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Prev Professional Automotive Repair Technical Discussions for August 10, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
2009 BMW 335i xDrive 3.0L head gasket VIN: WBAPL33579
need removal procedure and any special tools needed
2005 Cadillac CTS V 5.7L Mechanical VIN: 1G6DN56S05
Fellow techs, we have a cadillac cts-v 5.7l w/ t56 manual trans. That has a hard time getting into reverse and clutch pedal has a delayed release when shifting at high rpms (5000+) gm has a service bulletin on the pressure plate/date code in these cars, my que...
1995 Chevrolet K2500 Suburban 6.5L No Start VIN: 1GNGK26F8S
Got a tough one here (for me!). Towed in cranking no start. We had installed new injection pump and PMD (update kit) two years ago. Confirmed lift supply and good volume and pressure indicated up to injection pump. Installed clear line at inj. pump and no air ...
1996 Chevrolet Blazer 4.3L MIL Lamp on
Have a 96 blazer 4.3 liter. Need some insight from the GM techs out there. Keeps setting p0143 for post cat o2 low voltage. The truck has the correct catalytic converter and the correct rear o2 sensor. Sometimes it takes 2 days for the code to return, but it a...
1996 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13W8T
Vehicle came in for a check engine light PO301, tech thought he had a bad plug and an ignition tune-up was done, car came back 2 day later with light back on same code. Found mis-fires at idle on modis. Tech thought intake was leaking, so intake gasket was rep... Trouble codes: P0301
1999 Chevrolet C3500 5.7L Hesitation, Cuts out VIN: 1GBJC34R5X
hi there and thanx in advance we got this truck in with a complaint of truck cutting out and check engine light onand cutting out running rough. Now I found that the harness behind alternator came out of clip and melted on manifold, repaired wiring and found t... Trouble codes: P0151, P0335
2002 Chevrolet Silverado 2500 HD 8.1L Transfer cas VIN: 1GCHK29G02
This problem vehicle first arrived with tansfer case stuck in 4lo and would not shift out.Found transfer case fluid low,encoder motor siezed and 12 volts reference voltage from control module(Alldata specs are 8 volts)No codes.Replace encoder motor and control...
2002 Chevrolet Avalanche 1500 5.3L Unknown VIN: 3GNEK13T42
This truck came in with a noise we thought was a belt squeak. We removed both belts and the noise is the same. At idle it sounds just like a belt noise and off idle it is more of a rattle. We have run it and killed the cylinders one at a time and this did chan...
2003 Chevrolet Tahoe LT 5.3L Steering Pump/Box VIN: 1GNEK13Z33
I have this 2003 Chevy Tahoe It has 140,000 Miles on it. I just purchased it and the steering is very very easy to steer. It feels like absolutely no resistance. It sort of seems ok in parking lots but 60 mph on highway it is scary. I have checked front end an...
2003 Chevrolet Silverado 1500 5.3L Misfire, lacks power VIN: 2GCEK19T73
Hello to all and thanks for any help in advanced. This truck was towed into us for what the customer thought was a transmission issue.customer stated he was driving down the interstate running around 70mph when the truck started to loose power and got to a poi... Trouble codes: P0118, P0172, P0175, P0300, P0446
2004 Chevrolet Colorado LS 2.8L MIL Lamp on VIN: 1GCCS19844
Codes p2101 P1562 both related to ETB I checked 5volt reference and have both KOEO. My wiring only shows the 8 wire connector at the ETB for a diagram it doesn't show any other real info is there more to testing the ETB? Modis shows TP 1% at KO. and 30-33%TP... Trouble codes: P2101 (Control Module Performance), P1516 (Tac Module Performance)
2001 Chrysler Town & Country LX 3.3L melts transducer
Thanks to all in advance, this van came to us with a EGR efficency flow problem so we replaced the EGR VALVE the EGR Transducer and cleaned the EGR Passage where it bolts to the intake. test drived the van and when we returned to the shop the engine lite came ...
2007 Chrysler PT Cruiser Limited 2.4L a/c orfice VIN: 3A4FY58B17
Customer complains of noise/bang when A/C is first turned on in morning. Validated concern after 7 hr cold soak: turn on a/c, compressor engages and a few seconds later I get a bang and see and feel the accumulator-receiver/dryer shift/jump. Not repeatable unt...
2008 Chrysler Town & Country Touring 3.8L Cuts out, Misfire, MIL Lamp on
the van failure in acceleration loaded o deceleration close 2000 rpm ,you might need to reread the crank sensor ? Trouble codes: P0339, P0300, P1129
2001 Dodge Ram 1500 Van 3.9L rear brakes VIN: 2B7HB11X61
noise and severely cracked rear brake shoes. original shoes replaced 7k ago by another shop. unknown of quality. noise started occurring when braking 1 month ago. also grabbing feel when braking. inspected found rear shoes severely cracked and brittle 70% of s...
2007 Dodge Sprinter 2500 3.0L sticks in 3rd gear VIN: WD0PE84557
replaced tcm and had it programed at chrysler. original code p0733 in original tcm but truck always stuck in limp home mode. even after clearing the code it is still stuck in 2nd gear. scanner says limp home mode on. can clear code in new tcm but as soon as tr...
2001 Ford Taurus SE 2-Valve 3.0L Poor Idle Quality, Surge VIN: 1FAFP55U31
This taurus will not idle correctly. Sometimes as you drive through town you notice a higher idle at 1600 rpm in gear at the stop light and you have to hold on the brakes hard then you take off and its ok. Sometimes as you slow down its at a high idle then dro...
2002 Ford F-350 Super Duty Lariat 7.3L all VIN: 1FTSX31F22
This truck came in with a vibration while braking so we replaced the pads and rotors it got rid of the back and forth vibration in wheel but it still has a vibration at 30mph to 20 mph when you take your foot off the gas pedal.When you hit the brakes to slow d...
2005 Ford E-250 5.4L No Accelerator VIN: 1FTNE24L55
Thanks in advance for any help I can get with this one. Vehicle has electronic throttle control. Throttle position sensors graph good. Warm up vehicle. Drive down road. Wrench light comes on and have no acceleration. Will only idle when I try to accelerate. Pu... Trouble codes: 2107 (Throttle actuator control motor processor), 2110 (Throttle actuator control system - forced limited rpm)
2006 Ford F-250 Super Duty XLT 6.0L Long crank time VIN: 1FTSW21P96
In process of replacing injectors on this beast, (the 6.0L is my arch-nemesis) Had 3 dropping out, started with right bank. Replaced all 4 on right bank and started it to see if it was any better. Had long crank time immediately after repair and I assumed it w...
1997 GMC Yukon SL 5.7L Mechanical VIN: 3GKEK18R3V
Group, Attempting to upgrade from a 10" drum to an 11" drum on a 1997 GMC Yukon 2 Door, 4wd. My truck, and I also own a 1999 of the same truck in a 4 door with 11" brakes. From what i can see, of course the backing plates, shoes, hardware, adjusters and cylin...
2007 GMC Yukon XL 1500 Denali 6.2L Liftgate Module VIN: 1GKFK66807
Decided it needed a liftgate module and know it needs to be reprogramed. We got the appropriate GM Tech 2 program but can't figure out how to get it onto the hand held Tech 2 system we have. Plugged it into the computer and nothing. Searched the entire website...
1992 Jeep Wrangler 4.0L No Start, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 2J4FY29SXN
Hi everyone we are having a problem with this one-hope someone can help.its a 1992 jeep wrangler-automatic-4.0 6 cylinder.sometimes it just cranks but does not start-fuel pressure is good and has spark-code for crankshaft sensor,cam sensor and coolant sensor-... Trouble codes: 22 (Coolant sensor)
2006 Mazda 6 Mazdaspeed 2.3L Excessive carbon VIN: JM1GG12L76
I have a Mazda Direct injected that has excessive carbon build up on valves. Has anyone had a successful solution for cleaning besides BG injection clean, or Sea Foam.
1992 Mercedes-Benz 400E 4.2L Battery VIN: WDBEA34E1N
Hello all you Benz techs out there. This is Tim from Bills Auto in Kingsport, TN. I am working on this 1992 400e that has an ignition off draw. When I first started looking at this, the draw was about .4 amps and would drain the battery overnight. I started pu...
1998 Mercedes-Benz ML320 3.2L engine cranks, no start - VIN: 4JGAB54E7W
Hey Guys, original owner, well maintained. Drove to store, parked for about 45 minutes, then no start - engine cranks. Towed to shop. No codes other than faulty fuel level sensor ( that code has been there for about 9 years )I replaced the crank sensor, even ...
1997 Mercury Villager GS 3.0L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 4M2DV1111V
When engine compartment gets warm about 20-30 minutes of running engine starts running bad o2 reads lean, blows black smoke, stalls, and pcm sets inj. Pulswidth up to max 13ms. I could use some help we are stumped on this on
2003 Mercury Mountaineer 4.6L Oil VIN: 4M2ZU66W53
oil gets in water slowly...ok here is the problem,truck was loosing water very slowly so i put pressure tester on radiator and left over night,found oil level higher the next day.removed drain plug and clean coolant ran out.removed heads thinking the only way ...
2002 Nissan Maxima SE 3.5L MIL Lamp on VIN: JN1DA31D12
Thank adv. to all. I have this nissan 02 maxima 3.5 v6 . Check engine light 0n po1167. Bank 2 sensor 2 problem. scanner solus live data bank 2 sensor 2 reading at idle o.28 raise up idle to 3000 rpm still the same 0.28 Test drive on the freeway when up a lillt... Trouble codes: P1167
2006 Nissan Pathfinder SE Off-Road 4.0L key code VIN: 5N1AR18W96
i just bought a 2006 nissan pathfinder . it only has 1 key so i am looking for key code so i can program another key vin [...] bcm numbers sae j1690 dot 284b1 zp0lc 6126 951a4 thanks
2001 Pontiac Grand Prix GT 3.8L no inj pulse VIN: 1G2WP52K71
2001 Grand Prix. No codes.No start. No Inj pulses, weak spark.I Only have 11 volts at Injection fuse (#18 10amp under hood fuse box) If I Jump full battery voltage to fuse, car starts and runs fine. Without jumper wire no start. My alldata does not show what f...
2008 Pontiac G6 GT 3.5L No Start VIN: 1G2ZH17N78
Hi all, vehicle towed in with no start. All I have is error message on odometer. No communications with any modules in vehicle. I checked all fuses and visible connections at modules and tested data link pinouts , all fine. Not sure where to go with this one b...
1999 Porsche 911 Carrera 3.4L MIL Lamp on VIN: WP0AA2992X
Need some help from the Porsche experts as I do not work on many of them. New customer came in with this car. CEL is on with listed codes. He recently had all 4 oxygen sensors replaced elsewhere for the CEL along with the A/C compressor. CEL came back on sho... Trouble codes: P0410 (Secondary air system bank 2), P1411 (Secondary air system bank 1), P1128 (Oxygen sensing adaptation idle range bank 1), P1130 (Oxygen sensing adaptation idle range bank 2), P1123 (Oxygen sensing adaptation upper load range bank 2), P1125 (Oxygen sensing adaptation upper load range bank 1)
1999 Saturn SL2 1.9L Poor Idle Quality, Misfire VIN: 1G8ZK5273X
this comes to me from another shop with po336 crank sensor performance code and terrible idle, wont run over 2k rpm and just cuts out and sputters, initial check found connector at ckp butt spliced several times, started out replacing with new delco pigtail an... Trouble codes: P0336 (cam position sensor performance)
2005 Subaru Outback i 2.5L Surge VIN: 4S4BP61C65
Vehicle will surge only when the cruise control is on at any speed (worse going up hill) Once the cruise is disengaged the problem goes away instantly. Subaru has a software update for this problem but it has already been performed. There was a brake switch co...
2009 Subaru Legacy 2.5i Special Edition 2.5L Odo Radio Clock VIN: 4S3BL61649
This car will at times have the Odo,Radio display and the Clock flash from bright to dim with the head lites on. The rest of the illumanation lite will stay at the dimmed condition (not flashing). I have a Snap on scanner and there is not an option to communic...
2006 Suzuki XL-7 Premium 2.7L No Start VIN: JS3TY92V36
Ok guys I no I've messed up somewhere hopefully someone can help me out this suzuki came in with missfire found out it had a burnt valve on num 3. So I pulled the head had the valves and the head redone installed new timing chain now the thing won't start it s...
2003 Volkswagen Beetle GL 2.0L MIL Lamp on VIN: 3VWBK21C33
Hello VW Techs This car came in with code PO 456, we did the fuel leak detection pump test with the VAG COM and it show that it had a small leak in the fuel evap system, we perform the test on the fuel detection pump and found a leak in fuel leak detection pum... Trouble codes: P00, 456 (Small leak detected in fuel evap system)
2006 Volkswagen Beetle 2.5 2.5L compressor VIN: 3VWPW31C56
not cooling checked all power and grounds/ everythings seems to be fine just no power to the compressor. was told this car has no a/c clutch relay and that the a/c clutch was controled by the fan module. cant find no wiring diagram for this car. thanks for any...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Acura TL 3.2L No Start VIN: 19UUA5642X
car is fixed. the problem was the AUXILARY COOLING FAN. After doing all the work to it, i was sitting in the car and realized that the a/c wasnt working as good as it was previously. (it was previously blowing very cold. i had it on to stimulate more heat to g...
2004 Audi Allroad Quattro 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WA1YL64BX4
Thank you all for the input. I received some very helpful information. I checked running compression and definitely found a problem with that cylinder, most likely some sort of valvetrain issue. Recommended mechanical work to customer. Unfortunately they need ... Trouble codes: P1130 (Bank 2 Mixture adaptation system too lean), P0300 (Random/Multiple Misfire), P0301 (Misfire Cyl 1), P0302 (Misfire Cyl 2), P1127 (Bank 1 Mixture adaptation system too rich).
1999 Chevrolet Silverado 2500 6.0L ABS Module VIN: 1GCGK29U1X
Thanks to all who replied to this message. After reviewing them I went back and instead of just tightening ground connections at the right rear of the engine, left lower frame rail and left lower side of the block. I cleaned the connections to their shinniest ...
1999 Chevrolet K1500 Suburban 5.7L p0154 VIN: 3GNFK16R7X
2003 Chevrolet Impala LS 3.8L Engine temp VIN: 2G1WH55K63
Thank you all for your help! After scoping the temp sensor last night and watching climb and stay steady. I believe this car has a instrument cluster problem, or a communnication issue with the pcm. The customer has decline going further knowing the car is...
2003 Chevrolet Silverado 2500 HD 6.6L Cooling Systems VIN: 1GCHK29103
thanks to all. yes water pump weep hole it is,, location through me off have a great day
2004 Chrysler Sebring 2.7L Cuts out, Stall VIN: 1C3EL46R44
Thanks to all who responed,the problem we found was that when the engine got warm the map sensor had an internal problem that would cause the car to stall. We installed a new map sensor and problem was corrected...Note this is a good example of when not to use... Trouble codes: P0513, P0129.
2006 Chrysler 300 C 5.7L Stall VIN: 2C3KA63H26
No fix so far-I think the pcm (#2) is bad. I contacted the local dealer to see if they would program the PCM for me if I got another one since I am having to have my Scan Tool sales guy come by to do it, at $100.00 bucks a pop, and the service manager ran the ...
1998 Dodge Durango 5.2L No Start VIN: 1B4HS28Y7W
After rechecking the bus line I found no shorts in the bus. I got another PCM and plugged it in and got my 5V ref back and odometer stopped flashing and vehicle started. thanks for all the replys
2000 Dodge Durango 4.7L Excessive Emissions, Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1B4HS28N2Y
The owner decided he did not want to put any more money into the vehicle, and sent it off to the salvage yard, so I can't report a fix... I will in the future check for leaking power steering pressure switches,and hopefully prevent this from happening again. ...
2004 Dodge Ram 1500 ST 5.7L Misfire VIN: 1D7HU18D54
Upon scaning the vehicle when it came back the 3rd time, there was the code PO300 again. This time I kept the vehicle for a week. after disconnecting the battery overnight and resetting all OBD data, the vehicle has been running fine since. I called the custom... Trouble codes: P0300.
2008 Dodge Grand Caravan SE 3.3L MIL Lamp on VIN: 2D8HN44H88
This van finally flagged a crank sensor code to go with the closed loop code. The crank signal scoped good, but we tried a sensor anyway. Both codes returned. We will pull the trans to inspect the flexplate next week. I will post a reply at that time. Trouble codes: P1128.
1995 Ford Windstar GL 3.8L Poor Idle Quality, Surge VIN: 2FMDA514XS
I timied the cam sensor using a scope that made some improvement but I found what looked like cat hair on MAF cleaned MAF and this made all idle problems go away. Thanks for all your help this was a mess from the get go with all the atempts to fix by customer ...
2003 Ford F-350 Super Duty XLT 6.0L cluster VIN: 1FTWW33P53
We installed a new PCM and cluster came to life drove good ran good but flashed PCM to ensure proper programming. All is good, customer has run truck over a week w/NO issues. NO GEM module on this truck. Hybrid cluster acts as the Gem module. Chked all B+ ...
1996 Honda Odyssey EX 2.2L Compressor VIN: JHMRA1875T
Thanks for all the replies. Turned out to be a defective factory thermostat. Wanted to be sure replacement one wasn't going to stop working also before we close the request. Its been 2 weeks and A/C works like it should. Thanks iTAN, what a great tool you have...
1998 Honda Civic DX 1.6L Hesitation
thaks for all the help. but the customer never came back. if he does i will update. thanks
2001 Honda Accord EX 3.0L blower resistor VIN: 1HGCG16561
First thanks to all who replied. I received valuable info. I got a call from customer that he got the resistor replaced (used) again and he had blower working in all speeds, blower pushing constant 20 amps on high so ok spec wise, but compressor not working. I...
2000 Jaguar XKR 4.0L transmission VIN: SAJJA42B8Y
Okay this one is finally fixed. We had multiple problems, which always makes for fun. The internal transmission failure was the easy part. Replacing the transmission took care of that. We also had a problem with the transmission mode switch it caused a perform...
1998 Lincoln Town Car Cartier 4.6L No Start VIN: 1LNFM83W9W
Well after fully understanding the theft system on this car, and where the theft light was, I realized that we started testing at the wrong end of this problem. Thank each and every one of you for your precious time in responding to my delima. After reading th... Trouble codes: B1681 (PATS transceiver signal not received).
1997 Mercedes-Benz SL600 6.0L Convertable top VIN: WDBFA76F8V
Car is finally fixed. Had the codes cleared at an MBZ shop. They flashed the Sunroof module and all works perfect. Thanks to all that replied.
2009 Mercury Sable Premier 3.5L Suspension Noise Sounds Like a worn Sway Bar Link VIN: 1MEHM42W69
OK so I posted this help request after having given the Gentlmen his car back after trying a new Drivers Side Front Sway Bar Link. Since then he has informed me he is having health problems & the car is gonna have to wait until he feels better so I'm gonna rev...
2000 Nissan Sentra SE 2.0L Poor Idle Quality, MIL Lamp on VIN: 3N1BB51A1Y
several guys had this one pegged. Another case of being bitten by junk parts. Replaced my A1 reman air flow meter with Worldpac OE nissan. DRAMATIC improvements in alpha, especially after clearing adaptives and relearning. One of the problems I have is MAF... Trouble codes: P0171 (lean bank 1).
2007 Nissan Quest SL 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5N1BV28U87
Electrical Connectors for coils #1 & #3 were cross switched due to fact that i took shortcut and lifted intake maniford vs doing it properly by removing wipers, wiper motors and cowl to properly remove intake manifold completely out of the way . There is no sh... Trouble codes: P0300.
2003 Pontiac Bonneville SE 3.8L oil pressure guage VIN: 1G2HX54K33
Back in the shop and finally got a toolbox to work out of. I'll address the faulty oil pressure reading first. Slight seepage from the OPS when I unplugged connector. No visible harness damage. Leaking OPS = replacement in my book so in went a new sender. Prob...
2004 Pontiac Grand Prix GTP 3.8L 1st gear VIN: 2G2WR52434
Thanks to all who responded. Justin from Michigan, thanks for the detailed response. I verified that, like everyone suggested, we are dealing with a internal transmission failure. Now, for those who have not had to deal with these cars, let me share some of th...
2001 Saab 9-3 SE 2.0L torque converter VIN: YS3DF78K61
The saab is fixed, Jerrod [...] from transpro called it,the torque converter was trying to engage do to valve body or internal torque converter problem. Replaced trans w/converter and all is well. Thanks to all.
2005 Scion xB 1.5L compressor VIN: JTLKT32495
We tried to get an explanation on how this compressor works, from Motor All Data. All Data sent a request to Toyota Scion. We never heard back from Motor All Data. We are not going to buy the Scion AC compressor tool for this job alone. We can guess how this ...
2003 Subaru Outback L.L. Bean 3.0L Unknown VIN: 4S3BH80673
I just want to say thanks to all of you guy's for all the help. The most common fix was the inner CV joints. But I am sorry to say each one of the front axles were replace by a different tech in my shop, unfortunately the one on the right side was 180 deg out ...
1994 Toyota Camry LE 2.2L Speedometer VIN: 4T1SK12E1R
Thanks to all the replies. Everyone suggested making sure the vss was operating properly. Tested the vss and wire integrety to speedometer,and pcm. All was ok. Gear on on the vss was fine and not messed up at all but verified vss worked by turning vss and obse...
2003 Toyota Camry SE 2.4L a/c VIN: 4T1BE32KX3
To all that have taken the time to send a reply,James, Daogang, Demetrio, Rich, Thomas, all of you, I thank you. The problem was in fact the Clutch Relay. I actually did test the original, but must have done that wrong. My customer was very pleased because she...
2004 Volkswagen Golf GTI VR6 2.8L 3rd gear noise VIN: 9BWDH61J44
We ended up rebuilding the transmission. Could not do it in the car.Had to remove trans as there are bolts that come thru from the inside of the bell housing. Tough to get the right bearings. Thanks for the replies.
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