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Prev Professional Automotive Repair Technical Discussions for April 22, 2011
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2003 Audi TT Quattro 1.8L Ride Control VIN: TRUWT28N92
Hello Audi Techs: In our business we say we see problems in two's & three's...well this is the third challenge! We have a client who likes to drive the canyons hard and for a few weeks now he has had this noise that we have herd. The noise is notice in sharp l...
2005 Audi A4 Quattro 3.0L Fan VIN: WAUZZZ8E55
Hello people, I have a 2005 A5 with a 2.5 Tdi engine. (BAU). The coolant fan runs after the ignition is switched off. it does this regardless of actual engine temperature. all I have to do is switch the ignition on and wait for the fan to come on after a few ...
2008 Audi A4 Quattro 2.0L MIL Lamp on VIN: WAUKF78E48
Greetings to all have this audi wtih the above mentioned code found posible tsb on this for possible fuel sensor checked pressure was in spec just thought i would post this and see if there is a coomon issue with performance problems and fuel in tank i... Trouble codes: 12555 (Lowpressure fuel regulation p310b upper limit reached)
2000 Buick Park Avenue Ultra 3.8L Surge VIN: 1G4CU5417Y
buick surges in high gear and tcc applied under light load.can watch tac on dash and it jumps 3 or 4 hundred rpm.once acting up can slowly accelerate and feel problem up to atleast 60mph. usualy starts at 45mph.if you accel harder goes away or let off goes awa...
2003 Buick Rendezvous CXL 3.4L brake booster VIN: 3G5DA03E43
I am going to be replacing the brake booster due to a vacuum leaking and at moment do not have a Tech 2 or an equivalent capable to perform the automated bleed procedure after completely removing the ABS hydraulic control unit and the brake master cylinder tha...
2001 Cadillac DeVille 4.6L Steering VIN: 1G6KD54Y11
This cadillac is driving me nuts it has no power steering assist my tech. Flushed the power steering system with no change he also replaced the pump with an ac delco no change we put on a pump from carquest no cahnge we also installed a new rack and pinion u g...
1997 Chevrolet Corvette 5.7L turn signals VIN: 1G1YY22G4V
Vehicle has right side turnsignal problems. Sometimes the RF will not flash, but the RR always does. Sometimes the RF will flash too fast, sometimes the RR will flash too fast. The 4 ways operate normally as do the brake lamps. When one end of the car flashes ...
2005 Chrysler Pacifica Touring 3.5L abs module VIN: 2C8GF78445
this customer says that the ABS light comes on and odometer flickers Radio quits and stalled once. All this indicated to me that we were probably loosing a ground charging or battery problem checked and are OK The Dtc the one and only stored code is battery vo...
2001 Dodge Neon 2.0L Mechanical VIN: 1B3ES46C01
Hey all - I looked thru the archives. It seems as though I may have to just throw parts at this thing. Anyhow, car has entire vehicle vibration but when at 60 to 65 it is seriously worse but if you shift to neutral at that speed it decreases the vibration dram...
2004 Dodge Stratus R/T 2.7L engine VIN: 1B3EL76R04
i'm starting to cringe every time i see on of these engines. car originaly came for over heat replaced coolant outlet on top of engine and thermostat. car runs fine and no longer overheats however if you hold throttle around 1100 rpms engine makes a buzz type ...
2006 Dodge Ram 3500 Truck SLT 5.9L MIL Lamp on VIN: 3D7LX38C06
This truck came in with the above codes, ran fine but had check engine light on. Customer stated he experienced a misfire for a short time - shut vehicle off went and ate lunch, came out and truck ran fine. Mil still came on at extended idle. I replaced #3 fue... Trouble codes: P0341 (Camshaft position sensor performance), P0203 (Fuel injector 3 circuit open), P2146 (Fuel injector group 1 supply voltage circuit open)
2007 Dodge Charger 2.7L No Start VIN: 2B3KA43RO7
Hello, this car was towed in w/ a no start condition scaned system to find a dtc for the ignition coils for every cylinder, also the scanner ran a test and found crank and cam sensors to have no signal. Sensors were replace w/ oem parts still no spark? please ... Trouble codes: P2302 (Primary coil), P2305 (Primary coil), P2308 (Primary coil), P2311 (Primary coil), P2314 (Primary coil), P2317 (Primary coil)
2007 Dodge Grand Caravan SE 3.3L Starting VIN: 1D4GP24R77
i have a no start. it will not enguage starter but relay has power from ingition to relay has power from bat to relay.can not scan pcm but can scan all others.i turn key on and enguage starter and no start has no spark no noid but has 5 volts out of pcm. i che...
2007 Dodge Grand Caravan SE 3.3L Starting VIN: 1D4GP24R77
i have a no start. it will not enguage starter but relay has power from ingition to relay has power from bat to relay.can not scan pcm but can scan all others.i turn key on and enguage starter and no start has no spark no noid but has 5 volts out of pcm. i che...
1990 Ford Ranger Custom 2.3L starter VIN: 1FTCR10A0L
This truck came in about a year ago with a stuck starter solenoid. We did voltage drop test which all looked good- charged and tested battery - replace solenoid and sent it on its way. Since then truck has returned at least 5 time for the same problem. The tru...
1994 Ford Ranger XL 4.0L cooling syster VIN: 1FTCR15XXR
Hello, the truck had a new water pump and thermostat installed by another shop. Coustomer stated after the repair the temapture would go up and down quickley on the gauge. He replaced his own raidator and flushed the system and no luck. Our shop saw the cts te...
1995 Ford Mustang 3.8L Stall VIN: 1FALP45T6S
hello all, I have my personal car here. 1995 5.0 gt mustang convert. (not sure why my vin decodes here to a 6 cyl)i picked this up cheap 4 or 5 years ago, have replaced or upgraded way too many parts to list. I have an old snap-on brick scantool and its refres...
2001 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP3U02G
Ford experts, I need your expertise in order to find out what is going on. If I remove the purge valve mounted on the canister and block the hole I don't have any leaks while smoke machine activated. However if I put the valve back on I see smoke coming from t... Trouble codes: P0442
2004 Ford Freestar Limited 4.2L Power Steering VIN: 2FMZA58264
Hello, and thanks in advance for your help. This van came in with no power assist. I flushed the power steering system first, and that made the power steering work better, but it had hard spots like the u-joint in the steering shaft was bad. I replaced the rac...
2006 Ford Explorer XLT 4.0L tirepressuremon VIN: 1FMEU73E26
i performed tire pressure relearn precedure message center says tire pressure relearned. I now have message center saying low tire pressure. tried relearning precedure again with no luck. had one bad sensor replaced still no luck. please help.
2007 Ford Escape Hybrid 2.3L wiper motor VIN: 1FMCU59H07
wiper motor and linkage broken . bought updated/ complete motor/linkage to replace. new motor came with 5 pin generic weatherpac connector with the following pin out style viewed from the back of the connector 3 2 1 5 4 the original connector looked like t...
2003 Honda Odyssey LX 3.5L Misfire VIN: 5FNRL18963
Alright, car came in with 8 codes. p0300, p0301-p0306, and p1399. It would misfire alot, more so when accelerating from idle. So far replaced plugs, pcv valve, adjusted valves, and cleaned egr system. Also did idle relearn procedure. Van runs alot smoother now... Trouble codes: P1399
2006 Hyundai Sonata GLS 3.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5NPEU46F96
This car came in running poorly. The front bank is dead, all cylinders. They all have spark and inj pulse. Replaced CAM sensor with no change. Compression is 150+. Converter is right at the manifold, testing back pressure showed fluctuating (bouncing) between ... Trouble codes: P0018 (Cam Crank Correlation), P0300 (Multiple Cylinder Misfire)
2000 Jeep Wrangler SE 2.5L MIL Lamp on VIN: 1J4FA29PXY
This vehicle came in with a customer complaint of intermittent no bus showing up on instrument panel. While this occurs some of the gauges go to zero and the check engine light and air bag light come on. The only code that comes up is the p1687. I couldnt find... Trouble codes: P1687 (No mic bus message recieved)
2000 Jeep Wrangler SE 2.5L Hesitation, Surge, Misfire VIN: 1J4FA29POY
I greatly appriciate any input on this problem, I have a 2000 wrangler with 2.5 std . while driving you can hear it misfire/skip slightly but rarely shows a misfire on scan tool and usally only 1-2 register on cyl 3 . [using mac mentor scan tool ] it usally sm...
2005 Jeep Grand Cherokee Limited 5.7L Front Differential VIN: 1J8HR58275
Evidently we may have an odd ball here. This jeep has a shuddering feeling and has a noise when driving at slow speeds and turning the wheel. Feels like from the front. Never does it going straight. Goes away after driving awhile. This jeep is all wheel drive ...
2006 Kia Optima LX 2.7L Wheel Sensors VIN: KNAGE12406
Replaced 3 wheel sensors, need to know how to register sensors, will a snap-on solus do this ? or is there another way ? thanks joe
2000 Lincoln Continental 4.6L No Start VIN: 1LHNM97V7Y
Car was towed in as no start,has spark and injector signal all plugs keep getting gas soaked,scan data readings all show normal cts normal iat.lowered front exhaust ypipe no change,compression checks good 165psi.any ideas? Trouble codes: P0171 (Lean condition), P0174 (Lean condition)
2001 Mazda Tribute LX 3.0L Mechanical VIN: 4F2YU09101
This Tribute came to our shop with a complaint of the rear wheels locking up and the feeling of 'fishtailing' during a sudden stop, on dry pavement. There is no ABS, but nevertheless, the lady has owned it since new, and this just began the last two months. We...
2003 Mazda Protege ES 2.0L Cruise Control VIN: 1JM1BJ2260
The protege is not cruising,customer complaint is that the cruise ccontrol does not activate, if we hit the cruise button the dash light does come on the dash for only a second then turns off, so we can not activate the cruise at all, i cannot find any trouble...
2001 Mercedes-Benz S430 4.3L Currant Draw VIN: WDBNG70J21
Current draw of 270 mA at rear fuse box - fuse #61 Rear SAM dry, disconnected the CD no change. But then I reconnected the CD and draw is gone. Any Ideas? I played the CD and Radio still no draw, is there any intermittent draws from the Stereo System\CD\Amp...
2006 Mercedes-Benz C230 Sport 2.5L Poor Idle Quality, Hesitation, Surge, Misfire VIN: WDBRF52H16
Hey guys. I need some help with this one. This car came in with a check engine light with the codes listed. I've checked the misfire data and saw #1 and couple of other cylinders missing only @ idle. Given the failure rates of the MAFs, I started by checking t... Trouble codes: P0300, P0301
1993 Nissan Maxima SE 3.0L No Start VIN: JN1HJ01F9P
Hello everyone, 93 Maxima V6. NO Start. Tested for spark -- YES, Injector Pulse -- YES, Fuel Pressure -- YES (40 KO and 60 with return line pinched). Engine cranks but won't fire. If I spray a little starting fluid it starts and runs for a couple seconds then ...
1995 Nissan Pickup XE 2.4L Poor Idle Quality, Stall VIN: 1N6SD16Y0S
Good afternoon, I am fighting this Nissan truck, It will not idle or accerlerate with the mass air flow sensor pluged in, if the sensor is unplugged it will idle and acclerate as if nothing is wrong. Replaced the MAF twice, no change. Pin tested the ecm per t...
2009 Nissan Altima 2.5L No Communication VIN: 1N4AL21E29
Vehicle came in for TPMS light on and we checked tire pressure and reset the system. After this the vehicle stays in 1st gear and will not shift, and the check engine light came on and the yellow key light came on. Checked all fuses and checked the voltage at ...
1988 Pontiac Bonneville SSE 3.8L No Start VIN: 1G2HY54C0J
This vehicle drove in with an intermittant no start. Drove it in the shop, turn it off and tried to start it and it actually acted up. It is a no start with no injector pulse. I have good spark and good fuel pressure. I am leaning towards replacing the crank s...
2004 Porsche Cayenne S 4.5L Misfire, MIL Lamp on VIN: WP1ZZZ9PZ4
Vehicle came in running rough, checked for codes and all cyls on right bank had misfire codes, motor seemed slow to crank, checked battery with load test, replaced battery, reset trouble codes. Vehicle returned, same codes, same bank, looking to pinpoint prob...
2003 Saab 9-3 Vector 2.0L fog lights VIN: YS3FF46YX3
saab techs I need your expertise. This new style 9-3 came to me with a customer request to program headlamps so that the driver has to turn them on using the light switch so I went in using tech 2 to exterior lighting / low beams / adjustments / low beams auto...
2007 Saturn Ion-2 2.2L Cooling Systems VIN: 1G8AJ55F67
Hey guys need advice again. this 2.2 ecotech has oil in the coolant bottle, radiator hoses have oil coming out of them. there is no coolant in the oil as far as we can tell. seen alot of other posts w/head problems etc but they all had coolant in oil not oil i...
1995 Toyota Camry LE 2.2L A/C system VIN: 4T1SK12E6S
This is a strange one. Cust states no a/c. Turn on switch it lights up normally DOES NOT BLINK. No comp or fan engagement. Blower motor works great on all speeds, and airflow changes properly on def, floor, vent, ect. Jumped out pressure switch, nothing. Repla...
1995 Volkswagen Jetta GL 2.0L starter VIN: 3VWRB81H75
replaced clutch and know it will not start did a voltage test on the starter (brand new starter) no voltage going to terminal 50, ran strait power to it it spun but did not engage to fly wheel. used schematics still no go
2006 Volvo S60 2.5T 2.5L evaporator? VIN: YV1RS59286
Now attempting to replace oil in system and I can only find component replacement values and compresor capacity @ 70cc, the dealer is indicating that the 70cc is enough for the entire system but I am skeptical, anyone have a spec for this? Any and all replies ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 BMW M5 5.0L MIL Lamp on VIN: WBSNB93596
Car is back with MIL on, DTCs: 2789 Detection rough road, 278A Ambient temperature, 2772 Tank-venting valve output stage We have replace both cannister purge valves under intake housing, in reference to 2772. Is this code possibly referring to tank vent valv... Trouble codes: 2789 (Detection rough road), 278A.
1987 Chevrolet LLV 2.5L hazard flasher VIN: 1GBBS10EXH
This truck is not fixed as of yet.I got some good info,but still no schematic.Most of the replies pointed to bad connections,and corrosion at fuse box.The fuse box and harness have been replaced already as that is a common problem on these vehicles.Part of th...
1993 Chevrolet C1500 Cheyenne 5.7L Cuts out, Misfire VIN: 1GCEC19KXP
Thanks guys for the advise. we tested and tryed all suggestions with no we tested running compression and found some weak cylinders. replaced valve springs FIXED.
1994 Chevrolet C1500 Suburban 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1GNFK16K1R
Well, unfortunately this truck left un-fixed. I tried all of your suggestions. I went and bought a new vacuum gauge and pump because I just didn't trust the readings on my old one. (my distrust was justified) vacuum was at 19.5-20.5in.lbs at idle. (When I firs... Trouble codes: 33 (Map sensor circuit high), 45 (Rich exhaust).
1997 Chevrolet K1500 Suburban 5.7L abs VIN: 1GNFK16R8V
Sorry about the delay all. I gave the customer the information a few times but he never returned. I think he has dumped all the money into this barge that he is going to. He has had numerous expensive problems with it. 3 fuel pumps - 2 transmissions and so for...
2001 Chevrolet Tahoe 5.3L Mechanical VIN: 1GNEK13T51
Well, I am calling this a fix even though I didn't get to actually fix it. The noise was as most of you suggested bad lifters. The repair for these is to replace the cam and lifters. Some people mentioned a cracked flywheel which I checked but saw no rust o...
2005 Chevrolet Suburban 1500 LT 5.3L MIL Lamp on VIN: 3GNEC16Z25
Most people agree that the throttle body is most likely the problem,but with no clear cut indicator, with voltage and resistance values checking out...I be scared.One question I still have , is it possible for the engine to have a problem like low fuel pressur... Trouble codes: P1125 (APP TP sensor).
2001 Chrysler Sebring LXi 2.7L cooling system VIN: 2C3AD36JX1
Thanks Kent from Florida, Thomas and Frank. I determined that the PCM was bad with the help from these techs. If it was mine I would have tried a PCM from Pull A Part but we don't do used parts at this shop. The customer picked up the car and may return at a l...
2001 Ford Taurus SE 3.0L No Start VIN: 1FAFP58U51
Thank you for all the replies on this matter, especially the fax of the wiring schematic that we recieved! Based on most of your replies and looking at the testing we performed on the circuit I think we have this one fixed. Thanks again!
2002 Ford F-250 Super Duty Lariat 7.3L No Start VIN: 1FTNX21F62
Thanks for all the help. I was leaning toward the injectors due to lack of buzz from 1 injector and weak sound from 5 injectors after plugging in block heater for 2 hours buzz test sounded better and truck started and ran so i pulled all injectors and took to... Trouble codes: P0340, P0470, P1247.
2003 Ford F-150 XLT 5.4L Misfire
thankx to everyone who replied. it turns out water is leaking down past the cowl and dripping onto the engine and pooling there eventually getting past the boots.
2005 Ford Ranger XL 4.0L noise VIN: 1FTZR15E95
yes you guys get the fix credit! the harmonic balancer moved to the REAR of the engine.the belt never jumped off,but with the now smaller diameter pulley the tension was loose so the belt noise. a spanner wrench is needed to loosen the crank bolt,next the diff...
2007 Ford Explorer Limited 4.6L tire pressure monitor VIN: 1FMEU65857
i found right front sensor bad replaced and retrained with tool i borrowed. about oil problem he decided to keep a eye on oil level and see if it gets worst until next oil change
2000 Lincoln LS 3.0L Poor Idle Quality, Misfire VIN: 1LNHM8658Y
Well this is still not fixed and I would like to just "update" here but I only get 1 update. So I still could use some help if any of this info means anything to anyone. Mode 6 has always come up with a 0 value on the Snap on scanner. So that has been no help ...
2008 Mazda 3 i 2.0L Misfire, MIL Lamp on VIN: JM1BK32F58
This car is fixed! We went back through the compression and leakage test. The compression wasn't too bad, with cylinder 3 a little lower than the others. The leakage test was done with 3 of us listening to the car. We could not really hear anything coming ... Trouble codes: P0303 (Misfire cylinder 3).
1986 Mercedes-Benz 420SEL 4.2L Poor Idle Quality VIN: WDBCA35D4G
First, thanks to all who replied, especially John from North Carolina. John confirmed my suspicions the circuit in question is for the Decel fuel shutoff function and this car has a defective CIS-E module that when it sees the ground through the TPS or "thrott...
2007 Mercedes-Benz CLS550 5.5L No Start VIN: WDDDJ72XX7
What a winner this one was! Long story short, the car had three problems Cam Sensors / Front SAM / ME Computer with out a doubt all three! Try explaining that to a client who is conversing with a guy at the dealership that is telling him we don't know what we ...
2002 Mitsubishi Eclipse RS 2.4L Compressor Clutch VIN: 4A3AC34622
I finally found the PCM. It is located between the heater box and the firewall. Very difficult to see but if you remove the right side air bag and glove box, you will see one end of it. You have to remove the air duct in order to get to the PCM. However, the p...
2005 Nissan Maxima SE 3.5L heater VIN: 1N4BA41E45
well, after 3 days of off/on work, flushed system 5 or 6 times, bought an air lift to purge system, removed hoses from core and filled with coolant to be sure, removed hoses again and put flush acid in core only and sat overnight,flushed again,installed new fa...
2008 Saturn Astra XE 1.8L tensioner VIN: W08AR67118
Thanks for all the responces, drive belt tensioner was weak, and caused the upper timing belt cover to vibrate. The new GM tensioner has been redesigned, its now a flat spring rather than round, and the spring is enclosed instead of exposed. Another one kicke...
2005 Subaru Outback XT Limited 2.5L Cuts out VIN: 454BP67C05
Thanks for the replies, I used a boost gage and found the noise started at 7 lbs boost. I started looking for a pressure leak in the intake sysyem. Found a bad gasket at the hose between the intercooler and intake. Replaced hose and gaskets. Runs fine now. ... Trouble codes: P0021 (a cam over advanced).
1978 Toyota Land Cruiser 4.2L Clutch VIN: FJ40296006
Many thanks to Bob [...]! The fix was to substitute the original 13/16" slave with a 3/4" slave from an earlier application. The smaller bore gave us, as Bob suggested, 15% more travel at the slave.
2005 Volkswagen Golf GL 2.0L Noise VIN: 9BWGL61J15
Alright guys. This one is fixed. It WAS the starter! I can't believe I couldn't think of that! It didn't even cross my mind! I was blinded by the fact that the customer changed oil w/ regular oil instead of synthetic, and thought that that was the problem. Oh ...
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