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Prev Professional Automotive Repair Technical Discussions for July 26, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2006 Acura TSX 2.4L 1-2 shift VIN: JH4CL96846
Customer came in complaining about hard shifting from 1st to 2nd gear on automatic tranny. So i took for test drive and it feels like when a motor mount is bad kind of thing, sometimes it feels harder than ussually if u take off normally it feels not that bad ...
2003 BMW 540i 4.4L Poor Idle Quality, Misfire VIN: WBADN63443
We have this BMW in our shop and its turning out to be a nightmare. It has a slight misfire at idle and as you increase the throttle the misfire gets worse and at times the idle starts to surge. Snap throttle under load it has a major misfire. I've cleared the... Trouble codes: 62 (Misfire Several Cylinders), 50 (Misfire Cylinder 1), 51 (Misfire Cylinder 5), 57 (Misfire Cylinder 2), 53 (Misfire Cylinder 8)
2001 Cadillac Seville STS 4.6L MIL Lamp on VIN: 1G6KY54991
Applied scan tool and operated AIR pump while monitoring O2 sensor data. Heard AIR pump turn on and saw Bnk1 Sensor1 O2 drop too 30 mV, other O2 sensors dropped to or around 0 mV. According to diagnostic chart system is working OK as long as B1S1 O2 drops belo... Trouble codes: P1415 (AIR system bank 1), P0420 (cat efficiency bank 1)
2000 Chevrolet Astro 4.3L No Start, Cuts out, Stall, Misfire VIN: 1GNEL19W5Y
Hi group this van came in as a no start but it did start when it came to my shop i checked fuel pressure and it dropped to aprox 42 before it died. I put in a new fuel pump and filter it ran good for a while then died on the road when i disconnect the tps it s...
2000 Chevrolet Astro 4.3L No Start VIN: 1GNDM19W8Y
Vehicle has good fuel, spark, injector pulse. Found wet plugs and replaced. Tested TPS, pass lock, coolant temp sensor, fuel pressure regulator, injectors/poppets, check valve (had a test injection system from a conversion & tried it). Took fuel sample and fou...
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)
2004 Dodge Stratus SE 2.7L Hesitation VIN: 1B3EL36R84
Would like to thank everyone now for any advice with this vehicle. Vehicle came in with two codes, p0201 and p0582. Problem is when you accelerate semi hard and engine approches 3000rpm's and is about to shift from 1st to 2nd gear you get what feels like a rev... Trouble codes: P0201, P0582
2005 Dodge Caravan SXT 3.3L Accumulator pistons & springs VIN: 1D4GP45R25
This customer had a faulty transmission range switch. Replacement requires valve body removal. I rarely get this deep into a transmission, but the service information looked straightforward, so I took the job. However, that service information mentions nothing...
2008 Dodge Ram 5500 Medium Duty 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
2001 Ford F-350 Super Duty Lariat 7.3L Hard Steering VIN: 1FTSW31F51
Replaced upper and lower ball joints. Relpaced ball joints on left, a second time, after finding a binding lower ball joint. After that i changed the power steering pump. Changed steering gear. Steering is stiff going down the road. When turning, it feels like...
2005 Ford F-150 FX4 5.4L surging while driving VIN: 1FTPX14555
truck has a surge between 45-55 mph but not at all times, most commonly when pulling a hill, cylinder contrubtion test isnt really throwing me a steady failure. with 90,00 and never had a tune-up thats the direction im leaning with new coils and plugs but just...
2005 Ford F-250 Super Duty King Ranch 6.0L Bounce steer VIN: 1FTSW21P55
This 4WD F250 has exhausted me, I'm overlooking something and cannot pinpoint. The steering wheel will move anytime the smallest bump is hit in the road. Hit a bigger bump and it feels like it wants to change lanes. I have read other posts about increasing cas...
2007 Ford Edge SEL 3.5L Rattle Noise VIN: 2FMDK49C47
Thank You in advance for the help. This vehicle has a very brief rattle noise in engine on cold start up, after overnight cold soak it will last 1-2 sec. after 4 hours cold soak it may or may not make noise, if so 1/2 - 1 sec. It sounds like timing chain noise...
2007 Ford Explorer XLT 4.0L Throttle body VIN: 1FMEU73E67
Hey guys, This Explorer has a high idle after start up. Especially when a/c is on. Of course the driver has the thing in rev before the starter is done spinning. I know this because he showed me. He says it really clunks into gear and takes off pretty fast. I ...
1999 Honda Accord LX 2.3L Control Head VIN: 1HGCG554XX
Good Day All I Have the aforementioned vehicle here, the AC control head is unresponsive upon cold start up. The blower blows but the vents don't change direction and the indicator lamps do not light up. After a few minutes everything starts to work and the s...
2000 Honda Passport EX 3.2L No Start, Misfire, MIL Lamp on VIN: 4S6DM58W4Y
Ok guys this one is making me pull my hair out and losing my lunch. Currently working on a 2000 honda passport. Customer brought this to us for their 120 k service along with a major tune. We changed all fluids replaced timing belt with a master kit with new t... Trouble codes: P0300 (Random misfire), P1340 (p1311-), P1311 (testing and results)
2005 Honda CR-V LX 2.4L Poor Idle Quality, MIL Lamp on VIN: SHSRD78505
Thanks for any help anyone may have.customer came in and requested tune up and throttle cleaning.replace spark plugs and wiped throttle plate with rag and cleaner-did not spray cleaner into throttle body.customer picked up car and came back next day with cel o... Trouble codes: P0507 (Intake air system leak detected), P2279 (Idle control system higher than expected)
2010 Jaguar XF Premium 5.0L reduced power VIN: SAJWA0GB6A
Hello members, I have this Jaguar XF with a reduced power message and check engine light code P0087- fuel rail pressure low. This came from a used car lot from an auction. Visually the car looks great but it is a salvage title possibly from theft(no body damag... Trouble codes: P0087
2001 Jeep Grand Cherokee Laredo 4.0L 4wd VIN: 1J4GW48S31
Hello All and Thanks in Advance. We are not Transmission/Transfer case specialists so we have run into an issue with this 2001 Grand Cherokee. It does not appear to be going into 4wd Hi. This has a Manual shifter 2wd, 4wd part time, 4wd full time, neutral, and...
2010 Jeep Grand Cherokee Laredo 3.7L No Start VIN: 1J4PR4GK6A
Car was towed in yesterday for no start. There was no draw or clicking from starter so its in the control circuit. I tried to start it and there was a loud clicking under the dash. I decided to print some info from Alldata and tackle it in the morning. Tried s...
2007 Lexus ES350 3.5L brake pedal VIN: JTHBJ46G47
We had this lexus come in last week for the brake pedal going to the floor. After looking at it we decided to replace the master cylinder and flush and bleed the system. This corrected the issue for about a week and a half. The car was just brought back to us ...
1999 Lincoln Town Car Executive 4.6L Lamp on VIN: 1LNHM81W0X
I've been fighting this car for a week now and still am at ground zero. The customer complaint is that the Check Trac light will come on and the coolant temp gauge drops to zero. I've noticed that when the problem occurs there is also a drop in the engine spee...
1991 Nissan D21 2.4L all gears
Customer stated they were upshifting after stopped at stop sign and when shifting into third gear there was nothing. They tried all other gears and nothing in all forward gears and reverse. When I tried it it feels like it is going into gear. There is slight r...
1995 Pontiac Bonneville SE 3.8L traction off light VIN: 1G2HZ52K6S
I have a 95 pontiac sse with 3.8 v6, the mileage is actual, the traction off light is on as well as the hvac control which is electronic has the temp light flashing, pulled codes with tech 2 and have code 38 and code 76, no other codes, I have replaced the ebt...
1997 Pontiac Grand Am GT 3.1L Security (anti theft) VIN: 1G2NW12MXV
Hello all, thanks in advance. Have this grand am that came in a week ago, start stall with security light. I was able to do the relearn fired up just fine, start three or four more times then security tripped again. This time relearn wouldn't work, light flash...
1987 Porsche 924 S 2.5L No Start VIN: WP0AA092XH
Vehicle towed in for a stalling condition which led to a no start. Upon arrival I found there was no fuel pressure and checked voltage and ground at fuel pump. There was no power at the fuel pump. I manually powered the pump to see if it would run and it did. ...
2005 Saab 9-7x Linear 4.2L all VIN: 5S3ET13S15
had to install new engine due to valve damage put new motor in and had a slip in the front end pulled the dif to find the splines were flat for shaft. replaced complete unit and now having slippage in the transfer case like it is engaging and disengaging. has ...
1997 Saturn SW2 1.9L A/c VIN: 1G8ZK8275V
Vehicle a/c does not blow cool air , so we service it but still doest not blow cool air, low side is 30 psi and high side is 100 psi, both compressor and fan comes on and both lines remain warm, any recommendation
2008 Subaru Legacy 2.5i Special Edition 2.5L vent temp VIN: 4S3BL61628
Complaint is AC cools fine at highway speed. Then if comes to stop, AC blows warm. When resuming to highway speed AC works good. Fan works well, blows good flow of air. What next? Thanks for your help Michael
1994 Toyota Camry XLE 3.0L E-solenoid VIN: JT2GK13E1R
Thanks for the help. Vehicle came in with code #P0773 Transmission E-solenoid circuit failure. Owners noted no difference in performance. We road tested the vehicle the transmission shifted perfectly. We current tested (shift solenoid/ lock-up solenoid) circui...
2007 Toyota Tundra SR5 4.7L Cuts out, MIL Lamp on, no throttle VIN: 5TFRT54157
Thanks in advance for any help i get. I have this tundra as soon as u drive it check engine light comes on p2127 and u get part throttle to no throttle at times. As stated above i tested the vpa2 wire with ecm and app plug disconnected i get continuity to grou... Trouble codes: P2127
1979 Volkswagen Beetle 1.6L no power
This car came in running rich, I checked the fuel pressure and it was at 60psi. I looked up the specs and found it should be 28psi. Before replacing the regulator I checked the return lines and found it to be kinked and jammed under the gas tank. I replaced th...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 Audi TT 1.8L oil pressure VIN: TRUWX28N71
Well, I am going to count this one fixed because I do not believe it is an oil pressure problem. I checked the pressures and they were OK, I changed the oil to 10w30 syn. from the 5w30 syn. that I put in prior. (oil pressure numbers rose 5lbs hot at idle which...
2004 Cadillac SRX 4.6L Mechanical VIN: 1GYEE63A74
Labor was 24.3 hrs said to remove Cradle Transfer case and driveshafts then remove engine and trans together. Was hoping to remove engine from top. Looked closely dropped crade and engine together raised cab and chassis removed engine... Almost out and only ...
2007 Cadillac CTS 3.6L Key-Ignition VIN: 1G6DP57707
Thanks for all the help. Pulled all wireing were car was wrecked all looked fine,readjusted shifter linkage. All data on scanner was correct for what gear trans was in.I am sure when car was hit gave PCM good jolt. Replaced PCM and all is fine for now Thanks a...
2000 Chevrolet Impala LS 3.8L Poor Idle Quality, MIL Lamp on VIN: 2G1WH55K4Y
Coil for cylinders 6 and 3 was replaced. It fired but not good enough and the new intake fixed the high pressure in the coolant. thanks for the replies and keep wrenchin. Trouble codes: P0306 (Cyl. 6 misfire).
2003 Chevrolet Silverado 1500 5.3L compressor VIN: 2GCEK19T33
Thanks for the help. After further research into the wiring found the front harness had been replaced. This truck should have two sensor and the one replaced was for computer. Found ac temp wires omitted. Ran new wires pigtail and temp sensor. Ac works great a...
2005 Chrysler 300 (Car) Limited 3.5L Sunroof VIN: 2C3JA53G65
Thanks guys for the info, I am scheduling the local glass shop to come by and remove the windshield, so I do not mess up the headliner trying to work around it.
2002 Dodge Grand Caravan EX 3.3L out put sensor VIN: 2B4GP44312
thanks for all the help i had though it was in the wiring and after reading some more help request there was one about the connector its self i had overlayed the wires about 2 inches back from the connector i uses an ohm meter thinking the connector was good b...
1993 Ford Mustang LX 5.0L No Start VIN: 1FACP44E7P
2000 Ford Explorer XLS 4.0L No Start VIN: 1FMZU62X3Y
Thanks for all the help. Seems the connector is the problem, now have to try and track one down.
2001 Ford F-150 Lariat 5.4L Pats VIN: 1FTRX17L61
Thanks to all applied. All were very excellent answers and pretty much said the same things. We fixed this truck! Vehicle started and ran great after programming the new PCM with Ford's "as bulit" tear tag numbers. Once the PCM was loaded and calibration file ...
2005 Ford F-150 FX4 5.4L Brakes VIN: 1FTPX14545
Thanks for all the replies. Some said to bleed brakes again. We did no change until we used a brake flush machine to bleed brakes. Worked great. Customer is on the road again. Thanks al
2006 Ford Taurus SEL 3.0L power steering pump VIN: 1FAFP56U76
Hello all, this Taurus is finally out of my hair. After walking away for a day I went back to the basics. The noise was coming from the belt tensioner, this is where it gets strange, another shop replaced this with a gates part to try to solve the problem, I r...
2008 Ford F-150 XL 4.6L Light on all the time VIN: 1FTRX12W18
Thanks for all the help from everyone. I ended up going with a used RCM (yes I know and its not my normal practice) but with the price of a new one and not being 100% sure if there was anything else wrong in the system that could have caused it to short out (m...
2002 GMC Sierra 2500 6.0L Unknown
special tanks to Denny for explanation and to test to run. Also like to thank you Wilfrido,Perly and Ken wasn't able to run the test Denny suggested, although I wanted to try it. Did drop the pan and nothing was found concerning GPS sent Another re-man trams. ...
2008 GMC Sierra 2500 HD WT 6.0L SDM Communication VIN: 1GTHK29K98
Handed this one off to customer and advised him to go to dealership...500 miles away. Last effort was checking continuity on comm bus, isolating all but SDM module. Even with every module off bus, still no comm. I believe vehicle may have been at another sho...
2011 Hyundai Santa Fe SE 3.5L Mechanical VIN: 5XYZHDAG4B
It is under the intake and there is no easy way around it. It will Disguise itself as a rear main leak, because it just pours out the bell housing area. Thanks to all who replied.
1992 Jaguar XJ6 4.0L Limp mode VIN: SAJFY1748N
Found The TPS sensor to be soaked in oil. Found signals to be dropping out, repalced the sensor and found everything working normally now. Thanks everyone
2003 Mazda Tribute LX 3.0L Misfire VIN: 4F2CZ94153
Went out & moved the wiring so I could get the coil connector that was on 4 to reach cylinder 6 & then put 6 on 4. Eureka, the miss is gone & the little tribute runs great. Sometimes we miss the most simple things but I swear if you look at the routing of the ... Trouble codes: P0304 (4 cylinder missfire), P0306 (6 cylinder missfire).
2003 Mazda 6 i 2.3L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1YVFP80C63
Well we fixed this. If any one gets this kind of problem, call the dealer and run the vin to see if the re flash has been done for the u codes if so clear them and only address the p codes. We had this nailed when we tested for the p2101 code. Bad throttle bod... Trouble codes: P2101 (Tac motor circuit range/performance), U0073, U0100.
1993 Mercedes-Benz 300SE (Car) 3.2L Poor Idle Quality, Stall VIN: WDBGA32E9P
Thanks for all the help. The customer has not decided what to do but from all the replays I am sure the trouble if the throttle actuator. No more bba! i will post the fix when he gives me the go ahead. Thanks again for all the help!!! mickey Trouble codes: 048 (Potentiometer m16/1r1).
2003 Mercedes-Benz C240 2.6L No Start VIN: WDBRF61J03
well this i'll call fixed. as all 5 of my replies suggested we replaced both the electric and siphon pumps on this car started it up. with pump caps off and could see level in left side go down as level in right side went up. apparently on this design return ...
2004 Mitsubishi Outlander LS 2.4L blower motor VIN: JA4LZ31FX4
All replies were based around stuck relays and the ghost voltage necessary to keep said relays applied. Fuse 5 brings switched ignition to not only the blower relay but, between the relay and the fuse, branches off and feeds the a/c control head, the recirc mo...
1998 Pontiac Sunfire GT 2.2L Hesitation, Misfire VIN: 4G2JB3247W
2001 Saturn L200 2.2L dash gauges,security light,daytime lights VIN: 1G8JU52F21
Well, the general opinion is that the BCM need to be replaced. The part and the dealer reflash is too expensive for the customer. I can buy a used one at a salvage yard for $40 but I am afraid to try that. So, for now at least, it is unrepaired. Thanks to all ...
2004 Toyota 4Runner Sport 4.7L Transercase shift actuator removal VIN: JTEBT14R84
According to all the feedback, It was confirmed transfer case must be disassembles to remove the transfer case shift control actuator.
2010 Volkswagen Jetta S 2.5L airbags VIN: 3VWJZ7AJ2A
OK, thank you for all the replies. This car is not yet fixed, we took it to the dealer and they said that the airbag module was coded incorrectly and the pods module under passenger seat is bad. I have checked and double checked the coding using the part numbe...
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