Automotive Technicians Technical Discussion and Fixes for Aug 4, 2012 - iATN (Members Only)

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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models

	Help Request	Answers
	2002 Acura TL Type-S 3.2L VSA System VIN: 19UUA56842 Customer had the transmission rebuilt on this vehicle. When they recieved the car they said the "Yellow Triangle light" was illuminated. They then stated that shortly after driving the vehicle home that the VSA light illuminated. I then accepted the job and re...	View
	2008 BMW 328xi 3.0L Studders VIN: WBAVC93528 Hoping A BMW guru reads this!! The customer stated that he drove the car thru some water and then the problem occurred. I looked for codes and found none, checked the air box for water and it was dry. When under load in every gear the car studders like your d...	View
	2001 Buick Park Avenue 3.8L MIL Lamp on VIN: 1G4CW54K51 drove around got 6 monitors runs greet no problem only the light comes on for po410 code change the rely pump	View
	2000 Chevrolet Camaro Z28 SS 5.7L cooling fans VIN: 2G1FP22G9Y found pcm signal wire to cooling fan number 2 having erratic voltage at 13.2 volts w/int ground. a/c has signal at switch in vehicle, nothing after pcm. right cooling fan operates poorly. both fans operate fine with relays jumped. a/c compressor powers when co...	View
	2005 Chevrolet Trailblazer LS 4.2L unexpected accelerat VIN: 1GNDT13S85 my customer called on 8/2/2012 and claimed she had an accident as a result of her 05 trailblazer suddenly accelerating while doing a turn around in a neighbors driveway. She hit a car because her brakes would not stop the car. I looked at the scene of the acci...	View
	2005 Chevrolet Silverado 3500 LS 6.6L fuel injector #8 VIN: 1GBJK34265 hi dmax friends, Ive got this service truck again, now going on over a year with same symptoms, same repair and same results, after injector replacement truck runs great for about 500-800 miles, then gradually starts to fuel knock and smoke. only has one code-...	View
	2006 Chevrolet Silverado 3500 LT 6.6L Excessive Emissions VIN: 1GCJK33266 Trruck leaves a black cloud behind it when accelerating hard. Other than that it runs real good.When it came in it had a whole slew of codes. I cleared them and drove it while monitoring the fuel rail press, turbo vane position, egr and map ... all looked good...	View
	2002 Dodge Grand Caravan ES 3.8L Hesitation, Surge, Cuts out, Stall, Misfire VIN: 2B8GP54L42 Customer had vehicle towed to my shop friday and said thursday it suffered massive power loss and died on him. Starting from cold it runs fine for a few minutes then randomly it jerks and starts to lope and feels like a misfire. Then it straightens out and rev...	View
	2003 Ford Focus ZX5 2.3L idiot lights VIN: 3FAHP37Z63 Hi guys, have a 2003 focus 2.3L car came in with battery light dim and flickering,also low fuel light,check engine light on also dim. checked charging system was 12.6 volts at idle.all wiring and connectors seem fine, also checked positve battery cable at 175 ...	View
	2009 Ford Flex SEL 3.5L overheat VIN: 2FMDK52C09 hi all,have this ford flex here that came in overheating. cooling fan not engaging. i have power to the gn/rd wire at controller and ground on the bk wire.i could energize the fans after the controller so i assumed controller had gone bad...wrong! im leaning t... Trouble codes: P0480 (fan 1 control circuit)	View
	2010 Ford Focus SEL 2.0L Not sure-diesel focus. VIN: AFAUXXMJDU All the specs I got seem perfect ? Dosent make sense?	View
	2011 Ford Fiesta S 1.6L Dura shift/bluetooth VIN: 6FPAAAJGAT Hi all , Having multiple issues with a fiesta. First thing is When selecting drive , vehicle sometimes goes back a meter and also nearly hit someone(dangerous). Intermittent,and this vehicle is a dura shift. Second thing blue tooth issues. Customers phone d...	View
	2002 Lexus LS430 4.3L power steering VIN: JTHBN30FX2 Hi all, thanks for your help in advance. We have an 02 Lexus LS430 with a power steering noise that will not go away. Already flushed the system, new power steering pump and a new rack and pinion as well and the noise will not go away. We are stumped here, any...	View
	1995 Mercedes-Benz E320 3.2L no start VIN: WDBEA32E3S Hi everybody needs some inputs in this car.I replace ovr. for not fuel pressure and not injector post;also no spark the relay take care fuel pressure and injector post.and rarely spark also code 17 after replace ovr.clear the code and never showup;I check wiri...	View
	1995 Mitsubishi Eclipse GST 2.0L Poor Idle Quality VIN: 4A3AK54F9S Idle speed screw is adjusted correctly at throttle body, idle speed gets higher as engine warms up, starts out at 1500 and goes to 2300. No codes, I think it needs a throttle body according to the repair info. It sounds like the idle air passage wears out. Any...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2002 Audi TT Quattro 1.8L MIL Lamp on VIN: TRUUT28N82 As usual the answer was in the basics. The suggestions about the wastegate were good. I forfot to mention that we had tested it. Ralph was right on. The N75 solenoid was bad. The resistance was ok but it did not click when power was applied to it. A new solen... Trouble codes: P1555 (Maximum boost pressure exceeded).	5
	2001 BMW 525i 2.5L Compressor VIN: WBADT43421 Thank you all for your time and effort. I feel rather dumb for not thinking it through and just processing the thought, "what does a pressure switch do?". Slammed a new switch in it and the clutch came to life! Thank you again! IATN is the best!!	4
	1997 Chevrolet S10 2.2L MIL Lamp on Thanks to Dan [...]. He got it lighting strike! Damaged the ABS,ECM,A/C tranducer, radio,air bag, and light mouduel! ended up putting two ECMs in because the ABS shorted out ECM throught the data line!!! Trouble codes: P0342, P1602.	4
	1998 Chevrolet K1500 Cheyenne 5.7L No Start VIN: 2GCEK19R1W Well since the majority said fuel pump I went back and tested fuel pressure again. Now there is only 10 psi. Dead headed the pressure line before fuel filter still only 10 psi.Called customer and he told me that it was a new pump this spring. When pulled tank ...	11
	2002 Chevrolet Silverado 2500 HD 6.6L EGR monitor VIN: 1GCHC29102 Thanks for the replies folks, I finally got the monitor to run after putting about 600 miles on the truck and going through a series of cold soaks. I didn't think it would be that much trouble getting an EGR monitor to run but it ran and the truck passed s...	8
	2006 Chevrolet Cobalt LT 2.2L Tcm VIN: 1G1AL15F26 We were never able to establish communication with the tcm. While on a obdii drive cycle run the vehicle shut off and when we started it back up it would not shift, it wouldnt show rpm, mph, and once in park would not unlock to shift into neutral. The tcm must...	3
	1999 Dodge Grand Caravan SE 3.3L Stall VIN: 1B4GP44G0X SORRY, been a while dealing with my dad's health problems and work. Found out that when thios occurred the dash would not fiunction, no indicator lights , no odometer and gear indicator. Just for kicks, i hit the top of the dash and everything worked and it st...	13
	2007 Hyundai Santa Fe SE 3.3L Power Door Locks VIN: 5NMSH73E87 Vehicle has not returned yet, so no answers at this time.	3
	2002 Infiniti Q45 4.5L audio VIN: JNKBF01A52 replaced audio unit, system now fully functional. I found one document from infiniti regarding the operation and diagnosis of the hvac/audio system. flow chart pointed to power and ground to audio unit. Ended up being pretty cut and dry. With a system as co...	1
	2001 Mercedes-Benz E320 3.2L Airbag VIN: WDBJF65JX1 After coating all the connector contacts at every step from SRS module to airbag with Stabilant 22 i reset the light and it did not comeback. I drove the car a few times to see if maybe it was going to come back on but it seems to be fixed. Thanks for the help...	3
	2002 Pontiac Grand Prix GTP 3.8L left cv shaft seal VIN: 1GNDTYF262 This car was taken to a transmission only shop had the worn bushing replaced and was re assembled with a new seal and has not had a problem sens	14
	2004 Subaru Impreza WRX 2.0L Excessive Emissions VIN: JF1GG29624 This is a good one - fixed it by flushing the injectors (BG) and adding some fresh high octane fuel, turns out we had too much E85 in it which caused the A/F sensor to read lean thus adding fuel trim. runs great passed emissions with flying colors. Thanks for ... Trouble codes: P0171 (System lean bank 1).	4

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