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Prev Professional Automotive Repair Technical Discussions for June 30, 2011
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Help Request Answers
2001 Audi A4 1.8L overheat/coolant loss VIN: WAUAC68D31
Blown coolant hose while driving at highway speed lead to overheat and cranks no start, low compression on cylinders 2 and 3. Out clunky bore scope is not obediant enough to view cylinder walls, but no apparent holes in the affected pistons. We may own car (o...
1997 Cadillac Seville STS 4.6L Thermostat VIN: 1G6KY5294V
customer wants thermostat replaced. i do not know location of stat, does not appear to be under upper rad hose, suspect it to be under lower hose and would appreciate confirmation.
2004 Cadillac Escalade 6.0L hard steering VIN: 1GYEK63N44
The steering on this Escalade gets hard only when turning steering wheel to left side while parking. we flushed out all steering fluid several times, went through a couple of quarts of trans fluid and flush to check if any valves were sticking in hydraboost or...
2008 Cadillac Escalade ESV 6.2L Hesitation, Stall, MIL Lamp on VIN: 1GYFK66818
thanks in advance. This one is really intermittent-difficult to reproduce. Can occur in 60 miles or not for [...]. MIL comes on & DIC message for "reduced power", "Stability system disabled" looses power- NO accleration/ idle speed only. (DANGEROUS!! can't ... Trouble codes: P2135 (TPS correlation incorrect), P2119 (Closed throttle performance fault)
1999 Chevrolet Tahoe 5.7L Poor Idle Quality, Misfire VIN: 1GENK13R2X
Hello all, This tahoe is not quite making sense and I'm looking for a conformation of my thoughts. 1999 Tahoe with a 5.7. Came into my shop for running bad and back firing. Owner had already been there and replaced the coil and broke the distributor loose so t...
2005 Chevrolet Malibu LS 3.5L Exhaust Valves VIN: 1G1ZT52875
Reinstall heads and in the shop it sounded great. On the test drive the engine started to clatter like it had lost oil pressure with no loss of performance. Installed pressure guage for oil and we have great prressure. Removed valve covers to check for free pl...
2008 Chevrolet Cobalt LS 2.2L No Start VIN: 1G1AK58F58
found the only repair for fuel pump is insert in tank or buy whole tank 1300.00 bought pump conector was melted dealer could not find one very odd small conector. made my own conector with gm pins and soldered to pump for insurance. tried to start car computer...
1998 Ford F-150 4.6L Gem
Need help have a truck that the battery dies every few days. had a battery draw of 160mA then pull fuse 15 for the GEM and amps go down to nothing. from what i have read i was thinking the gem wasn't going into its sleep mode after 45 MIN. When i pulled the fu...
2003 Ford Ranger XL 3.0L Fogging VIN: 1FTYR14V83
Hello and thanks in advance. We have thrown the kitchen sink at this a/c problem and the outcome is always the same. Customer complaint is fogging from the vents when the a/c is on.. On initial test system was low about 3oz. Evac and recharge to proper freon l...
2004 Ford F-250 Super Duty XL 6.0L poor power VIN: 1FTNX21P04
The truck has decreased power on acceleration and is putting white smoke out the exhaust on acceleration . There is a black/brown residue inside the coolant jug and was half a gallon low. The egr valve has been replaced by another shop. Have gotten feedback th...
2004 Ford F-250 Super Duty XLT 6.0L EGR Cooler VIN: 1FTNX20P94
In our shop we have this Ford Diesel which has oil intrusion in the cooling system. At first we replaced the EGR Cooler at the request of the customer. After replacement the vehicle was back within 3 days with the same condition returning. Going through the co...
2006 Ford F-150 XLT 5.4L MIL Lamp on VIN: 1FTPX145X6
Here is what i have, the truck has to be hot, under a load, and pushing on the gas half throttle. Then letting off, you hear a rattle, as if the timing goes out, and a preignition rattle starts up, (sounds like it is a diesel).wrist pin rattle? about 10-15 sec...
2006 Ford E-250 5.4L compressor VIN: 1FBNE31L56
Truck does not cool at idle too well. 65 degrees. Driving will bring the outlet temp as low as 38 degrees. High side pressure fluctuates wildly, which these compressors do. Tried everything we can think of. Anybody out there have a clue?
2007 Ford Escape XLS 2.3L drive belt VIN: 1FMCU02Z67
hello all,drive belt vibrates and cherps just off idle only with ac on,belt tentioner seems in working order.belt is not new but in good condition,above 1000 rpm all is quiet.have not replaced anything working well as far as cooling goes,thanks for any ...
2008 Ford F-150 XLT 5.4L Vct VIN: 1FTPX14578
Truck brought here,scan test for codes,several misfire codes along w/p0012 ans p0022,found converters both rattling,dropped exhaust and drove,ran fine,empty converters,road test o.k.,customer picked up and drove for about 20 min,same problem,road test with sca...
2009 Ford Mustang GT 4.6L Ride VIN: 1ZVHT82H99
This customer commutes 25 miles a day to work, this 09 GT came with a very stiff suspension package. She would like a softer ride. Anyone have experience with this?
1985 GMC C1500 Sierra Classic 5.0L compressor shaft seal VIN: 1GTDC14H2F
I'am installing a new compressor shaft seal but I need a special tool to install the seal the compressor type is a R4 I need to know from who I can get the tool from.
2005 GMC Sierra 1500 4.3L alternator VIN: 1GTEC14X55
Truck originally came in with customer complaining of intermittent low voltage on gauge and a chrging system error displayed on his info display, alternator was replaced at his request and battery was tested. One week later truck comes back with battery light ...
2007 GMC Yukon XL 1500 Denali 6.2L Fuel Gauge VIN: 1GKFK66897
The fuel gauge read empty. Checked the circuits by plugging another module into the harness raise the float and the gauge goes up, lower the float and it goes down. I got a new module and installed. When the tank is now full the gauge only reads a little over ...
2006 Honda Odyssey EX 3.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 5FNRL3864B
Customer came in for check engine light on- found multiple cylinder misfire codes- the car only will act up usually on the first start up of the day and can last for up to 10 minutes- we know that the car will misfire on every cylinder bank 2- cylinders 4-5-6 ...
2002 Hyundai Santa Fe 2.4L brakes VIN: KM8SB73D62
Vehicle is back with right rear brake rotor hot and seizing on, suspect problem other than previously thought hand brake shoes coming on or staying on. Any problem known with master cylinders or brake hose problems on these models affecting one wheel in partic...
2003 Hyundai Sonata GLS 2.7L Long crank VIN: KMHWF35H43
this car has extended crank times most of the time, there are no codes or engine light & once it starts all is ok. has anyone had this problem?
2004 Hyundai XG350 3.5L Poor Idle Quality, Hesitation, MIL Lamp on VIN: KMHFU45E94
hey all, Got this hyundai that's giving me trouble. Fuel trims are at -20, o2 senors are switching and seam to be reading accurately maf voltage is 1.5v at idle. According to my modus and Mitchell @ idle maf should read .5v its exactly 1v off. sensor had alrea... Trouble codes: P0172, P0175
1999 Jeep Grand Cherokee Limited 4.7L compressor VIN: 1J4GW58N6X
Hey guys got a weird one here.the compressor would not run.checked voltages at relay good powers,but no ground to pull in the relay.the ground comes from the pcm,so i commanded on with my modis and it would cycle.i voltage dropped all powers and grounds and th...
2002 Jeep Liberty Sport 3.7L axle? VIN: 1J4GL48K62
Jeep has a vibration that seems to be coming from the RF on decel mostly noticable around 20-25 mph when it shakes the whole vehicle. I replaced the hub assy. due to noise. Noise is gone but vibration is still there. I am thinking axle but was wondering if any...
2007 Land Rover Range Rover Supercharged 4.2L No Start, Cuts out, Stall VIN: SALMF13477
Hey, we have had problems with a start and stall. Truck came in after stalling on highway, towed in and started and ran for 2 hours, test drove and died as we entered the shop. Retrieved codes for all 8 coils open circuit, erased codes and now its been a long ... Trouble codes: U0151 (Restraints module lost communication)
2001 Lexus RX300 3.0L abs VIN: JTJHF10U91
I have a 01 lexus rx300 that intermittently applies the brakes. Most of the time we can duplicate it by stopping and then accelerating. Sometimes the front brakes apply some time the rear apply. No codes stored in abs system. All tires have the same tread. We ...
2004 Lincoln Navigator 5.4L Air Suspension VIN: 5LMFU28R74
The ride height is fine, always pumps back up from kneeling height. It passes the Pneumatic Test, Trim Height Test and Self Test. No continuous codes stored. When the truck drops to kneeling height, sometimes both front and rear drop level, sometimes the fron...
2002 Mazda Miata LS 1.8L No Start VIN: JM1NB35362
HI FOLKS , This one has a cam sensor code and won't start, installed and still has problem. Checked the timing belt and all is good, marks in line. Can any thing else cause this code other than a cam sensor? Like igniter or even the crank sensor, although it a... Trouble codes: P0340 (Cam sensor)
2004 Mazda 6 S 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1YVHPB1D34
Hello all, looking for help on this 2004 Mazda6 V6 5speed sedan. Was lucky to have another good running car to reference - still not much luck. Had car for a while now. Should have posted something sooner. After warm up (10-15min) Car has bad hesitation which ... Trouble codes: P0172 (System too rich Bank 1), P0443 (Evap purge fault), P0011 (Intake cam too advanced did not return), P0022 (Intake cam too retarded did not return), U0073 (Can Bus Communication off intermittent)
1995 Mercedes-Benz S500 5.0L Aux Fans VIN: WDBGA51E5S
Goodmorning all. This car came in with a customer concern of running too hot in slow traffic with a/c on. First check do aux fans work. No. Check all related fuses ok. Do the fans work if power applied directly to them, yes. Test control relay power at pin 30 ...
1995 Mercedes-Benz C280 2.8L Electronic VIN: WBA46JGUO4
Good morning guys.. hello all tech.mb tech.please help..I am working on this c280 here with trans problem not shifting.. First thing in the morning it was shifting fine ,after driving for about 10 to 15 minutes then it is not shifting to second or third gear ....
2000 Mercedes-Benz ML320 3.2L sunroof VIN: 4JGAB54E2Y
From a prior audio installation, the drain hose down the right A pillar was disconnected. Dash partially disassembled, and i can't locate the plastic elbow where the local dlr says it is connected. the hose slips about 7" into the dash. to further complicate m...
2004 Mercedes-Benz E320 4Matic 3.2L Compressor VIN: WDBUH82J84
We change out compressor and a/c off is on control panel how do we reset
2007 Mercedes-Benz E550 5.5L srs light on VIN: WDBUF72X07
Mercedes Techs: This Benz was sent from body shop, has code 9A14 (Weight Sensing System is incorrectly adjusted). I can find no information for adjustment of WSS sensors. I unplugged each sensor and rechecked and set no other codes and when I clear this code i...
1995 Mercury Sable GS 3.8L Poor Idle Quality, Cuts out VIN: 1MELM504XS
This one is driving us crazy. Car loses spark, runs terrible especially hot, stalls out. We have replaced the distributor, module, coolant sensor, coil. We also replaced the spark plugs because vehicle owner had installed wrong ones. Cleaned out mass air flow ... Trouble codes: 116 (ect out of range), 211 (profile ignition pickup circuit failure), 213 (spark output circuit open)
2003 Mini Cooper 1.6L Steering VIN: WMWRC334X3
hey everyone, just replaced a power steering pump assembly and fan. power steering fan does not turn on at all except when i control it with my scan tool. radiator fan cycles on/off at engine normal temps about 100C, turn on ac and ps fan still does not operat...
2005 Mini Cooper S 1.6L No Start VIN: WMWRE33525
I am about to replace the fuel pump assy for the third time on this Mini Cooper S. All pumps are from a Mini dealer. The car has never quit while running. Owner will park car and come out in the morning to a no start. Blows fuel pump fuse and pump is locked up...
2005 Nissan Pathfinder LE 4.0L trailer plug VIN: 5N1AR18W45
vehicle came in with factory trailer harness (4pin) with the right side signal/stoplamp inop at trailer pin did some quick checks looks like the wiring comes straight from BCM for the turn stop lights.. looks like the bcm burns/blows a circuit when there is a ...
1999 Other European arnage 4.4L suspension lt on VIN: SCBLB51E7X
Hi Just thought we would ask if there are any Bentley techs out there . What are your thoughts on these codes ? The suspension lt. is interment . We had the dealer scan and clear the codes and these 2 came back arc223 and arc243. There was mention of a possi...
2001 Pontiac Montana 3.4L No Start VIN: 1GMDX03E31
Hello Everyone, Have a real difficult one here. The PCM sends a power signal to the fuel pump relay to energize the pump, that signal is missing from the PCM. I can jump power to that terminal on the relay and the van will run forever. That confirms that all t... Trouble codes: P0230
2007 Saturn Aura XR 3.6L Electronic Stability System VIN: 1G8ZV57727
Hello, the driver information system reads ESC OFF. Cruise control inop. Has code C0161(brake lamp position switch) & U2125(Class 2 loss of communication). After replacing brake position switch all was good for a few days, now returned with ESC OFF on dash. An...
2006 Subaru Impreza 2.5i 2.5L cylinder head gasket
in past two years i did five of this jobs , but all my jobs are done on older ej25 engines so no big problem there . but this is vvl sistem on camshafts and i never done cylinder head job on vvl cams. some people say that i need to buy for this job ...
1998 Toyota Camry LE 2.2L start in second shift to third no o/d VIN: JT2BG22K4Q
is this a failsafe mode for this trans or is there further problems? possibly a mechanical failure.
2000 Volkswagen Beetle GL 2.0L fuse5 and 9 blow together VIN: 3VWCA21C1Y
thanks to all in advance. this beetle is my nightmare. fuse 5 and 9 are shorted. the two blow at same time. one is for abs. other is for comfort system. customer complained a/c inop and abs and brake light illuminated. customer had installed bigger fuses. i in...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2004 BMW 325i 2.5L Aux Cooling Fan VIN: WBAEV33484
The customer decided to take it since it was an intermittent problem and the AC was working fine.(thats all that mattered to her)I will get it back when it comes in for Inspection 2, and I'll take a look at it again, hopefully my GT-2 will be working by then. ...
2005 BMW 645Ci 4.4L heater valve VIN: WBAEK73465
I went with an educated guess, replaced the control panel (dealer had one in stock) & all is well. Only got one reply, from an experienced BMW tech who said he hadn't seen this problem but agreed the panel was possible.
1991 Chevrolet Camaro Z28 5.0L Hesitation, MIL Lamp on VIN: 1G1FP33F4M
1994 Chevrolet Corvette 5.7L No Start VIN: 1G1YY22P1R
As suggested I rechecked powers & grounds by using a headlamp load test. All passed. I contacted a tech with a lab scope & tech 1, he scanned it & we tested circuts with lab scope. I would crank, start, run 5 seconds and the injectors would turn off, engine di... Trouble codes: 16 (low resolution pulse failure), 42 (EST grounded), 41 (EST open).
1995 Chevrolet Blazer 4.3L 2-3 Shift VIN: 1GNDT13W0S
Turned out to be the input sprag, just like Mike from BC was saying. First, confirmed line pressure rise prior to shift at the same time PCS amp readings dropped. When the shift would flare out the pressure immediately dropped to idle pressure of 120 psi. Tor...
2001 Chevrolet Suburban 1500 5.3L overheat
Thanks for all the replies verifying what I thought was the radiator. I took the radiator out, and ran water through it. The top, bottom, and sides were ice cold, but the middle was warm (ambient temp). I did the same thing with the new radiator, and the en...
2004 Chevrolet Astro 4.3L Excessive Emissions, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GCDM19X14
Thanks for all the info.I replaced the coolant sensor again. the first was a napa sensor, and it did not work properly. i did see that some people had problems with the napa sensors. installed another ect sensor from oreillys, and the temp did not bounce aroun... Trouble codes: P0118.
2006 Chrysler PT Cruiser 2.4L Engine VIN: 3A4FY48B16
I took some of the advice and killed each cylinder with the scanner. I noticed a very slight difference on cylinder 2. On a whim, I decided to pull the cylinder 2 plug wire. The noise stopped completely. After pulling piston 2 for inspection, we found that the...
1999 Dodge Ram 1500 Truck 5.2L engine VIN: 1B7HC13Y1X
just want to say thanks for all the great advise. it was the lower gasket that was causing the whistle. the intake set i ordered the first time included the lower gasket but the tech did not install it the first time when the intake gaskets were replaced. oh w...
2000 Ford F-250 Super Duty Lariat 7.3L brakes VIN: 1FTNW21F4Y
I replaced the ball joints on the RH side since they had some slack and the problem is solved! There was a small amount of slack, but I guess it was enough to cause problems. I didnt drive the vehicle before the brake work started since it was very obvious tha...
2005 Ford Five Hundred SE 3.0L No Start VIN: 1FAFP28115
thanks for all the help. this vehicle had a remote start the wire ran by the air cleaner and when i moved it the wire going through the firewall shorted against the metal wire was frayed almost all the way through. thanks again.
2005 Ford Freestyle SE 3.0L Cooling VIN: 1FMZK02145
thanks to all that helped. i replaced the compressor and dryer. all pressures are where they should be and it is cooling vary well.
2008 Honda Civic EX 1.8L Unknown VIN: 3WR54GT287
The customer could not be with out his car so wouldn't leave it. But after make some calls and doing some reaserch I think maybe the A/C clutch relay is sticking not allowing the compressor to turn off witch I beleave is causeing Evap to freeze up. Hopeing cus...
2001 Kia Rio 1.5L Poor Idle Quality, MIL Lamp on VIN: KNADC12331
Compression was 185-190psi on all 4 cylinders, Vacuum at idle was 20"hg, exhaust back pressure was .05psi at idle and 2.5psi at 2500rpm, engine appears to move air just fine. The only verifiable problem I can find is the MAF output voltages, but to have 3 in a... Trouble codes: P1166 (Lambda Bank Control Limit).
1998 Land Rover Discovery LE 4.0L No Start, Poor Idle Quality, Hesitation, Stall VIN: SALJY1247W
Many great replies, the fuel filling is a fix. The "hot" start is going to be something electronic & will just have to be found. I will update when I find the fix. Thanks Dale Trouble codes: P00, 158.
2003 Lexus ES300 3.0L Valve seal or rings VIN: JTHBF30G23
Thanks every one for spending time to give me advise, I replace the rear valve cover & PCV that fixed the problem, thank you, thank you all very much.
2005 Lincoln Navigator 5.4L Torque Convertor VIN: 5LMFU28545
Hi and thanks for the help, we have sent this trans in for a rebuild. There is a pump upgrade and some other issues with the T/Q but the customer was also saying it would slip. So of it goes for a rebuild. Thanks again George
2006 Mazda 3 i 2.0L No Start, Cuts out VIN: JM1BK14366
Thanks for the help BUt the customer did not wish to further test. They were happy the car ran and took it as it was. IF it malfunctions again I will post any further findings.
2005 Mercedes-Benz E500 4Matic 5.0L Ride Control VIN: WDBUF83J85
Thanks a lot to those who took the time to steer me in the right direction. The WSS right front seat needed to be calibrated after the accident. To get it done free I come up with the idea of contacting the Autologic rep for a demo of the scanner which I know ...
2003 Toyota Prius 1.5L No Start, Stall, MIL Lamp on VIN: JT2BK18UX3
Thank you to everyone who replied. The HV battery was indeed too low to crank the engine, and we had no means to charge it. Called the local dealer and asked about the possibility of having it recharged (which involves a Toyota-specific charger of which there... Trouble codes: P3000, P3190, P3191.
2006 Volkswagen Jetta TDI 1.9L Stall VIN: 3VWDT31K56
It was very intermittent but we definitely found something and are calling it a fix. After reading reply from Graeme,I tried a wiggle test again.I was able to make it stall when pulling on harness under air filter.A purple wire for crank sensor had broken i...
1998 Volvo V70 GLT 2.4L Starting VIN: YVLW567XW2
first i would like to thank bruce for tking time to send me awiring digram of the switch harness with that volvo is up running thanks again bruce jimmy
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