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Prev Professional Automotive Repair Technical Discussions for February 25, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
1998 Chevrolet Venture 3.4L Excessive Emissions, Poor Idle Quality, Surge, Cuts out, Stall VIN: 1GNDX03E1W
Since that repair my idle went to normal but when warm starts to stall n excessive emissions start to buil up n engine dies before comin to stop noticed when unplugin iac engine idle went way up but that's the only way I can drive this monster n it won't stall...
2003 Chevrolet Silverado 1500 5.3L Limp Mode VIN: 2GCEK19T23
Truck is intermitantly getting stuck in limp mode, 3rd or 4th gear. We had codes that pointed to igniton switch problem. Put a aftermarket switch in was good for a month. Came back. Same. Last week put in oem switch, has acted up 5 times last week. The freeze ...
2003 Chevrolet Silverado 1500 5.3L blower VIN: 2GCEK19T83
repeated blower resistor failure ,sorry i put message in wrong box youll find message in repair history , sorry very long day
2004 Chrysler Concorde LXi 3.5L Engine VIN: 2C3HD36M04
The problem is intermittent and I can't replicate it. Customer is complaining that the engine will occasionally rev up to about 2000 RPM on cold start up and will continue to rev high for about 5-10 minutes or until he shuts it off and starts it up again, then...
2004 Dodge Dakota 3.7L Unknown VIN: 1D7HG12K44
on test drive, down shifting from 4th to 3rd this thing shifts hard and rocks the truck and eventually set a code and go into limp mode. has codes p0734 gear ratio error and code p1790 fault after 4th shift. clutch volume indexes are as shown LR 51, OD 170, UD...
2002 Ford F-350 Super Duty XL 7.3L No Start, Poor Idle Quality VIN: 1FTSF31F12
Vehicle will crank and crank and seldom start when cold. Sometimes it will just get going and it has to be coaxed along to keep running. If we get it started and running for a couple minutes, all seems well and will restart when hot, but not after cool down. T...
2003 Ford F-250 Super Duty XLT 6.0L Excessive Emissions, Pinging sound VIN: 1FTNW21P83
Just got this truck in and need some direction. I don't speak diesel to well! Vehicle seems to run okay at idle and under light acceleration. If you give it 1/2 to full throttle, it will have a lot of Black Smoke out the exhaust and a pinging sound under the h...
1999 Jeep Grand Cherokee Limited 4.7L Stall VIN: 1J4GW68N2X
customer came in complainging staling issue,she could't really tell me when it happens but happend,asked her if car start when trying to restart,she basic told me left the car their and came back after 30 minutes it started.. I was able verfied customer concer...
1999 Kia Sportage 2.0L Poor Idle Quality, Hesitation, Cuts out VIN: KNDJA7231X
thanks in advanced for the help! this vehicle was towed in with crank but no start.changed plugs because it seemed flooded and got vehicle to start but has no power at all seems like plugged exhaust cut pipe no diff. acts like timing off as well also took cove... Trouble codes: 343 (cam sensor)
2000 Nissan Maxima GLE 3.0L Poor Idle Quality, Surge, MIL Lamp on VIN: JN1CA31A6Y
i replaced ecu thinking it was that due to follow all wiring from ecu to mass air flow and it was ok. also replace air flow meter and gas filter .. the car wont go pass 2500rpm. i also unplugged the exhaust system thinking the cats were gone , n luck this car ... Trouble codes: P0100, P1211
2001 Nissan Xterra SE 3.3L Alternator VIN: 5N1ED28Y51
This Xterra came in this morning with the complaint or long cranks, no cranks, and/or starter click. As I went to start the truck this morning the dashboard was not lit up. The odometer, speedometer. tachometer, and all the warning lights were dead. The only l...
2001 Nissan Quest SE 3.3L Unknown VIN: 4N2ZN16T71
I have a 01 Nissan Quest that failed for incomplete monitors. Checked for codes, had none. Had pending code po325 knock sensor code and no other codes. Had no loose wiring. Cleared PCM and tried to run monitors on dyno but CAT and O2 is not clearing. Just wond...
2002 Nissan Frontier SE 3.3L Misfire VIN: 1N6ED29X62
Vehicle has missfire, code 300 & code 174. I can see on the snap on solus pro when the problem occurs , alpha bank 1 goes to down to 65 & bank 2 goes to 110. I know i can use my needle nose plier when the problem occurs i pinched the fuel return hose & pressur... Trouble codes: P0300, P0174
2005 Nissan Sentra 1.8L No Start VIN: JN1CFAN16Z
Hi there! I've got an imported Nissan Sunny in the shop.The original engine went(QG16) and there is no replacement available locally.Another shop dropped in a local(South African) QG18 engine,changed the intake manifold,etc and extended the cam sensor wiring,s...
2003 Pontiac Aztek 3.4L MIL Lamp on VIN: 3G7DA03E83
Ok so I have this 2003 Aztec.Came in with a cam possition code removed power steering pump to check/test senser and connector.found all 3 wires broken out of new connector from napa noted it has different plug than factory so i ordered matching senser...
2002 Saturn L200 2.2L exhaust VIN: 1G8JU54F22
Car has an exhaust ratteling sound being resinated all the way through , ive banged on the exhaust system with no results. All is quite. When idling, you can here a rythmic rattle pronoced at the flange and on down. Customer says it goes away after driving it ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 Chevrolet Tahoe LT 5.3L electronic controls VIN: 1GNEK13Z73
First, thank you all who genuinely tried to help and sent useful info on things to check. Those of you who just say to swap parts so you get points for trying to help are a waste of IATN space. What I have learned after a week and a half and an IATN help reque...
2004 Chevrolet Silverado 1500 5.3L radio VIN: 2GCEC19T74
It's no surprise that the boys of IATN know what they are talking about (and my local dealer, not so much). They did verify that once programmed, the radio can be removed and reinstalled all day long with no ill effect. Thanks for all the responses, Tim L.
2003 Honda Civic LX 1.7L No Reverse Pops Out Of 5th VIN: 1HGES15543
thanks to those that replied to my request.i still haven't had time or moneny to tear into this yet.i will add info with what i find and my repair info when i do.thanks again.
2004 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALMF11404
Got new sensors from WorldPac again and the readings on them were 4.8 meg ohm. Specs again are 5 meg ohm to OPEN(infiniti or OL). Off with the intake and I was shocked and embarrassed to report that all 4 sensors were loose.Somehow the last tech in,forgot to t... Trouble codes: P1327 (Knock sensor2 circuit fault -Bank 1), P0332 (Knock sensor 3 circuit fault - Bank 2), P0327 (Knock sensor 1 circuit fault - bank 1).
2003 Lincoln LS 3.9L engine no compression VIN: 1LNHM87A13
thank ou for all the replies we had to change the engine afterv checking the compression and the timing.
2005 Lincoln Navigator 5.4L cam phaser VIN: 5LMFU27575
Well this thing turned out to be a nightmare. After getting approval from the engine rebuilder to reinburse us for the parts and labor I went to replace the cam phaser on the drivers side head as most of you said. In the process of doing it I pulled the front ...
2007 Nissan Versa SL 1.8L upshift? VIN: 3N1BC11E57
Thanks for the feed back guys. Most suggested to clear the e-prom. Assumed Nissan did that when we took it to them, they didn't. Left the car with them to do this vital piece (They didn't charge us for the second service, shocked) That didn't fix it. Finally g...
1999 Volkswagen Passat GLS 1.8L alternator VIN: WVWMA63B4X
First of all thanks to all who replied. I received emails from many technicians as well as several emails from the audidoctor. The largest part of the emails directed me to look into voltage drop both on the Ground and Power side. Some informed me of the wo...
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