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Prev Professional Automotive Repair Technical Discussions for September 27, 2011
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Help Request Answers
1997 BMW 740i 4.4L Cooling Systems VIN: WBAGF8325W
Thanks for your help in advance, So this is my dads car and he commutes 100 miles a day in it, and one day it was getting hot on him and know if you start it up in the morning it takes about 15 min to start overheating. So heres what I have checked system hold...
2002 BMW Z3 Roadster 2.5L Two piece drive shaft VIN: 4USCN33482
This car came in with a horrible shake and a thump under the middle of the floor. It was very bad when under acceleration in 1st gear. We tuned it up and replace the tube from MAF to Intake. We found the cage broken on the center support bearing. We replaced w...
2004 BMW X5 4.4i 4.4L burning oil VIN: 5UXFB535X4
I got the vehicle in and found that it has 16psi of vac on the crank case. This doesn't have the same PCV system I have seen on the older V8's. What regulates the vacuum? What is the spec on this. Mitchell doesn't have any info at all on this system. Any help ...
2004 BMW 525i 2.5L Low Power VIN: WBANA53584
This car came in with engine light on and low power. Sometimes bucks bad while driving from a stop. Then the throttle pulsates at 14-1700 rpm. Shut off engine and restart then no pulsation but CEL is on. Car has poor power all the time. We replaced the mass ai... Trouble codes: P16A7
2006 BMW X3 3.0i 3.0L Poor Idle Quality, P0171 & p0174 VIN: WXPA93496W
Checking for intermitent codes p0171 and po174,lean bank 1 and 2. No obvious vacuum leaks. Check pcv system via of a flow chart designated to these codes. Check vaccum at oil dipstick, should be 1/4 to 1/2 inches of vaccum. Vacuum is 10 inches at dipstick and ... Trouble codes: P0171 (Lean), P0174 (Lean)
2007 BMW X3 3.0si 3.0L Gauges VIN: WBXPC93457
Hello, Orig Speedometer has ODOM Pixel problem, Burnt out, only half of it is reading, So I was able to find my Cust a used one with about the same miles and I have documented and place the new Odom change sticker in the door, but my Problem is that the new He...
1992 Chevrolet K3500 Silverado 7.4L Brakes VIN: 2GCHK39N4N
Put all new brakes on this in January, developed a pull to right on braking. Made it "better" by swapping front pads sided to side along with the tires. Took camping with 11' camper, experienced severe pulsation coming down mountain pass. Left front tire felt ...
1996 Chevrolet Camaro 3.8L Excessive Emissions, Misfire VIN: 2G1FP22K7T
Vehicle came in for failed emissions and running rough at idle. only rough at idle, at about 1500 rpm engine smooths out. Driving down road cannot feel missfire. found cylinder #1 dead at idle. Tested spark - good. checked for vacuum leak around #1 intake runn... Trouble codes: P0300
2002 Chevrolet Avalanche 1500 5.3L Temp VIN: 3GNEK13T52
Need some help on this one.truck came in temp would not move from hot to cold found bad temp motor replaced.now i move with scanner but din't move with controls. Replaced controler.now moves only full hot and full coldnothing in the middle.found tsb on moving ...
2003 Chevrolet Tahoe LS 5.3L Auto headlamps / DLR VIN: 1GNEK13Z83
As stated this is a ex squad or fire department unit. The auto on headlamps don't come on and daytime running lights are inop also. As is the shift indicator illumination,hardly visible in the dark, which is probably dash unit. I have checked all bulbs, fuses,...
2006 Chevrolet Silverado 1500 LT 5.3L Reduced Eng. Pwr. VIN: 1GCEC19256
Hello everyone, I now have two vehicles with similar problems on my lot - albeit not the exact same (either engine, and codes present). This current vehicle is a 2006 Chevy Silverado (5.3L) - Trouble codes: P1516 (Electronic Throttle Module vs. Throttle Position Performance)
2001 Chrysler Sebring LXi 2.7L Stall VIN: 1C3AL56UX1
Basically if it is running at operating temp and I turn the steering wheel will stall sometimes and doesnt have to be to the locks, changed IAC and cleaned out the throttle bore, no change, tested alternator and tested ok. If I let it idle with blower on high,...
2001 Dodge Intrepid ES 2.7L acells on own VIN: 2B3HD56U81
Car wants to cruise !!! Runs perfect no faults and scans normal... It wants to acell by itself and will hold sometimes 10 seconds before returning to normal. No bound linkage no carbon on plate no vac leaks... what am I missing???
2002 Dodge Intrepid SE 2.7L Surge VIN: 1GCHK39J3X
just had a brief time this evening to look at what this car is doing,,trying to help a neighbor ok...car starts great, idles OK,, but should,nt. when the engine is reved up above 1500 the engine started surging ,, i pulled the wires off coil overs on drivers s...
1997 Ford Windstar GL 3.8L control switches VIN: F10967B2FM
Im realy thinking this is a vacum issue. has anybody found the leak that is hiding from me, I have looked all over for any type of leak, even with a vacume pump and gauge. vacum to the panel seemed normal... 18in to 20. but it was kind of slow getting there af...
1997 Ford F-350 XL 7.3L brake pedal VIN: 3FEKF38F4V
This vehicle was brought in originally for low brake pedal, It was found to have a bad brake line, replaced then another brake line blew out, at that point based on the generally rusty condition of the underside of the vehicle we replaced all the lines, still ...
1999 Ford F-250 Super Duty XLT 6.8L Low power VIN: 1FTNX21SXX
Vehicle have low power on heavy Acceleration. Checked fuel pressure 30-42 psi., MAF at idle is around 8gps and 180ish around 3500 rpm under full throttle. Can not get vehicle to tach out to get a full MAF #. Attached a vacuum gauge and under a power brake cond...
1999 Ford Taurus LX 3.0L engine VIN: 1FAFP53U8X
This car had an overheating problem and was diagnosed with a blown head gasket. Took off both heads and sent them to a known reputable machinist. Both heads passed pressure test. Minor shaving of heads, refaced valves, and replaced gasket set. Replaced Water p...
2002 Ford Mustang 3.8L input bearing retainer VIN: 1FAFP40452
Customer just bought this mustang for his son, so no repair history. Clutch very hard to push and won't shift. Removed trans to inspect damage. Replaced clutch kit due to worn throwout bearing, machined flywheel. The input bearing retainer on transmission need...
2002 Ford Windstar SEL 3.8L noise VIN: 2FMZA53422
Hi guys, Ive got a head scratcher here. I have this windstar thats killing me. Its got a whining noise coming from the evap purge solenoid on the firewall. it happens intermittenly. We replaced the purge and it didnt help. If i disconnect the vapor hose that g...
2004 Ford Freestar 3.9L Stall VIN: 2FMZA50664
This van will stall intermittently at just off or at idle. In addition it will act at highway speed as if the ignition was cycled off resulting in a hard jerk.It will also stall at low speed(20mph). Restart may require up to 10-15 seconds of cranking to restar... Trouble codes: P0401
2005 Ford Taurus SEL 3.0L MIL Lamp on VIN: 1FAFP56S65
Don't know where to start but have a hunch that the computer took a lightening hit. This vehicle runs great which is real surprizing but all the warnings lights are "ON"in the cluster. The only gauge that appears to work is the fuel gauge. All other gauges are...
2005 Ford F-250 Super Duty XL 6.8L Cuts out VIN: 1FTSX21Y05
First post, i need help from ford techs. Vehicle lacks power on accelaration. Pressures at 38 psi and drops down to 5 psi on accelaration. Checked fuel pressure with a inline gauge. Command fuel pressure duty cycle on snap on verus and pressure increases at ti... Trouble codes: P0191 (Fuel rail pressure range performance)
2005 Ford F-150 XLT 5.4L Engine VIN: 1FAFT12T55
first sorry about the vin as I am home while posting. This truck was purchased at auction by a local dealer. When he brought it in he had his tech change plugs for slight misfire.After breaking 5 plugs and extracting them,it seemed slightly better,so he sold i...
1999 GMC C-Series Topkick C6H042 7.4L Electronic VIN: 1GDJ6H1D5X
Compaint was parking brake knob was broken, brake warning light and buzzer are on. Replaced broken parking brake knob and switch. Found parking brake did not hold. Found drum at rear of transmission came off. Remounted drum with new bolts. Now parking brake wo...
2002 GMC Envoy XL SLT 4.2L MIL Lamp on VIN: 1GKDT13S42
I have tried to resolve this problem for 6 months and still getting codes po1271 accelarotor pedal sensor 1 and 2 corelation Cruise does not work when this occurs, Replaced; Accelerator Pedal Sensor twice kept getting code and thought first one was defective..... Trouble codes: 1271 (app sensor 12 corelation), 1275 (reduced engine power)
2008 GMC Acadia SLT 3.6L evap core VIN: 1GKER23758
Hey GM guys, We have a 08 GMC Acadia in the bay, it came in for no ac, we sucked out the system and the system was empty, our policy is to recharge the system with dye, and allow the customer to drive the car for a couple of weeks. It came back in and the eva...
2008 GMC C5500 Topkick C5C042 6.6L MIL Lamp on VIN: 1GDE5C1958
This is a tow truck that belongs to a good friend and has been driving me crazy since July; I'm hoping someone can help steer me in the right direction. It all started in June when the owner replaced the air filter as routine maintenance. The filter was a dea... Trouble codes: P0101 (MAF sensor performance)
1992 Honda Accord LX 2.2L transmission VIN: 1HGCB7659N
This vehicle was brought in with a lack of power condition. By the was it is owned by a nice little 70 year old lady. Found the trans was starting out in high gear. D4 light on. Attemted to flash codes the procedure asks to clear the PCM to make sure it is not...
2003 Jaguar S-Type 3.0L transmission VIN: SAJEA01T63
This vehicle came in on the hook because the customer could not get it out of park. After a quick power and ground check we found that there was no ground being supplied to the release solenoid. Checked wiring schematics from Alldata and Mitchell and they are ...
2006 Mazda 6 i 2.3L Misfire, MIL Lamp on VIN: JM1GG12L56
runs very rough especially when cold. has been to two dealers & multiple independent shops.The "story" goes that it ran fine until the engine blew & was replaced with a used engine. Has not run right since. Checked compression:150 psi all cylinders; checked ... Trouble codes: P0302 (Cylinder 2 misfire)
2002 Mercedes-Benz C230 Kompressor 2.3L MIL Lamp on VIN: WDBRN47J02
02 c230 Kompressor p0101 Mass airflow sensor implusibile. I found oil in cam positioner harness, replaced short harness and checked rest of it up to the pcm. Smoked intake found two hose leaks and repaired. Fuel pressure tests good. FUEL trims stft 2% ltft 5%.... Trouble codes: P0101
2003 Mercedes-Benz SL500 5.0L Tach, Headlamps, Waring Indicators VIN: WDBSK75F43
on start up several indicator lamps flash on/off, lights flash on/off (headlamps&door)TACH comes on/off , this usually only happens on cold start or after vehicle has been off for a while. Problem lasts 5-10 seconds then everthing returns to normal.. sometimes...
2004 Mercedes-Benz C240 4Matic 2.6L Rear Spring VIN: WDBRH81J74
Hi, i have this 203 4mattic with a sprong noise in rear over bumps, i know it needs rear springs. My queston is do i need a spring compressor or can i just remove the inside control arm bolt and use a jack to remove and replace the spring. Thank you, roland
2006 Mercedes-Benz ML350 3.5L Air conditioning VIN: 4JGBB86EX6
hello mercedes techs The A/C system is not cold and the cooling fan for the radiator is working at high speed at all the times is this due to the components that had the codes?, my technician that did the work, can not find the ammbient temperature display se...
2008 Mercedes-Benz E350 4Matic 3.5L controller VIN: WDBUF87X48
help mercedes techs, customer caught a rock to the condenser,system leaked out and a/c light started flashing.we replaced the condenser, charged the system and now we are trying to figure how to reset the controller to get the light to stop flashing and restor...
2010 Mini Cooper 1.6L Poor Idle Quality, Stall, MIL Lamp on VIN: WMWMF3C5XA
Hi thanks in advance for any help. We got this 2010 MINI in with the N12 engine. Customer complained of stalling, code P0015. Clear it and immediatly returned after short drive. Intermittantly the idle will surge, missfire and stall. Swapped exhaust cam sensor... Trouble codes: P0015 (Exhaust cam over retarded)
2003 Mitsubishi Montero Limited 3.8L No Start, Cuts out, Stall, Poor Fuel Economy VIN: JA4NW51S93
I'm hoping someone has seen this or has an idea of where to go. Customer had this truck towed in saying that it died out on the highway as well as hearing a grinding noise. Tried to restart it and it wouldn't so they had it towed to us. Once we got it, it star...
1990 Nissan Pathfinder XE 3.0L starting system VIN: JN8HD17T0L
We have a 1990 nissan pathfinder, manual trans, 3.0L that is having a hard time cranking. 2 years ago we replaced the starter with a OEM starter and that seemed to take care of the no-crank problem then. A month ago the customer brought the car back to us agai...
2003 Nissan 350Z 3.5L noise in all gears except 5th & 6th VIN: JN1AZ34E43
this trans has noise at stand still clutch out,quiet with clutch depressed,noise in all gears except 5th & 6th.pulled trans,disassembly shows cluster & mainshaft pilot bearings are smooth but look like aluminum may have passed through them.the input gear and m...
2003 Nissan Altima SE 3.5L Misfire VIN: 1N4BL11E03
I use a Snap On Modis with software version 11.2 - does anyone know how to view misfire data - Snap On Diagnostics tell me it is not possible... anybody know the test ID & component ID to check misfires on this Nisaan? Trouble codes: P0301 (Misfire cylinder 1)
2004 Nissan Maxima SE 3.5L No Start VIN: 1N4BA41E74
Hello, I have a 2004 maxima towed in. It has been to 6 shops and no one can fix it. first i started by checking codes and could not communicate with ecm, but I could with other modules. At this time i checked basics at fuses and found fuel pump fuse blown. I d...
1996 Plymouth Grand Voyager SE 3.3L Stall VIN: 1P4GP44R7T
Good morning all, i can use some help again, thanks customer bought this van in some it will die intermittenly uses starting fluid to restart but some times as to use it 4 or 5 times check engine light has been on forever. This problem just started. On the sca... Trouble codes: 11 (Intermittent loss of crank reference)
2004 Pontiac Grand Prix GTP 3.8L air bags VIN: 2G2WR54434
Car has codes B0026,B0044, open circuits in both deployment loops. I have no continuity between the four wires in the clockspring connector below steering column and SDM module connector. The wires are not grounded. Wiring diagram shows only one connector betw...
2003 Saturn Vue 3.0L Cuts out, Stall VIN: 5GZCZ63B13
I have 2003 saturn vue with the 3.0l v6 that will stall/cut out after 20 min drive. have replaced the crank sensor, ignition switch and bcm. sometimes it will only cut out and continue running and other times it will cut out and die. the only code i get is p16... Trouble codes: P1629
1995 Toyota Tacoma DLX 2.4L Hesitation, Cuts out, Stall, Misfire VIN: 4TAUN53B1S
this truck come in and guy said his fuel pump is going out. ask us to replace it. because it won't accelarate. so we replaced it and the filter.still falls on its face when u give it air.stubles and will backfire at times. theres no dtc's all looks normal on s...
1998 Toyota Tacoma SR5 3.4L No Start VIN: 4TAWN72N0W
I have this 98 taco 3.4 it was brought in to my shop for a t/belt h2o then sent for an alignment. When I picked it up from the align shop I got only 20 yards and it chugged and died. I was able to crank it and it would run for only 10-15 sec. then die. I have ...
2004 Toyota RAV4 2.4L MIL Lamp on VIN: JTEHD20V24
Toyota techs have any of you seen a problem like this as we have twice, both times on 2.4L4, This one is a 04 Rav4 the first one was a 02 Camry. Customer brought it in for the Check Engine and VSC lights being "ON" and no drivability issues, problem is on our ...
1999 Volkswagen EuroVan MV 2.8L Tansmission hesitate to angage when cold VIN: WV2EH270ZX
Hello Friends On this EuroVan camper in very good condition, customer complaint that the Transmission when put in drive, hesitates to go in drive or move, when a big hesitation and it engages there is no more problem, untill the vehicle is cold again this is ...
2003 Volkswagen Beetle GL 2.0L cts drops to 40 neg VIN: 3VWCD21C33
when driving cts drops to -40deg short term -98.5 long term -25.3 then it starts to missfire i dont wont to replace pcm and have some thing else bite me in the well i dont have a scaner with oem only genarick.i was hoping a vw tech coulu inlighten me thanks.
2005 Volkswagen Jetta 2.5 2.5L Poor Idle Quality VIN: 3VWPF71K75
Car just bought by used car dealer. Had missfire and leaking air intake code. P2279.cleared all codes and test drove code p2279 came back. Checked cam timing mvd 93 field 4. Sarts at -2 and raises to -16 at idle. Cam timing problem. My question is. What is nee... Trouble codes: P2279 (Leaking air intake system)
2007 Volkswagen Beetle 2.5 2.5L A/C Compressor VIN: 3VWFF31Y37
Greetings, I have a 2007 Beetle, Came to shop with A/C not cooling. We change the A/C Compressor(new)(Two Serpentine belt type) new drier, new pressure switch, installed proper amount of oil(4.6),installed proper amount of R134A(1.35-1.5 lbs). Have checked Fus...
1976 Volvo 242 2.1L No Start VIN: VC24245E10
Hello thanks for your time, I'm getting fuel all the time the key is on pump is running flooding it horribly leaking fuel from the intake manifold. my question is what is making this pump run all the time, should it be running all the time the key is on? Shoul...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW 325i 2.5L No Start VIN: WBAAV33481
Thanks to everyone, we got a new kew aqnd thats took care of the problem...agin thanks. after we reset the key the imoblizier began to function agin. A simple fix the my guy had missed. That is the benifit of a second pair of eyes
2004 BMW X3 2.5i 2.5L Starter VIN: WBD389E329
easy money, just R&R the valve body, pulled the shifter rod and replaced the switch. thanks to all those who responded
1997 Buick Park Avenue Ultra 3.8L Stall VIN: 1G4CU5210V
Well, thanks to eveyone for their suggestions. First of all, a new ign switch did NOT fix this problem. I didn't see any faults with ign feeds at pcm but still did the switch for the possibility of weird interactions with other modules going down. No dice- the... Trouble codes: U1255 (ABS module-class 2 comm fault), C1276 (ABS module- torque signal ckt fault), U1016 (BCM- lost comm with PCM), U1255 (ABS module-class 2 comm fault).
1997 Chevrolet K2500 Suburban 5.7L R/R Drum VIN: 1GNGK26R6V
we replaced the r/r drum and shoes again with dealer parts and the r/r emergency brake cable from the dealer. seems to be fixed thanks for the help and replies.
1999 Chevrolet Express 2500 5.7L MIL Lamp on, VIN: 1GBCG29R8X
Thanks to all who replied. Although i was reluctant to replace the VCM, i ordered a remanufactured VCM from my AC DELCO Vendor, installed and reprogrammed and then checked my oxygen sensor data. Everything is functioning as normal so i can safely say its fixed... Trouble codes: P0134.
1998 Chrysler Town & Country LX 3.3L Bcm VIN: 1C4GT64L2W
Thanks everyone for the help on this one, especially John with the info about shorting the CCD bus or grounding PCI lines. We were real lucky here and came to a different solution. After some research by the friendly dealer it turns out both donor and recipie...
2003 Chrysler Sebring LX 2.7L Unknown VIN: 1C3EL45T73
This a more like another update but since I have to close I hope this added info. will give someone an idea on this car. I went ahead and got a factory H-block and a thermo switch that goes into the evaperator. The A/C readings are as follows. Sitting at idle ...
1999 Dodge Durango 5.9L pressure sensor VIN: 1B4HR28ZOX
tested hcu 4.5 ohms,no visual leak,internal failure, replaced hcu,bled system,ok now. Thanks great replies
2008 Dodge Ram 1500 ST 5.7L Hesitation, MIL Lamp on VIN: 1D7HU18258
Thanks to eveyone who took time to reply.I ended up removing the new camsensor and installing another new one with the same part number.Truck started and code did not come back.thanks again Trouble codes: P0340.
1994 Ford E-250 Econoline XL 5.8L Cuts out, engine skips when cr VIN: 1FDFE24H3R
I removed the PCM, open it and has blown capacitor inside that appears to go from ECP and injectors bank 1. I ordered a PCM and will be about a week to get here. This is the smoking gun I was looking for. Thanks all who replied. Trouble codes: 412 (replaced TPS IAC and EGR and solved this KOER code), 111 (no codes store and engine service light is out on KOEO).
1996 Ford E-350 Econoline 5.8L Hesitation, Cuts out VIN: 1FBJS31HXT
replaced pcm run perfect thanks to all that replied, I'm not sure if fluid in transmission connector shorted computer but replaced solenoid pack and pcm.
2005 Ford Explorer XLT 4.0L Poor Idle Quality VIN: 1FMZU73K45
the timely delay in responding i must apologize for, I have no good news, the vehicle did however not start one morning, it would crank but not start. there was no e85 in tank just gas, had customer hold pedal to floor and vehicle started. cleaned maf and thro... Trouble codes: P0174, P0171.
1993 GMC C1500 Suburban SLE 5.7L Stall VIN: 1GKFK16K8P
Thanks for all the valuable replies from my fellow technicians. After reading the replies it was evident that these vehicle have some distributor related problems when the vehicle has high milage and after a full inspection of the ignition system this vehicle ...
2000 GMC Jimmy SLE 4.3L ignition VIN: 1GKDT13W3Y
ok this ones fixed thanks to all you guys help.ive never had this problem as i always mark the distributor very well before pulling it.my coworker not so much he showed me his mark wich was his finger marking a line in the dust on the fire wall next to many ot...
2002 Hyundai Accent GS 1.6L shifts & overdrive VIN: KMHCG35C52
No other codes. Boss man shipped it to the car lot down the street before I got back to it.
2000 Lincoln Town Car Signature 4.6L blower motor VIN: 1LNHM82WOY
Well we decidede to put a dealer blower motor in the car and it working a lot better but still not 100%I notice it mostly at the vents max a/c a little weak, fresh air a/c very weak,the out put is there just not quite hard enough.This one really gots me baffle...
1997 Mazda CX7 2.3L Mechanical VIN: JM3ER29377
Thanks for all of the help. I have not fixed this car yet (it is my own - it has to wait until not so busy). But it sounds like the common denominator here is the timing chain and the VVt hub. I will make a new post when i have fixed it.
1995 Oldsmobile 88 Royale LSS 3.8L oil level sensor VIN: 1G3HY52K9S
Well, most of you said 7 out of 10 replies, that it is most likely the oil level sensor. I most likely disturbed it while changing the pan gasket. My advice would be to remove it before doing a oil pan on one of these cars. I have a new sensor to put in and ha...
2002 Subaru Forester L 2.5L differential VIN: JF1SF63592
We ended up replacing both front axles to eliminate that as a possible source of the noise. From the replies we recieved regarding this problem, we suspect that the all wheel drive system is the source, but the customer declined further diagnostic work.
2000 Toyota Land Cruiser 4.7L Lighting VIN: JT3HT05J6Y
2004 Toyota Tacoma 2.7L Poor Idle Quality VIN: 5TEPM62N44
Thanks for all the help I rechecked everything and was ok so I replaced iac valve and it is ok now I am not sure why it went bad.
2007 Toyota Tacoma Pre Runner 4.0L gauges VIN: 5TETU62N07
Andrew was correct about this vehicle. Having never had any experience with a lightning strike I had a hard time believing that there wasn't one common problem causing all the symptoms. I spent about 4 hours disconnecting various components,removing the afterm...
2001 Volkswagen Jetta GL 2.0L Shifting VIN: 3VWSK69M51
We replaced the the gear position sensor and serviced the transmission. Put about 200 miles on it and everything is ok. Thanks for all the repies
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