Automotive Technicians Technical Discussion and Fixes for Oct 29, 2013

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	Help Request	Answers
	2005 Acura MDX Touring 3.5L Engine VIN: 2HNYD18695 After Car came back from transmission shop owner noticed leaking coolant near radiator, so transmission shop replaced radiator. 3 days later the car started to overheat and blow white smoke out tail pipe indicating a blown head gasket. No sure if related to R...	View
	2006 Audi A6 3.2L No Start VIN: WAUDH74F06 We have an Audi A6 Quattro that came in with an intermittent stall/hard start.I drove it for a whole day without a problem.On the second day I could get it to cut out on hard acceleration.Brought into the shop and had trainee check fuel pressure which was less... Trouble codes: P3073 (Fuel pump circuit), 12403 (VAG code)	View
	1999 BMW 528i 2.8L Starting VIN: WBADM6331X Hi guys I am in desperate need for help on this car I just Purchased it 2 days ago the trunk would not close, so I took the latch out and put a new spring in it. Right after I got done the car won't crank or start I figured it's a blown fuse somewhere but I ca...	View
	2003 BMW 325xi 2.5L drivers door lock VIN: WBAEP33443 Having trouble with this bmw 325 xi wagon. Drivers door lock only will not unlock with either remote or center console button. Have tried 2 new factory door lock actuators and still the same result. Have ohmed out all wires going from general module to door lo...	View
	2002 Chevrolet Trailblazer LS 4.2L ignition switch VIN: 1GNDT13S12 perfrom computer scan has code b 2960 also code p1336 anti theft deterent imoblizer not sure how system works thanks for any help you can give me fellow techs	View
	2006 Chevrolet Corvette Z06 7.0L P0622 message "Check charging system VIN: 1G1YY26E16 The alternator is working in this car. The battery is new. I have a constant 12v and 5v signal to the alternator. Pcm is commanding 100% field too much it appears and is setting the message. The problem I am seeing is current. From the alternator to the fusebo...	View
	2006 Chrysler Town & Country 3.3L No Start VIN: 1A4GP45R66 I suspect a fuel delivery issue [bad ignition switch or fuel pump] as I've found that the one time I was able to replicate the problem, cycling the ignition key several times allowed me to get the van running. I do not have access to a DRB. Neither my Snap On ...	View
	2006 Chrysler 300 Touring 3.5L Excessive Emissions, Misfire VIN: 2C3KA53G26 vehicle came to my shop after being at two other shops. customer said he was sitting in traffic and vehicle began to run very poorly. no throttle response, bad misfire, but then the mis went away and he began to get throttle response again. after about fourty ... Trouble codes: P0300	View
	2003 Dodge Intrepid ES 3.5L Poor Idle Quality, Hesitation, Stall, Misfire VIN: 2B3HD56MX3 Car seems to run deacent on initial start 3 seconds ,then seems to start missing ,then seems to start running rich on bank 1 and lean on bank 2 chugging but will tach out no problem ???any help will be appreciated have been cursed with this Dodge Intepid night... Trouble codes: P0306 (Missfire Cyl6 was initial complant now wont come back on but still missing), P0052, P0174, P0700	View
	2007 Dodge Caravan SE 3.3L Controls VIN: 1D4GP25R47 I'll give some details on how I got to this point as it may help someone else logically diagnose the same problem I had. It's not my vehicle but I'm the lucky mechanic that gets to fix it, so I'm describing the complaint as I was told. "While driving the veh...	View
	2008 Dodge Avenger SXT 2.4L Electronic VIN: 1B3LC56K88 Transmission goes into limp mode after driving a few miles.The fault code is P0765 Underdrive solenoid cuircuit.Before we get into this am trying to find out if this is a common issue with this transmission?	View
	2003 Ford F-450 Super Duty Lariat 6.0L Charge Light VIN: 1FDXX47P43 Charge light goes on and off on dash when watching with volt meter volts go from 13 to 14 as light goes on and off.Also can here and see rpms drop and increase slightly as light goes on and off.Any help appreciated thanks. Jim [...]	View
	2011 Ford F-350 Super Duty King Ranch 6.7L MIL Lamp on VIN: 1FT8W3DT0B Truck has had p1249 since about 120000 miles, Customer states truck runs fine, and only exhibits poor fuel mileage while trailering. We have followed diagnostic tree and found no problem with system. Clear code with ids and run koer test and the code immediate... Trouble codes: P1249 (Wastegate Control Valve Performance)	View
	1996 GMC C1500 Sierra SL 5.7L r p m VIN: 2GTEC19R5T when this truck came in the rpms were at 3000. we put the scan tester on and had 2 codes P0507 ( idle control system) ans P1509 iac system too high ( the rpms werre too high so this code is set) We smoked the whole intake EGR exhaust system and had a couple of...	View
	2004 GMC Sierra 2500 SLE 6.0L 2nd gear VIN: 1GTHK23UX4 Hi to all and thanks in advance for the help. Just replace seal in transfer case because T.C. was overfilling with ATF. Customer also complained about a slow engagement in mornings. Pulled trans pan and inspected an replaced filter. Pan was clean as could be, ...	View
	1999 Honda Accord LX 2.3L No Start VIN: 1HGCG5640X hello, we have been chasing a no start condition in this 99 accord for 6 months. the customer will tow the car here we get in it and it always starts. 6 months ago we did get it in a no start and replaced the distributor for no spark. Has had a main relay and ...	View
	2003 Honda Civic EX 1.7L Misfire, MIL Lamp on VIN: 1HGEM21993 Client replaced spark plugs with new OE plugs, still misfires, test drove fully warmed up, engine misfires at 2000-3000 rpm, at very light load, does not misfire any higher or at idle or heavier loads, all scan data readings look normal while misfiring, plugs ... Trouble codes: P0301 (Misfire Cyl 1), P0302 (Misfire Cyl 2), P0303 (Misfire Cyl 3), P0304 (Misfire Cyl 4)	View
	2007 Hyundai Entourage SE 3.8L Misfire, MIL Lamp on VIN: KNDMC23367 Hyundai and Kia guys, looking for a little help. I have an Entourage that has an intermittent Check engine light for Cylinder #3 misfire, no other codes. Have replace coil and plug, and bank 1 upstream sensor, per tsb. Vehicle never misfires here. This morning... Trouble codes: P0303 (Cylinder 3 misfire)	View
	1999 Jeep Grand Cherokee Laredo 4.7L No Start, Stall VIN: 1J4GW58N6X Fairly new car to customer.they had a new battery installed elswhere and came in complaining of stall in am cold and at stops.sounded like dirty throttle body,so we cleaned and reset min idle.had no codes.customer came back week later same problem.they have on...	View
	2002 Jeep Liberty Limited 3.7L Mechanical i have this jeep in here ITS A 2002 WITH THE 3.7 LITER.. the a/c woks fine for about 5 min o so... then the a/c.. pump stays on for a lengthy time...problem is you start losing heat..the high side seams a litte high 34 psi it is 70 degrees in shop the high sid...	View
	1998 Lexus ES300 3.0L Hesitation VIN: JT8BF28G5W Car came in with only cel complaint middle of the afternoon p0171. Vac. Line coming off intake snorkle cracked and broken. Replaced with new hose released car same day. Cel back on 3 days later same po171. Car dropped off no gas... Jumped into car first thing ... Trouble codes: P0171 (Lean bank 1)	View
	1992 Mercedes-Benz 300D 2.5 2.5L Part Throttle VIN: WDBEB28D9N Hello everyone please give me some tip customer complained about low power i drove the vehicle i noticed vehicle does not downshifting works with shifter and kick down switch but never goes to 3th gear with part throttle from 4th gear and sometime vehicle goes...	View
	2006 Mercury Grand Marquis LS 4.6L wiper motor VIN: 2MHFM75V26 This vehicles wipers intermittantly will not shut off. Also intermittently they will not turn on except for high speed & then will not go to park but will stop wherever they are in the cycle. Sometimes if you cycle the ignition switch the problem will complete...	View
	2004 Nissan Xterra SE 3.3L Unknown VIN: 5N1MD28Y94 We have this vehicle with very intermittent codes and problems. First is a P0328 which I know is a Knock Sensor out of whack. Have given customer estimate for Knock sensor replacement. 2nd code is P0500 which currently is kind of elusive. Customer complaint i...	View
	1994 Oldsmobile 98 Regency 3.8L No Start VIN: 1G3CX52L9R This car will some times start and sometimes not 50% of the time. No spark when it wont start. When it does start it runs perfect. Cam and crank sensor have been replaced as well as the crank pulley. Ignition module was replaced a little over a year ago (diffe... Trouble codes: P0341 (Cam/crank error)	View
	2000 Pontiac Bonneville SE 3.8L Battery draw VIN: 1G2HX54K14 First I wanna thank you in advanced if someone can help solve this nightmare!Came in for a battery draw.i narrowed it down to the ign. switch fuse,fuse 29 on rear fuse block.if I unplug the dim,the draw goes down,if I keep that unplugged and unplug the rim the...	View
	2004 Subaru Impreza WRX 2.0L Misfire, MIL Lamp on VIN: JF1GD29664 I'm trying to help a good friend out. His car runs extremely rough. CEL blinks under load, misfires consistently. Pulled codes and found misfires in all cylinders. I don't want him to spend a bunch of money throwing parts at this car so we did some testing. We... Trouble codes: P0301, P0302, P0303, P0304	View
	2000 Toyota Land Cruiser 4.7L Suspension VIN: JT3HT05J6Y Got this Toyota that a customer bought recently and vehicle has 157,000 miles on it. He says at highway speeds the vehicles rear end will wounder left and right. almost like the rear end is walking back and fourth. Test drove and it does around 65 or 70. does ...	View
	2000 Toyota Echo 1.5L brake booster VIN: JTDAT1238Y This car came to us with the complaint of a intermittent hard brake pedal and a rough idle at the same time. After many test drives it acted up. Since I was off the day it came in, another tech at my shop diagnosed it as a faulty IAC motor. I was skeptical, bu...	View
	2004 Toyota 4Runner Limited 4.0L climate control VIN: JTEZU17RX4 HELP Hi , thanks for your time . After replacing the ac evaporator we noticed first the coolant temperature gauge does not work all the time . It moves from reading correct to all the way cold after moving the truck only a few feet , there seems to be no rime ...	View
	2005 Volkswagen Jetta GLS TDI 1.9L valve timing VIN: 3VWSR29M85 well long and short of it, been doing this timing belt all day must have done it 30 times. crank is locked in TDC, Cam is locked in TDC I have even removed valve cover to visually check the came position. when I try to crank by hand it stops dead either direct...	View
	2000 Volvo V70 X/C AWD 2.4L Electronic VIN: YV1LZ56D4Y This vehicle is randomly going into "limp mode" with the forward arrow flashing. The problem happens sometimes after coming to a stop where the customer described the vehicle as "being stuck in overdrive" The vehicle shifts normally at all other times. The flu...	View
	2004 Volvo XC90 T6 2.9L Suspension VIN: YV1CM91H14 we have replaced both front axles, left and right control arm bushings and still get an intermittent (death wobble). The customer states that it feels like a wheel is falling off. Mostly happens at highway speeds if he slows down the shake stops. He also noted...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2005 Acura TL 3.2L Mechanical VIN: 19UUA66275 I thought I closed this after the 3rd post. I was looking to see what was common. If these usually bend valves. The other shop installed a belt and returned it when it wouldn't start. I got it with no timing covers no belt at all. I'm assuming it was bent valv...	15
	1995 Chevrolet Corvette 5.7L Hesitation VIN: 1G1YY32P9S Thanks for all the replies on this vette, got a ton of suggestions, many of you were right on the money with the opti-spark dist. being the failure. Didn't want to believe it after only approx. 3600 miles, but it was bad. Rotor would actually move independen...	42
	1995 Chevrolet Tahoe LS 5.7L Hesitation, Cuts out VIN: 1GNEK13K2S Dead head pressure on fuel pump is 36 psi, has wrong pump installed. Do not believe that pump is primary cause of problem. If o2 sensor unplugged vehicle runs better. Checked signal wire to o2 sensor, purple wire. Have good voltage. Replaced o2 sensor. Engine ... Trouble codes: 45 (Rich exhaust).	22
	2007 Chevrolet Tahoe LTZ 5.3L Unknown VIN: 1GNEK13057 well like everyone posted,the radio wiring was all messed up.wow. rewired with factory radio.starts and shuts off normal now.thanx again.don't see why it would act up intermittantly though.	14
	2008 Chevrolet HHR LT Panel 2.2L MIL Lamp on VIN: 3GCDA05D38 We could never get this HHR to act up, never reset any codes, and no driveability symptoms. Inspected harness pins at PCM and throttle body, no obvious faults were present, however the wiring at TB was "brittle", we replaced the TB connector with new Delco pa... Trouble codes: P2119 (TP closed performance), P2135 (TP sensor 1-2 correlation), P2176 (Minimum TPS not learned).	5
	2004 Ford Expedition XLS 5.4L codes instrument cluster module VIN: 1FMPU16L94 thanks for the input,guys this vehicle threw me a curve ball. after i asked my original question i found that very intermitently the vehicle wouldn't start. security light flashed set a b1602 invalid key read after a lot of searching around i found that the he...	4
	2006 Ford F-150 XLT 5.4L cylinder heads VIN: 1FTPW14V76 Got this Ford project done, the biggest problem we had was that on three of the plugs, the center electrode broke off also. So when we used the broken plug tool the electrode pushed thru thru the ground strap and broke it. Could not retrieve the pieces with va...	51
	2003 GMC Envoy SLT 4.2L abs VIN: 1GKDT13S13 frist off thank you all for help with this truck. And I seem to have offened some with my "no-data" comment. It is probly more my fault for my frustrations with alldata in the fact that I don't know how to navigate the sight as well as I should. Dan from wisco...	31
	2008 Honda Accord LX 2.4L MIL Lamp on VIN: 1HGCS11738 thanks for every one at iatn for the help on this one turned out to be key way on counter plates on back of cam that cam sensors use timing marks were correct but plates would shift when engine started special thanks to luis [...] for extra help on this Trouble codes: P0341 (Cam crank phase).	6
	2005 Hyundai Tiburon GS 2.0L MIL Lamp on VIN: KMHHM65D65 There are 5 links between the colored links on the chain, so you should have a total of 12 chain pins between the marks on the gears. Our links were not colored anymore, so we were going by all the conflicting info that is out there. Suggestions included check... Trouble codes: P0016 (cam/crank sensor correlation).	6
	1995 Jaguar XJS 4.0L temp sensor VIN: SAJNX2743S thank you everyone. after a bunch of testing I ended up adding a resistor to bring the gauge the halfway mark	9
	2002 Jeep Wrangler X 4.0L Sway Bar Link VIN: 1J4FA39S42 THANKS TO AL [...] WHO REPLIED TO MY REQUEST.I WAS ABLE TO FIND WHAT I NEEDED AT ROUGH COUNTRY IN TENNESEE.AFTER A COUPLE OF PHONE CALLS WE GOT EVERYTHING IN A COUPLE OF DAYS.THESE ARE GOOD SOURCES FOR THE FUTURE SO THANKS AGAIN FOR TAKING THE TIME TO HELP	8
	2005 Kia Amanti 3.5L Poor Idle Quality, Misfire VIN: KNALD12415 Thank you greatly for your help. Since the intake had to come off when performing a compression test, and since the customer was not aware of ever having had their injectors cleaned, we decided to start with a fuel injection cleaning. We are happy to report th... Trouble codes: P0300 (Random Misfire), P0303 (MIsfire cylinder 3), P0305 (Misfire cylinder 5).	9
	2007 Kia Optima LX 2.4L engine VIN: KNAGE123X7 Thanks everyone for the help. As suspected it comes out the bottom after the cradle is removed. Not the most intelligent engineering but it's out. Thanks again!	6
	2006 Land Rover Range Rover HSE 4.4L MIL Lamp on I ended up sending this land rover to guy I know who specializes in land rovers. I had called him and he said the 06's are prone to intake valves getting dirty with carbon. He recommended a good motorvac service. He said he does them three times and that fixes... Trouble codes: P2096, P2098.	10
	1995 Oldsmobile 88 Royale 3.8L Starting VIN: 1G3HN52K3S Well we told the customer that it need it a pcm but we still wating on an aproval. I guess he had an accdident and he in the hopital. I dont know if he is going to want to fix it or not. Thanks to everyone and their comments	25
	2007 Toyota Matrix XR 1.8L Misfire VIN: 1NAX567890 this veh is fix #3 injector leaking down & making that cylinder a little rich momentarily.we replace injector and drive it for 2 week all good thank you very much for the infor	24
	2001 Volkswagen Jetta GLX 2.8L #2 Injector VIN: 3VWTG69M11 thanks for all replies.it turns out the ecm was shutting down the injector.i had checked spark,it looked great.decided to try a different plug wire and its fixed.i did not think an 01 would shut down injector.i have had plenty of misfires with soaked plugs so ...	11
	2006 Volkswagen Passat 2.0T 2.0L Hesitation, Stall VIN: WVWAK73C26 Well, I FINALLY got the VW to act up while driving once. I was graphing the MAF, RPM, desired and actual throttle positions, and the MAF did not go up when given throttle from a stop. Throttle opened, MAF did NOT go up, and RPM dropped as it stalled. MAF did n... Trouble codes: P1281 (Cooling System Implausible Signal), P0513 (Incorrect Immobilizer Key), P0442 (EVAP system small leak).	6
	1998 Volvo S70 T5 2.3L Alternator VIN: YV1LS5375W I checked the connections from the battery to the fuse box - good, I checked the ground to the engine and the alternator - good, I tested the alternator - good, I checked for voltage between the alternator housing and the battery - none. I cleaned a small amou...	13

(Also Available: All, Asian, Chrysler, European, Ford, GM.)