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Prev Professional Automotive Repair Technical Discussions for May 8, 2012
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1995 BMW 740iL 4.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: WBAGJ632XS
car came in with misfire, changed plugs, coil boots, car ran great, next test drive blowimg what appears to be fuel out tail pipes, start car again runs good,shut off restart runs like crap. on this car I have noway to read codes with my genasyse scope .larry
1997 BMW 528i 2.8L No Start, Cuts out, Misfire VIN: WBADD6321V
Hi folks. First of all, I 'd like to thanks for everybody whom spend valuable time for me. Here 97 Bmw 528i giving me headache, misfiring only when cold start about 4-5 minutes, after that runs perfect all day. Most time It doesn't set code, but sometime, like... Trouble codes: P0304
1998 BMW Z3 Roadster 2.8L knock sensor VIN: 4USCJ3324W
This car was brought in to the shop with p0330/ p0325 knock sensor codes. i replaced the knock sensors. Then checked and repaced the spark plugs. the two codes reappear very quickley. The cel seems to pop on after a restart. the runs car runs very well and i d...
2001 BMW X5 3.0i 3.0L Ignition VIN: WBAFA53511
This one has me a bit stumped, and this is the first time I've ever pulled this code using my Autologic. Vehicle towed-in with a no-start (no crank, no clicking, no nothing) issue. 57k on the clock. 1. Battery checks out fine. 2. Power / ground to the start...
2003 Cadillac CTS 3.2L Misfire
Got what should be an easy one for you GoodWrench guys. Got this '03 Cadillac CTS with a 3.2 that loses its pulse signal to the #3 injector. Injector has been replaced along with a used ECM. Same results. Car will have an injector pulse signal for a few minute... Trouble codes: P0303 (Cylinder 3 misfire)
2003 Cadillac CTS 3.2L lifters VIN: 1G6DM57N53
car came in with a broken timing belt. It had smacked some valves. removed heads and sent to machine shop. was told be shop that i needed to replace all lifters, that when they compressed them only 2 had a spring center after compressed. i ordered a new set fr...
2006 Cadillac STS 3.6L steering column VIN: 1G6DW67746
Customer complaint squeak in steering wheel when turning. Removed column tore down and lubed everything quiet on bench found no problems reinstalled. Sitting still or driving slow turning the wheel creats a noise like corduroy pants rubbing together. Lift vehi...
1996 Chevrolet K1500 Cheyenne 5.7L No Start VIN: 1GCEK19R2T
I found the fuel pump relay burned as well as the fuel pump connector in tank and i mean it was really burned bad so bad in fact that the terminal almost fell out but yet it still ran. Even with this occurance the vehicle did provide fuel pressure it wasnt cor...
1998 Chevrolet Prizm 1.8L engine VIN: 1Y1SK5280W
The engine stalls as some as you turn the headlights on. Just like you shut the ignition switch off. But other wise runs OK. Also you can use the blinkers with headlight off & park lights off. But turn on the park lights and use blickers it spudders with the b...
1999 Chevrolet Blazer 4.3L Heater VIN: 1GNDT13W5X
Customer brought vehicle stating that heater was not blowing hot. and vehicle had just been in for a coolant leak in which we had found leaking manifold gasket so updated gaskets were installed. we checked and found all vacuum line attached checked heater at i...
2005 Chevrolet Trailblazer EXT LS 4.2L vehicle speed sensor
PLEASE DON'T RESPOND IF YOU DON'T READ THIS POST IN IT'S ENTIRITY. I'm to my wit's end here guys, need some suggestions. OK, my boss purchased this vehicle with a bad trans. One of our mechanics replaced the trans, and my boss sold the vehicle. The customer b...
2007 Chevrolet Tahoe LTZ 5.3L Misfire, MIL Lamp on, tick noise VIN: 1GNFK13027
Tahoe came in with a complaint of tick noise and miss- wants a tune up an 100000 mile service, is missing on cylinder #6 with an lifter ticking noise, also has service stabilitrac and traction control lights on. Noticed bullitens on replaceing lifters and DOD ... Trouble codes: P0300
2007 Chevrolet Equinox LS 3.4L Shift solenoid a VIN: 2CNDL13F27
Code PO973 Shift solenoid A ( or 1 ) low or shorted to ground. Problem is intermitten when warm defaults to 5th gear. Tcm is prindle switch. Anyone have history with this code. Trying to find pin out for soleniod with tcm removed.
1995 Chrysler Concorde 3.3L control head VIN: 2C3HL56T5S
After repair cust is saying when the a/c switch is turn off but fan is still on and turn off engine and start back up a/c switch turns on by itself is this normal or not please help
2007 Chrysler 300 (Car) 2.7L Cooling System VIN: 2C3KA43R97
Good day. Customer said this car overheated. he added 3/4 of a gallon of coolant and brought it to a shop who said it needed a water pump. He then brought it to me for a second oppinion. The water pump is behind the timing cover, is there a weep hole or a dra...
2007 Dodge Sprinter 2500 3.0L MIL Lamp on VIN: WD0PE74537
first off i would like to thank everyone in advance for all the help. ok this thing came in with the engine light on and the p2454 code. could not find any info on this code , also not sure where the sensor is located. im not familiar with diesel engines so th... Trouble codes: P2454
2007 Dodge Ram 1500 Truck ST 4.7L Poor Idle Quality, Hesitation, Surge VIN: 1D7HU18P57
Looking for some help from Dodge tech,I have an 2007 Ram with a 4.7 flex fuel with a rough idle.Compression is basically 160 PSI across the board.Tested all coils,replaced the spark plugs,flow tested the injectors,fuel pressure is 60 PSI.Had the BG fuel system...
2007 Dodge Caravan SE 3.3L compressor VIN: 1D4GP25R17
Hello everyone, This van came in with the complaint of a/c inop. The compressor is not engaging. Checked for codes found P0645 A/C clutch relay circuit, when checking the circuit I can actuate the relay with scanner and on the scanner (Modis) data stream I ca...
1975 Ford Mustang II 5.0L tach VIN: 5F04F21862
i have this mustang that has a msd ign on it with a after market tach. cust would like oe tach working and aftermarket tach removed.this has msd 6al ign control and msd dist to match. i got tach adaptor msd 8920 they say i need to make it my question ...
1992 Ford F-150 XLT Lariat 4.9L Cuts out, Stall VIN: 1FTCF15Y7N
Truck was brought to us stalling when put into drive or reverse. No codes, all grounds good and extra ones added, good fuel pressure, no intake leaks, no wires pinched between engine and trans, egr good. Cleaned intake and replaced IAC and now is good in drive...
1995 Ford F-150 Eddie Bauer 5.8L No Start, kills battery VIN: 1FTEX15H4S
Ok this started when the costomer started the truck moved it 20 ft shut it off. Tried to restart a few mins later and it did not. When i got it, there was 20 lbs of fuel pressure so we changed the pump and filter. Now there is 45 lbs of pressure still no start...
1997 Ford F-250 XL 7.3L check engine light VIN: 1FTHX25F9V
97 F250 powerstroke, pcm not sensing glowplugs are working, sets check engine light intermmitently. california state emmisions vehicle. Truck came in, glowplugs not working. glowplugs were shorted out, relay wouldnt' work, definitely got hot. Replaced glowplug...
1999 Ford F-450 Super Duty XL 6.8L No Start VIN: 1FDXF4657X
Since engine replacement we have no signal to fire ignition coils. Injector pulse for a few seconds during cranking but then stops, normal operation for a no start as far as I remember. Even though crank and cam signals good replaced any rate due to low expens...
2000 Ford F-550 Super Duty XL 7.3L Hard start VIN: 1FDAW57F9Y
Vehicle is our shop tow truck and was running fine before concern . After a recent tow , start/stall and engine miss was expereienced . After it was cleared out ran fine and drove fine . Next morning experienced extended cranking before start up and noticed no... Trouble codes: P1211, P1212, P1316
2002 Ford F-250 Super Duty Lariat 5.4L courtesey lights VIN: 1FTNX21L32
Hello all, Original complaint was power door locks inop. Would not work by switch or key fob. Traced problem to bad Vehicle Security Module (VSM). This module is located behind dash near radio. Vehicle does not have a GEM. Ordered new part from Ford. Paper not...
2002 Ford F-150 King Ranch 5.4L gear shifter inrerior lights power windows VIN: 1FTRW07L42
i have this truck that is blowing the 5 amp acc. fuse that controls the gear shifter and interior lights and power windows,checked for shotrs at power window switch and also checked for problems with head light switch,the only rel load in the system was the sh...
2008 Ford F-150 XLT 5.4L compressor VIN: 1FTRW12578
I can really use some Ford help.This Truck has no compressor clutch operation. Code P0645. This what I know pin 18 out of the PCM is not grounding the A/C clutch relay.If I manually ground this wire the a/c works great.If I unplug the a/c pressure transducer w...
2009 Ford F-150 Platinum 5.4L Engine VIN: 1FTPW14V59
customer concern: when starting it cold (the colder the worse it is) it will spit and sputter to stay running for only 1-2 seconds, then it seems to clear up and runs good all the rest of the time. it is getting worse with time, and the power is getting less. ...
1995 GMC Jimmy SL 4.3L distributor (cap&rotor) VIN: 1GKDT13W1S
I have a 1995 production date 03/95 GMC Jimmy SLT. With 226715 kms with VCM service number [...]-BABB the vechile has no trouble codes present curently or in previous history. The tack signal is 210 to 250 RPM cranking, there is plenty of spark from the coi...
2000 GMC Sierra 1500 SL 5.3L Oil Level Light VIN: 1GTEK19T3Y
Oil level light on and won't go out. Recently replaced oil level switch because it was leaking oil and the light wasn't on at that time. Checked oil level and thats full. Tried unpluging it and no change. Tried bypassing the switch by jumping the two wires tog...
2003 GMC Savana 1500 5.3L Poor Idle Quality, Stall
Posting a fix, and information. I had a 2003 Savana conversion van with a 5.3 come into the shop with idle issues hot. Vehicle stalled intermittently, scan data showed idle motor adjustment. After cleaning the TB, idle improved some, still [...] occasionally, wi... Trouble codes: P0506
2004 GMC Sierra Denali 6.0L vent VIN: 2GTFK69U64
good morning everyone, customer came in complaint with it not blowing at all in the center vents, it will work fine on floor and defrost. is there a blend door or motor that have a problem . it is all digtal controls thanks
2007 GMC Canyon SLT 3.7L Headlights VIN: 1GTCS13E27
As noted in the repair history this fine truck is back 2k miles after replacing the BCM for no dash lights. Again has code B2624. Both times the dimming potentiometer PID on my Tech2 shows excessive voltage with headlight switch plugged in (7.4v) and unplugged...
2000 Honda Accord EX 2.3L MIL Lamp on VIN: 1HGCG6671Y
I was given this vehicle to diagnose after the cylinder head was removed to replace a burnt exhaust valve on #3 cylinder. The Tech that did the work said there were alot of codes stored, but they were never noted, so I have no idea if this was a pre-existing c... Trouble codes: P1259 (VTEC System Malfunction)
2006 Honda Accord LX 2.4L no throttle VIN: 3HGCM56496
car came in a week ago with a heater core leak. customer told me that she was also having the car stop accel on highway every now and then. i looked at throttle plate and found alot of carbon. since she could just turn off and back on to get throttle to work i... Trouble codes: U0107
2003 Jaguar X-Type 2.5L MIL Lamp on VIN: SAJEA51DX3
I can not get any trouble codes out of my Snap On scanner.Alldata does not show B1165 either. Any help would be greatly appreciated. Trouble codes: B1165
2005 Jeep Grand Cherokee Laredo 3.7L No Drive- No Reverse VIN: 1J4GR48K35
Hello to all, This is a NAG1 Trans. I'm a 35 year automotive tech. but I don't get into the innards of automatic transmissions much. I thought I would be doing a simple leak repair and instead I've opened a can of worms. Thanks in advance for any help. As st...
2000 Land Rover Discovery Series II 4.0L No Start, no crank VIN: SALTY124XY
Thanks in advance for the help.Discovery came in from a friend after sitting for 6 months.He replaced the battery and remote batteries.Alarm goes off as soon as battery is connected.Alarm for 30 seconds goes off. No Power windows,Power locks or seat controls.I...
2005 Mazda Tribute i 2.3L Stall VIN: 4F2YZ02Z85
Ok IATN...this one has really got me. I don't post for help often, but this one might have me beat. Vehicle came in for die-in-flight condition. While driving on the highway(going about 65-70) and stepping on the brake pedal while approaching traffic or coming...
1986 Mercedes-Benz 420SEL 4.2L Fuel Injection VIN: WDBCA35D2G
I had purchased a couple of used fuel distributors off Ebay. One was a Bosh rebuilt unit in good condition. The Bosch rebuilt FD ran well for about a year. "Cracking" each line at the fuel Dist at idle I found the #1 cylinder was not oozing fuel like the other...
2003 Mercedes-Benz C230 Kompressor 1.8L Engine VIN: WDBRN40J53
Came in with an occasional check engine lite on...misfire code and oxy sensor...discovered oil blowing from fill cap, and area around front plugs pooled oil at manifold...engine runs good...misfire under 15 counts the pcv valve, which other than mechanical pro...
2005 Mercedes-Benz S55 AMG 5.5L Vents VIN: WDBNG74J55
hello fellow techs. I have this amg kicking my grass... While driving, no matter how hot out side, the drivers a/c vents are about 10 to 15 degrees warmer than the passenger side. I posted something before about this problem, and so i replaced the evap sensor ...
2011 Nissan Murano LE 3.5L Misfire VIN: JN1TANZ51Z
Hi, This vehicle has lack of power and I cant accelarate more than 4500RPM on the road but it revs full range inside the shop.No codes found and previous shops have already changed the fuel pump, fuel injectors and spak plugs. Any ideas about this problem?
1967 Pontiac Firebird 400 6.6L Surge, Poor Fuel Economy
looking for alittle guidance from somebody that knows ALOT about tuning a large cam pont. with an edelbrock 1406. after heat soak, it has extended crank. fuel economy is piss poor. you can adjust idle screws all the way in on front of carb without it changing ...
2008 Pontiac Grand Prix GXP 5.3L Erratic Shift VIN: 2G2WC55C48
Vehicle came in with an erratic shift. Had U0073 stored. Snap on scanner defines it as Control Module comm BUS off. When I clear the code the transmission shifts perfectly. After clearing the code it can take anywhere from 5 mins to 10 mins to set again. Also ...
1981 Porsche 924 Turbo 2.0L No Start VIN: WP0AA0934B
This car is a crank no start .It has no spark and no ground pulse to the coil. I replace the Coil and the Igniton Control Module ,and checked the flywheel/crank sensor for contenuity , sensor checked good and the wiring from the pcm to the flywheel sensor also...
2002 Saturn Vue 3.0L No Start VIN: 5GZCZ63BX2
Saturn tects, have this vue that came in shop with lean codes and engine miss. tighten air plate and clean maf for lean codes. pulled intake to inspect #5 cyl and coil. replaced all spark plugs and boots. drove car about 8 miles and miss stiil there when hot, ... Trouble codes: P1629, U2107
2008 Subaru Outback 2.5i 2.5L MIL Lamp on VIN: 4S4BP61C98
Vehicle comes in with check engine light on.retrieved codes for both 02 heater circuits.removed front 02 and found no power on pin poer to rear 02 heater either.found blown fuse for heater relay and throttle module relay.(sbf-7)replaced fuse and rechecked... Trouble codes: P0037, P0031
1988 Toyota Pickup 3.0L Poor Idle Quality, Hesitation, Misfire VIN: JT4VN63C5J
Customer stated to me the he went out to his truck one morning to warm it up for 10 minutes and he heard the truck running rough and then died and wouldn't restart. engine would crank but would not hold an idle. I got to the vehicle and tried getting codes but...
2001 Toyota Avalon XL 3.0L code 1155 VIN: 4T1BF28B91
Hi All thanks in advance for taking time to look at this post. What I have is a 2001 toyota avalon 3.0l. customer complained of smoking and heavy oil compsuntion. replaced engine with a used engine that came complete with wiring harness. installed new motor fi...
2002 Toyota RAV4 2.0L No Start VIN: JTEGH20V12
HI there everyone and thanks for the advice on this one. I have this RAV4 that was towed in for a no start condition. It cranks fine but won't go. I plugged in first to check for codes and found no communications. I tried global OBD2 and then went in and enter...
2007 Toyota Tacoma 4.0L 1st and 2nd gear
How's it goin guys. I'm based now in the philippines. I'm actually working on a 2007 toyota fortuner A/T 3.OL D4d diesel 4x4. toyota flatformed this one on the hilux. It has a hard shift on 1st to 2nd and 2nd to 3rd, all the time hot or cold. this one uses a A...
2006 Volkswagen Jetta GLI 2.0L Misfire, MIL Lamp on VIN: 3VWXJ71K46
The car came in with an intermitant c.e.l on. On cold start-up cyl #4 will misfire for a short time and then run normal after that until the next cold start. First we swapped ign coil and plugs between cyl 3-4. Code po304 set on the next cold start. After expl... Trouble codes: P0304
1994 Volvo 940 2.3L MIL Lamp on VIN: YV1JS8319R
we have this volvo(LH 2.4/EZ-116k)with codes 241 egr flow fault and 251-unknown fault,can not find a description for code 251,would like to know if anyone has a desription of code 251 Trouble codes: 251 (unknown), 241 (egr flow fault)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1992 Acura NSX 3.0L ABS Unit VIN: JH4NA1151N
Well everybody was pretty much in agreement that jumping the pump was the way to do this job without the tool. It bled out just fine and the customer is happy. We still have two customers that own NSX's and we want to try to keep them on the road as long as we...
2004 Audi S4 Avant 4.2L Poor Idle Quality, Misfire VIN: WAUPL68E04
The vehicle is still in the facility, although now we are waiting for a replacement cat for the right side. The block disintegrated and blocked the exhaust. Trouble codes: P1543 (Throttle valve sensor signal too low sporadic), P1172 (Throttle valve position sensor signal too low), P1630 (Accelerator pedal position sensor signal too low), P0507 (Idle control system rpm higher than expected).
2003 Chrysler 300M Special 3.5L O2 sensor VIN: 2C3AE76K63
Thanks to all that replied. I tooks most advise and put a o2 sensor in from Chrysler. Check engine light came on within 5 minutes. Bit the bullet and put a ECM I'm the car. The car set monitors and the cel stayed off. Still do not understand how a car can se...
2007 Dodge Sprinter 2500 3.0L MIL Lamp on VIN: WD0PE74507
This one is fixed,Thanks to Robert [...] Mark who nailed it for me.Tested mass sensor and was way out of range put in a new maf plus air filter and all is well in Bluetech diesel land.I dont know why I did not head in that direction in the first placr I fix a lo... Trouble codes: P2355, 3155 (intake air monitoring value below limit).
1987 Ford F-150 Custom 5.0L Serpentine Belt squeal VIN: 1FTEF14N8H
First I want to thank all of you for your quick respondes. I had my customer bring his truck back in and I checked the crank end play and there was so much movement it startled me :). Call Jasper today and they're sending me another engine. I really appreciate...
1999 GMC K1500 Suburban SLE 5.7L Driveshaft VIN: 3GKFK16R6X
We concluded the front differential was the problem. Since the customer did not want us to pursue a solution there, we tweaked and tuned the front drive-shaft as much as we could. The noise is perceptible only if you're really paying attention.?? It's up to th...
2000 GMC Yukon Denali 5.7L keyless entry VIN: 1GKEK13RXY
cust declined any further time. Sorry for the lack of info. Thanks to those who took time to help.
2007 Honda Fit Sport 1.5L Fuel Injector VIN: JHMGD38677
2000 Hyundai Sonata GLS 2.5L Misfire VIN: KMHWF35V7Y
Hi everyone. Finally this car is gone. Installed a reman computer which caused two misfires,2 dead Injectors now..Ordered another reman, then the car would not start with no spark or injector pulse..Pulling my hair out at this point. Picked up a new computer f... Trouble codes: P0302.
2003 Infiniti G35 3.5L slip and vdc lights come on VIN: JNKCV54E63
abs module tested bad but cuctomer didn't want to spend the money to have it replaced, internal battery wasnt holding a charge to keep stored information as far as the steering angle position causing the car to activate the abs thinking the car was going into ...
1991 Jaguar XJ6 Sovereign 4.0L Hazards (4 ways) VIN: SAJHY174XM
OK after much looking for the alarm . keyless entry module, I have found that My Parts man at the dealer was in fact correct, this car was not shipping with key-less remote option,, so, I located the so Called Central processing Unit ,, tucked up behind the d...
2000 Jaguar S-Type 3.0L message display VIN: SAJDA01C1Y
thanks for all the usefull replies,very helpfull and learned a lot,yes thers was signs of dried water in trunk about 1/2 inch it looked like water been in there for long,cked around battery very good,all the wiring,junction box looked very good,vent to module ...
2001 Jeep Grand Cherokee Limited 4.7L radiator VIN: 1J4GX58N01
Removed water pump found plastic impeller seemed tight placed in hot water impeelr started to slip replaced pump all ok
2002 Mercedes-Benz SL500 5.0L Esp C1504 & C1140 VIN: WDBFA68F32
It took a factory merecedes tool to get this esp system to work my tool would not do it, I could see data but it would not intialize no matter what. i had tried every trick in the book but in the end it took a dealer to reprogram this system unfortunatly for u...
2003 Mercedes-Benz ML350 3.7L diagnostic data conection VIN: 4JGAB57EX3
thank you to all who responded ,, thank you to mukesh there is still no pulse or signal on the k line or communication from any module i will check as much as possible and repost my findings thank you again Ron
2003 Mini Cooper 1.6L Headlights VIN: WMWRC33423
Thanks to those who replied. Turned out to be a voltage drop in pin 27 of the white BCM connector only under load. Fuse 4 had corrosion across the element.
2007 Mini Cooper 1.6L Draw VIN: WMWMF33587
Thanks for the responses, special thanks to John from New York Make sure all the computers are going to sleep sounds like 1 is not check each computer and see if any of them stay warm that means it's not shutting off. We figured there was a coputer not going t...
1998 Oldsmobile Intrigue GL 3.8L Misfire VIN: 1G3WS52KXW
well after going back and checking, found that the vacuum was fluctuating at idle, and there was a slight rattle. raised the rpms and the rattle was slightly louder. pulled the valve cover and listened to the rocker arm and the lifter on #5 intake is loose pos...
2006 Porsche Cayman S 3.4L Stall, MIL Lamp on, Hot start/Hot soak VIN: WP0AB29876
Thank you so much for the 3 responses!!! Turns out that both Jeff and Ronald were correct. After my up-date post I found and repaired the vacuum leak at the throttle body. Further testing turned up a P0441 DTC, this turned out to be the vent solinoid under the... Trouble codes: P2189 (System Too Lean at Idle).
2003 Saab 9-3 Linear 2.0L compressor VIN: NXX2052563
Believe it or not a new condensor pressure switch fixed this vehicle. Here's the good part. You would only see the 5 volt reference if the good pressure switch was plugged in. The moment you unplugged it the 5 volt reference would go away! I guess the school ...
2005 Subaru Outback XT 2.5L No Start, VIN: 4S4BP67C95
2007 Subaru Legacy 2.5i Limited 2.5L blower VIN: 4S3BL62687
Fix was a new blower motor, after inspecting all wireing and connectors we could not find any trouble so customer agreed to a new OEM blower motor. All is well after a couple of weeks.
2003 Toyota 4Runner SR5 4.0L compressor VIN: JTEBU14R73
Thanks everybody for the help. Replaced the AC clutch relay as alot of the emails said. Installed yesterday and everything seems to be working okay. Thanks Again
2008 Volkswagen Passat 3.6 3.6L parking brake
the car is fixed,thanks to all that replied.I had already stated that there were no codes and that I had did a battery disconnect to no avail.after a good nights sleep I realized my mistake.first and foremost do not try retracting calipers while the calipe...
1996 Volvo 960 2.9L Air Flow/No Compressor VIN: YV1KW9609T
Thanks for all of the input. I am pretty sure that the control head is the problem, but with the milage,the customer is going to hold off on the repair for now.I tried the fix a flat in the vac servos,did not work on this job,may try on another.Made the instal...
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