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Prev Professional Automotive Repair Technical Discussions for May 18, 2015
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Open Help Requests for All Makes and Models
Help Request Answers
2003 Audi A4 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WAULC68E53
as stated in repair history, vehicle came in previously a few months ago for a #4 misfire, coil good, outputting strong spark (on all 4 as a matter of fact), replaced ignition coil harness due to some dry rot of the harness but no change. fast forward to now, ... Trouble codes: P0301
2007 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E77
Did search all dtb for related emission but no found. Did check all connections for emission system- ok. Did perform leak down test with smoke test when applied valves close (purge system), no found. Checked all ground for tighten- ok. What may cause check eng... Trouble codes: P0444, P0033 (Air recirculationvalve for turbocharger n249 electrical fault), P0243 (Charge pressure control solenoid valve n75 open circuit/ short to ground), P2294 (Fuel pressure regulating valve open circuit), P2400 (Leakage diagnosis pump tank breather system electrical fault/ open circuit)
2008 BMW 550i 4.8L timing VIN: WBANW53518
Hi guys, I have this 550i that I did valve seals. Now has a code 2a8a cam-crank correlation. I removed the solenoids, clean them and tested them with a power probe. The engine is clean, had extra oil changes along the 85k miles. Then removed the valve covers, ...
1967 Buick Skylark 4.9L valves lifters VIN: 444677H275
Hello all, This old Buick is driving us nuts. The customer that owns the car drove it all last summer with no problems other than a lifter tick. Over the winter he replaced all the lifters, timing chain & sprockets, points & condenser. Since he put all these ...
1997 Buick LeSabre Custom 3.8L Collapse VIN: 1G4HP52K4V
The fuel tank in this Buick will collapse during long drives. We have tried to duplicate the problem with no luck. We have even applied a AC vacuum pump to the tank with a gauge to see if it would collapse. We only managed 8" of vacuum. The problem has happene...
2004 Chevrolet Impala 3.4L No Start VIN: 2G1WF52E94
Car came in on the hook with a no start condition. Cranks good. I have good spark and good fuel pressure. I have no injector pulse. I have no cam position sensor signal. I have RPM signal. I am lost right now.
2004 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNES16S24
Hello and thanks for viewing this help request. This vehicle is a no start. Customer removed engine from truck and sent it to machine shop for rebuild. He reinstalled rebuilt engine and he states it started up and ran fine for about 30 minutes and then the eng... Trouble codes: P0122 (Tp or app sensor 1 circuit low), P0223 (Tp or app sensor 2 circuit high), P0621 (Generator lamp l circuit problem)
2007 Dodge Caliber SXT 2.0L Poor Idle Quality, Hesitation, MIL Lamp on, Throttle Body Cont. VIN: 1B3HB48BX7
Hello everyone. This car belongs to my ex wife lol. She had her battery replaced on Saturday and drove it to work the following morning. She called later in the day, stating that the car wouldn't stay running. She told me that the lamp for the Throttle Body Co... Trouble codes: P2110 (p2112-), P2112 (p2118-), P2118 (p2119-), P2119
1997 Ford E-250 Econoline 5.4L vss VIN: 1FTGE24M1V
Ford techs, have a good one here. Transmission does not shift, has an E40D. There is no VSS or OSS reading on scan tool, but the speedometer works fine. This came over from a transmission shop, they put a new Ford VSS in it. I scoped the sensor and found a goo...
2005 Ford Escape Limited 3.0L Poor Idle Quality
Vehicle came in running on three cylinders. Diagnosed and replaced all 6 ignition coils and pcm(bad coil drivers). Also diagnosed and replaced front catalytic converter(plugged) and downstream converter(plugged). Vehicle now runs decently however there is stil...
2008 Ford E-350 Super Duty 6.0L Cylinder 3 low compression VIN: 1FTSE34P28
We performed a leak down test and and with 100 psi going in we are leaking 3 psi, so that is a good test. We pulled the valve cover and oil rail and rolled over the engine and the push rods and rockers are moving. So all we can think is the piston rod is bent ...
2002 GMC Envoy SLT 4.2L Hesitation, Cuts out VIN: 1GKDF13582
The truck came in some times when you accel. It will hold back holding it there it will take of like a rockett. Coustmer said with cruse set at 70 it runs good. This may not have nuthing but he said it started after getting gas i chaneg the fuel filter & took ...
2009 GMC Sierra 2500 HD SLE 6.0L Safety VIN: 1GDHC44K19
I recently had a 2009 Sierra 2500 come in with the air bag light on. Another shop had replaced the Sensing Diagnostic Module, due to excessive corrosion from the floor mat, with a used module. They installed the wrong number module and it had 6 codes for optio...
1998 Honda CR-V EX 2.0L no reverse, moving in neutral VIN: JHLRD186XW
Hello, we have a 98 CRV RT4WD (AWD) with a rebuilt transmission that we did. We overhauled it aswell as putting in new clutches and steels. After installation, it seems as if it is always in a forward gear, it goes forward in neutral. Reverse does nothing. Whe...
2007 Infiniti G35 3.5L Timing Chain VIN: JNKCV54EX7
Hi to all here we go again!!! I would like to everybody in advance for taking the time to read and help on this post. I have a 07 infiniti g35 that originally came in for engine light on codes P0011 B1 CAM POSITION TIMING SYSTEM PERFORMANCE, P0021 B2 CAM POSIT...
1991 Mercedes-Benz 300D 2.5 2.5L Stall, Hard to start VIN: WDBEB28E9M
So the customer wanted me to replace the o-rings and copper washers for the delivery valve assembly. Simple, right? Wrong! Now the car clatters very loudly, is hard to start and sometimes stalls when I let off the gas. From what I read online, it seems I must ...
2007 Mini Cooper 1.6L battery draw VIN: WMWRF33577
Hello, This Mini has become quite troublesome. There is a parasitic draw of 1.2 amps that requires removal of two fuses to bring it down to .02 Fuse 21 for "Instrument Cluster Control Module" and Fuse 24 for several systems: Siren w/tilt alarm sensor, rear lef...
2009 Toyota Venza 3.5L gate VIN: 4T3ZK11A79
This vehicle came in because the power lift gate won't open with the key fob. It will open manually and it will open and close with the button on the dash. All other functions of the key fob work. I tried both key fobs and neither one will open the power lift ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 323Ci 2.5L abs VIN: WBABM334XY
Right now, after cleaning abs sensors. Three weeks and no light, crossing my finger.
2001 BMW X5 4.4i 4.4L Starter VIN: WBAFB33571
Thanks for all the replies. I checked power from the ews and found no power. Replaced ews and perform and alignment. Started right up. Thanks again for the replies.
2005 Cadillac CTS 3.6L abs module VIN: 1G6DP56755
The fix was to replace the module thanks to the three replies I received
1998 Chevrolet C1500 Cheyenne 5.7L misfire p0301 VIN: 1GCEC19RXW
Since the initial testing didn't allow us to come to a reasonable conclusion, we went back and restarted our diagnosis. The running compression and a second leak-down test (with sound coming from the oil filler neck this time) confirmed that it was a cylinde...
2012 Chevrolet Equinox LT 2.4L Exhaust Actuator VIN: 2GNFLEEK9C
Thank you everyone that replied. Most suggested that it was under a factory warranty due to issues with the timing chains and actuators. The customer opted to call our local dealer and is going to take it there for repairs. I suspected that the actuator had fa...
1995 Dodge Grand Caravan SE 3.3L Poor Idle Quality, Cuts out, Stall VIN: 1B4GH44R9S
I'm closing this out. The vehicle is going to be sold. I did cycle the key 3 times and got a code for undervoltage (battery went dead) and code 55 for end of messages. Thanks for everybodies help. I did have 9 volts at the cam and crank sensor. I was leaning t...
2007 Dodge Ram 1500 ST 5.7L Surge, Stall VIN: 1D7HA16267
Took truck to dealer and flashed with new software. They said that there was 2 codes (that I didn't see) One was P2701 and B2213 Going to give back to customer again and will keep you updated if this returns. Thank you to all that replied. It was greatly ...
1994 Ford Bronco Eddie Bauer 5.8L rear window motor VIN: 1FMEU15H4R
Thanks to all for the replies, those that are real familiar with theses gate gave very good diagnostic info that would have saved me some time had I not already condemned the motor. I tested motor unplugged & isolated from circuit. This guy lives right on the ...
2011 Ford F-350 Super Duty King Ranch 6.2L Cuts out VIN: 1FT8W3C60B
I removed the new spark plugs that were replaced and found 1 of them was melted. The customer brought a new plug, 8 coils, and wires. Replaced cats and problem was resolved. Trouble codes: P0316.
2003 Mercedes-Benz ML500 5.0L abs module VIN: 4JGAB75E63
We have done a lot of testing. Found the can lines to be good, all powers and grounds are passing. Sent the module back to reman shop and now they say they cannot fix it. Going to get used on one open up, if no corrosion going to install and will update.
2010 Mercedes-Benz ML350 Bluetec 4Matic 3.0L MIL Lamp on VIN: 4JGBB2FB5A
Lars hit it on the head. The well for the heater was bone dry. I opened it, filled it with fluid, filled the tank to the top and put a new pump (under warranty) and the system pressure is reading 4-5000 HPA. Thanks for the help and suggestions everyone. Trouble codes: 20E82.
2010 Mitsubishi Lancer ES 2.0L MIL Lamp on VIN: JA32U2FUXA
First thanks to all who took time to answer.The fix was to replace pcm...after much testing of the powere and grouinds and how it looked at the key on volts to b1s1 we found too much volts being applied to afr sensor at start up. This would not happen at all t... Trouble codes: P0132, P0328.
2005 Nissan Pathfinder LE 4.0L fuel pump access VIN: 5N1AR18W75
Thanks for all the quick replies. There is no access hole. I had to drop the tank about 6 inches to reach the fuel line that was not connected. I assume it was never fully connected at the factory. I clicked it in solid and that was the fix.
2011 Nissan Altima 2.5L Brake system VIN: 1N4AL2AP1B
Thanks to all that responded. Once I was convinced I did not need a scan tool to bleed the brakes I followed Nissan's procedure of disconnecting the ABS module and pumping the pedal 10+ times before opening each bleeder. Using a vacuum bleeder I was able to pu...
2007 Toyota FJ Cruiser 4.0L 4x4 ECU VIN: JTEBU11F27
Sorry guys, no fix on this one. Still waiting to hear back from custimer.
2004 Volvo S60 2.5T AWD 2.5L Poor Idle Quality, MIL Lamp on VIN: YV1RH59H94
The vehicle decided to stop acting up, so I checked MAF readings, which were normal. I replaced the throttle body with a used unit. I cleaned the used unit and added stabilant to the throttle connections and ECM connections. I test drove the vehicle for a full... Trouble codes: P2111.
2006 Volvo XC90 V8 Ocean Race 4.4L Mechanical VIN: YV4CZ85246
Well the customer declined any work. There were codes that had finally set.1 was 4th gear incorrect gear ratio, 2 input speed sensor code and shift time to long.
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