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Prev Professional Automotive Repair Technical Discussions for September 20, 2012
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1990 Acura Integra LS 1.8L Fuse #24 VIN: JH4DA9356L
Fuse 24 blows in 3-5 seconds after starting. Fuse powers main relay, pcm, cooling fan timer unit and alternator. Customer says she has replaced battery three times in last year. The car sits alot, and this is the first time I've seen this car. Could a bad dist...
2005 Acura MDX 3.5L 5th gear
I was looking for some input on this trans we installed a used case that was repaired now the noise is still there but not as noticable ive ordered new 4th and 5th gear or am i looking in the wrong area thinking of replacing with a used one but then i might ha...
1989 Audi 100 2.3L No Start, Stall VIN: WAUBB0442K
We got this vehicle in with a start stall condition. Vehicle will start up and immediately stall afterward, good spark, tested fuel pressure and found the pressure to almost max the gauge at 140 psi. Considering fuel pressure should be at around 90 psi operati...
2002 Audi A6 Quattro 3.0L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: WAULT64B12
resets p0341 an 346 almost immediately after start up, performed cps checks per code direction.verified voltage, ground,sensor signals at ecm with labscope,performed output test to cam adjuster solenoids with scanner while verifying audible clicking with labsc... Trouble codes: P0341, P0346
2002 BMW 540i 4.4L On-Board Monitor VIN: WBADN63422
Hello BMW folks, please can i ask for your attention for a minute? I'm working on a 2002 E39, and i think i have got closer to the fault, but i'd like to run it by you first... So, this car has an I-bus and i think the BMBT is causing the power drain. i have t...
2003 BMW 745i 4.4L Steering VIN: WBAGL63453
Hello BMW techs or all techs out there.I got 745I, customer brought in steering hard and havy to turn all time.I look at the pump is leaking and the sway bar leaking also but to test pressure pump require the tool i don't have it.I top up fluid to resorvoice b...
1992 Buick Century Special 3.3L engine VIN: 1G4AG54N5N
Hey guys, I have a low mileage 3.3 buick that dies after a couple miles and won't restart until it cools off. It is not overheating, and runs perfectly right up until it dies. It has good fuel pressure when it won't start, but no spark.I thought it was a speci...
2005 Buick LeSabre Limited 3.8L auto climate controls VIN: 1G4HR54K15
Car at times will blow warmer air from drivers vents. Tried moving temp and vent position no change. Sometimes can turn off unit then back on and it will be fine. sometimes must cycle key off and on to get normal results. Scanned for codes none did a relearn o...
1994 Chevrolet K2500 Suburban 6.5L Rear A/C VIN: 1GNGK26F6R
Customer brought suburban in for rear A/C not cooling. He had Compressor go out last year and had it replaced but rear unit didn't cool. We checked rear expansion valve and it was plugged. Replaced valve and flushed out evaporator core. Checked flow through bo...
1998 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19RXW
On arrival there was a cam/crank correlation code. The cam retard was reset to 0 degrees. The vehicle will shake under strong acceleration at higher speeds. Example, on the freeway at 55mph kick down to the next gear and accelerate, soon the MIL starts flashin... Trouble codes: P0300, P1345 (Crankshaft position / camshaft position correlation)
2005 Chevrolet Trailblazer LS 4.2L timing chain VIN: 1GNES16S55
Got another one iatn techs. this traiblazer makes a noise right under the top of the front timing belt sounds like the chain rubbin ont guide right on top at least thats what I suspected,I order another guide from the dealer.took the valve cover of fo...
2006 Chevrolet Silverado 1500 HD LT 6.0L No Start, Stall VIN: 1GCGC13U86
Vehicle was towed in, customer states it started to mis then died while driving. I found the Maf and Mis code, checked fuel pressure 55psi, spark is good, injectors have pulse. Fuel volume is good, filled a gallon jug halfway in just a few seconds. I got it to... Trouble codes: P0101, P0300, P1626 (Vehicle Theft Deterent passlock active)
2006 Chevrolet Express 3500 LT 6.0L Hesitation VIN: 1GCHG39U16
When van is hot misfire stumble once in a while plugs ok decarbonized system,anything common ...also did a crank relearn Trouble codes: P0102, P0300, P0175, P0172
2006 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AK15F46
This one is silly. I believe I covered all the bases here. I also replaced intake manifold gaskets/o-rings and filled intake with gas{out of the car of course ) no cracks or leaks found. Air inlet tube checks out good also.MAP/BARO pressure sensor seems to wor... Trouble codes: P0171
2008 Chevrolet Silverado 3500 HD WT 6.6L oil VIN: 1GCHK33608
Hello Duramax specialists. This truck has too much oil in the engine oil pan. I believe that fuel comes in somehow. It adds about 3 liters per 4000 KM. The engine runs perfect, no missfires or smoke. I Thought about too much fuel from one of the injectors. The...
2000 Chrysler Concorde LX 2.7L Hesitation, Cuts out, Misfire VIN: 2C3HD46R4Y
Trying to figure out which is defective by using versus scope is it flex plate shifted or cracked or is it timing chain stretched. PLEASE LOOK AT SCOPE PATTERNS IN WAVE FORMS UNDER PAUL [...]
2003 Chrysler 300M 3.5L sunroof VIN: 2C3AE66G23
when any button is pushed to activate sunroof,it has to be "pulsed"(push on and off constantly)to make it work to any position.the module has been replaced with used componets 3 different times.still has same results.
2002 Dodge Ram 2500 Truck 5.9L Injection pump VIN: 3B7KF23642
Vehicle came in fro long cranking time when cold. Condition worsened while at shop and now will not start at all. Once vehicle starts and runs once, it will work fine all day until it sits overnight, then it seems to need cranking excessively long. Plenty of...
2007 Dodge Ram 2500 Truck ST 6.7L MIL Lamp on VIN: 3D3KS28AX7
Hi, everyone. This Dodge will set code p2580. Sometimes immediately after clearing, sometimes it must be driven (hard acceleration). I ohm tested the turbo speed sensor wires at the ECM and it showed open circuit. I disconnected the speed sensor and ohm tested... Trouble codes: P2580 (Turbo speed sensor circuit)
2010 Dodge Charger R/T 5.7L suspension VIN: 2B3CA4CT6A
The vehicle makes noise when going over bumps, sounds like strut mount noise
1968 Ford Thunderbird 7.0L Surge
This car starts, idles and accelerates perfectly. Under cruise it starts to surge, put it under a little load and it runs properly. around town or during accel you would never know anything was wrong. Only when you hit speed and start to back off on the throt...
1998 Ford Escort SE 2.0L Hesitation VIN: 1FAFP13P5W
Car in question has low power(sag) during the first minute or so of running. Whether cold or sitting for a half hour or so. You try to accel and there is a holding back and then suddenly it takes off and is okay the rest of the drive. Sometimes you can just st... Trouble codes: P0455 (gross evap leak -which was traced to fuel cap)
2002 Ford Ranger Edge 3.0L Will Not Work VIN: 1FTYR14U72
The cruise will not work at all we replaced tye switches on the steering wheel as they were broken off and we have changed the pressure switch on the master cylinder also and still nothing...thanks to all in advance
2003 Ford Explorer Eddie Bauer 4.0L No Start, Cuts out, Stall VIN: 1FMZU64K53
Ok so we did a PDI on this Explorer, It ran fine, no problems at all. Car was driven for well over 30 miles. Car was sent to Detail and came back not running. So we checked everything we could. FP was in spec. Getting Spark and injector pulse. Checked data and...
2006 Ford Freestar SEL 4.2L brakes VIN: 2FMZA52216
This van came in with a soft pedal and i found rear brakes very low and rotors rusted/pitted. found rr caliper piston seized(and yes i turned it counterclockwise) replaced pads rotors and caliper, bled the caliper. took apart front brakes and pistons slides et...
2008 Ford E-150 4.6L Calipers VIN: 1FTNE14W98
Greetings Techs. Thanks in advance for any help provided. This place is a godsend. Here is the situation. I replaced the upper and lower ball joints on this vehicle for state inspection purposes. Everything went fine. I drove the van about 3 miles away to the ...
2005 GMC Savana 3500 SLE 4.8L brake system VIN: 1GDGG31VX5
Hi fellow Techs. i have an '05 Savanna with a perennially low brake pedal. the condition is generating complaints. the hydroboost and master cylinder were replaced with salvage components and then with O.E.M components more recently. there dosn't seem to be a ...
1996 Honda Civic EX 1.6L No MIL function VIN: 2HGEJ8648T
Hello and thanks in advance. Hope the Honda guys out there can advise me. Got this (salvage titled) Civic which runs its MIL OK for bulb-check, but will not turn the MIL on if a component fails. My MODIS indicates that the MIL is on (both on arrival and if I i...
1996 Honda Civic LX 1.6L compressor VIN: 1HGEJ6500T
This is unbelievable. Car came in with A/C inopp complaint. Checked pressures - all of the R134A leaked out. Pressure tested system - no large leaks found. Evacuated and recharged system, but compressor won't engage and condenser fan doesn't come on. When push...
1998 Honda Accord LX 2.3L Injectors VIN: 1HGCG564XW
Car came in as a no start. It has spark, good fuel pressure and compression. It has no injector pulse. The injectors have power. It will stumble when hit with carb cleaner. It had 3 codes P0300, p0301 & p0303
1996 Hyundai Sonata GLS 3.0L MIL Lamp on VIN: KMHCF34T7T
vehicle came in with code p0400 egr system malfunction. found someone had blocked vacuum line that supplies manifold vacuum to egr solenoid, repaired restriction and now it had vacuum supplied to egr thru the solenoid at all times, needless to say, ran terribl... Trouble codes: P0400 (egr system malfunction)
2007 Hyundai Santa Fe GLS 2.7L headgaskets VIN: 5NMSG13D97
Good morning Automotive Warriors,I have a 2007 Hyundai santa fe 2.7 towed in for a engine stopped running no crank or labored crank.Looks like the headgaskets let go,my question is at 42,000 miles what would have caused this problem.Customer has kept up with b...
2009 Hyundai Sonata GLS 3.3L Radio VIN: 5NPET46F99
Hello Hyundai techs, Car was brought to us by a reputable body shop after complete body repair to right quarter. The radio reception is good until the rear defrost is activated. We changed the amplifier on the right C pillar with no change in operation. Defros...
2001 Jeep Cherokee Classic 4.0L MIL Lamp on VIN: 1J4FT58S01
I am working on this jeep and I am having issues pinpointing the issue. Had codes stored for #5 injector circuit and #5 misfire so I cleared the codes started it up and no misfires runs like a champ I go test drive it around the block with no issues at cruisin... Trouble codes: P0306, P0304
2008 Jeep Grand Cherokee SRT8 6.1L Differential VIN: 1J8HR78328
Vehicle was at dealer for noise between 30-40mph. Dealer diagnosed with faulty transfer case. Vehicle came to us. We installed new Transfer Case from Jeep. We also serviced both differentials with Mopar Synthetic fluid and the mopar additive. The original prob...
2009 Jeep Wrangler Unlimited X 3.8L SRS,lights, turn signals VIN: 1J4GA39169
Hey Jeep tech's, evenin. I have this one that sank to the bottom of the steering column in the local lake. I replaced the smoke fried TIPM, a TIPM connector and repaired a few ground wires to it. TIPM was NOT submerged. Replaced the SRS module,ignition sw, wip...
2004 Kia Rio 1.6L Poor Idle Quality, Hesitation, MIL Lamp on VIN: KNADC12504
I'm getting some weird readings on my Genisys on this vehicle. MAF is reading 138.9 g/s at 125v-131v, however testing the MAF with a multimeter it tested .5v at idle and around 4.4 at about 3500rpm. We also tested the TPS with a multimeter and read fine as wel... Trouble codes: P0030, P0101, P0172, P0102, P0121, P1121
2006 Lexus LS430 4.3L phone VIN: JTHBN36F56
Lexus / Toyota guys. I have a 2006 LS430 with nav and bluetooth phone intergartion. Question is when i make or recieve a call the caller can barely hear me and i sound all muffeled. Also if i use the voice command nav it never understands what i'm saying, its ...
1996 Lincoln Mark VIII Anniversary 4.6L Drivelne VIN: 1LNLM91V2T
Hello to all. We have this 1996 Mark VII with a serious driveline vibration, Starts in around 45mph and gets worse the faster you go, Have had on rack with tires off and still have vibration, have had driveshaft redone at specialty shop, replaced mounts and re...
2008 Lincoln Navigator 5.4L Ignition power VIN: 5LMFU28548
My personal vehicle, with no previous problems. Got in this evening and turned key to start and nothing happened. Radio, climate control, wipers, power running boards, power windows, etc all work fine. Gauge cluster is dead other than security light flashing s...
2002 Mercedes-Benz E320 3.2L turbo VIN: WDB9046122
this is a mercedes benz sprinter 413cdi,i have turbo problem,low charge pressure fault code p1470-016,have replaced,transducer vacuum valve,charge pressure sensor,have no leaks in charge air system,have vacuum to valves,charge air control on turbo working,with...
2005 Mercedes-Benz SLK350 3.5L Variable Top VIN: WDBWK56F85
Hey all, We have a 2005 Mercedes Benz SLK350 With variable Roof issues. The car was taken to Mercedes where the owner was told that they needed to investigate a wet rear carpet behind drivers seat/seat floor. The convertible Top (hardtop) does not function a...
2007 Mini Cooper S 1.6L MIL Lamp on VIN: WMWMF73557
Vehicle originally came in with a multitude of codes: 2d52(superknocking) 2dcb (fuel cutoff due to superknocking) 2fdc (interface ews dme) 2b64 (unmeterd air)2b51 (air mass signal) 2b5f (air mass sensor correction signal). Valve cover/pcv was updated to newer ... Trouble codes: P1497
2003 Mitsubishi Eclipse Spyder GT 3.0L Surge VIN: 4A3AE55H33
Hello my name is Mark a check eng light comes on and list low voltage to all 4 heated oxg sensors clear code car runs fine within 10 miles light comes on codes found po 0135 and 0141 In my experience all 4 heated oxg sensors to fail at one time is unlikely Trouble codes: P0135, P0141
1987 Nissan Van XE 2.4L Cuts out VIN: JN8SC26S1H
the problem is wene driving the vehicle at highway speed eng. cuts out and chuggle . fills like some one turns off the keys for ten second and turn it back hapen only whene eng. at normal temp. Trouble codes: 43 (injector circuit)
2004 Nissan Titan XE 5.6L No Start VIN: 1N6AA07A14
i need nissan help on this one,titan came in from other shop that put a fuel pump in it.truck still would not start so here i am,i have no injector pulse,or ignition spark.i have checked the most common like swapping relays in ipdm,i even installed ipdm from a... Trouble codes: P1051, P0300
1998 Saturn SL2 1.9L vent tube VIN: 1G8ZK5278W
vehicle came in with a sloshing sound under dash with a/c on. put on lift and blew air into vent tube and a gallon of water came out. 2 weeks later same thing. very minor poke or blow of air and it leaks again. 3rd time it happened we pulled the heater core to...
2003 Subaru Baja 2.5L Trans VIN: 4S4BT61C63
This Baja has very worn bearings on the rear mainshaft and some broken gear teeth in the transfer case section. There was plenty of lubricant. My question is if anyone has seen this type of failure before. It isn't mentioned on Identifix at all. My customer wo...
2007 Toyota RAV4 2.4L Torque Converter VIN: JTMBD33V87
RAV4 has a shudder in the drive train only after initial gear shift at light acceleration. I removed the propeller shaft and the shudder was isolated in the front, feeling very much like a torque convertor vibration. I found a TSB that describe the exact condi...
2001 Volkswagen Jetta GLS 1.8L a/c and fans VIN: 3VWSD69M41
Group, Have a common problem but can't get it fixed!! The fuse box originally melted at the 150 amp fuse from the alternator. Fans and A/C were not working car was overheating. Replace fuse box and rewired a new wire to th e alternator with heavy wire and copp...
2007 Volkswagen Passat Value Edition 2.0L Misfire, MIL Lamp on VIN: WVWLK73C57
Car has returned with the same codes, P0264 / 000612 (#2 injector short to ground intermittent)P0300,302 and 303. Finally had it happen with the VDS on the car and saw both cylinders 2 and 3 miss-fire. However just puts out the code for the #2 injector. Any he...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Audi Allroad Quattro 2.7L cooling system VIN: WA1YD64B22
THIS AUDI IS FINALLY COOLING.Thanks to all who replied with their thoughtful and intelligent replies.IATN is a powerful tool.In my original post I said I checked for contamination, but I saw some and ignored it.A good two way flush and the system bled easier a...
1997 BMW Z3 Roadster 1.9L MIL Lamp on VIN: 4USCH7328V
Hi all Techs. Thank you all.I removed the top plenum as Scott and Nicolas said. Also They said to use OE part and while in there replace all the hoses as they get britlle,yeah I did managed to break the air pump tube in 3 pieces. Thanks Again Trouble codes: P0340.
1999 Chevrolet Silverado 1500 4.3L No Start, Stall VIN: 1GCEC14W8X
Inspecting the vehicle found that the pcm lookes very corroided. Took pcm out and found corroision in connector and going inside of pcm. Replaced pcm and vehicle ran better but still had some strange intermitant stalling issue. Found that there was a bad groun...
1996 Chrysler LHS 3.5L gauges VIN: 2C3HC56F8T
Group, Got it fixed thanks to you all!!! Was a bad solder point in the cluster. I removed the cluster per several replies and sure enough found about 5 points that were not connecting under my magnifing glass. They were at the points where the cluster connects...
2001 Chrysler Town & Country (Van) EX 3.8L ecm VIN: 2C8GP54L01
Well it seams I have to convert thuis thing back to egr. The wiring is there but the alt is mounted in a different postion which means extra brackets i need to find. Thanks for all of your help!
1995 Dodge FREIGHTLINER 5.9L Alt Gauge
found out the generator wasnt working, cust came in and asked for a new battery, we didnt know the charging system was at fault. especially after finding the 4 amp draw. sent the bus to a heavy duty repair shop. thanks Andy for your reply.
1996 Ford F-350 XL 7.3L Low Psi Oil VIN: 1FTJW35F5T
Patrick was right on it. There is a pipe plug that screws in the back of front cover. If it falls out the oil is pumped back in to the oil pan. It will not fall in to pan. The oil cooler can be removed and you can see the threaded hole, but not the plug. You m...
2001 Ford Mustang 3.8L Poor Idle Quality VIN: 1FAFP40441
2001 Ford Mustang GT Bullitt 4.6L Hesitation, Surge, Cuts out VIN: 1FAFP42X51
Finally fixed the problem with the Mustang. After checking all parameters on vehicle, I had taken the car back to the Tuner who programmed and Dyno'ed the vehicle. It turns out it was indeed running too lean on the cold start / run settings in the tune program...
2007 Ford Focus SES 2.0L communication VIN: 1FAFP34N67
Thankyou for all your help .I have heard enough ,not much what i have in my mind. Except John from Utah . Yes John [...] expect that. Just like alot of dealer reprogram computor...they want more before they get it right.Thank god i didnt pay off and just get more ...
1994 Honda Accord LX 2.2L MIL Lamp on, Intermittent buck 1 VIN: 1HGCD7138R
the final conclusion was bad vss sensor and distributor scoped distributor and could see hash in the cylinder position sensor and not in the tdc sensor or crank sensor customer to return for repair no money for repair at this time Trouble codes: 9 (Cylinder position sensor malfunction), 17 (Vehicle speed sensor malfunction).
2004 Honda Accord LX 2.4L emissions VIN: 1HGCM55384
My customer has decided that since his car just passed emissions and it is almost time for a new car not to pursue any more checking. We have checked the cap, it passed the gas cap test. We also took every evap line off and blew through them with no blockages....
2007 Honda Element EX 2.4L MIL Lamp on VIN: 5J6YH28717
We blew out those 2 large hoses on the vent valve again. Although neither hose seemed restricted at all, that fixed the car. Many thanks! Trouble codes: P2422 (Evap vent valve stuck closed).
1998 Lincoln Continental 4.6L Brake Pedal VIN: 1LNFM97V1W
Suggestions included making sure rear calipers were on correct side, inspecting the tone rings for cracks or damage, re-replacing the master cylinder, and replacing the HCU. Pedal problem is very intermittent but not accompanied by ABS activation. Customer h...
1999 Mercury Villager (Van) Estate 3.3L MIL Lamp on VIN: 4M2XV11T0X
thanks to Jarnal who gave me a better defination of code. He explaned that this was a ciccuit malfuction code. I believed this was lean condition code. he also spoke of broken wires near cross member. I did find broken wire at alternator bracket. Repaired wire... Trouble codes: P0130, P1148.
2002 Mercury Sable LS Premium 3.0L Stall VIN: 1MEHM55S22
Thanks for all the help guys. We were getting some weird reverse voltage from the pump making us believe that it was getting hot after being run for a while. Got the car to idle poorly and eventually die on us as the fuel pump would not turn on. This occured a... Trouble codes: P0191 (Fuel Rail Pressure Range/Performance).
2004 Mini Cooper S 1.6L coolant VIN: WMWRE33454
Hello iatn group members,this gremlin is finally fixed!!! We followed all the advises,checked harmonic balancer for slippeage,none.Removed supercharger again nothing wrong. Then bled system with airlift and bleeding procedure as one of you decribed still coola...
2007 Mini Cooper 1.6L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: WMWMF33567
Thanks to Eric! The coolant temp sensor was the problem. I checked the values with the Autologic after the vehicle was cold and before I started the engine. It was reading about 76 deg C. So I ordered a coolant temp sensor and before installing it I checked...
2002 Mitsubishi Galant ES 2.4L No Start VIN: 4A3AA46692
Thank you to all replies.Checked crank sensor with scope and no signal replaced and car starts and runs. Trouble codes: P1610.
2002 Nissan Frontier SC 3.3L rear wheel speed sensors VIN: 1N6MD26Y32
thanks to all who wrote in . i found we had a problem with one of the valves being stuck and after some investigating i found that the pickups run 3 differant types of sensors take note that if you order from a local after market parts get the dealer part # an...
2002 Nissan Altima SE 3.5L clutch VIN: 1N4BL11D52
thanks for all whom replyed i replace the clutch master cylinder and vech is now ok
2001 Oldsmobile Aurora 4.0L master cylider VIN: 1G3GS64C11
Sorry for my ignorance. Looked right past it. I think the k.i.s.s. method would apply here. Both front inner brake pads had the linings broke loose and shifted causing the caliper to push back. Thanks for every ones help. On a lighter note, my 11 son yr son wa...
2003 Volkswagen Jetta GLS 1.8L Headlights VIN: 3VWSE69M13
The prerdominant reply indicated that the sockets were known for failures such as this, where the plastic plug body is damaged by heat due to being the headlights being wired to stay on whenever the key is on. New plugs from the local Napa outlet on both sides...
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