L engine VIN: 2B3HD56F7S
started runnin a little heat,tow n to save engine.good low mileage veh with interminent coolin fan motors operation.when fans r on no problem but will not engage cooling fans w/o a/c on on its own.w/air on fans come on for a moment,there r times fans will stay...
2001 Dodge Ram 3500 5.9L Hesitation VIN: 1B7MF33761
Hello. Have a problem with power on this truck. Idles good. Just did head gasket due to freeze plug blowing coolant into oil. After repair and 5 oil changes to get water out I drove it and this thing won't move like it use to. Turbo fins spin smoothly. No inta...
2008 Dodge Ram 5500 SLT 6.7L MIL Lamp on, U140d VIN: 3D6WC78A78
Vehicle tows heavy loads and it will enter a "limp mode" as customer states with no throttle response and transmission will not shift properly. This turns on a dinging "see dealer now" message in overhead console. It will then bog down but not stall and all of... Trouble codes: U140D
2004 Ford F-350 Super Duty Harley-Davidson Edition 6.0L brake pedal and steering wheel VIN: 1FTSW31P24
Hi my name is sal. and I wanna thank. every one in advance for taking the time to read this. well!! this one comes from two other shops complaining of when going around corners aply brakes and try to move the steering wheel it will get super hard to turn and b...
2004 Ford Escape Limited 3.0L Alternator VIN: 1FMCU94104
Vehicle alternator has been changed out twice with motorcraft unit, after replacement the unit is charging at 13.6 volts but starts dropping as vehicle warms up down o 12 volts or just below. The cable connection from the alternator at the underhood junction b...
2006 Ford E-350 Super Duty 6.0L no oil pressure VIN: 1FDSE35P46
This van was towed in as a no start. Has 0 oil pressure on the gauge no oil filling the oil filter housing when cranking. over filled oil by 1 1/2 gallons to check for a bad pick up tube still no pressure. than drained oil and put camera in pan to check pick u...
2007 Ford F-150 XLT 5.4L starter VIN: 1FTPW14V17
We inherited this truck after another shop installed a brake controller and trailer tow wiring and then the truck wouldn't crank over to start. It was then towed to our shop. The first time that we tried to start it there was a no crank condition. At times it ...
2007 Ford F-150 XLT 5.4L No overdrive VIN: 1FTPW14537
Hi to all transmission techs. My expertise as a tech is in diagnosis of drive ability problems and general repairs. Have done some electrical transmission repairs but no major repairs as rebuilding. My f150 does not go into overdrive. Has no codes . 1 and 2 sh...
2008 Ford Taurus X SEL 3.5L abs, traction and low tire light VIN: 1FMDK02W98
intermittently the abs, traction and low tire light will come on. It can come on when first starting or after driving for many miles, usully will go off after a short distance. Altho it may stay on until the car is shut off. It has u0140 in the instrument clus...
2011 Ford Edge SEL 3.5L Exhaust smell VIN: 2FMDK3JC5B
Hello everyone, I have an exhaust smell coming into the cabin during heavy acceleration and on the highway 75+ mph. I have looked for a lift gate seal leak and undercarriage leaks and can't find anything. Also there are no leaks in the exhaust system. I have d...
2000 Isuzu N NPR-HD 4.8L master cyl. VIN: JALB4B141Y
vehicle came in comnplaint of low brake pedal.adjusted rear brakes first,pedal slightly better.bled complete brake system,found air in left front caliper.pedel was at top where supposed to be.customer picked up vehicle on friday.drove home no problem.vehicle s...
2003 Lincoln Aviator 4.6L Noise VIN: 5LMEU78H13
This makes a somewhat loud noise at the timing cover area and drivers side valve cover. Only present when hot and at idle. If the engine is making noise at idle it will disappear when rpms are raised above 1200ish. After returning to idle noise will return aft...
2008 Mazda CX-7 Touring 2.3L Compressor VIN: JM3ER293X8
I think I am lost on this one. Customer complaint is that after driving the A/C stops blowing cold. After 30 minutes or so, the relay coil looses it's ground. If I ground it the compressor works fine. Pressures are normal for this part of the world, 35-38 lo...
1991 Mercedes-Benz 500SL 5.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: WDBFA66E2M
hi guys, i'm having some issues with the above mercedes. my BIGGEST problem is that i cannot find ANYTHING for diagnostic information on this thing. it's running as if it's not getting either enough fuel, or too much fuel. at idle, it'll run to the point w...
2000 Mercedes-Benz CLK430 4.3L Battery VIN: WDBLK70G8Y
This vehicle is a real problem. The drain on the battery is from fuse 16 in the under hood fuse box, when removed the drain is gone. There are early and late models within this year model. Both Diagrams are wrong. The early diagram shows fuse 16 feeding the st...
2007 Mercedes-Benz GL450 4.6L temp. adjust button VIN: 4JGBF71E37
Hi Fellows, we did some engine repair work and of course have to drain the complete coolant system and engine oil. After refill engine oil and coolant,we've to adjust the temp. at the climat control to max. heat,so we can bleed complete air out of coolant syst...
2006 Nissan Sentra S 1.8L No Start VIN: 3N1CB51D86
This Nissan has been to several other shops where they replaced the cam and crank sensors, spark plugs and the ecm for a no spark condition. I installed a dealer crank sensor and the vehicle starts and runs. After it warms up and you shut it off, when you try ...
2006 Nissan Maxima SL 3.5L Timing chain VIN: 1N4BA41E66
To all Nissan techs out there. Got this maxima that has a rattling noise. Took out the primary tensioner cover and found the shoe broke and the tensioner stretched out. My question is, is there a way of replacing the secondary chain tensioners without removing...
2009 Nissan Altima S 2.5L compressor VIN: 1N4AL24E89
This Altima has no compressor engagement. The refrigerant resting pressure is 95 psi. The fuse 41 has 12v on both sides with the key on. The led on the ac switch lights when the button is pushed, The pressure switch on the drier has 5 volts across the colored ...
2009 Smart Fortwo Brabus 1.0L clutch acuator VIN: WMEEJ31X99
I am suffering from lack of information in the USA about Smart cars in general. This jewel came in with no start, no starter. We worked out that the CLUTCH ACTUATOR MOTOR shaft had sheared. We installed a new clutch actuator assembly, and test drove the car se...
2001 Subaru Outback 2.5L Bent Valves VIN: 4S3BH665X1
Hello everyone, This car broke a timing belt by wrapping it around the crankshaft pulley about 100,000 miles after it was last replaced. It appears to have bent every one of it's exhaust valves. According to alldata all sohc subie motors are free wheeling. Any...
2007 Toyota Sienna LE 3.5L MIL Lamp on VIN: 5TDZK23C87
Hi all thank you in advance and all help is appreciated. We have a 07 Toyota Sienna Van that continually spits out a code P0101. We replaced the MAF and the fuel pump both with dealer parts. If you clear the code it stays out for sometimes a day or can be as l... Trouble codes: P0101 (Mass or Volume Air flow circuit range/performance problem)
2000 Volkswagen Beetle GL 1.8L abs light VIN: 3VWDD21C8Y
hi guys I has this vw beetle 2001 change the new battery charging syt is ok has new fuse box over the battery, a used brake pump with module abs and still has a hard code light on 00668 supply voltage terminal 30 signal out side esp,,, any help tks guys
2001 Volkswagen Passat GLS 1.8L CHIME inside cluster VIN: WVWAC63B21
Help! This car has a gremlin, it comes and goes, as it pleases. We have a door /seat belt chime that comes on and won't go off.Also, when this happens ,the head light steady chime is on and when lights are on. We have ckd. all the door latches ,comfort con. ...
2003 Volkswagen Passat GLS 2.8L No Start VIN: WVWRH63833
Hello Guys, We put a used engine in this car, the original engine started but had other issues, now this car won't start, it has spark injector pulse, fuel and good compression. we checked all the sensors and seemed to be all in place. Thanks in advance for ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW X5 4.4i 4.4L Manual Lever Position Sensor VIN: WBAFB33511
Vehicle sat over the weekend and we found the battery dead with out anything left on. The battery would not charged and tested bad. Replaced the battery and found a large draw from the alternator, must have had a shorted diode. Replaced that and then we were a...
2003 BMW 330Ci 3.0L Electronic
Finally got this car back in the shop, we did remove the plugs only to find they were the correct NGK plugs. We smoked the intake system and found no leaks. We removed the MAF sensor and found quite a few insect wings on the screen of the sensor, we cleaned th...
2005 BMW M3 3.2L fuel pump VIN: WBSBR93425
andres was right. module in side panel on passenger side. and was bad!!! car runs!
2008 BMW 128i 3.0L steering angle sensor VIN: WBAUP73578
Thank you. A day to download from BMW before we could even get to the car. At thirty dollars a day we decided it was just not cost effective to go on.
1995 Buick LeSabre Custom 3.8L No Start, Cuts out, Stall VIN: 1G4HP52L9S
Thanks for all replies,removed wiring harness for icm,crank and cam sensors.Check wiring carefully and found no faults,pinged all connectors,reinstalled harness,been gone for 10 days now.I assume this one is fixed,thanks for all the replies,this site is the be...
2003 Chevrolet Silverado 1500 4.3L Misfire, MIL Lamp on VIN: 1GCEC14X93
well ive checked everything on this truck I went a head and put new valve springs on it thinking it was floating a valve I unplug o2 sensors checked the ground wires on the back of the engine several techs were saying to check the distributor gear but I replac... Trouble codes: P0300.
2006 Chevrolet Silverado 2500 HD LT 6.0L speedo, odometer,cruise control VIN: 1GCHK24U06
I want to thank the 6 people that replied. Matthew and Craig hit it on the head it was rodents under the fuse box, the green/white wire was completely severed along with some others. I was having a hard time accepting that it was the cluster. Thanks again!
1997 Chrysler Sebring JXi 2.5L start runs wide open VIN: 3C3EL55HXV
Thank you to all of you. I know some of you even responded on a Sunday. I really do appreciate it. It was indeed the manifold. I looked and looked and looked. Finally in the one corner we saw it. It mist have bumped something when we were putting it in the bay... Trouble codes: 24 (tps voltage high.).
2006 Chrysler PT Cruiser 2.4L Key VIN: 3A4FY48B96
Most replies directed me to the shifter linkage and associated mechanical operation. One reply was talking about a small tin plate that's scored from the factory and comes loose, never could find this plate anywhere on the tumbler. One reply mentioned a broken...
2005 Dodge Caravan SXT 3.3L Accumulator pistons & springs VIN: 1D4GP45R25
Thanks to those who took the time to reply. For anyone attempting valve body or range switch replacement this is some necessary information missing from what Mitchell/Shopkey is going to give you for this otherwise simple job: -When you remove the valve body...
2006 Dodge Charger R/T 5.7L Cuts out, Stall VIN: 2B3KA53H56
2006 Dodge Charger R/T 5.7L Hesitation, Cuts out, Stall VIN: 2B3KA53HX6
After lots of testing it was found that this veh would always lose ALL spark to ALL plugs at the same time with no indications of any miss fire on any plug first; then the Auto-shutdown relay would go off milliseconds later , also the key sense and other alar...
2006 Dodge Dakota SLT 4.7L Electronic VIN: 1D7HE42J86
Actually I'm thinking this vehicle is fixed. We determined the problem to be in the PCM. Since it is stilled under the 8/80 warranty we referred the customer to the dealer. I checked with the local dealer the customer took the truck to and the service manager...
1997 Ford F-350 Lariat 7.3L No Start, Stall VIN: 1FTJW36F8V
Thank you all for the assistance. the info was very useful indeed. it had turned out to be the high pressure oil pump.after much time was spent testing and pin pointing. the hpop. also replaced the ipr. just because we were there. Trouble codes: P1211, P0340.
1998 Ford Explorer XL 4.0L reverse VIN: 1FMZU32X3W
Ted from my home state nailed it , removed the servo and sure enough band had slid forward, pulled it back apart realigned works great thanx for all replies
2003 Ford Explorer Eddie Bauer 4.0L Key Pad LOCATION VIN: 1FMZU74EX3
2007 Ford E-450 Super Duty 6.8L instrument cluster ,power windows VIN: 1FDXE45S07
Having the IPC repaired fixed all the problems.Thanks again for the input.
1987 GMC G2500 Vandura 5.7L Stall VIN: 2GDHG31K6H
Well I took all the inputs and applied them but when I took the valve cover off to ck #1 valve position I found green oil. I was trying to see if the balancer had slipped. I loosened the drain plug and no initial anti freeze came out so I drained some more and...
1996 Honda Accord LX 2.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCD7239T
Swapped distributor with one from a like vehicle and not misfiring anymore, so I ordered and installed a genuine honda distributor sub assy and ignitor and its fixed. I wish I knew how to figure it out instead of just guessing. Thank you all for your input, yo... Trouble codes: P0108, P0300, P0301.
2006 Hyundai Sonata GLS 2.4L All Electrical Circuits VIN: 5NPEU46C96
I'm sorry, I thought I had closed this already, What we found was a poor connection at battery ground cable to frame. It looked ok visually but when we unbolted, cleaned and reconnected it the problem went away. Again, I want to thank all that offered help.
2007 Infiniti M35 Sport 3.5L No Start, no crank VIN: JNKAY01E57
customer has had no more trouble with car as of july 8 when he brought the car in. just to intermittent at this point. thanks for the help. If I find anything I will post a fix Trouble codes: P0615, P1815.
2002 Lincoln LS 3.9L abs VIN: 1LNHM87A42
I have been waiting for the owner of this car to return. And also waiting to get paid my pay check for over a week past due. I cut my losses and gave the wheel of my box a work out. So I might never know. But I was ready to scope the wheel sensors.
2005 Mazda 6 i 2.3L Hesitation, Cuts out, Stall VIN: 1YVFP80CX5
Thanks to all that replied. This one almost got me, the coil for #1 cylinder was shorting out and backfeeding throught the computer causing the car to stall. Replaced coil, wires and plugs and car ran flawless.
2010 Mercedes-Benz ML350 Bluetec 4Matic 3.0L MIL Lamp on VIN: 4JGBB2FB1A
Due to the lack of information,wiring diagrams,troubleshooting information,both the customer and I have decided it better that he go and visit the local dealer.The best guess is probably the heater unit in the DEF tank but 3 other responses say something diffe...
2001 Mercury Grand Marquis GS 4.6L No Start VIN: 2MEFM74W71
As suggested I checked the CPS signal at the ECM, it looked good on my wave viewer. I then restarted the car with the fuel pump relay coil grounded with a jumper since the ECM would not ground the relay coil. Again it ran, BUT only for about a minute, and quit...
2003 Pontiac Aztek 3.4L cv axle VIN: 3G7DB03E03
This is not fixed. I do appreciate the time that was taken to respond to this. But to clear some things up Yes 4 brand new tires were installed by me the first time I saw the car, with and alignment. I did not mention that because it was a no brainer. Also Ch...
1999 Saab 9-5 2.3L Balance Chain VIN: YS3ED55E2X
Hello all - most respondents said the chain could be removed with no oil pressure issues and no additional vibration that anyone would notice. Justin thought he had lost some oil pressure after removing the balance chain from his wife's car - but of course, we...
1997 Saturn SW2 1.9L A/c VIN: 1G8ZK8275V
1993 Toyota MR2 Turbo 2.0L No Start VIN: SW20006770
Thank you for reading and all the advise, it ends up is the MAF sensor internal shorting out, reference voltage get pull down, by disconnecting individual sensor, the ref voltage come back up, I check spark and fuel pulse, jump ECM bypass wire everything back...
2004 Toyota Prius 1.5L coil, injector? VIN: JTDKB22U74
ok thanks for all the replies. I did do a compression test and found 150 to 155 across all four cyl. I was only getting a misfire #2 code so I ordered 1 more plug just in case. same misfire code. the biggest issue was trying to get vehicle to act up. it ...
1979 Volkswagen Beetle 1.6L no power
Hi all, this vehicle is fixed, although I am not sure how. The fuel pressure problem was caused by my gauge. I did put the gauge on another vehicle and it was working fine, but I used a different adaptor for the other car and the adaptor I was using for the be...
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