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Prev Professional Automotive Repair Technical Discussions for April 5, 2014
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Help Request Answers
2004 Audi A4 Quattro Avant 1.8L Xenon lamps VIN: WAUVC68E24
The front level sensor wasn't installed properly before I saw it. Thanks to Phillip Nguyen for the correct photo. Now the unit codes for 01539 every time it is put into drive. When I go into basic settings it doesn't show the front level sensor. It does show i...
2013 Audi A4 2.0L MIL Lamp on VIN: WAUEFBFL7D
Hello Fellow techs. I have a 2013 Audi A4 with the check engine light on. I have read codes with VCDS and I come up with "10537 Evap system leak detection or fuel vapor temp sensor P2026-00 (175) signal too low". This is a permanent fault. It will not erase an... Trouble codes: P2026 (10537 EVAP system leak detection or fuel vapor temp sensor p2026 -00 175 signal too low permanent)
2003 Chevrolet Silverado 1500 4.3L No Start VIN: 1GCEC14X13
HI, I have a weird one here. This truck came in on the towtruck, customer said once it started raining (we had big rain for two days) his engine wouldn't start, but felt like it was trying to. the thing cranks and feels like its trying to fire. I have spark a... Trouble codes: P1626
2004 Chevrolet Suburban 1500 Z71 5.3L Starting VIN: 1GNFK16Z34
Hi I have a 04 suburban cam in for a battery draw problem the truck was driven into the shop. we replaced the d/side door module with a new one from dealer now truck wont start I tried the 30 min key relearn even though the dealer said the switch wasn't progra...
2008 Jeep Wrangler X 3.8L No Start VIN: 1J4FZ24198
After rebuilding trans vehicle was returned to us for an intermediate click and no starter engagement. Customer states when problem happened they could get vehicle to start by firming putting shifter in the park position. We readjusted linkage, replaced range ... Trouble codes: P0403, P0706
2004 Pontiac Grand Prix GT2 3.8L Hesitation, Stall VIN: 2G2WS52274
On test drive, after gaskets replaced, I noticed a slight hesitation(flat spot) at 1900 RPM. I grabbed my Solus and drove it again monitoring APP and throttle position, nothing wrong showed up. I've found out you can make it act up in the stall by power brakin...
1999 Toyota Corolla CE 1.8L No Start VIN: 1NXBR12E0X
Hello my friends.I am pulling my gray hairs out on this one.Let me start from the beginning.I was hired to verify if this motor was bad or not.It has always started and ran,but had rough idle and strong fuel smell and vapors out of the exhaust.It was running v...
2005 Volkswagen Beetle GLS 1.8L Tiptronic switch VIN: 3VWCD31Y95
This Beetle came in with a complaint of late and hard shifts and a code 01045 - Tiptronic switch F189 008 - implausible signal. I could see that something was spilled into the shifter and it was tough to even get the shifter over to the manual tiptronic gate s...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1993 Buick Century Special 3.3L Poor Idle Quality, Surge VIN: 3G4AG55N0P
Much thanks to all that replied, and a special thanks to Patrick, who mentioned O2 sensor. The O2 was reading lean and the action of the booster leaned it enough to begin a surge in the idle. replaced the O2 sensor and this did fix the problem.
1997 Cadillac DeVille 4.6L Theft System VIN: 1G6KD52Y1V
Being a "COMMUNICATION ISSUE" I started by disconnecting all modules one at a time . Which did not return any results . So I must have a shorted bus issue. So I disconnected all modules and starting with the closest module in the loop to the DLC , I started ...
2001 Cadillac Eldorado ETC 4.6L Battery Drain VIN: 1G6ET12991
Thank you for all who replied - I did replace the BCM with a used one for testing to no avail - We plugged the original BCM back in and continued testing - the drain went away when it was in the shop and we could not get the problem to re occur - it has been w...
2009 Chevrolet Silverado 1500 LT 5.3L False message on IPC VIN: 3GCEC23J39
Bought additional ECT sensor and T stat even though they was NOT installed. Scan tool temp value was consistently 30 degrees below IPC gauge value. Don't have airlift and couldn't find a recommended method for bleeding air out of the system so I tried the sh...
2000 Chrysler LHS 3.5L unknown VIN: 2C3HC56GXY
Thank you to everyone that posted but on this vehicle the reservoir was not the cause of whining. This vehicle rack would change the pressure while driving with vehicle speed. during my test drives I did not feel a change in pressure during driving. We determi...
2005 Dodge Ram 2500 SLT 5.7L continues to pull VIN: 3D7KS28C95
Thanks to all who responded. I pulled the valve body and checked the TCC solenoid. It was fine. I pulled the TCC valve and spring to check it as well. All good. Fluid looked good and no metal in the pan. I pulled the transmission and looked at the converter an...
1988 Ford F-250 Custom 7.5L Excessive Emissions, No Start, Poor Idle Quality, Stall, Misfire VIN: 1FTHX25G5J
Up against the "close the post" deadline. The repair of this truck is in a few different stages, and it isn't completely fixed yet. However, the issue with the spout connector, that wouldn't let the engine run with the spout in place/runs without it was fixe...
2000 Ford Explorer XLT 4.0L Misfire, MIL Lamp on VIN: 1FMZU73X6Y
This truck is fixed, we decided to go back to the basic. so we pulled the #3 spark plug and found that the white insulater was gone so we replaced the plugs and wires and the misfire stoped, then we smoked the truck and found that the upper intake was leaking ... Trouble codes: P0302 (Cylinder 3 misfire).
2009 GMC Sierra 3500 HD WT 6.6L MIL Lamp on VIN: 1GTHK79659
I could not get the code to reset,removed and inspected the connectors at the heater and glow plug module and no problems found.Tested the pink signal wire and also no faults found.So the customer decided to monitor and we will see what happens.Thing is the he... Trouble codes: P154C.
2007 Hyundai Santa Fe GLS 2.7L Left intake cam VIN: 5NMSG13D57
I had a few replies that this is fairly common to this engine and a new head and cams should take care of it. I am closing this as fixed because I am confident that once I find a head,it will be fixed but finding the head is now the hard part. I had a few guys...
1993 Jeep Grand Cherokee Laredo 4.0L ignition coil VIN: 1J4GZ58S4P
Fixed finally with 4th ignition switch from NAPA. The 1st one from NAPA was a bad new one, so ordered another one, and fixed. But customet came back with same problam. Ordered 3rd one, but it was also a bad one(possibly the 3rd one was the ist one: possibly NA...
2004 Land Rover Range Rover HSE 4.4L Transportation Mode VIN: SALMF11404
Thank you all for your help. We went through the basics on this one, as we should. We suspected that it was in "Transport" mode and that was shutting things off. After a few different opinions on what was shut down in "Transport" we went with the body control ...
2006 Nissan Sentra 1.8L transmision VIN: HR15RF1535
the tranisimission was replaced an the vehicle is working very good
2006 Nissan X-Trail LE 2.5L engine and transimmision VIN: HR15FE4356
brain box (ecu)was not sending signal to airflow so we replace the ecu and the problem was solve
2001 Toyota Solara SE 2.2L tourqe converter VIN: 2T1CG22P81
After extensive road testing I came to realize the trans was slipping in 4th not lockup.the PCM was seeing to high of rpm in lockup throwing a 770.after removing side cover on trans I noticed that when I assembled the trans on the bench I dropped the sealing o...
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