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Prev Professional Automotive Repair Technical Discussions for April 20, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
1996 Buick Park Avenue 3.8L A/C Vents VIN: 1G4CW52K2T
I've got no air flow from vents when vent button is pushed also it turns off a/c compresser.then when you turn vents off the compresser kicks back in.the vent button lights up.i checked for vacuum to a/c programmer and = 18 in. Then applied vac. To each actuat...
1994 Chevrolet K1500 5.7L Stall, hard start VIN: 2GCEK19K6R
Got this old farm truck that the customer decided they would revive after sitting for 2 years. Among several concerns was the fact that it would not start. I suspected the ignition module as I had spark and no injector pulse. I have a truck like this so I robb...
2006 Chevrolet Trailblazer LT 4.2L Hesitation, Misfire, MIL Lamp on VIN: 1GNDT13S56
Thanks in advance...need help! Vehicle came in with complaint of loss of power MIL on. P0300. Very little miss at idle and intermittent miss WOT and more regular on decel(mostly on cyl 6). Swapped coil no change. changed plug no change, water mist around coil ... Trouble codes: 0300 (testing and results)
2007 Chevrolet Monte Carlo LS 3.5L battery VIN: 2G1WJ15K97
I removed the car starter, draw is the same. I found if i remove the number three connector from the bcm the draw goes away or u can remove the bcm fuse and the inst\pnl dim fuse and the draw goes away. Those fuses supply power to the number 3 bcm connector. I...
2009 Chevrolet Silverado 1500 LT 5.3L Fuel pump VIN: 1GCEK29049
Help GM Techs! I have a 2009 Silverado with fuel pump module codes. I tested powers & grounds at module & checked out ok. The vehicle intermittently stalls & will not restart. I installed a new fuel pump control module. This needs to be programmed I found out ...
2005 Chrysler Pacifica Touring 3.5L MIL Lamp on VIN: 2C8GF684X5
Thanks for taking the time to read this. Im looking for an idea or a path to pursue. We put a timing belt in this car and now we are getting a p0016. The code returns fairly quickly even at idle. I tried to find a way to reset cam crank corrolation including r... Trouble codes: P0016
2001 Dodge Durango 4.7L Timing Chains
Alright, i know there are lots of 4.7L tech help posts, but none of them address the issue im having. Im tryin to set timing on this engine. It uses a primary chain to drive 2 secondary chains, the whole timing chain sets new (guides, tensioners, and chains). ...
1995 Ford F-350 Eddie Bauer 7.3L No Start, Stall VIN: 1FTJW35F8S
Ok Powerstroke guys, I am a Diesel and heavy equipment mechanic by trade, but I have one that is stumping me. I have a general Idea of what the issue is, however the last thing I want to do is start replacing a bunch of parts. So in the event that I am missing...
2004 Ford F-350 Super Duty XL 6.0L oil pressure VIN: 1FTSF31P44
04 f350 6.0 low oil pressure when hot, replaced front cover and low pressure pump. High pressure is in spec. Seems to run fine but hard starting after hot the oil pressure light comes on. replaced oil gage sender.Manual oil pressure also drops when hot.Added 2...
2006 Ford F-150 XLT 5.4L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1FTPW14546
Vehicle came in on the tow truck because it lost power on the highway. Truck runs and drives fine under light acceleration. Under medium to heavy acceleration the truck just does not accelerate. Feels and sounds like a maf or converter problem. STFT 1 AND 2 AR... Trouble codes: P0171, P0191, P0300, P1235, P0316
2010 Ford F-150 FX4 5.4L drivetrain VIN: 1FTFW1EV7A
customer brought in a 2010 f150 5.4 mint truck noticed a grinding/stripping and possible clunk noise when under light acceleration 1500-2000rpm mostly while pulling a grade. the noise seems to quit when throttle is released noise is not present all the time bu...
2000 GMC Sierra 1500 SL 4.3L Starting VIN: 1GTEK14W4Y
We have a truck that the cust drove to us after he ran a extra ground to eng. Truck would not start.When we started to test the system it would not start,starter only buzzed and was loosing batt voltage when testing starter. while trying to start the battery b...
2004 GMC Savana 3500 6.0L power steering
Replaced hydro booster, power steering pump,and all but one power steering hose. That is the larger hose that runs from the pump to the remote steering resevior. This setup does not have a p/s system cooler. Have noticed that the accumulator on the hydro boost...
2004 GMC Sonoma SLS 4.3L Misfire VIN: 1GTDT13X64
Quick one for you GoodWrench guys. This Sonoma came to me misfiring and using lots of gas. Found bank 2 sensor 1 O2 was dropping out causing ECM to load up #2 side. Replaced O2, truck runs great. Thing is, check engine light starts flashing if you accelerate h... Trouble codes: P0300 (multiple cylinder misfire)
1983 Jaguar XJS 5.3L Pulse VIN: SAJNV5848D
Hi jaguar techs.i am working on 1983 jag xjs. Car sat for 3 years.i did full tune up and fill gas tank with fresh gas.i have everything but injection pulse.i check the injector power resistor by the rf fender and resistance between the terminals are about 6 oh...
1996 Jaguar Vanden Plas 4.0L In-car Temperature VIN: SAJKX674XT
This car had only one fan operating when it arrived. I repaired wiring under center console storage box at white connector plug that feeds power to right side blower. Now both fans are running. However, with AC on, the temperature of the air coming out of the ...
1999 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on VIN: 1J4GW58S1X
This Jeep has driven another shop nuts and now it`s my turn. I checked compression, tried a third set of plugs, swapped out the crank sensor and upstream o2`s to no avail. Pulled fuel rail and all injectors spray a good pattern. You start this up and 30 second... Trouble codes: P0300, P0301, P0306
2010 Mercury Milan Premier 2.5L Airbag Light VIN: 3MEHM0JA5A
really could use some insight here, I have a code for left side airbag deployment control circuit open, Is this the left impact sensor or something else? When I look up the code on alldata in shows about 5 different items depending on a number that is set afte...
2005 Other GM rodeo 3.0L Excessive Emissions, Hesitation, Surge, MIL Lamp on, blows white smoke VIN: MPATFS77J5
HI GUYS, I need a bit of guidance here not a diesel specialist but this customer is a regular and has a fleet of cars we service. The vehicle was towed in and wouldn't start.It would crank but not start.I removed the diesel filter and it was full of water.Re... Trouble codes: P0216
2007 Toyota Highlander Sport 3.3L Timing Belt VIN: JTEEP21A47
Vehicle came in for a water pump replacement at 38,000 miles. It was leaking into the timing cover although not seriously. We set the timing marks to TDC before we removed the timing belt. At some point the left cam (firewall side) jumped about 30 degrees coun...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 Chevrolet Express 3500 7.4L Misfire VIN: 1GBM7H1BXY
Would like to thank you guys for a lot of really great responses,especially Kent from Florida who went above and beyond. This vehicle was at a tire shop after having been at 5 other shops. They called me in because I had a Tech2 and the ability to do an inject... Trouble codes: P0300 (multiple cylinder misfire).
2008 Chevrolet Silverado 3500 HD LT 6.0L no shift stuck in 3rd VIN: 1GBHK39K98
thanks for all the help to start with. i was able to fix this truck with a little help. the trans control module did have to be programed and yes it is in the trans. i however did not have to take to a gm dealer. i have a fellow tech that is using a laptop bas...
1995 Ford Escort LX 1.9L Cylinder head and pistons VIN: 1FASP15J5S
What I did is replaced the cylinder head and pistons, cleaned the intake, and rebuilt the engine. I also put in new spark plugs, to prevent any detonation. Everything seemed correct, after a few road tests, I will have to conclude that it is running fine. T...
1998 Ford Mustang GT 4.6L Rear wheel bearings VIN: 1FAFP45X4W
Used a TIMKEN DRK311 Bearing Differential Kit to replace pinion and carrier bearings then set the backlash to spec. Sounds quiet now.
2004 Honda Civic EX 1.7L o2 sensor code VIN: 1HGEM21904
The customer and I have decided it is most likely the header that is the source of the code and are going to wait till he goes with a stand allone engine management system/ecm so these problems will go away since he only plans to modify the car more in the fut...
2004 Honda Odyssey EX 3.5L MIL Lamp on VIN: 5FNRL189X4
Thank you for your replies. My tech tried using a Snap On 15/16" crows foot, but he couldn't get it down into the valley where the knock sensor was located. He ended up removing the intake runners from the cylinder heads and then easily got access to the knock... Trouble codes: P0325 (Knock Sensor Ckt).
2000 Mercedes-Benz E320 3.2L oiling VIN: WDBJF65J0Y
Thanks to all who phoned and posted responses to my needs. The final conclusion is, there is a specific way to seal the front cover. The A-B method. Without a diagram it will be impossible to explain which ports to seal and not seal. The reason for not sealin...
2006 Nissan Altima SL 3.5L secondary timing chain tensioners VIN: 1N4BL11EX6
Ok. I purchases a new tensioner assy. for the right bank and yes it is different. It does not have the small plastic insert inside the spring, so I did not replace the complete tensioner. Just the shoes and reassembled. Car runs great with no wine or chain noi...
2004 Porsche Cayenne Turbo 4.5L Oil Level Monitor VIN: WP1AC29P64
Added an additional ground wire to the oil level sensor & the issue is solved. Thank you to Alexandru for the suggestion! After I read his reply I load tested the ground circuit for the sensor by connecting an 1156 brake light bulb to it. The bulb seemed to bu...
2000 Saturn SL2 1.9L no 1st gear, no 3rd gear VIN: 1G8ZK5271Y
Thanks for all the help everyone. I gained some valuable knowledge on this one. We concluded the transmission was too far gone to worry about so we swapped it out with another unit. Our suppliers warranty was good as gold and they quickly replaced the part....
2003 Saturn Vue 3.0L antifreeze VIN: 5GZCZ63B83
Ill call This one fixed... After loading the oil with dye and putting it back on the road to return a week later with no signs of dye or oil in antifreeze I am sure it was residual. I do believe the foam in the fill neck is caused by excessive blowby and that ...
2007 Subaru Forester X 2.5L low pedal VIN: JF1SG63677
Thanks to everyone, A couple of responses were exactly right. It turned out to be the rt front caliper by-passing. We proved it by clamping off all 4 rubber brake lines to the calpers. As we removed one at a time checking position of pedal, on the first 3...
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