Automotive Technicians Technical Discussion and Fixes for May 22, 2013

Join Now

Prev	Professional Automotive Repair Technical Discussions for May 22, 2013 International Automotive Technicians' Network (iATN) - Members Only	Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models

	Help Request	Answers
	2005 Audi A4 Quattro Avant 2.0L esp VIN: WAUKF68E55 This came in from a body shop with the traction control light on since a small front end collision. The accident wasn't bad enough to blow the airbags, just cosmetic and a/c condensor damage.i pulled codes 00493-esp sensor unit no signal/communication and 0182...	View
	2005 BMW 745Li 4.4L No Start VIN: WBAGN63565 Vehicle came in crank no start. No fuel pressure, and found fuel pump fuse #73 blown. Replaced fuse, and keeps on blowing. Unplugged fuel pump, and fuse #73 not blowing anymore. We have recommended a pump, and replaced #73 fuse. Fuse #73 not blowing anymore, b...	View
	2003 Chevrolet Monte Carlo LS 3.4L Poor Idle Quality, Hesitation VIN: 2G1WW12E43 This vehicle came in with a hesitation complaint. We noticed a collapsed vacuum line on the evap solenoid and that the ect was unplugged which account for the ect code. This vehicle will run great then all of a sudden the fuel trims go to -20 and it starts sur... Trouble codes: P0118, P0420, P1635	View
	2003 Chrysler PT Cruiser 2.4L Spark Knock VIN: 3C4FY48B53 Car brought in for mil. The car had a code Random Misfire and number 4 misfire. Test drove and found it would take a while to start and has spark knock. Fuel pump took care of the hard start but not the ping. Replaced the knock sensor without success. A month ...	View
	1996 Dodge Ram 1500 5.2L transmission governor pressure high VIN: 3B7HF13YXT greetins to all,this is my first post,generally I enjoy a challenge and figure things out on my own,but this one has me stumped.Truck came in 6 months ago with the typical front pump leak,customer opted to overhaul as the truck is a work truck and the trans ha...	View
	2006 Dodge Ram 1500 ST 4.7L Poor Fuel Economy VIN: 1D7HA18N86 Customer came in and stated his vehicle's mpg is not what it used to be. Vehicle runs good except the RPM gauge not accurate the needle showing below 300 rpm while the vehicle is running actually at 675. Customer also states that when the fuel gauge needle aro... Trouble codes: P0172 (Bank 1 Rich)	View
	2007 Dodge Charger 2.7L o2 sensor VIN: 2B3KA43R87 i have a 2007 dodge charger keeps setting o2 bank 2/1 slow response. has a new factory o2 sensor. every thing looks good at idle but put in gear and load it up and o2 reads rich but the computer does not try to compensate with the fuel trim. repaired exhaust l...	View
	1995 Ford F-350 Eddie Bauer 7.3L vacum assist VIN: 1FTJW35F0S need some brake experts help, this is one of our longtime customers, the symtom is that when you push the brake pedal 4-5 time with in 2 minutes, the pedal gets hard. we replaced the vacum pump, no help we replaced the booster, and the line(we eliminated the v...	View
	1998 Ford Explorer Eddie Bauer 4.0L Hesitation, Cuts out, MIL Lamp on VIN: 1FMZU34E1W Car was driven in. On test drive, verified pinging, and bucking/jerking. Car had 1/8 tank of fuel, filled with premium and drove again, bucking/jerking seemed to go away. Pinging very evident from 2000 rpm up. Below 2000 rpm car seems to drive normal, no hesit... Trouble codes: P0351, P0352, P0353	View
	1998 Ford Explorer Eddie Bauer 4.0L timing chain VIN: 1FMZU32E5W This truck came in with a rattling noise in the right rear cylinder head. We diagnosed the problem as the chain tensioner gone bad. Customer approved engine removal and all chains & tensioners replaced. After the work we started it up and it was quiet at first...	View
	2000 Ford Focus Sony Limited Edition 2.0L Canister Vent Valve VIN: 1FAFP3435Y Car came in with these two codes p0443 and p0455. So i made sure that the vapor management valve was working and with my scanner i can turn it on and off when i turn this valve on the car turns off, so im sure its working, when i did the smoke test the vent va...	View
	2000 Ford E-350 Econoline 5.4L No Start, Poor Idle Quality, Misfire VIN: 1FDWE35LXY Vehicle will not start will just crank and sputter for a second it will run barely on starting fluid. I Thought maybe i had the timing wrong so i reset it and still same problem. Changed fuelpump and filter truck had been sitting for three years apart Trouble codes: P0320, P0340	View
	2004 Ford Focus SE 2.0L MIL Lamp on VIN: 1FAHP34354 Hello everyone we had this one for a while about 3 month 1st time code p0171 , 2nd time it came back 1 month later p0171, 3rd 1 month later po171 , cust. Left it at first it was ok stft 4-6 ltft 1-3 let run for 1 hour drove it it was ok . Check it in the morni... Trouble codes: P2195 (Lean)	View
	1997 GMC Sonoma SLE 2.2L No Start VIN: 1GTCS1942V Vehicle came in with no start. Repaired wires that were tampered with during installation of propane system back to stock. Checked all power and grounds at pcm ok. No ignition pulse or injector pulse. can communicate with pcm, no codes retrieved.	View
	2004 GMC Sierra 1500 SLE 4.8L rAEDINESS mONITORS VIN: 2GTEC19V24 Having trouble running and keeping readiness monitors complete, once vehicle is turned off monitors go back to not ready. I suspect problem may be internal to pcm. This my first time seeing this vehicle. Info about problem last year was told to me by one of th...	View
	1996 Honda Accord LX 2.2L Compression VIN: 1HGCD5534T There is no compression on cylinder 4 1 2 and 3 are good head was checked for cracks and warpage and passed test. Did cylinder leak down test and found that with all 4 valves closed on 4 its leaking from the exhaust and cylinder 2. Thinking maybe rings washed ...	View
	2001 Honda Accord EX 2.3L No Start VIN: JHMCG566X1 This pig was towed in as a no start. First I checked for spark. It was very weak. I pulled the cap and put my low amp probe around the coil wire from the module. What I got was a pattern that was basically a square wave, straight up, across, then straight do...	View
	2007 Honda Odyssey LX 3.5L noise VIN: 5FNRL38297 i have an 07 honda odessey that was brought in for a rattle. the downsteam converter shield was loose and rusted. i replaced it with an oem shield. on a road the initial rattle was gone a new lighter rattle appeared. i reinspected the exhaurst shields particul...	View
	2008 Honda Civic EX 1.8L Low Tire Light Flashing VIN: 1HGFA16908 Hi Thanks for any insight anyone can shed on this? I have a Customer with a 2008 Honda Civic & I installed a New OEM Valve Stem Sensor Part#42753-TR3-A81. I can not get the Sensor to go into the Learn Mode!? I am using a Brand New $1600.00! Snap-On TPMS3 Too...	View
	2006 Hyundai Sonata GLS 3.3L Electronic VIN: 5NPEU46F86 This vehicle keeps setting p0717 and p0722. Replaced both, and codes still come back after a short road test. I cleaned the ground (G-11) behind the dash per the TSB. Is there anything else I should look for before I replace the ECM ?	View
	1997 Isuzu Trooper LS 3.2L Cyl. 5 VIN: JACDJ58V3V Thanks for reading. changed valve cover gaskets and plugs, Came back in after about a month with code P0305, swapped with coil from another cyl. with no luck. plug wet with fuel, so injector appears to be working.Lacking wiring diagram and pin out values for i...	View
	2000 Jaguar S-Type 3.0L dynamic stability VIN: SAJDA01C7Y Customer brought in for dynamic stability message on dash. Code stored is a C1287 "active booster release switch" circuit fault. There looks to be 2 switches for the booster. 1 At the pedal side & 1 in the booster. These switches appear to available with the ...	View
	1995 Jeep Grand Cherokee Limited 5.2L Electric Window VIN: 1J4GZ78Y1S I replaced the motor and regulator.it lasted for 6 months.it came back again,i put another napa motor and regulator in it. This time the motor would only go down not up.so i ordered another one. This time the motor attempted to move and stopped.i then ordered ...	View
	1998 Jeep Cherokee Limited 2.5L No Start, Cuts out, Stall VIN: 1J4FT28P1W This vehicle stalls when ac is commanded on or when the center mode knob is switched from the off position. sometimes the vehicle will idle down hard and almost cut off, most of the time will stall. the ac clutch is not connected and the compressor is not in t...	View
	2003 Land Rover Freelander SE 2.5L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire VIN: SALNY22233 Vehicle came with misfire on cold. Checked and it does misfire on cold and still runs poorly when heats up. It runs rich. Replaced oxygen sensor. No change. If I clear the codes and test drive it, p1472 comes back. Any help. Trouble codes: P0172, P1472	View
	2002 Lexus ES300 3.0L hard steering VIN: JTHBF30G32 hey guys weve completed two full rack and pinion installs and changed the power steering pump and the car still steers hard both left and right i beleive we may need to do a zero point calibration any ideas guys? weve bled the system thouroughly each time and ...	View
	2004 Lexus RX330 3.3L MIL Lamp on VIN: JTJGA31U14 Im having difficulty narrowing this problem down, it occurs on every roadtest. When monitoring pin 16 (blk/yel) and pin 17 (blk) at pcm I have .56 volts in park, 4 volts in R, .56 volts in N, 4 or so volts in D-4, Bat + in D3 (every time), and about 4 volts in... Trouble codes: P0705 (Transmission range sensor circuit malfunction)	View
	1991 Lincoln Mark VII LSC 5.0L Brake bleeding/hard pedal VIN: 1LNCM93E2M We have a 1991 Lincoln Mark VII LSC with a brake problem. The initial concern was a high/hard brake pedal, and no power assist. This vehicle has a electric brake booster, as opposed to a vacuum booster. The hydraulic pump for the booster was not coming on, and...	View
	1998 Lincoln Town Car 4.6L Oil Pressure Light VIN: 1LNFM81W5W For all Ford techs, this lincoln came in with a concern of oil on the drive way, installed new aftermarket oil pressure switch. heres where it gets weird, the light turns on with pressure but with the vehicle off the light turns off as well. tried three differ...	View
	2004 Maserati Spyder GT 4.2L Starting VIN: ZAMBC38AX4 Hi guys this is a friend car I replaced a right side window regulator I drove the car to work and part it I came out the vehicle won't crank and I observe a warning indicator on dash flashing I tow the vehicle to my shop I jump the starter the vehicle start bu...	View
	2002 Mazda MPV ES 3.0L milage on dash VIN: JM3LW28A82 this mazda came in on tow truck with bad transmisson. customer brought in another transmission so we replaced it. this is what i dont no the odometer and grear slecter light doesnt light up except when u turn the key to acc or off then it does im wondering if ...	View
	2005 Mazda 6 S 3.0L engine VIN: 1YVHP81D15 Hey guys so here's my dilemma. My friend bought the car few years ago and was running fine till last year started to burn oil! Oil was missing enough that the chain tensioner lost tension and engine gave up! Thanks to Ford which makes the engine for the Mazda ...	View
	1972 Mercedes-Benz 350SL 4.5L Misfire, Poor Fuel Economy VIN: 1070441200 auto came in running bad. change points plugs cap and rotot. als wires. still runs bad. seems like its ignition,but would not bet on it. car is like new. I read where theres point for the injectors. I thought it said was in dist. so I figured they were under p...	View
	1990 Mercedes-Benz 300E 2.6 2.6L Cuts out VIN: WDBEA26D4L this car sat for 4 years, was towed to my shop with instructions to get running again. originally found blown 10 a fuse in ovp relay, and 1 dead fuel pump. drained old varnished gas, installed 1 new pump and fresh fuel filter. car came to life. idled about 10 ...	View
	2000 Mercedes-Benz S430 4.3L Stall VIN: WDBNG70J0Y We have a S430 that instantly trips a P0100(mass air code).We of course replaced with Bosch unit.Code comes back instantly after clearing and starting vehicle.Customer stated that another shop replaced mass air 2 years ago twice with in days.From what I could ... Trouble codes: P0100	View
	2001 Mercedes-Benz S500 Guard 5.0L Suspension VIN: WDBNG75J71 Vehicle came in with the front end dropping over night. Attempted to locate leak and could not locate external leak. Replaced front struts with no change. Removed fill line from compressor and there is airflow and front end drops with in 5 min. The question is...	View
	2002 Mercedes-Benz CLK430 4.3L No interior dash lights or counsle lights VIN: WDBLJ70G82 I have a customer who recently purchased a 2002 Clk 430 on ebay when customer received car the vehicles radio said code and the interior dash lights do no work IE the instrument cluster Speedo, gas, rpms etc, the heater controls do not light up, the center cou...	View
	2003 Mini Cooper 1.6L Tpms VIN: WMWRC33473 This vehicle is new to my shop came in because tpms light was on. I did the relearn and would not take has code 5e5c initialize runflat in abs modual also code seems to be linked to dds button fault.this code will not reset and cannot do relearn still... I don...	View
	2006 Nissan Xterra X 4.0L timing chain VIN: 5N1AN08W96 Hello, I have this vehicle that I will be doing the timing chain tensioner shoes on tomorrow. I am following the TSB and ordered all the parts, but, I cannot find the tensioner tool to press on the new tensioner shoes. I called techmate and asked the dealer. I...	View
	2007 Nissan Altima S 2.5L Bcm VIN: 1N4AL21E37 bcm ,theft ligh. key programming	View
	2010 Pontiac G6 2.4L Rotors VIN: 1G2ZA5E06A HELPPPPP!!!.The problem that is causing me to pull out my hair today is this 2010 Pontiac G6.This vehicle belongs to the postal service for whom we do alot of maintance for.We did a brake job about 3000 miles back and has since come back with a very odd and in...	View
	2001 Saturn SC1 1.9L Monitors VIN: 1G8ZP12811 Car came to me with mil on.3 codes found for #1 cylinder misfire,secondary air injection system malfunction,and idle higher than expected.smoke test revealed major leak at intake gasket,causing the misfire and high idle condition.replaced gasket,car running re...	View
	2001 Subaru Outback VDC 3.0L Water Pump VIN: 4S3BH89691 Hey group i need some input this h6 subi. It gets hot when driving uphill and only uphill. At 221 dgr. The vdc off light comes on and stays on til temp goes down around 217 dgr. I performed combustion leak test and found no h/c in the coolant.the fans are runn...	View
	2007 Subaru Impreza WRX STI 2.5L Clutch VIN: JF1GD76687 Hello. We need help here. 2007 subaru impreza wrx. Came in with a slipping clutch. The customer supplied his own high performance clutch. Fit in nice. Now we cant shift. Slave cylinder throw is good but clitch wont release so we can drive. Any ideas?	View
	1995 Volkswagen Passat GLX 2.8L front windows VIN: WVWFE83A3S This VW front door electric windows do not operate from the driver door switch. The right front window does operate up and down from the right door switch. The windows can be raised and lowered with the driver's outside door lock mechanism as normal except tha...	View
	1998 Volkswagen Golf GL 2.0L No Start VIN: 3VWFA81H1W After last coil replacement, misfires went away... for a while. Started returning, mostly at idle. Ultimately the car died. Towed in. Spark plugs burned up to over .050" gap. Cap shows signs of burning, black residue on inside and inbetween orange and black pi...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1985 BMW 635CSi 3.5L Front calipers VIN: WBAEC7401F Thanks for all the help and suggestions, IATN members are the best. This one appears to be fixed. A new master cylinder seems to have cured the dragging front brakes. Just took it for a 6 mile or so road test, came back and checked the front wheels and they ...	18
	1999 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K0X Hello and thanks to all who responded. Ultimately, as is usually the case once you go back to the KISS rule, we had a bad FTP sensor. When the used tank was put in, the pieces were supposedly transferred. Not. Once I took a breath, the FTP reading never change... Trouble codes: P0440.	10
	2004 Cadillac DeVille 4.6L Left Front Pretensioner VIN: 1G6KD54Y34 SORRY FOR THE DELAY IN CLOSING.THE CAR HUSTLER TOOK HIS SWEET TIME GETTING THE CRASH SENSOR TO ME,AND THE WIRE FOR THE PRETENSIONER WAS BROKEN INSIDE INSULATION.ALL IS WELL IN CADDYLAND FOR NOW.THANKS TO ALL!	13
	1987 Chevrolet Corvette 5.7L Orifice VIN: 1G1YY2187H Thanks again for the feedback. I found no debris inside the tube so I tried heating the tube. This didn't work either. I was still certain the seat that kept the orifice from going in too far was of too small diameter. I trimmed the flat area beside the scr...	10
	2004 Chevrolet Silverado 3500 LT 6.6L No Start, Surge, Misfire VIN: 1GCJK33264 Thank you to all that replied and sorry for the delay in closing this request. I found the FRP sol. harness damaged where the previous shop had mis-routed the harness, and the FRP sensor wiring cut and left dangling. After these repairs the FRP would at leas... Trouble codes: P0045, P0090.	7
	2005 Chevrolet Trailblazer LS 4.2L Blower motor electronic resistor block VIN: 1GNET16SX5 Sorry to have taken so long to post this, I had to wait for the car to come back. I'd like to thank all of you for your replies, most attributed the failure to excessive currant draw from the blower motor. This was the cause. The new blower motor had a stea...	19
	2002 Dodge Dakota Sport 4.7L electronic 4x4 VIN: 1B7HG38N62 well this one is fixed and kyle was right on. i could not communicate with the bcm(central timing module),so i checked all my power and grounds to it,everything was ok. replaced bcm, everything works great. the one thing i don"t understand is the bcm was doing...	5
	1996 Ford E-150 Econoline 5.8L MIL Lamp on VIN: 1FDEE14HXT been a week plus now, so caling it fixed. thanks all for the wiring info it was right on. heres one Reply 1Report Abuseok John from Utah May 8, 2013 6:17:09 PMalldata does have it, but just in case here you are; red is the power feed for the heater, red/whit...	5
	2004 Ford Explorer NBX 4.6L Transfer case,differential VIN: 1FMZU73W84 Thanks for all of your replies.After looking at the tire and talking to to the customer ,he didn't notice the problem until he put on the spare tire.I measured the tires and there was 2.50 difference in the rear tires.Put on a new set and its fixed.Thanks to a...	5
	2004 Ford Freestar SEL 4.2L MIL Lamp on VIN: 2FMDA52294 Thanks for all the help. Replacing the sensor was the fix. Scoping the signal wire from the sensor itself showed the same spike in voltage as the PID showed in the data stream. A small glitch, but enough to set the code. Peace be with you! Trouble codes: P0193 (Fuel Rail Pressure A Circuit High Input).	8
	2005 Ford E-450 Super Duty 6.0L Degas tank & Radiator VIN: 1FDXE45P55 Thank all 20 of you that have replied to my help request. I guess this is the first one of these 6.0's that has ruptured its oil cooler and puked its guts into the engine coolant. What a freaking mess. We went with a BulletProof brand EGR cooler and a new OEM ...	20
	2002 Hyundai Santa Fe GLS 2.7L No power VIN: KM8SC13D92 THANKS FOR ALL THE REPLIES. I FOUND THE MAF SENSOR TO BE THE FAULT. THE FUEL TRIMS WE STUCK.	10
	2004 Mazda 3 S 2.3L cv axle VIN: JM1BK34364 well after my third set of axles . a set of factory mazda remans fixed the vibration. thanks for all your suggestions.	16
	2005 Nissan Altima S 2.5L No Start VIN: 1N4AL11D35 Thank you all who took their valuable time to help me.I had changed the pcm then after the engine started I check the ground strap near the chassis it was broken I fixed right of way but it was too late, already burnt the new pcm I changed the pcm again was lu...	5
	2006 Saab 9-3 2.0T 2.0L master cylinder VIN: YS3FD45Y36 Customer refused additional diagnosis. This car definitely is different than all other sport sedans that I have experienced. Are the brakes less than they should be? To me it is very unnerving to drive this car. In other sport sedans, I do feel the brake pedal...	9
	2007 Saturn Ion-2 2.2L Cuts out, MIL Lamp on VIN: 1G8AJ55F77 Two weeks has gone by with no problems. This does not necessarily mean that this is fixed as sometimes it takes 6 weeks for this thing to take a fit. I will repost as necessary. Thank you for your replies. Trouble codes: P2127 (App sensor ckt 2 low volt).	3
	2002 Volvo S60 2.4L Poor Idle Quality, MIL Lamp on VIN: YV1RS61R22 Thanks guys for very helpful answers. We checked for unmetered air as Peter suggested,but can find any other leak,for 13 inches of water is a bit low ,but I think it should not caused the too high rpm at idle. It make sense to me that most of you mention about... Trouble codes: P0507 (Idle control system higher than expected), P2177 (System too lean off idle Bank1).	8
	2007 Volvo XC90 3.2 3.2L L.R Window VIN: YV1CT85567 Thanks to Bruce we traced the problem to REM unit [£570] but the customer has decided aganist having it replaced this time. I have personally thanked Bruce for taking the time to help us. IATN have a great team Techs who rise to the challenge to help other m...	1

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