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Prev Professional Automotive Repair Technical Discussions for August 17, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2006 Chevrolet Silverado 1500 WT 5.3L 5v ref circuit VIN: 1GCEK19B76
Live data shows low press on the low switch and high press on the high side switch volt meter shows 5v at switches both switches have been replaced what could cause the 5v ref code and a/c inop also if I command a/c on with modis it will come on but the coolin...
2008 Chevrolet Suburban 1500 LTZ 5.3L MIL Lamp on VIN: 3GNFK163X8
Long term fuel trim bank 1 goes to -27 to -30 on a long decel at higher speeds 45+. Bank 2 is normal. As soon as you touch the gas pedel it switches cells and drops to near 0%. We have Swapped front and rear o2 sensors side to side. Amps ramped one injector on... Trouble codes: P0172 (rich bank 1)
1998 Dodge Dakota SLT 5.2L Misfire VIN: 1B7GL22Y8W
Truck came in with a plugged cat and a po300,po304,po307 codes because of the exhaust,now I have a po132 code high 02 1/1 voltage of 4.47 volts,also my mt2500 snap on scanner comes up with ol flt,I assume the ol means over load but what does the FLT mean.Just ... Trouble codes: P0300, P0132
2002 Dodge Dakota SLT 4.7L Crankshaft tone ring VIN: 1B7GG42N12
Hello techs! This ones a doozy. We swapped in a used low mileage 4.7 from a wrecked 2003 Dakota and when we tried to start it back fired and blew the back of the intake manifold off! We have the other ECM and harness. So can we just swap those and make it work...
1996 Honda Odyssey LX 2.2L MIL Lamp on VIN: JHMRA1866T
Hey, I have this Odyssey That keeps throwing this egr code! I know the system is completely clean. I'm thinking I have a control problem. Vacuum going to vacuum control valve is 20hg., coming out to the egr solenoid is 6 in hg., going to egr valve when solenoi... Trouble codes: P0401
2009 Honda Odyssey EX-L 3.5L No Start VIN: 5FNRL38699
OK, this is weird. Replacing a left side power slider door motor assembly for a friend at my house. Part will be in on Tuesday. Took the bad one out and went to move the van. Cranks, but will not start. Plugged the assembly back in thinking, maybe? Still no fi...
2002 Jeep Grand Cherokee Limited 4.7L Unknown VIN: 1J8GW58J52
Help Jeep techs! this Jeep received an all new dealer heater case, core, evaporator and motors as it originally came in with blend door issues- this customer wanted to do everything as he is keeping it long term and wanted it reliable. Now after a couple of we...
2005 Suzuki Forenza S 2.0L Runs fine VIN: KL5JD56Z15
This car has a tough noise to find. It sounds like a ticking, light metallic rattling noise kind of like what a small ball of metal might sound like as it touches the lowest point of a vertical roulette wheel. It is easy to duplicate when running in park if yo...
1992 Toyota Camry XLE 3.0L Excessive Emissions, Poor Fuel Economy, excessive rich VIN: JT2VK13E9N
Sorry so long, copied and pasted notes from work order in computer... Pulled a wiring diagram of the powertrain electronics. Printed them out, stapled them together, and then marked them up. Pulled the air intake and tested the mass air sensor for operation.... Trouble codes: 99 (No codes)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Audi TT Quattro 1.8L temp guage VIN: TRUWT28N02
Thank you The instrument cluster will be replaced on this vehicle when the customer has funds. The lack of visceral overheat symptoms and the most important fact, the VCDS Engine Measure Block Data confirmed engine temperature is actually normal 88-93C whil...
2004 Cadillac SRX 4.6L Misfire, MIL Lamp on VIN: 1GYEE63A84
Well gentleman you have helped once again. Thanks you very much.The problem was like you all mentioned it had a fuel trim issue.I'm afraid I was unable to give you the fuel trim and my buddy didn't give me the best info.I started by dis-connecting the H02 sens...
2004 Chevrolet Silverado 2500 HD 6.6L Injector Knock VIN: 1GCHK23194
We replaced the #6 & 8 injectors. This fixed the fuel knock and the fuel rates are back to normal. I did notice the # 8 flow rate was at .23ms #6 was .27ms. The injectors must have been leaking enough fuel to cause the knock noise. After replacing the injector...
2007 Chevrolet Silverado 3500 Classic LS 6.6L Neutrals in Rev or Drive VIN: 1GCHK33D17
This one is fixed, as several had said look at the speed sensors, I watched the Output speed sensor on the lab scope and even though it would not set a code I got no signal until about 3 miles per hour. After installing a new sensor I got signal as soon as it ...
2003 Chrysler Town & Country (Van) LXi 3.8L return line VIN: 2C4GT54L03
Thank you everyone for the much needed insight with this problem. The customer declined further repairs so I was unable to repair it. Thanks again to everyone for your helpful posts.
2004 Dodge Neon SRT-4 2.4L Cuts out, boost VIN: 1B3ES66S84
More or less info for the next tech with this problem, turns out the duty cycle on the wastegate sol. is programmed to each wastegate, took out a adj. stage 2 and put a stock wastegate in it and performed flawless. 15-17 max psi Stage 1 (stock) is non adjust...
1998 Ford Contour GL 2.0L VCT system VIN: 1FAFP6538W
Changed the engine oil and filter. Replaced / repaired the VCT sensor wiring connection - the connector was faulty allowing the wire terminals to contact. Thanks to all who took time to respond!
2001 Ford Focus ZX3 2.0L MIL Lamp on VIN: 3F1054329A
hi all,and thanx for the help. i believe this one is fixed. i got replys from a pcm to wiring to "adjusting" the tps to reflash the pcm. all good ideas and each way carefuly looked at. after we did all the testing again we decided to make the new tps adjustabl... Trouble codes: P1120.
2005 Ford F-350 Super Duty King Ranch 6.0L MIL Lamp on VIN: 1FTWW30P15
Thanks very much to all who replied. You were all right on target with the cause of this DTC and I really appreciate your expert help. The problem with the turbo was caused by the driver and her easy does it style of driving. The truck never gets on the freewa... Trouble codes: P0299 (Turbocharger under boost).
2006 Kia Amanti 3.5L Misfire, MIL Lamp on VIN: KNALD12456
I have not fixed this car yet,but they want me to close it asap.Warren had the idea of injector driver problem and I believe he is right.My low amp probe got broken, so I ordered another and wont get it until the 22nd.I pulled the injector rail and suspended i... Trouble codes: P0305 (cylinder 5 misfire).
2008 Kia Sorento EX 3.8L timing chain VIN: KNDJC73628
I appreciate the responses on this Kia for the timing chain issue. With the updated tensioners installed as stated in my first post we still had noise from the passenger side. With the valve covers removed we could see the passenger side chain ride up on the c...
1996 Volvo 850 2.4L ABS warning lights VIN: YV1LW5542T
Best reply came from John [...] about four splices located in harness coming out bottom of fuse/relay box (1996 850 only). See Thanks, John. Will get to it after summer dies down.
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