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Prev Professional Automotive Repair Technical Discussions for April 27, 2012
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1992 Acura NSX 3.0L ABS Unit VIN: JH4NA1151N
Has any out there have a suggestion on how to bleed out the ABS Hydraulic unit without the ALB tester or the Mastertech adapter? I found a TSB that has you manually turning the pump motor on by jumping the first two pins of the ABS relay and I am just wonderin...
1999 BMW 528i 2.8L control head VIN: WBADM5337X
The atc won't operate properly at times, the temp won't change on either side, the air control won't work, the blower speed will never lower only go up, every once in a while the auto fuction will work, but then it quits working, scanned computer had code 40 f...
2006 BMW 330i 3.0L cam shaft VIN: WBAVB33516
This is really strange, I'll try to be brief. My regular customer was in Los Angeles on freeway when coolant temp went to red, turned out to be water pump failed. She called me on phone and I advised her to get car towed to nearest dealer. She did that and the...
1998 Buick Park Avenue 3.8L Message Center VIN: 1G4CW52K8W
thanks to all in advance, in Jan we installed new oil pan and oil level sensor. The oil pan was badly dented in. Now the customer states that when they start the car.The message center will display low oil level.In testing it does do this when car has sat for...
2002 Cadillac Eldorado ESC 4.6L power seats VIN: 1G6EL12Y22
pulled moule out checked for broken solder joints, checked fuses , swtches, relays, all of a sudden seats will work then stop working
2007 Cadillac Escalade ESV 6.2L Ride Control VIN: 1GYFK66867
Hi, no codes were set for the ride control. The problem is when a trailer is hooked up this truck doesn't lift or look level but without a trailer the truck seems fine. The rear shocks were replaced and no air leaks. The pump does come on when needed and event...
2006 Chevrolet Silverado 3500 LS 6.0L No Start VIN: 1GBJK34U56
Truck will intermittently start for 1 second than stall however I do not think it is a fuel delivery problem because fuel pump is running has good pressure also we are getting good spark. When this happens there are no P codes but truck will set some BCM codes... Trouble codes: B2948 (Security System Sensor Power Circuit High), B2958 (Security System Sensor Data Circuit High), B2961 (Key in Ignition Circuit)
2003 Chrysler Town & Country (Van) Limited 3.8L No Start VIN: 2C8GT64L03
Greetings All! Have this one in from another shop YAY! Vehicle towed in no start no injector pulse and no spark. Previous shop installed valve cover gaskets, when job was complete the vehicle started for a couple seconds and shut off. They checked for fuel pre...
2004 Chrysler PT Cruiser GT 2.4L Groaning VIN: 3C8FY78G74
I hate these cars Errr. Anyway I need help. Driving on smooth road any speed have this interminent load groaning vibration just hum through the car. If I go like 40-50mph down the highway i can get it to do it every time. Just driving along and this load hum, ...
2007 Dodge Ram 2500 Truck ST 5.9L accumulator desicant VIN: 3D7KR28C37
I know what is wrong, I'm trying to understand why it happened (accumulator failure).. Open a/c compressor clutch coil..recover, open system, flush..replace compressor w/new oem, liquid line and accumulator also installed (line/accum..had to use quality after...
1999 Ford F-150 XL 4.2L No Start VIN: 2FTZX1729X
HELP Ford guys. Towed in no start. No spark or injector pulse. Sometimes THEFT light flashes while cranking but am under impression PATS will only kill injectors so thinking that's not causing no start. Check vref at DPFE,TP, MAF all OK. Check PIP on crank rea... Trouble codes: B1450 (Wiper delay switch failure)
2000 Ford F-550 Super Duty XL 7.3L MIL Lamp on, No Communication VIN: 1FDAF57F8Y
Can't communicate with the PCM. Checked DLC, found bad connection at fuse not allowing B+ to get to pin 16. Repaired bad connection, still no communication. Tested ground and circuits between PCM and DLC, all test good. According to tests it has a faulty PCM. ...
2001 Ford Escape XLT 3.0L idle VIN: 1FMYU04151
Hi there. I have this escape that had code p0452 FTP low voltage. Customer complained of engine revving to 2500 rpms I found FTP normal but did find leaking pcv hose and pull iac valve and it was rough and did not have smooth movement. Car ran great afterwards...
2001 Ford F-250 Super Duty Lariat 7.3L No Start VIN: 1FTNX20F61
Thanks in advance to everyone! I am looking for a second opinion before I install a new IDM. the truck was towed in. the cd dirve on my computer quit so I have no Mitchell so I am not sure of diagnostic info.The truck has codes p1271 through p1278=high to low ... Trouble codes: P1271, P1272, P1273, P1274, P1293, P1294
2002 Ford Explorer Postal 4.0L rear differential VIN: 1FMZU62E42
Customer dropped off the differential at our shop. I drove the explorer before, and it had a rear axle whine noise which got louder with speed beyond 40mph. Previous experience said when there is rear axle noise, it is the pinion bearing. Previously, we have a...
2002 Ford Taurus LX 3.0L will not accelerate VIN: 1FAFP55U82
Hi guys Im reposting this car due to incorrect mileage I submitted and finding out your only allowed one update. As of right now the car is still in the shop showing the same symptoms. Symptoms are when pressing gas pedal or throttle the car will not accelerat...
2003 Ford Explorer XLT 4.0L 4x4 VIN: 1FMZU73K93
Hey Fellow Techs. This explorer Intermittenly will flash the 4x4 Light and set P1824 - 4x4 drive clutch relay failure. I have replaced the switch and the module. I also ran a ground wire from the transmission case to transfer case. 80% of the time time the 4WD...
2012 Ford Focus SEL 2.0L battery location? VIN: 1FAHP3M22C
im trying to find the battery on this ford focus sel, its not electric or hybrid. thnx for your help
2007 Honda Fit Sport 1.5L Fuel Injector VIN: JHMGD38677
when i connect all the signal wires coming from the pcm together and use my power probe to pulse a ground signal the engine will fire up and run for the time i pulse the signal.i 'm not sure what makes the pcm send the signal for injectors.thanks ingo
2009 Hummer H3 3.7L under body VIN: 5GTEN13E99
When warm under light load/acceleration at 2000 rpm there is a noise (sounds like a weedeater) from the passenger side underbody, noise goes away at approximately 2300 rpm. Noise can be produced in drive on acceleration and cruise or when sitting still with br...
2004 Hyundai Sonata 2.4L No Start VIN: KMHWF25S14
Car was towed in, no start. 3 weeks previously, had intermittent stalling, pulled crnk sensor code, replaced crnk sensor, timing belt & plugs. Ran fine. Towed back in 3 weeks later. No communication with scanner, checked all fuses, dATA LINK connector (ok), re...
1990 Jaguar XJS 5.3L Electronic VIN: SAJNW4849L
Hello fellow IATN members. I have here a 1990 Jaguar XJS, that has an A/C Air distribution problem. The A/C is NOT blowing air from the center vents, but is blowing from the defrost, and footwell vents. There is a vacuum hose that comes off the intake manifo...
1988 Jeep Wrangler 2.5L Slave Cyl VIN: 2VCHB81S0J
We have this jeep that came in with the clutch destroyed and missing and loose bellhousing bolts. We replaced clutch disc, pressure plate and slave cylinder. every thing worked great until approx 4000 miles and slave cylinder was leaking at the o-rings and ste...
2005 Jeep Liberty Sport 3.7L Misfire VIN: 1J4GL48K15
Hello, The jeep came in with a rocker on #6 cylinder off.Removed heads and sent to machine shop had both heads redone,we installed heads and customer drove for about 200 miles it came back With #2 cylinder missfires we swaped coils plugs and injectors and no ...
2005 Jeep Grand Cherokee Laredo 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GS48K55
vehicle was overheated and came in with both head gaskets blown- water pump replaced before vehicle came to our shop. replaced both heads as assemblies, except for cam gears, which were reused on the new heads. After startup and warmup, engine began to idle po... Trouble codes: P0016 (Crank/camshaft timing misalignment)
2006 Land Rover LR3 SE 4.4L Air Suspension VIN: SALAD25496
Hello fellow members. I don't normally do Land Rover work but when I do, I'm reminded why I don't. Friends car that bottoms out after it sits overnight (all corners). We first checked to see if it had any codes and there were none. Next we started spraying dow...
2003 Mazda MPV ES 3.0L Engine VIN: JM3LW28AX3
After changing chains guides and tensioners engine quited down but p0340 code came back replaced cam sensor for quick fix but code comes back. Other related symptoms are poor performance when code comes active engine idles fine and at low speed runs fine
2007 Mazda RX-8 1.3L Excessive Emissions, No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: JM1FE17337
We got this from another shop that was trying to change the plugs and found 1 stuck.It was towed to their shop for a no start and they told the customer that plugs would fix it. Well, got the plugs changed and the car will start at times and run great. No miss... Trouble codes: P0302 (Missfire Cyl 2), P2504 (Charge Voltage High), P0506 (Idle Air Control)
2008 Mazda 6 i 2.3L 2-3 shift VIN: 1YVHP80C08
Scratching my head on this one all seems ok till you drive slips into third and sets a p0733 then sets a p0672 shift sol 'c' stuck on
2000 Mercedes-Benz S430 4.3L a/c compressor
well thank u in advance for taking you time to look at this post. are alldata is on line and cant get info that i need and so manny differant alldata any way customer came in he said he was coming over the pass from taho and the car air ducts under car filled ...
2007 Mercedes-Benz GL450 4.6L Lack of power VIN: 4JGBF71E07
Thank you in advance for any suggestions or answers. This vehicle belongs to a very good customer of ours-here is the issue. It starts fine idles fine cruises fine. No codes stored and at first glance the data stream looks normal. Problem is it takes forever t...
2008 Mitsubishi Lancer Evolution GSR 2.0L Poor Idle Quality VIN: JA3AW86V98
This vehicle towed in, stolen recovery. We got everything back to stock. Problem is, I can't get to Idle smooth. If I disconnect turbo plumbing @ throttle body, it will idle fairly smooth and rev up. At same time , I see the MAF @ about 8-9 g/s. If I hook up ,...
1995 Nissan Quest GXE 3.0L Unknown VIN: 4N2DN11W65
1995 nissan quest blows warm air at front
2005 Nissan Maxima SL 3.5L 2-1 downshift VIN: 1N4BA41E55
hello, I have a 2005 nissan maxima with 5speed intermitently has a harsh up shift 1-2 and 3-4 and a harsh downshift to 1st when coming to a stop..fluid has been changed regularly..referred to tsb 11-035 and followed flow dtc..the flow chart...
2008 Pontiac G5 2.2L Surge, Stall, MIL Lamp on VIN: 1G2AL18F08
We can not control purge soleniod with the Scan tool. It 100% or 0%. it will pulse sometimes,Is this a programing issue? We need the purge soleniod to pulse. Trouble codes: P0171 (Lean Bank 1), P0496 (Purge Soleniod Hi Flow)
2003 Saab 9-3 SE 2.0L Trionic ECU VIN: YS3DF78K13
This car was towed to us from another shop. The engine cranks but will not fire up. When the engine is cranked, the fuel pump relay turns the pump on, so we have some kind of a crank sensor signal. The crank sensor looks OK on the scope. We have spark on coils...
1996 Volvo 850 GLT 2.4L Poor Idle Quality, Misfire VIN: YV1LS5542T
Hellow all volvo techs any help or insight would be appriciated. This volvo has got me at the end of my ideas I have replaced plugs wires cap rotor with oe parts tried diffrent maf crank sensor have checked compression and did injector balance test and still n... Trouble codes: P0300, P0301, P0302, P0303, P0304, P0305
1999 Volvo S70 2.4L No Start VIN: YV1LS55A7X
I have a 1999 Volvo S70 that was towed in for a no start problem. Put on a fuel pressure gauge and when I turn the key on it has fuel pressure and starts mometarilly and the fuel pressure goes to zero. Then no fuel pressure unless you wait with the key off for...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1993 Acura NSX 3.0L Emmisions VIN: JH4NA1156P
Sorry for the delay, thought this thing was coming back but it hasnt. We did all the egr checks and everything was ok. The customer wanted the car back so he got it and never came back.
2006 Acura MDX Touring 3.5L Horn, Cruise, radio buttons on steering wheel VIN: 2HNYD18806
Thanks everyone for all your help. It turned out to be a defective cable reel assembly (clock spring). We rechecked all grounds after replacing and everything was okay.
2001 Audi A6 Quattro 2.8L Timing belt VIN: WAUEH64B81
I'd like to thank Stanley and everyone else for the help. This job went pretty smooth. I would recommend using the tools.
2003 BMW 325i 2.5L Stall VIN: WBAET37493
Suspected elec throttle body but couldn't prove because it tested good and no codes.Had another 325i come in for intake gaskets so while its t/body was off I put it on my problem BMW an like magic it was fixed so we ordered a new one,still can't find anything ...
2006 Chevrolet Cobalt SS 2.4L No Start, MIL Lamp on VIN: 1G1AM15BX6
Well, you guys won't believe it. My mechanic installed the engine, so after diagnosing it, we found the problem on accident. He had plugged in the fuel injector plug into the throttle body. Unbelievable, that GM would have the same plugs, so close to each o... Trouble codes: P0107 (MAP or BARO Pressure Signal Low), P2119 (Throttle Closed Position Performance), P0335 (CKP Sensor A Circuit Problem), P0651 (5 VOLT Refrence 2 Circuit).
2004 Dodge Ram 1500 Truck ST 4.7L rocker arm VIN: 1D7HA18N14
replaced affected lash adjusters and rockers and perfromed intake system flush.
2007 Dodge Ram 1500 Truck TRX4 5.7L Misfire, MIL Lamp on VIN: 1D7HU18237
Thanks to all who took the time to reply and help us out. Customer came back and we performed a compression test, #6 125 psi and the rest are 200 psi. Along with most of you we figure a recessed valve or dropped valve seat, but we are not pulling the heads as ... Trouble codes: P1521 (Incorrect oil viscosity), P0306 (Cyl 6 misfire).
1997 Ford Taurus GL 3.0L converter, 2-3 shift VIN: 1FALP52U5V
Hello everyone, after reading everyone's replies, and ensuring that there were no DTC's present in the Transmission Code(s) history I proceeded to recommend for the customer to rebuild his/her transmission and/or replace with a used one (if they so prefer). C...
2001 Ford F-350 Super Duty Lariat 5.4L Drive-axles VIN: 1FTSX31L71
Sorry it took so long. It looks like the drive shaft is jumping. I think it's the transfer case. The customer is blaming us for an axle seal leak. (150,000 miles) It looks like we are not going to fix it. I just want him to go away. Thanks for all the help
2002 Ford Focus ZX5 2.0L Poor Idle Quality, MIL Lamp on VIN: 3FAFP37332
Hi, Thanks to those of you that replied. Most said that it must have a vacuum lea, but after several tests, I couldn't find one. When I replaced the fron O2 sensor I had readings on the scanner. I suspect that if I was to replace the rear one I would get re... Trouble codes: P0136 (H02S12 Fault), P1131 (H02S11 reads lean).
2005 Ford F-250 Super Duty Lariat 5.4L window VIN: 1FTSW20525
2008 Ford Taurus SEL 3.5L Odometer VIN: 1FAHP24WX8
Thanks to all who replied. The general consensus is that I should send the instrument cluster to an instrument cluster repair shop. The repair shop would be able to retrieve the mileage data in the process of repair.
2003 GMC Envoy SLT 4.2L air bag VIN: 1GKDT13S93
thanks for the replies. the help was good. but at this time customer took the car. D
1990 Honda Civic DX 1.5L Head Gasket VIN: 2HGED6348L
Hi Guys I think I will go with the guys that said slack it off and re-torque. I think I will agree with the statement "since it has not been run the gasket will be OK. Cold torque will not smash the gasket as much as once it heats up and expands. I will b...
1997 Honda Accord EX 2.2L lock-up control sol. valve ass. VIN: 1HGCD5657V
thanks for help. i replaced the pcm and hasn't had any more problems
2002 Jeep Grand Cherokee Limited 4.7L rear diff VIN: 1J4GW58N22
thank you for everyones reply!!! this one i will never forget. ok so here it is. the whining noise was the back lash on the rear diff. too much. the noise when turning was combination of the rear end and the t case. i put factory limited slip additive in the ...
1995 Nissan 240SX 2.4L No Start, Poor Idle Quality, Cuts out VIN: JN1AS44D2S
Thank you for all the replies. We started monitoring live data via Snap-on Scanner while making adjustments under the hood when we noticed, during the stalling symptom, the snap-on scanner would loose connection to computer data, consistently. Thus, we determi...
2001 Nissan Sentra GXE 1.8L MIL Lamp on VIN: 3N1CB51D01
2002 Nissan Altima S 2.5L Compressor controls VIN: 1N4AL11E82
Thanks for all your replies. I had already vacuumed out the system and refilled with the proper amount. I also tried a coule ounces more just to be sure and the pressures went up, but temps didn't go down. Most everyone said it was just low, but that couldn...
1966 Pontiac GTO 6.4L tach VIN: 242676P344
Thank you for your help but it looks like no info was ever published. This was a rare cluster. If I can find someplace to send the tach for repair they will give me details ( power and sig.) I can build a system from that.
1973 Porsche 914 2.0L Poor Idle Quality VIN: CANTF1NDV1
Yes I fixed this thing thanks for the help the biggest help was the abilty to download a 31 page book on the system and I was able to figure out the timing marks etc. its pretty good but I think it will need an engine soon . It sure is scary to lay on the trun...
2003 Toyota Camry SE 2.4L Engine VIN: JTDBE32K73
Thank you all. on this car we are performing a oil burn test over the last 3 weeks. This car is not using much oil but I do have one using a bunch. So this car we have a plane to have her come back once a month for us to add oil. The other the customer is deci...
2005 Toyota Prius 1.5L Master Warning VIN: JTDKB20U95
I waited for a little bit after the customer took the car to post a reply. The customer decided that he didnt want to wait for me to diagnose the problem with his car and took it to the dealer. I told him that was fine and I would like to know what they found ... Trouble codes: B1400 (Normal).
2004 Volkswagen Passat GLS 1.8L Stall VIN: WVWPD63B14
Don't have a great deal of experience on turbo VW driveability, but this surely taught me a great deal and thanks to all who offered advice. As several of you suggested, the air hose to turbo was defective; replaced and all is well.
2007 Volkswagen Jetta Wolfsburg Edition 2.5L compressor
Hi group thanks to everyone for your response and try to help me,,most of the replays was usefully,specially the one from Sanford,he states that VW measures regulator valve amps.from .3 amps @ 60 psi..but for now the customer dont want to spend more money in t...
1995 Volvo 960 2.9L Misfire VIN: YV1KS9615S
Thanks to all who replied. Justin hit the nail on the head. The power stage (ign amplifier) had dropped just one cyl. I had tried pretty much all the tests suggested by the other responses but with no promising results. I swapped the front power stage with...
1998 Volvo V70 X/C AWD 2.4L oil consumption VIN: YV1LZ5646W
Thanks for the replies, Many of them covered aspects we had checked or addressed. There was a couple of comments that were significant. Valve guides seepage or cracks and most likely one reply indicated Volvo lists different part number exhaust seals for th...
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