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Prev Professional Automotive Repair Technical Discussions for November 17, 2010
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Help Request Answers
2004 Audi A4 Quattro Avant 1.8L noise VIN: WAUVC68E24
chatter in fuel tank.(not a whine)when key turned on,and sometimes when running.relaced fuel pump and filter to try to stop noise,same problem. sounds like it may be comming from the suction pump side. noise with tank full or empty.can feel chatter in line bet...
2001 BMW X5 4.4i 4.4L Shift select light VIN: WBAFB33521
BMW Techs...we have a shift select light that stays illuminated all of the time and could drain the battery over time. My understanding is that light is suppose to go out after 16 minutes or so?? What module or relay controls that light and where is it located...
2005 BMW X5 3.0i 3.0L Misfire VIN: WBXPA93435
Vehicle came in with a misfire/hesitation. Driving the car, when under load (going up a hill or on the highway), on slight acceleration it feels like it drops a cylinder. The hesitation is very rhythmic and occurs between about 2,500 and 3,500 rpm. If you're i...
1987 Buick Century Limited 3.8L Excessive Emissions, Poor Idle Quality, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G4AL5133H
I am really hoping you guys can help me on this one. I am stuck. Here goes: To start off with, the owner of the vehicle is deaf, so communication is tough. Vehicle was overheating and stalling, came in with a major leak in the coolant hose to the throttle body... Trouble codes: 42 (Computer Controlled Coil Ignition or Bypass Circ. Failure), 43 (Electronic Spark Control Circ. Fault), 44 (old Lean)
1997 Buick LeSabre Custom 3.8L high idle VIN: 1G4HP52X1V
Thanks in advance for all your replies. This one has me stumped, intermittent but occurs 80 to 90 % of the time. When you start the car tps voltage is about .56v but the angle climbs to 1 to 2% and when this happens the idle goes up to about 1450rpm desired is... Trouble codes: P0507
1991 Cadillac Brougham 5.0L high idle VIN: 1G6DW54E6M
Hello, Techs I am working on this cadillac Brougham for a high idle concern. The idle is reading 1200 rpm in park and wont idle down. I checked for vaccum leaks couldnt find any and we replaced the IAC valve. The tps angle is reading 0 percent at idle. Does an...
1994 Chevrolet S10 SS 4.3L No Start, Hesitation, Cuts out, Stall VIN: 1G3EF456GD
This truck was brought to me because it is hard to start when cold, and sometimes will not start at all. When you first take off in the morning it sputters and won't get out of it's own way. As it warms up, it runs a little better. Before i get into it, this t...
1995 Chevrolet Astro 4.3L Poor Idle Quality, Surge, MIL Lamp on, Suge at idle VIN: 1GNDM19WXS
Customers major complaint is severe surging at idle,And by the way the MIL is on,She also says that if the MIL stays off the engine runs fine.The idle Has surged & the MIL been on the whole time since it came to our shop.I verified the MIl is on & it does surg... Trouble codes: 32 (EGR position out of range), 42 (EST problem), 45 (O2 fixed high)
1997 Chevrolet Tahoe LS 5.7L Driving problem VIN: 1GNEK13R7V
Hello all. Have a 97 Tahoe 4+4 that has a buck at 55 mph has no code`s. Cust took it to trans shop an they told him that the trans was good. Has no engine problems run great just has this buck but not all the time test drove it. had it in frist gear at 55 and ...
1998 Chevrolet S10 LS 2.2L No Start VIN: 1GCCS1447W
Well I have another S-10 problem a customer brought me.This is a 98 2.2L,it had intermitent run problems, sometimes it would start and run fine,just die and not start, or not start at all.The customer installed a new delco(factory) fuel pump,new fuel pump rela...
1998 Chevrolet Blazer LS 4.3L battery VIN: 1GNCT18W8W
Can't seem to find Draw Pulling all fuses on at a time still battery draw 1/2 amp. unplugged Bcm still draw, pcm unplugged alt unplugged still draw. When first shutting off vehicle, draw is at 1.35 amps then drops to .72 amps then to .50 and stays at .50 All d...
2000 Chevrolet S10 4.3L brake lights VIN: 1GCDT19W2Y
2000 s10 No rear brake lights
2000 Chevrolet Malibu LS 3.1L Passlock/Atd VIN: 1G1NE52JXY
Thanks all for reading and your help,So I am looking for advice got this malibu with codes B2958,B2960 in history not current, and sometimes it wont start also while driving security system light stays on solid sometimes,I have delt with some of GM's passlock ...
2002 Chevrolet Suburban 1500 LT 5.3L Cuts out, Stall VIN: 3GNFK16Z53
This vehicle came to me with an intermitent stall problem originally. Had a couple of 1200 series codes ( Electronic Throttle Body.) I lost my notes on this rig so I can't remember which ones. I did some research and found this was a common stall condition cu...
2010 Chevrolet tahoe 5.3L power windows bcm VIN: 1GNUKAE06A
while installing some radios I must of shorted out the light green wire to my assory panel there is no power there also dr window control is inop and a bunch of fault code come up over the dash
2001 Chrysler Sebring LXi 3.0L Mechanical VIN: 4C3AG52H61
Towed vehicle off road. Quit at highway speed. Check transmissoin codes and fluid. Found no fluid pressure and no fluid flow through cooler. Cleared codes and did not return. Suspect oil pump. Looking for information before i remove transmission from vehicle.
1997 Dodge Ram 2500 Truck 5.9L Cruise control VIN: 3B7KC23DXV
Cruise is inop on this diesel truck. The abs & brake light is on. It is a 2 wheel abs system. The speedo does work. I checked the common broken vac hose under battery tray and it's good. The vac pump is producing good vacuum. The cruise will work in 5th gear a...
1999 Dodge Ram 1500 Truck 5.2L Convertor VIN: 1B7HC16Y7X
This truck seems as if it is downshifting while the TCC is still kicked in. Upshifts seem to be a bit off (higher than expected) for the speed and load. Downshifts seem to be delayed to a lower speed than expected. This is erratic, but when it happens there is...
2000 Dodge Caravan 3.3L noisy VIN: 2B4GP45G5Y
We started thinking it was a transmisison noise---decided to do a lil digging on the engine side looking for a reason--nothing found in the belt area---removed the timing cover and repalced chain..since we went all that change-- loud noise at start up ...
2002 Dodge Ram 2500 Truck 5.9L Stall VIN: 3B7KF23602
Hi everyone, hopefully there is some diesel techs out there that can figure this out. This is my own personal truck & I don't work on diesel's very often other than maintenance. Here's my story: Recently the truck started stalling, mainly when I had the fuel ...
2004 Dodge Ram 1500 Truck SLT 5.7L Poor Idle Quality, Stall, MIL Lamp on VIN: 1D3HA14J19
hi all,wondering if anyone out there has run into this before. this ram truck will not stay running. as stated,has codes for both cam and crank sensors,replaced both sensors with no change. truck cam in 3 quarts low on oil and has been 7,000mi. since last oil ... Trouble codes: P0335 (crank sensor fault), P0340 (cam sensor fault)
1979 Ford E-350 Econoline 5.0L Ignition VIN: HHFE37HHAD
Customer has a no start 79 econoline rv and I have tested the following. -fuel pressure - Strong fuel pressure at the line -fuel injects at the carborator fuel injection nozzles -Timming is correct with rotor pointing to #1 cap terminal and TDC on ballancer ...
1998 Ford Explorer XLT 4.0L Accessories VIN: 1FMZU34E0W
radio displayes the word call.This came after we replaced a blend door.Ford told me that they do not use security codes. Any help is appeciated
2000 Ford Explorer XLS 4.0L MIL Lamp on VIN: 1FMZU72X8Y
Sets these trouble codes. Went thru diagnostic steps twice with same results. No shorts to power or ground. Heater resistance in all 3 sensors within range of 3-30 ohms. No opens between O2 sensor connectors and PCM connector. Voltage to heater in sensors is 1... Trouble codes: P0135 (O2 Heater B1S1), P0141 (O2 Heater B1S2), P0155 (O2 Heater B2S1)
2001 Ford Explorer XLT 4.0L MIL Lamp on VIN: IFMZU73E91
Had this vehicle in for the 2 codes listed about 2 weeks ago After going over the basics, i thought about the intake gaskets, I had fuel trims of LT +25 and ST+20 on both banks when cold at high speed they went slightly lower about +10. After exhausting everyt... Trouble codes: P0171, P0174
2005 Ford F-350 Super Duty Lariat 6.0L No Start, Cuts out, Misfire, MIL Lamp on VIN: 1FTWW31P95
Please help if you can. My daughter is traveling from Colorado and through Indiana in her 2005 Ford F-350 Diesel (see related repair history contained in this post) and (right now stuck with truck not running on I-70 in Casey Illinois). She has had a situation...
2009 GMC Savana 1500 5.3L airbag diagnostic module VIN: 1GDFG15489
We got the Van that vas crached and repaired in the US. Above mentined DTC's are pending. The installed airbag diagnostic module part nr. [...]. The module is looking for rollower sensor, side curtains and seat weight sensors but by VIN this equipment was n...
2004 Hyundai Santa Fe 2.4L No Start, Stall VIN: KM8SBI2B94
original complaint was that it started then stalled.when trying to start it it bucks like it is way out of time. timing belt was checked and timing is on the mark.they replaced the cam and the crank sensors then the ignition failure sensor. still no start. whe...
1993 Jaguar XJ6 4.0L Door locks VIN: SAJHW1748P
Hi,[...] outthere) I got this l993 Jaguar XJ6 With door locks issues. When I click the key fob to unlock the doors( they all do it with no problems. But if I do it two more times, and try to unlock them, the doors will unlock normally, but after a few secon...
1999 Jaguar XJ8 4.0L mil on intermittently. VIN: SAJHX1040X
The car came in with the complaint that the ABS light and the stability control light were intermittently coming on. I ran the car on the floor or about 1/2 hr. during which time the lights did come on. I scanned the ABS control unit and pulled the codes liste...
2004 Land Rover Discovery HSE 4.6L Misfire VIN: SALTY19494
We took a look at this vehicle monday--no spark was coming out of the coil pack that fires 5-8 cylinder-we noticed that cyl 5-8 share the same coil pack-we recommended replacing the coil pack and giving it a tuneup at the same time-the customer wanted to do hi... Trouble codes: P0305 (Cyl 5 misfire), P0308 (Cyl8 misfire)
2006 Land Rover LR3 4.0L passenger side door locks VIN: SALAG25466
client has come in with the passenger side door locks inop. the door locks will lock with the master and romote but then will not unlock. locking system is in the selective mode, one push drivers door unlocks, second push driver rear and hatch unlock. done the...
2000 Lincoln LS 3.0L Hesitation, Cuts out, Stall VIN: 1LNHM86SXY
Vehicle runs fine at idle. It runs fine--normal driving. Vehicle stalls and cuts out if you push the gas pedal all the way to floor very quickly between 20 mph and 50 mph. Accelerates fine from a stop and does fine on the highway. If I clear the codes, they do... Trouble codes: P0340 (Camshaft Positon Sensor Circuit), P1233 (Loss of Communication with FDPM and PCM)
1995 Mercedes-Benz C280 2.8L Hesitation, Cuts out VIN: WDBHA28E9S
Car originally came in with stumble on cold accel. and RPM's were limited to 1500 when cruising. If throttle was released, car would eventually accelerate. Found coolant leaking on crankshaft sensor, replaced sensor and car seems to run better but still has co...
1996 Mercedes-Benz S420 4.2L Surge VIN: WDBGA43E4T
This car has a rapid surge at start anytime car is started. If you turn key from run and back(quickly so engine is still turning) car will imediatly run perfect. All powers and grounds appear to be good and all preasures are normall. Readings for throttle body... Trouble codes: C1022 (fault in CAN communicatin abs system)
2002 Mercedes-Benz ML500 5.0L Misfire VIN: 4JGAB75E62
Vehicle has a slight misfire at idle. Misfire will not trigger CEL. Runs excellent while driving. Anyone run into this? I dont have the ability to pull datastream. Have a pocket code reader. No codes are stored. Im thinking spark plugs but with 16 plugs I want...
1995 Nissan Altima GXE 2.4L Throttle Cable VIN: 1N4BU31D2S
Intermittent high Idle. Checked for codes, none found. Cleaned, repaired and charged battery - visual inspection fail. Lubed under hood throttle cables, checked tension springs, no binding at the throttle body, everything free and in good shape. Removed the ni...
1996 Other GM T 300 5.9L Engine power VIN: 3NKHMH87X0
Hey diesel gear heads. My service truck lost it's edge. It's not using coolant or misfiring or moisture in oil so no blown head gasket. Power seems more normal in upper gear range at higher RPM on a warm engine. No boost gauge, so I installed one. At this cond...
1998 Saturn SC2 1.9L shifting VIN: 1G8ZG1277W
I have this SC2, its my personal car that I just bought a few weeks ago. the problem I am having is difficult shifting after driving for a while. the thing shifts great when I first get in it cold. after 20 minutes of driving or so it becomes very diffucult to...
2001 Saturn L300 3.0L No Start, Lack of power VIN: 1G8JW54RX1
I have an 2001 Saturn L300 that has an extended crank. Sometimes it will start after about 1 minute of cranking, sometimes it takes 15-20 minutes. Every time it starts there is a strong fuel smell. Occasionally there is a small pop through the air box. The ect...
2004 Subaru Outback H6 VDC 3.0L Unknown VIN: 4S3BH89674
Vehicle exhibits what feels like a torque converter clutch shudder or a rapid 3/4 hunting shift at steady highway speeds; it is intermittent, but present often enough to be an issue. I also think the torque converter lockup is harsh, but customer hasn't notice...
2006 Toyota Avalon Limited 3.5L Blower Compressor VIN: 4T1BK36B66
Hello to all have no blower and no ac compressor operation i have 12 volts on the solid white wire to blower and a good ground on white with black wire should the blower run or does the red wire from the amplifier control the blower? aft 10 min, or so i have n...
2007 Toyota Sienna LE 3.5L oil pump VIN: 5TDZK23C67
Engine was reinstalled and started fine. Oil pressure was low at idle. After reving engine oil pressure would rise and light would go off. Pulled pan and reinstalled gasket in pickup tube. Oil pressure increased and light was not on. Next day light returned on...
2009 Toyota Corolla LE 1.8L Fuse Links VIN: JTDBL40E99
Please help toyota techs,the battery was jumped backwards and now the fuse bar (clear platic top) has failed but i think more is wrong i tried to bypass the bar by hooking power to stud and still have no power to the efi 1&2 fuses and the etcs fuse was blown.i...
2003 Volkswagen Jetta TDI 1.9L No Start VIN: 3VWRP69M23
Intermitant no start But... when this car does this it sounds like it loses compression. It starts to crank, sounds normal & then "freewheels" NO START. Stop cranking try it again & it starts right up no problem but smokes heavy. I think it is flooding, loosin...
2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WVWPD63B04
Customer initially came in 2 weeks ago with a overheating condition. Replaced the thermostat and no flow for the cooling system. Found that the waterpump fins were seperated as a result of overheating. Replaced timing belt and waterpump. Accidently got timing ... Trouble codes: P0300, P0301, P0302, P0303, P0304
2004 Volkswagen Jetta GL 2.0L Head VIN: 3VWSA69M94
This is a BBW engine with varible valve timing. Removed head and sent to machine shop. Replaced timing belt, water pump, thermostat, screen and plug (in head) as well as all related gaskets. Got the car back together and it ran and sounded great. Test drove fo...
2005 Volvo S40 i 2.4L Hesitation, Stall, Misfire VIN: YV1MS39005
Hello Volvo techs. This 05 S40i came in with mil on and rough idle. Customer states MIL was on for a while, but after car sat for a week it started to idle rough.I do not see volvos often and only have generic diag scan tool. DTCs p0011 and p0172b. On global O... Trouble codes: P0011 (IntakaA cam timing over advanced), P172, 250A, 640F

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1998 Audi A4 Quattro 1.8L Mechanical VIN: WAUCB28D3X
i have put another trans in this car and the noise went away. thanks for all the help
2001 Audi A6 Quattro 2.8L Valve Covers VIN: WAULH64B41
The IATN strikes again...I love this site! We got some real good feed back and yes there were several issues going on! The PCV Valve was defective and the cam end plug seals were never changed by our Tech...what was he thinking? The valve cover gaskets never g...
2005 BMW 645Ci 4.4L Cuts out, at cruise VIN: WBAEH73495
while scoping the vehicles crank sensor in cruise I could see an inconsistent pattern from the crank sensor, typically when the engine rpm was between 1500 and 1800 the speed would drop to 500 - 600 rpm range, then dart back to normal. I changed the crank sen... Trouble codes: 2A89, 2A88, 9408 (sim-sgm Eco Converter fault current).
2000 Chevrolet Tahoe 5.7L No Start VIN: 1GNEK13R6Y
We installed a new Delphi pump & and a new connector. We also ran a redundant ground for the pump to battery negative. We suspect too much ground corrosion. Vehicle has Not that's a good sign!! A big thank you to all the people who took of th...
2001 Chevrolet Silverado 3500 LS 8.1L 3-4 shift, shift indicator VIN: 1GCJK39G91
first off, thanks for all the assistance on this one. installed aftermarket part(needed truck fixed). all is well, no problems clearing DTC. the switch had been replaced atleast once before. no problems getting the connectors unplugged. resealed both plugs as ...
2003 Chevrolet Express 3500 6.0L Water Pump VIN: 1GCHG35UX3
Vehicle's gone! Dealer water pump and several updated parts for the vacuum system from Butler(the manufacturer) have fixed this vehicle. After talking to Butler they mentioned that they have worked with GM on this exact problem. Through this we learned that GM...
2004 Chevrolet Tahoe Z71 5.3L front differential VIN: 1GNEK13T64
Ok so big thanks to all the responses!! last night after hours I decided to pop the diff out...I took the caes apart and took a peek. Remember in my post I wasnt able to manually engage the diff with the actuator out..Sure enough when I took the right side apa...
2005 Chevrolet Silverado 3500 LS 8.1L No Start VIN: 1GCHK23285
I decided to take the advice of Steve and remove the tank and clean it out real good, and removing any remaining fuel from the lines. I changed the filters once more,and at this time the truck is running and starting perfectly. I guess it still had enough gas ...
2006 Chevrolet Silverado 2500 HD LS 6.6L No Start VIN: 1GCHC23296
Removed to timing cover to check for camshaft pin sheared or reluctor damage. Everything ok. Reinstalled cover and truck started right up. Did not change anything that we are aware of.
1996 Chrysler Town & Country (Van) 3.3L No Start VIN: 1C4GP55ROT
2000 Ford Explorer Sport 4.0L Excessive Emissions, Surge VIN: 1FMYU70E5Y
Thanks for all the replies on this one. It ended up being the front o2 sensor wires crossed. Swapped connectors and started running fine. Thanks again. Customer swore he connected them right.
2003 Ford F-250 Super Duty XLT 6.0L Stall, Delayed restart VIN: 1FTNW21P93
I ended up replacing the bad engine wiring harness, leaking ICP, intermittent open circuit IPR. Then #7 injector failed. Each time I replaced a part the truck ran better and better. After all of this the frame mounted fuel pump failed. This truck was a total n... Trouble codes: P2363 (Injection pressure regulator open), P0290 (Injection pressure low).
1997 Honda Civic DX 1.6L 1st Gear VIN: 2HGEJ6677V
thanks to all. i pulled the 1st gear drum off and found it was cracked. replaced it and all was fine. thanks again.
2005 Honda Civic Value Package 1.7L alternator VIN: 2HGES16375
installed other brand alternator and problem solved. thanks everyone for your help. Sometimes things just don't seem possible.
2004 Jaguar Vanden Plas 4.2L Stall, start/stall VIN: SAJEA74C84
Sorry this is late. I have purchased a new ECM but have been unable to program it. Jaguar tell me the software for this vehicle is currently unavailable. WHAT? So my customer just walks while Jaguar is deciding if and when they want to write software for this...
1994 Mazda MX-3 1.6L Starting VIN: JM1EC4330R
i apreciate to all technicians to help me wuith this car problem,i change the pcm,and car star,thanks very much to all.
1997 Mazda 626 DX 2.0L Poor Idle Quality VIN: 1FDE4H7865
Thanks to all who replied, you were right. When I had put the timing belt back on, all the marks were lined up perfect. I rotated the engine around 3 times and all marks were still lined up perfect. Put everything back together. When I started vehicle timing b...
1951 Mercedes-Benz 170 1.8L Mechanical VIN: 1360722162
Thanks for all of the response.Brooklyn Motor Works [...] can get these parts for me (very expensive but that is to be expected)They were very knowledgeable. Several people suggested MB Classic in CA. but I haven't been able to get through or receive a ...
2003 Mercedes-Benz C230 Kompressor 1.8L MIL Lamp on VIN: WDBRN40J53
Thanks to all who replied, the customer has chosen to take the car to the Benz dealer where purchased. Looks like they are going to need at least two 02 sensors and the main harness to start. I would have been lost without help so thanks to all again. Trouble codes: P2058.
2003 Mitsubishi Lancer OZ Rally 2.0L clutch bleed VIN: JA3AJ26E13
Thanks for all the tips, we figured out the problem! The reservoir is shared with the brake master cylinder. Because of this, the reservoir is actualy divided into two sections. While we thought the cylinder was full, we had to overfill it to make sure it go...
2001 Nissan Maxima SE 3.0L No Start VIN: JNICA31A41
Well, sorry, I kinda wasted your time, but here's the story. She brought car, came in, handed me a plain, copied-looking key. I did think that was a little strange, but hey, she just drove it here, walked in and gave me a key. I called her later, she brought ... Trouble codes: P0430 (Cat effic below threshold), P0135 (HO2S heater circuit), P1610 (Manf ctl aux in/outNo specific definitionpending code), P1614 (Manf ctl aux in/outsamepending code).
2002 Nissan Pathfinder LE 3.5L A/C temp VIN: JN8DR09X52
after testing and inspecting vehicle further we decided to try replacing the thermistor (temp sensor on evaporator) and a/c operation returned to normal. all pressures were good at all times but system just was not cold enough. after replacement the temp dropp...
1989 Pontiac Grand Prix 3.1L No Start, Stall VIN: 1G2WJ14T4T
Thanks for all replies---found Verus and OTC would not comm with 89 car---Have Tech 2 scanner don't use, as often---all data there, but removed upper intake, ohmed all injectors #4 dead, replace #4 only, vehicle runs great. Thank you all!!!
2004 Pontiac Grand Prix GTP 3.8L blower motor VIN: 2G2WR52444
A new blower motor fixed the vehicle. Seems kind of silly to me that the module isn't capable of handling current under the fuse rating (30amps). The new motor drew less current on high, about 6.5 amps.
2000 Toyota Celica GT 1.8L Stall VIN: 2000TOYOTA
We havent found anything specific regarding the stalling problem. Everything looks and tests good at this time. Decided to send to dealer for further advice. Thanks for the replys.
2000 Volkswagen Jetta TDI 1.9L MIL Lamp on, hard start VIN: 3VWSF29M2Y
Upon inspection i have that all fo the glow plugs and harness have the same resistance and found that the glow plug relay that was replaced is good. the missing information that i could not find is that the glow plugs do not activate over 40 degrees F and that... Trouble codes: P0380.
2003 Volkswagen Passat GL 1.8L engine VIN: WVWND63B13
replaced aftermarket mounts with factory mounts most of vibration gone thanks you guys for all your help iatn rules
2008 Volvo S40 2.4i 2.4L exhaust VIN: YV1MS38298
first of all i would like thank all of you for your responses i did fix this car it turned out someone had replaced the exhaust manifold and the bolts were not tight they were just snugged up and after retightened bolts noise went away thanks for everything.
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