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Prev Professional Automotive Repair Technical Discussions for October 17, 2011
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2003 Audi A4 1.8L revese engagemet VIN: WAVAC48H83
After installing reman unit vehicle has a harsh reverse engagement at times. First time you put it in reverse it is ok, after going into drive or park, harsh enegement. We coded tcm w/ a Launch scanner. Coded tcm to 01001 per Mitchell. Looking at basic setting...
2004 BMW 745Li 4.4L Hesitation, MIL Lamp on VIN: 346DS50963
after engine repairs faults 27bb&2731 will not clear until engine warmed up,recked basic timming many times .it is correct,swaped vanos solinoids & cam sensors to bank 1 to bank 2(note faults on bank 1 only,bank 2 fault free)replaced bank 1 exaust vanos contro... Trouble codes: 27BB, 2731 (intake cam position)
2006 Buick Terraza CX 3.5L cruise control VIN: 5GADV23L66
the cruise works only while there is an abs fault, and the abs is dissabled, the stop lamp voltage does not change between the two conditions (2.5vdc engine running pedal released and charging voltage depressed 14vdc, and the brake lights work properly). Corre...
2007 Buick Lucerne CXL 3.8L ABS Light VIN: 1G4HD57236
We are dealing with a ABS light that comes on about once a week on this Buick. It sets a code C0045 LR wheel irratic. It will go out when the car is shut off and store in history on the scanner.We have tried both rear bearings and a new harness.We have never h...
2004 Cadillac Escalade 6.0L Oil Pressure VIN: 1GYEK63N43
Ok I have drove myself and shop crazy on this one. There is Oil Pressure at the filter with the oil filter pressure adapter from GM. At the sending unit plug there is only 2.5 psi on warm start and about 5 psi on cold start. According to the lubrication flow s...
1974 Chevrolet Corvette 7.4L brake light on when pressing brakes VIN: 1Z37Z4S421
hello guys i have a 74 chevy corvette 454 stingray for the brake light on cluster on. after checking the vehicle found that the proportioning valve was leaking and that was my brake light, but now that i replaced it and bled all corners the brake light still c...
1985 Chevrolet S10 Tahoe 2.8L Poor Idle Quality, Flooding VIN: 1GCDT14B8F
Truck ran poorly with no accelerator pump performance, vacuum leak at brake booster, weak choke heater, and fuel pump only capable of 12" hg and 4 psi. Installed new booster, fuel pump and filter, overhaul carburetor with Hygrade service kit. Now the truck wo...
1994 Chevrolet S10 LS 4.3L High idle when cold VIN: 1GCDT19W8R
Vehicle has high idle when started cold. Indicating 1200 to 1300 RPM when started in cold condition. When started in warm or hot condition, problem does not exist. The high idle is only found when the vehicle is started in the morning or in the evening. Owner...
1997 Chevrolet Express 1500 5.7L Hesitation, MIL Lamp on VIN: 1GBFG15RXV
Came in for check engine light.customer was out of town when the light came on.it was diagnosed as needing fuel pressure regulator.after repairs light came back on within 20 miles so customer drove it home and here it is.fuel pressure running is at 49 psi 58 k... Trouble codes: P0171 (Fuel trim lean), P0174 (Fuel trim lean)
2004 Chevrolet Silverado 1500 5.3L Right rear axle seal VIN: 1GCEK19T04
Hello everyone. The mechanic who originally replaced the rear axle seals back in January 2011 no longer works here, so I'm looking at this for the first time. This is a work truck and it failed the State Inspection for leaking rear axle seal on the right side....
2005 Chevrolet Equinox LT 3.4L MIL Lamp on VIN: 2CNDL23F35
We thought we had it fixed went two weeks than light came back on with same code p1133 we did a smoke test before and did repair vac leaks at egr base gasket and pcv pipe to valve. Trouble codes: P1133 (Insufficiant switching)
2004 Chrysler Sebring 2.4L Right Turn Sinal VIN: 1C3EL46X84
When customer uses right turn signal the flasher relay buzzes and the right turn signals are inoperative but left turn signal flashes fine. Just some input on this before i buy electrical part that i can't return
1998 Dodge Avenger 2.5L No Start VIN: 4B3AU42N2X
car came in and was not firing replaced distributor and has fire and fuel and still no start.and no codes.checked compression on every cylinder and all were 120psi any help would be welcomed
2001 Dodge Ram 3500 Van 5.9L No Start VIN: 2B7LB31Z41
Looking for some help with this van.Problem is no start. We get the no bus signal in the odometer,no comm with scanner. We have 5 volt ref at all sensors. we have unplugged everything we can put our fingers on to no avail. power and grounds are there at the pc...
2001 Dodge Intrepid ES 2.7L Mechanical VIN: 2B3HD46R1H
Recently replaced primary timing chain, tensioner, and chain guides. To repair a extreme timing chain noise due to a failed tensioner. Engine was very sludged up due to poor maintence. Timing chain noise is gone. But now when engine is warm at idle has a small...
2006 Dodge Sprinter 3500 2.7L No Start, MIL Lamp on VIN: WDXPD944X6
After sitting for about 8-10 months, but being started and run parked every 1-2 months, the van was started and there was a notice of heat coming from the vents. Under the hood they found that rats had been eating up the insulation/matting. A month or two late... Trouble codes: P0087
1998 Ford Expedition XLT 4.6L Loss of power VIN: 1FMRU18W1W
Sudden power loss & check engine light comes on intermitent ( twice in 2 months ). I know that the fail safe is causing the power loss but the vehicle is not overheating & scanning the coolant sensors show them close together. Cannot duplicate problem. Vehicle... Trouble codes: P1285 (Cylinder head overheat), P1299 (Fail safe stradegy active)
2001 Ford F-150 XL 4.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2FTZX17241
This high mileage truck came in and the plugs were fried, wires were brittle and it had stored a #3 cylinder misfire code. we replaced sparkplugs and wires. truck ran well and check engine did not come back on. client took truck and drove 25miles, code returne... Trouble codes: 0303 (cyl3 misfire)
2002 Ford F-250 Super Duty XL 6.8L Misfire VIN: 1FTNX21S22
I got into this truck and after a lot of tests we pulled the drivers side head and sent it to machine shop. Found one valve was not seating. He touched the valve and truck seemed to run good for 30 days. Customer does not use this every day but it seemed ok fo... Trouble codes: P1000
2003 Ford Windstar LX 3.8L MIL Lamp on VIN: 2FMDA524X2
Hi ford techs i have a good one here.car came in p1405 code.car runs very good,reset engine light and test drive it first engine light came on after 2 miles,i put vacuum pump to egr and car stalls out when i apply vacuum to it.i did duty cycle test with scanne... Trouble codes: P1405 (Upstrem dpfe sensor clugged or disconnected)
2004 Ford Crown Victoria Police Interceptor 4.6L MIL Lamp on VIN: 2FAFP71W54
This has had several shorts found when installing a pcm it use to last 3 min. now after repairing wiring and fuel pump and fuel module it lasts about 45 min. than pcm I'm assuming is shorting out all wiring checked ran with good pcm monitor circuits but after ...
2005 Ford Expedition XLT 5.4L MIL Lamp on VIN: 1FMPU15545
Hello guys, I'm hoping to get some help from anyone familiar with these engines and this particular problem. This vehicle came in with code P0011. We flushed engine oil and changed oil, twice, with no success. Code returned. The tech then changed both VCT sole... Trouble codes: P0022 (Intake cam timing overadvanced bank 2), P0011 (Intake cam timing overadvanced bank1)
2008 Ford Edge Limited 3.5L Glass VIN: 2FMDK39CD8
thanks in advance for any help, my problem today is the front sunroof won't close it gets about a foot from closing and just stops. My scan tool doesn't offer a sunroof module option but I have no codes in any other module. I have taken the headliner out and r...
2007 GMC Acadia SLE 3.6L No Start VIN: 1GKEV33757
Intermitently vehicle will have a security light with a code U0168 (loss communication with IPC/security), but it starts and runs, However if you put the key in the door and lock and unlock it to try and clear the code then it won't start. (customer finally to... Trouble codes: U0168
2003 Honda Pilot EX 3.5L Radio VIN: 2HKYF18553
MY PILOTīS 2003 RADIO SERIAL NUMBER IS [...].I need the radio code please.Thank you
2006 Honda Accord Hybrid 3.0L compressor VIN: JHMCN36466
Good morning all,i know the answer to this but i just want some feedback.i know there is a forum,but i was hoping someone else has been here.this car came in this a.m.,customer stated he hears a noise only when the a/c is on.HE does,it is coming from the a/c c...
1999 Hyundai Sonata GLS 2.5L Hesitation VIN: KMHWF35V4X
We checked timing belt alignment and this is okay. The customer says the car lurches, which it does. No power, pops back at times through intake manifold. We found the OBDII scan tool MAF reads .001 gms/sec and on genysis MAF reads, 24 gms/hour. Not sure if th...
2004 Infiniti G35 3.5L power window
A customer came in with the power window motor in his hand for me to test. He tried to be a "do it yourselfer" untill he saw the price for the motor.I checked my alldata and the wiring diagrams are not very helpful.there is two larger wires(blue and blue/white...
2006 Jeep Commander 3.7L Occasional no start, all indicators lights on. VIN: 1J8HG48K66
Vehicle came in just purchased from auction so customer has no history on vehicle. All indicator lights illumonated on dash, Check Engine, Brake, ABS, AirBag, etc.. Also blinkers, wipers, windows and door unlock does not work. Occasionally the car will not sta...
2003 Kia Sorento EX 3.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: KNDJD73333
I have ensured the timing marks are good and also replaced the negative battery terminal connector since it was loose on the vehicle. Now, I checked the side of the motor where the misfires are so that I can ensure there is nothing wrong with that catalytic, ... Trouble codes: P0300 (Random Engine Misfire), P0302 (Cylinder 2 misfire), P0304 (Cylinder 4 misfire), P0306 (Cylinder 6 misfire)
2003 Lincoln LS 3.0L Misfire VIN: 1LNHM86SX3
well guys thanks in advance on this one. It really has me stumped.This car came in with a solid miss all the time and code 352 [coil circut].We replaced plugs and coil #2,valve cover gaskets.Now when vehicle runs in drive miss is present.Seems to be gone cruis... Trouble codes: 352 (coil circut)
1991 Mercedes-Benz 300SL 3.0L Excessive Emissions, No Start, Poor Idle Quality, Surge, Cuts out VIN: WDBFA61E3M
Hi there, this is my first post and thank you in advance for any replies. This is a 129 with a 104. First of all car would hardly run when it came in, replaced timing cover due to hole assuring timing was correct(holes in intake and exhaust cam match cylinder ... Trouble codes: 18 (Current to idle speed air valve y6 impausible), 22 (Oxygen sensor heater voltage implausible), 27 (Data exchange between cfi control module n3and ignition control module n1/3)
2008 Mercedes-Benz C350 3.5L no crank no start no interior gauges or lights VIN: WDDGF56X18
Good morning everyone I need help with this 1 I am 2008 mercedes benz c class just 350 a no crank no start nothing in the interior works no dash lights no p*** no power windows no radio no door chime no power sunroof I checked of uses of seeing if you could no...
2000 Mercury Villager Estate 3.3L Poor Idle Quality, Surge VIN: 4M2XW14TXY
Vehicle got towed to our shop and was running very poor,had a bad misfire on all cylinders, after diagnosis we found a bad distributor,someone has already done tune up on it previously,we changed the distributor and timed it and it still had a light miss and a...
1999 Nissan Maxima SE 3.0L compressor VIN: JN1CA21A9X
OK. Master Missan Techs, I think i already have my answer but i want to see if there are any shortcuts or tricks of the trade to confirm my diagnosis. Long story short. Friend's car has a bad compressor bearing that threw the belt. Replaced just the clutch be...
2005 Nissan Altima S 2.5L MIL Lamp on VIN: 1N4AL11D35
replaceed converter twice for car lot on this altima. used aftermarket o.e. type manifold cats. po 420 returned. tried new o2 sensors. any advise other than new dealer cat?? thanks in advance. Trouble codes: 420 (cat eff code)
1972 Oldsmobile Cutlass 5.7L signals VIN: 3J57K2Z105
Greetings fellow techs. Hoping somebody out there may have a wiring schematic for signal light switch connector under steering column. A jumper harness has been installed between the two connectors and the wires were out of the connector on the column side. I ...
1993 Saab 900 Turbo 2.0L Coolant Leak VIN: YS3FD49YX6
This car came to us with the complaint of the coolant reservoir going empty every 2 or 3 days. The car is only driven about 8 miles a day round trip to work. We have pressure tested the cooling system with no leaks found. We added a flourescent dye to the cool...
2001 Saab 9-5 SE 3.0L Piston VIN: YS3ED48E31
We just removed this engine to replace noisy timing chains, and since its a turbo, we took off the oil pan to clean the oil pump screen. We found a mall piece of # 4 piston skirt in the oil pan. We cant see how it happened or why it happened. It does not seem ...
2000 Toyota Land Cruiser 4.7L drivetrain VIN: JT3HT05J6Y
Hello Toyota Techs., I have a 2000 Landcruiser that clunks heavily when shifting between Drive & Reverse with foot on brake HARD. Noise audibly loudest at Front Diff./Drive Axle area. Noticed Front drive shaft seems to turn further than the rear drive shaft, r...
2005 Toyota Corolla S 1.8L Jerking VIN: 1NXBR32E75
Here is a Toyota thats taking us for a ride, customer's complaint was for a jerking/shaking when driving mostly when on the streets, had to stay driving at a constant speed to make it act up, and the check engine light was on. Scanned it and found the code P00... Trouble codes: P0016 (cam crank position correlation)
1999 Volkswagen Passat GLS 1.8L Cuts out VIN: WVWAA63B4X
This car came to our Vehicle Donation Program as a start and then stall. The donor reported a timing issue and that the belt and water pump were done in 2010. When I first tried to start it. The engine ran very well for a few seconds and then quit. With more a... Trouble codes: 16684 (Random /mulitple miss P0300), 16687 (p0303), 16688 (p0204)
2001 Volkswagen Passat GLS 1.8L Interior Lights VIN: WVWPD63B31
Looking for help in diagnosing interior lights inop. None of the interior light work, including vanity mirrors, glove-box light. Checked all fuses (that I could find). Checked for power at center dome light switch, none present. Un-buried comfort control modul...
2002 Volkswagen Golf GL 1.9L Starting VIN: 9BWGP21J22
Timing belt was broken all valve lifters are changed and put the new timing belt after nostart same time we change new fuel injector nostart after we spray quick start staring but didnt drive continiue we spray eng running we check the timing and fine idont pl...
2003 Volkswagen Beetle GL 2.0L crankseal VIN: 3VWCK21Y13
long story but goes like this.. came in w/ broken waterpump impeller. replaced waterpump, seals and belt. all very routine. came back two weeks later w/water pump leaking, re-checked belt tension, no problems found, performed second block test, results negativ...
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWMD63823
Customer brought car in with complaint of running poorly, almost shutting off and flashing check engine light. I pulled the codes and with the 0171 and misfires on all cylinders, I sort of ruled out one or two bad coils. It also had code 0507 but there wasn't... Trouble codes: P0171, P0300, P0301, P0302, P0303, P0304

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW 525i 2.5L Excessive Emissions, Hesitation, Misfire, MIL Lamp on VIN: WBADT43431
A lot of great replies. Customer picked up car and took to CarMax to sell. They didn't accept offer and left to come back for repair. The vehicle quit smoking shortly after, CEL went off, passed emissions, and has been running good since. Had vehicle back ...
2003 BMW X5 4.4i 4.4L Steering Wheel
well we havent seen the vehicle back yet but they will have it in soon for maintenance. I will check those hoses I think that may be the issue. We did check the engine and trans mounts when we felt the vibration but it isnt all the time and like I said they ch...
1998 Dodge Ram 3500 5.9L No Start VIN: 1B7MC336XW
customer towed truck to the dealer and had the pcm flashed thanks for everyones help Trouble codes: 1692 (no pcm output).
2001 Dodge Dakota SLT 4.7L seat belt circuit VIN: 1B7GG2AN21
thanks so much for all the help this one is fixed i ohmed everything like was said and found the abs module to be bad.thanks again
2003 Dodge Ram 1500 SLT 4.7L No Start VIN: 1D7HU18N73
several replies. Most mentioned FCM front control module & corrosion under fuse relay box. Replaced the FCM with used one. That got to truck back to runnibg with original problem of air bag , abs & a/c issues. Check of wiring diagram shows those circuits are...
2004 Dodge Intrepid SE 2.7L No Start VIN: R34H658712
Turns out that it is a cam/crank sensor sync issue. I knew about the difference between the SBEC and the NGC controllers but I was unaware of the JTEC system (Thank you Larry from Texas). I had disconnected the cam sensor and tried to start it but I must not ...
1999 Ford Ranger XL 3.0L No Start, Stall VIN: 1FTYR14UOX
Oh boy. Talk about embarassing. It turned out to be the maf. Thought i had tried disconnecting and starting but apparently not. Sorry. Started and ran while disconnected but as soon as plugged in vehicle would stall. Cant believe i missed that.
2002 Ford Windstar SEL 3.8L noise VIN: 2FMZA53422
hey guys, sorry this has taken so long. i've been messing with this thing on and of for what seems like forever. customer decided to live with the noise as the system is operating and no codes are being set. my guess is that there's a restriction somewhere in ...
2002 Ford Mustang 3.8L input bearing retainer VIN: 1FAFP40452
Sorry for the wait on this one. I talked to the customer and gave him the option on wether to stake the race or leave it. The general consensus was that this is normal for this transmission. I had a phone call from Rick (I think, I didn't write his name dow...
2003 Ford Explorer XLT 4.0L AM Radio VIN: 1FMZU74K13
Hello, thanks to all that replied. I have not gotten the truck back in yet, but the customer called and said he tapped on the alternator a few times and now the noise is gone. So I am going to pinpoint the alternator on this one. Thanks again, Korey
2005 Ford Taurus SE 3.0L Surge, Stall VIN: 1FAFP53U95
This intermittent problem car was equipped with throttle cable. I'd tried driving with EGR vacuum hose connected to a vac gauge, no help. When it died on me the 2 times, it still had fuel pressure and it happened on decel coming to a stop. It was sent to the d... Trouble codes: P0171 (P0174 Lean Banks 1 2), P0300 (Multiple cylinder misfire), P0316 (Misfire detected on start up), P2195 (P2197 Bank 1 2 oxygen sensors stuck lean).
2006 Ford Taurus SE 3.0L wipers VIN: 1FAFP53U56
found somebody have place the wrong relay is fix working all speeds thanks for all the help
2004 GMC Envoy SLE 4.2L Hesitation VIN: 1GKDS13S44
I absolutely hate when I can't nail down a problem, however I feel very informed on the Engine System on the 4.2L. After about 30 hours of checking and rechecking, I could not locate the issue. The customer decided to trade the vehicle in the way it was. What ...
1997 Honda Odyssey LX 2.2L ABS light on VIN: RA3-101405
Thanks to all. 2 bad earths, 2 bad relays, 2 fuses. This is a RH drive vehicle. The hard to find relay is just hanging behind the instrument panel. The earths are behind the glove box (LH side). 1 had almost fallen out. Fault code 31 went out once earths fixed...
2008 Hyundai Tucson GL 2.7L ABS, Steering, Traction Control VIN: KM8JN12D88
The problem has not returned yet, except the customer said the steering effort is somewhat higher than normal. The only thing I noticed was evidence of the drive belt getting wet and leaving "muddy" splash stains on the bottom of the hood on the passenger side...
2000 Jeep Grand Cherokee Laredo 4.0L pcm VIN: 1J4GW48S5Y
Thanks all. Mike from Pa had a similar prob, and he suggested a rebuilder in Fl. A good idea. $199 delivered and already programmed. A rebuilt ecu solved all of the Jeep's running, overcharging, and inop voltmeter. I also replaced the battery. It understandabl...
1985 Mercedes-Benz 300D 3.0L 2.3 shift VIN: WDBAB33C0F
Well we took this out of the car to have a look see at the front clutch and found...we could not get the clutch to slide off of the inner shaft to save our life. Usually you just take out the front band (Which was mostly black), grab the clutch with your fing...
2003 Mercedes-Benz ML350 3.7L No Start VIN: 4JGAB57E13
We tested the circuits with a load tester from BlueLinkdiag.com The hand held tester will load a circuit and tell you were current drop is...amazing. The fix was the ignition switch, it was defective!
2004 Nissan Sentra S 1.8L Intake Cam Sprocket VIN: 3N1CB51D24
bit the bullet new gear pulled timing cover set timing and fired up gear not cheap 400.00 loss job thanks for the responces
2002 Pontiac Firebird Trans Am 5.7L Poor Idle Quality, Stall, MIL Lamp on VIN: 2G2FV22G92
So it was a broke valve spring. As an import tech 90% of the time it isn't something I've ever seen or would think about. Though it wasn't a tapered end spring, which from all I've read, means it was not a stock spring. I just can't believe a V8 ran that bad ... Trouble codes: 300 (random).
2003 Pontiac Grand Prix GTP 3.8L Ebcm VIN: 1G2WR52163
thank you all for your replies, it was a big help even though we did not rectify the problem. I checked the problem areas like rubbed through wiring harness on the transmission and looked for any evidence of water or corrosion on the ebcm and pcm. We appreciat...
2004 Pontiac Grand Am SE 2.2L No Start VIN: 1G2NF52E94
The no start was caused by the cam sensor. We did not fix this vehicle, though. We told the customer we did not have time or resources to fix this vehicle. We were leaning toward the PCM, since there was no signal from the pcm, crank signals were good. He towe...
1993 Toyota Camry LE 2.2L speed sensor VIN: 4T1SK12E1U
Good morning fellas. Thank u to all who replided. The fact that there are some guru's outthere not to good to give a little guy some much needed knowlege is awesome!! I ended up swapping out the engine,tranny,ECU, and harness to make it all work. I had to swap...
2005 Volkswagen Jetta TDI 1.9L both front wheel bearings VIN: WVWSR61J75
Most of you were right, THANKS! The impact isn't strong enough for these, you do need to replace the nuts or loctite them and then use a big breaker bar to torque them further.
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