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Prev Professional Automotive Repair Technical Discussions for August 24, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
1999 Audi A6 Quattro 2.8L right brake assmbly VIN: WAUBA24BXX
Hi; this car came in with the right front brake getting very hot after normal driving.We replaced the right caliper and brake hose with no changes.then we tried inspecting the brake line,it was o/k.We tried to determine if fluid pressure was being held in the ...
2008 BMW 750Li 4.8L Hesitation VIN: WBAHN83538
I don't have much diagnostic info on this car. I found the fault code (2DCF)at one time on the internet but now I can't find it again. Pretty sure it is for one of the Valvetronic motor circuits. No MIL. When you pull away from a stop, the car hesitates. After... Trouble codes: 2DCF
1999 Chevrolet K2500 Suburban 7.4L Cuts out VIN: 3GNGK26J9X
we have a 99 suburban 7.4 with an aftermarket super charger on it. cuts out very bad on accelleration . fuel pressure at idle is 48 psi . when it starts to cut out fuel pressure drops to about 20 psi . im thinking the fuel pump we put in 2 months ago might be ...
1999 Chevrolet Tracker 1.6L Speedometer VIN: 2CNBJ1862X
Would like to know if the speedometer on this vehicle can be recalibrated? It has oversize tires and the customer would like to get the speedometer reading correctly. Can a factory scan tool perform this, or are we looking at an aftermarket fix of some sort? C...
2004 Chevrolet Avalanche 1500 Z66 5.3L ignition VIN: 3GNEK12TX4
Starter sticking 2 or 3 sec after igition is released, only does it 2 or 3 times a day
2005 Chevrolet Uplander LT 3.5L ignition VIN: 1GNDV33L15
car got towed in late yestarday, complaint was didnt wanna start. checked the battery to make sure there's good voltage, made sure all grounds is good. then i made sure the security light goes off when key is in ignition. I have no communication to scan tool, ...
2005 Chevrolet Silverado 2500 HD 6.6L No Start, Stall VIN: 1GCHK23225
I have followed the flow chart for code p1626 and it called for replacing bcm, replaced and still has same symptom... crank-start for half-second then stall just like a vtd fuel disable... checked all powers and grounds at bcm and pcm. scoped class 2 data line... Trouble codes: P1626, P0675
2007 Chevrolet Silverado 2500 HD LT 6.6L Right Front Wheel Sensor VIN: 1GCHC23697
We have this 07 Silverado 2500HD that kicks out a C0040-01(right front wheel sensor shorted to battery).Have tried a new sensor to no avail.Have tried an OE wheel bearing to no avail.Tried shimming sensor to increase air gap to no avail.Loaded circuit with 12 ...
2007 Chrysler Pacifica Touring 4.0L MIL Lamp on VIN: 2A8GM68X27
I have smoke tested the system and found no leaks. I dropped the fuel tank and checked the transfer pump connector. I tested the purge valve operation and it is fine. I'm not sure how to test the ESIM. I did a smoke test at the EISM vent and it holds pressure.... Trouble codes: P0456
1992 Dodge D150 5.2L iac, tps map, sensor VIN: 1B7HE16Y5N
hey fellow iatners and heres my problem this week. i have a 92 dodge pick up 318 v-8, i have codes for the tps iac and map sensor all high voltage. pinned out harness from tps iac and map sensor to the ecm conn. to make sure no wires were burnt together or sho...
1996 Dodge Grand Caravan ES 3.8L wipers VIN: 1B4GP54L5T
I have a 1996 Dodge Grand Caravan with inoperative windshield wipers. I have tested the entire system and have determined the BCM is at fault. These BCM's are imprinted with the Vin number, and vehicle mileage. This van is also equipped with security. I know t...
2000 Dodge Neon ES 2.0L engine vibration VIN: 1B3ES46C6Y
Hi all, hope everyone is having a great weekend!! I have another brain twister.. I bought this neon and it needed a engine rebuild due to excessive crankshaft main bearing journal clearance, had a vibration at idle and worse in gear before the rebuild and afte...
2002 Dodge Intrepid SE 2.7L Hesitation, Misfire, MIL Lamp on VIN: 2B3HD46R12
thanks for any help the problem with this car is a bad hesitation when taking off. looked at misfire data shows miss on 2-4-6 cylinders. swapped front o2 no change! what am i missing? the new o2 sensors are bosch! thanks in advance! greg Trouble codes: P0152, P0132
2002 Dodge Grand Caravan Sport 3.3L No Start VIN: 1B4GP44312
Hello there, I have this Dodge Caravan. Came in for bad misfire and occasionaly dying. Scanned system and pulled injector curcuit codes, map sensor high voltage and map sensor low voltage codes. Did some poking around and grabbed the wiring harness rear that g...
2002 Dodge Grand Caravan Sport 3.3L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2B4GP443X2
Hey fellow techs, another Chysler to kick my butt. 2 in one month, lucky me lol. This one has no power, runs horrible, misfires all over the place. Seems to effect the whole engine, can't pinpoint one cylinder in particular - pulling wires and killing injector... Trouble codes: P0172 (Rich exhaust)
2003 Dodge Grand Caravan SE 3.3L No Start VIN: 1D4GP243X3
Van cranks and shuts down within 2 seconds, it does not theft system , ck. Vin with dealer. It has several codes p1696,po401,p1282,p1388, po645 . Ecm was sent off to be repair and it still has same codes Trouble codes: P1696 (Ee prom memory write denied), P1282 (Fuel relay circuit), P0888, P0645, P1388 (Auto shut down relay circuit)
2004 Dodge Ram 3500 Truck ST 5.9L Excessive Emissions VIN: 3D7MU48C04
This truck smokes at Idle in gear...engine tone changes when put in gear(sounds like overfueling but not to fuel knocking)...When shifted to park from any gear RPM jumps to 1700 and falls to proper Idle right away...I checked HPCR setpoint and HPCR accual...I ...
2008 Dodge Grand Caravan SXT 3.8L Lights,Horn,Wipers VIN: 1D8HN54P38
I have a strange one here. The customer complaint is the horn will sound, the lights will flash, the wipers will work, the door locks lock and unlock for about 2 to 5 min. at all times. She could be driving down the road, or 2a.m. while sleeping. Then it just ...
2005 Ford Explorer XLT 4.0L cylinder head VIN: 1FMZU73K45
Customer said car started idling roughly, just after church. He got home, and next day drove to another shop. Shop said it needed an engine, as the engine was locked up. He towed it to his house and asked for help on line. We turned the engine backwards and it...
2011 Ford Edge SEL 3.5L Srs light VIN: 2FMDK3JCXB
This car was in a front collision and I replaced driver air bag, clockspring, front sensors and driver seat belt. I test with scanner and all is fine and no trouble code but I still have an orange or yellow light of air bag at dash. How do I reset this light. ...
2003 GMC Yukon Denali 6.0L instrument cluster VIN: 1GKEK63U53
When the vehicle arrived, it had C0035 RR speed sensor short or open and C0455 Steering position sensor stored in ABS ECU. After inspection, found LF wheel bearing loose. Replaced hub/bearing with included speed sensor. Cleared all errors and road tested vehic...
1991 Honda Accord LX 2.2L spark VIN: 1HGCB7557M
hi guys sure hope you can help me. I got talked into putting a used engine in this old beast. When I checked a few months ago on the bad engine it started and ran. The engine I put in isnt the exact yr but all fit. What I noticed after I tried to start it was ...
2005 Jeep Grand Cherokee Laredo 3.7L rockers VIN: 1J4GR48K05
This jeep had a rocker arm fall out that i diagnosed and replaced 6 months ago. he got stuck in the mud i figured it was from valve float. Came in a weeek ago making bad noises. I pull the same valve cover and thr same rocker fell out and got wedged under the ...
2005 Mercedes-Benz CLK500 5.0L Stuck in park VIN: WDBTJ75J45
Car came in stuck in park. Randomly it will work properly but then will get stuck again. Replaced brake light switch and shifter, problem still present randomly. When it will not come out of park the "Check Engine" light and "ABS" light will be on. Could not g...
2007 Mini Cooper S 1.6L misfire, lean fuel trim VIN: WMWMF73537
I have checked timing, cam tool locks on, all pistons even. I tried to use crank holding tool, but that would not line up, I've read this happens with automatic flex plates, holes not lining up correctly. So I measure all the pistons at the same height as my c...
2003 Nissan Sentra SE-R Spec V 2.5L Switch
Does anyone know why this car keeps setting a p1706 pnp switch code it's a standard trans switch works when applied ?? Also strange is no dash lights but everything else works fine , note dimmer switch has power on both red / yellow and yellow / wires at the s...
2005 Nissan Frontier LE 4.0L serpentine belt tensioner VIN: 1N6AD06W35
Hi Nissan techs;I have this loyal customer that has had his Frontier to me three times for a belt squeal.The first time I replaced the belt and tensioner with Worldpac parts and sent him quietly on his way.One month later He's back with the same problem.This t...
2008 Saab 9-3 2.0T 2.0L Cup Holder VIN: YS3FB49Y38
Hello SAAB folks - I have been asked to replace the broken dashboard cup holder on this 08 Sport Sedan. My WIS info only goes up to 06, and the dash changes as of MY 07. But it looks like the NAV/Infotainment screen has to come out, and to get that out you fir...
2002 Saturn Vue 3.0L pc solenoid VIN: 5GZCZ63B02
Got called in on this 02 Vue that had the transmission replaced with a used unit. It is setting a P0962 code for pressure contol solenoid low current. I checked the wiring to the pc sol which checked good and the pc solenoid ohmed out at 5.5 ohms on both the u...
2001 Toyota Tundra 3.4L failed smog check
I am trying to set the monitors on this vehicle and it is not setting the 02 monitor and the evap monitor. It does not have any pending codes. vehicle failed smog check due to incomplete obd 2 monitors. by the way this vehicle has the v8 4.7 not the v6.
2003 Toyota Camry SE 2.4L balance shaft VIN: JTDBE32K43
customer brought this 2003 camry 2.4l into the shop with a complaint of a whirring sound at front of engine . upon further examination the timing chain and guides were quite worn. timing chain , oil pump chain and all guides and sprockets replaced . same sound...
2004 Toyota Tacoma Pre Runner 3.4L drive-line vibration VIN: 5TEGN92N84
Hello, Guys This Tacoma is driving us crazy -- The technician swore the truck had bad front wheel bearings, and the truck sure sounds like it does, but new bearings changed nothing. Tires were cupped, so we changed them out with a nice used set, but the noise...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Audi A4 1.8L Cuts out VIN: WAUGB28D5X
Thankyou to all who helped on this one. It was a combination of steps to get it calibrated. 1. disconnect battery and hook both cable ends together for 5 minutes. 2. verify that there are no codes in the system 3. using the appropriate scan tool recalibrate ... Trouble codes: P1545.
2005 Audi A6 Quattro 4.2L MMI display VIN: WAUDL94F15
Mr. Phil, You hit the nail on the head. After getting more familiar with our VCDS tool, I went into the applications option on the main menu and performed a optical bus diagnostics, (after making MMI operational, by disconnecting/reconnecting our sound sys. m...
2001 BMW X5 3.0i 3.0L Fuel gauge VIN: WBAFA53551
Thanks to all that replied. The feed back helped find the problem. It was the transfer hosing that runs on the top inner tank, it has a jet pump in it that was not gworking properly. We also replaced left side sending unit. Thanks again.
1991 Chevrolet C1500 Cheyenne 5.7L No Start VIN: 1GCDC14K4M
Thank you to everyone that replied and that tried to help. There have been lots of good ideas and things were mentioned that I wouldn't have otherwise thought of. Nothing has produced anything fruitful, so far, unfortunately. Sometime in the next week or two, ...
1996 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13W8T
Thank you for all of your info, turned out to be a valve problem, I lost sight of basics, thank you all for steering me in the right direction. Trouble codes: P0301.
1999 Chevrolet Corvette 5.7L ABS Pump Motor VIN: 1G1YY32G2X
I would like to thank all of you for your help. For cost reasons, decided to perform the ABS/Scan Tool bleed procedure at the dealer. So far, have not gotten the code or warning messages to reoccur. Though, it was quite intermittent before. If the problem reoc...
2002 Chevrolet Malibu 3.1L Gauges Compressor VIN: 1G1ND52J12
2003 Chevrolet Silverado 2500 HD 6.6L High fuel pressure VIN: 1GCHK23113
Thank you again for the help on fixing this truck. As that saying goes you can not fix stupid. Seth from NY, Jake from Alberta, Dan from Ontario and others assumed I had the lines mixed up. Carl from Pennsylvania suggested plugged return lines. I proceeded to ... Trouble codes: P0193 (Fuel rail pressure sensor ckt. signal high), P0380 (Glow plug heater ckt. problem).
2008 Chevrolet Avalanche LS 5.3L died out VIN: 3GNFK123X8
Yes, the fuel pump control module must have been the issue. It is mounted in a place that is not too safe, and the module had a hole knocked in it. It did have to be reprogrammed. Trouble codes: P0606, P069E.
2008 Chevrolet HHR SS 2.0L Poor Idle Quality, Surge VIN: 3GNCA63X98
Techs shared that 101% full is abnormal. I closely checked this and 2 other times it was 75-91% fuel level when the problem occured. So this seems to be ruled out. One reply said a fuel pump filter was clogged on a simular vehicle that caused this symptom. I n... Trouble codes: P0236 (Boost pressure sensor out of range).
2009 Chevrolet Silverado 1500 WT 4.3L fuel gauge VIN: 1GCEC19X09
I tried my snap-on scanner but couldn't get it to communicate. I think key is messed up got it off ebay. It's hell being a small shop. Anybody have a tech 2 for sale cheap. couldn't get a good reading with my volt meter either as it is a harbor freight special...
2001 Chrysler PT Cruiser 2.4L Power Steering VIN: 3C4FY4BBX1
Well we have fixed this . Not sure what did it? We ran a straight hose with container on suction side cracked pressure fittings both at rack and pump no pressure. Changed pump same problem? All of a sudden it started working? Not sure what happened. But glad i...
2003 Chrysler Sebring LXi 2.7L ASD relay, spark and injector control VIN: 1C3EL56R43
OK, major brain fart on this one... I think I just needed a good night sleep and a little time away from this car. Turns out fuse #24, even though it had grounds on both sides, was blown. I thought it was not being powered up, so out of pure desperation I st...
2005 Chrysler Town & Country (Van) Limited 3.8L rear air VIN: 2C8GP64L95
Thanks to all for the help. We flushed system again from front to rear and so far so good. I did find some debris in the rear expansion valve when we took it apart. Thanks again.
2007 Chrysler 300 (Car) C 5.7L Mechanical VIN: 2C3LA63H27
Well you were basically all right. When i tested the circuit loaded there was insufficient voltage. Customer opted to run a wire overlay instead of pulling the harness apart and all is now well. Thanks for all the help
1998 Dodge Avenger ES 2.5L loud lifter noise VIN: 4B3AU52N8W
Thanks for all the replies, but the head gasket was not the priblem, there was no piston to valve contact that I could see once I removed the heads. Turned out to be piston wrist pen slack, the engine had more wear than I though
2000 Dodge Grand Caravan SE 3.3L emission monitors VIN: 1B4GP44G7Y
Thank you to Thomas,Gilbert,Russel,John, After asking customer three times about if they are using e-85 gas they had said yes they are couldnt understand why.Found on Illinois website about 1998 -2000 mini vans with flex fuel use and suspending monitors open c...
2006 Dodge Ram 1500 Truck TRX4 5.7L Coolant VIN: 1D7HU18206
Well, this turned out to be quite the odyssey of discovery. This engine did not have any coolers where oil and coolant were next to each other nor did it have any type of cooler in the radiator...all coolers are independent and external of each other so we wer...
1997 Ford Taurus LX 3.0L Misfire, MIL Lamp on VIN: 1FALP53S3V
well,i feel like a total idiot...rhett,you nailed it. i know i double checked my plug wire routing but i had 5 and 6 switched. thanks to all the valuble help and ideas. lesson learned...dont over think a problem. Trouble codes: P0155 (B2S1 o2 heater circuit), P0161 (B2S2 o2 heater circuit), P0305 (cyl. 5 misfire), P0306 (cyl 6 misfire).
2001 Ford Expedition XLT 5.4L Misfire
This one is fixed. I disconnected the pcm connector and the Inj. connector and hooked my headlamp test light across the power and control circuits. the power side of the connector failed with the load on it. I replaced the inj. connector tested it again and it... Trouble codes: P0304.
2002 Ford Explorer XLT 4.0L Transfer case VIN: 1FMDU73E92
Thanks to everyone who replied. The module did indeed take care of this problem. Thanks again.
2006 Ford Focus ZX4 2.0L installation VIN: 1FAFP34N96
Rob from British Columbia was right. The tool is 205-370 or t97p-1175-a. It will pull axle in,also the bearing was in backwards.I only sand and polish rust and grime off, not metal.I also make sure I press the out side of bearing into spindle then hold center ...
2001 GMC Yukon XL 1500 SLT 5.3L fuel gauge VIN: 3GKFK16T11
the truck had two problems,the instrument cluster was bad,no sweep of fuel gauge,replaced cluster with used one and sent original in for repair.the other problem was a old spliced wire at fuel pump was the orange with black ground to pcm. that is ...
1998 Infiniti I30 3.0L MIL Lamp on VIN: JNKCA21A4W
thank you all for your help, first off i am a premium subscriber and i have looked at the other articles i just needed my boss to see the replies before spending close to 600 bucks on the coils. and to give me a confidence boost. any who just to give you guys ... Trouble codes: P1320.
2006 Kia Spectra EX 2.0L engine VIN: KNAFE12286
Car is not finished/fixed. I struck a deal with the owner and they signed the title over to me while I, in turn, gave them a good running, reliable transportation car as they were in dire need of wheels. This being a "pro bono" job, I was doing it in my spare ...
2004 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALME11454
We are still working on theis vehicle. It seems that the M62 bmw engine has problems with the vanos sealing rings causing the knock on start up and a persistant low knock at idle. We have replaced all the tensioners, rails and guides due to wear and severe cha... Trouble codes: P0021, P0011.
2008 Mercury Sable 3.5L Strut? VIN: 1MEHM40W38
New left strut took care of the noise. Apparently the part number has changed three times already. It comes with a new bumper and the threaded rod end of the piston is actually longer than the original (a new nut is needed as well). Thanks for the replies and ...
2001 Mitsubishi Eclipse Spyder GS 2.4L Misfire, MIL Lamp on VIN: 4A3AE45G71
Found it! Ignition coil for #1 and #4 is bad. Side of coil is bulged out and melted.That is why the injector driver is shutting down even before the "Check Engine" light flashes or set a code for those two cylinders(no misfire counters either). I was chasing t... Trouble codes: P0300 (random misfire).
2004 Mitsubishi Endeavor LS 3.8L rev limiter VIN: 4A4MN21S24
well after checking wires and pin connection, i still never found the problem, this was an auction car and the car lot didn't want to chance a computer which is what i think it is, but thanks everyone for the replies
2000 Nissan Quest GLE 3.3L Stall VIN: 4N2XN11T3Y
thank you david and clifford, i was looking at the datastream with short and long term fuel trims the iat temp, and the maf g/s, i found it really wierd the iat didnt go above 88 degrees f. and when it warmed up the maf g/s would shoot to 12 and would die when...
1999 Saturn SL2 1.9L Poor Idle Quality, Misfire VIN: 1G8ZK5273X
ok, after another set of eyes and more thoughts on this we noticed the ckp waveform had two very small humps in it after we blew up the picture, further inspection we finally pulled the ckp and stuck the ... Trouble codes: P0336 (cam position sensor performance).
2006 Subaru B9 Tribeca Limited 3.0L Cooling Systems VIN: 4S4WX82C66
Flushed out radiator manually with garden hose , now both sides of radiator feel warm, test drove vehicle and let idle for [...] time with no temp gauge climb. Gave vehicle back to customer to try for a while he reported back saying all is good now...
1997 Toyota Avalon XL 3.0L radio VIN: 4T1BF12BXV
Thank you ken from Maine for the help the unlock code worked just had to figure out how to enter the master code from a previous post.
2004 Toyota MR2 Spyder 1.8L Transmission ECU Communication VIN: JTDFR32024
Most responders said that this is a problem vehicle and as I found out the transmission ecm is not giving correct data. The customer will be returning in the fall for a new tcm to be installed and I will update this info at that time.
1987 Volkswagen Scirocco 16-Valve 1.8L Cooling Systems VIN: WVWCB0531H
Thank you to all who responded with good tips. My gut feeling was I had a circulation problem and it was just that--Randy from N.C. hit it on the head, the flow back to the coolant resevoir was too low, I ended up removing the factory restrictor in the small r...
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