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Prev Professional Automotive Repair Technical Discussions for August 8, 2014
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2002 Audi A4 Quattro 3.0L Poor Idle Quality VIN: WAULT58E82
Hello Everyone. This car came in with a check engine light. All three cylinders in bank 1 are misfiring. We looked at group 15 on the VAS 5052a and saw all three cylinders miss firing in bank 1 at idle. We looked at group 16 and there are no missfires in bank ... Trouble codes: PP030, P0301 (miss fire cylinder 1), P0302 (miss fir Cylinder 2), P0303 (miss fir cylinder 3), 16805 (Bank 1 warm up cat), 18010 (power supply voltage)
2006 Audi A4 Quattro 3.2L 3-4 gear VIN: WAUDG74F96
While driving the vehicle during normal conditions, the vehicle starts to shift up 1st gear, 2nd gear 3rd gear, 4th gear then back down to 3rd gear. After the vehicle does that initially it will shift normally up and back down. It does it in either automatic s... Trouble codes: P0783, P0068, P307A
2008 Audi S5 4.2L Poor Idle Quality, Surge, Cuts out, Misfire, MIL Lamp on VIN: WAURV78T08
This audi came in for stalling and running rough. Found that in tank pump was being duty cycled at over 72% , replaced and brought it down to 59-60%. Same poor drivability stumbling snd rough idle. Found that fuel trims in datablock 107 are pinned at 25% both ... Trouble codes: P310B
2001 Buick Park Avenue 3.8L Key FOB INOP VIN: 1G4CW54K11
Hello TECHS, we have this Buick that we cannot get the key fobs to work. We got brand new ones from the dealer and tried programming them with Snap On Verus. One time you try to program them it will take it the door locks click signaling a success but you can ...
1996 Chevrolet K1500 Cheyenne 5.7L low pedal VIN: 2GCEK19R0T
got this truck in late today.the customer had lube shop install front pads.when done truck did not have any pedal.went to they started throwing parts at rotors,calibers.front hoses.master cylinder.bled 20 bucks worth of fluid and still no pedal...
2002 Chevrolet Express 2500 5.7L Fuel VIN: 1GCGG25R92
I have a 2002 Chevrolet Express. It is not getting the fuel it needs to run. Will start and then immediately die. It will run if starting fluid is sprayed into it. Replaced fuel pump due to low psi levels but it still will not run. I performed a leak test and ...
2002 Chevrolet Express 2500 5.7L Fuel VIN: 1GCGG25R92
2002 Chevrolet Express 2500 with 5.7l engine. When trying to start I am getting a single pulse to the injectors then no pulse afterwards. Anyone know waht would cause it to only pulse once per key cylce? Thanks
2004 Chevrolet Venture LS 3.4L Compressor Clutch VIN: 1GNDU03E84
This vehicle was repaired by another shop for a different symptom than what I have. It has front air only. The a/c clutch will disengage will driving down the road intermittently. After approx 5-15 seconds it will turn on again. I have not seen it happen whil...
2005 Chevrolet Impala 3.4L slight clunk VIN: 2G1WF52E05
I am cheating by asking IATN before doing any real, actual diagnosis. Normally, I think that is a dumb idea, but considering the fact that every single Impala of this vintage that I have driven with any significant number of miles exhibits these symptoms, ther...
2006 Chevrolet Cobalt SS 2.4L Ignition VIN: 1G1AM18B56
Battling with this 2006 Cobalt SS. Customer came in a few months back with complaint of intermittent no-crank. After starting it numerous times, we did get the event to occur once. When the event occurred, there was no power at the purple starter trigger wire ...
2010 Chevrolet Traverse LT 3.6L Power Steering VIN: 1GNLRFED8A
I have replaced steering housing and flused system per dealer bulletin . The steering is better but sometimes only sometimes at idle hard to steer used gm dex6 fluid and pump seems to be pumping. Any suggestions
2003 Chrysler Town & Country EX 3.8L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 2C4GP74L73
starts up in the morning , after it warms up it shuts down, we replaced the computer with a new one from the dealer, & still dose the same thing, the engine will stay running if i keep on spraying carb cleaner through the throttle body, so i replace the fuel p...
1997 Dodge B1500 3.9L Poor Idle Quality, Stall VIN: 2B7HB11X1V
Customer just purchased vehicle, brought it in for a full inspection. Check engine light on, complaint is it stalled a few times, usually when coming to a stop. Second complaint is vehicle is sometimes hard to start randomly. Vehicle sometimes does not hold id... Trouble codes: P0351
2001 Dodge Ram 2500 5.9L low power VIN: 1B7KF23751
Truck showed up this week- been to another shop- lots of repair work- brakes etc. SES with a p0341 and no tach- have seen this before- maybe a bad cmp sensor or wiring- will scope it tomorrow. My question is this- truck will hardly do 55 mph. Runs smooth and N... Trouble codes: P0341
2007 Dodge Ram 3500 SLT 6.7L OD and 4c cvi's VIN: 3D7MX39AX7
truck came in with codes p0871, and p2704.tried new solenoid pack, speed sensors, line pressure sensor. the truck will drive for a week until the cvi's in o.d. and 4c drop to close to zero then it goes into failsafe. rebuilt trans and replaced valve body with ...
1988 Ford Ranger S 2.3L No Start VIN: 1FTCR10A9J
Looking for some help! This 88' Ford Ranger was towed into us with a broken timing belt. We changed it but have not been able to start it. The old timing belt was broken but did not look worn or aged. We seem to have good fuel pressure and spark and the timing...
1993 Ford Ranger STX 2.3L Poor Idle Quality VIN: 1FTCR10A0P
have this 1993 ford ranger 2.3.fuel pump continues to run after key is turned on for about 2 mins then will start.if turn key on and try to start will start but run real rought and stall out.check eng light will stay on but not store any codes.if you let it ru...
1994 Ford E-150 Econoline 4.9L engine VIN: 1FTEE14Y2R
Customer states the vehicle cut off while driving and would not restart. No spark and no injector pulse condition was verified. ICM tested good. PCM tested good. I replaced the hall effect sensor in the distributor because the PIP waveform was good but ranged...
1994 Ford Ranger STX 2.3L No Start VIN: 1FTCR10A1R
94 ranger 8 spark plug 4 cylinder engine. came in a no start hot only. let it run til warm, and when shut off it wont restart until it reaches WOT and no other way. you can go anywhere from idle on the tps to almost WOT and vehicle will not start, just cranks....
1998 Ford Expedition Eddie Bauer 5.4L turns over no start VIN: 1FMRU17L2W
customer went into a store and when he came out car would not start.theft light blinks fast for 60 seconds and then blinks slowly. there is power to the data link but there is no communication with the computer.have tried various resets that were found on iden...
2000 Ford Crown Victoria 4.6L Surge, Cuts out VIN: 2FAFP73W7Y
Vehicle activates speed limiter function at approx 45 mph, otherwise runs excellent. Speedo reads correctly. Recently replaced vehicle speed sensor (VSS). With scanner hook up, VSS disconnected I monitor PID's for vehicle speed and output shaft speed sensor (O... Trouble codes: P1270
2001 Ford Excursion XLT 6.8L Vehicle Speed Sensors VIN: 1FMNU40S31
vehicle came into the shop and kept stalling out after trying to drive it into the bay. I looked at the vehicle speed sensor on the computer and when I was in drive and my foot on the brake the vehicle was having erratic readings. when I tried to drive it the ...
2002 Ford Explorer XLT 4.6L temperature VIN: 1FMDU63W02
Cooling not where being normal on this. A/C compressor, accumulator, condenser, orifice tube and rear expansion valve has been replaced twice now. The screen to the rear unit has been replaced once. orifice tube 3 times. screen and orifice tubes are looking cl...
2005 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP53235
The vehicle is comanding 55 to 60 psi of Fuel Pressure at idle (normal should be between 28 to 35 psi) while the Long Term Fuel Trims are -25% on both banks (at idle and steady cruise). The Mass Air Flow Sensor, Oxygen Sensors and Temp Sensors have all been te... Trouble codes: P0174 (System Rich)
2005 Hyundai Santa Fe GLS 2.7L No Start VIN: KM8SC13D75
this car came in with my customer complaining that after he buys gas he has to wait 10 to 15 minutes before his car will start. I checked for codes & found none but he had just had the battery replaced before he brought it to me.With that said,any suggestions?...
2001 Jeep Grand Cherokee Laredo 4.7L insturment cluster VIN: 1J4GW48N11
This vehicle has a problem with intermittent no starts.. When you turn the ignition to on and the guages work it will start and run.. If you turn the ignition on and there is no guage reaction it will not start. The DRB 3 will not communicate with the ECU
2005 Jeep Wrangler SE 2.4L No Start VIN: 1J4FA29135
This Jeep came i as a no start, customer installed new battery, started 4 times and then a no start no crank. Performed diagnostic, codes p0499 and p0688. Perform circuit tests to find ecm not energizing asd relay or engaging starter relay in crank mode. NVLD ... Trouble codes: P0688, P0499
2012 Lincoln MKX 3.7L climate controled seat VIN: 2LMDJ8JKXC
Passager seat got wet dual climate controled seat module was replace along with seat harness , module was programmed with build as settings, i can make both seat motors run with the scanner but not with touch screen,I have no communications with heated steerin...
2003 Mercury Mountaineer 4.0L Noise VIN: 4M2ZU86KX3
This truck has a popping/cracking noise on hard turn to the right going forward then backward. But it will only do it one time you have to reverse direction then it will make the noise. We have been over this thing with a fine tooth comb and still can't seem t...
1998 Nissan Pathfinder XE 3.3L converter
vehicle came in with a bad tranny. we replaced the tranny with a used one with 110k. filled her up with fluid and theres a constant awful screeching/squealing loud sound coming from the bell housing area. pulled the tranny back off. input shaft looks good. pul...
2006 Nissan Maxima SL 3.5L o2 sensor VIN: 1N4BA41E86
now after you drive I am getting a p2a00 air fuel sensor range or performance code, rechecked converter It wasn't the same replaced it again it and still have the same problem any help would be greatly appreciated. looking at scan data bank one up and downstre...
2006 Nissan Murano SL 3.5L Blower VIN: JN8AZ08W86
Customer states that the blower will run at all times on high. When it does they get no heater controls or radio. When she hits a bump in the road it all goes back to normal, until it decides to act up again. Very intermittent and of course I could not duplica...
1993 Plymouth Grand Voyager SE 3.3L Poor Idle Quality, Hesitation, Stall, Screwy Shifting VIN: 1P4GH44R1P
Greetings Y'all. I've got a problem of battery voltage leaking into the TPS signal circuit. Constant voltage. Not KOEO. And its small. Will barely light my digital test light and nothing with the old school one. So, barely leaking over. Now before I dig into t... Trouble codes: 24 (TPS Voltage High)
1998 Pontiac Firebird 3.8L Hesitation, Stall VIN: 2G2FS22KXW
car has been treated very roughly, father says it has been in the bud numerous time , and has even had air time on more than 1 occasion. car came in no idle, smelled very rich, no codes, checked fuel pressure 55# then immediately drop to 0#. we cleaned the sys...
1996 Porsche 911 Targa 3.6L 5th gear VIN: WP0DA2996T
Hello Porsche techs. I have a well kept 993 that has a transmission problem. It is hard to engage 5th gear when driving. Never grinds or pops out of gear but requires high effort to shift in or out of 5th. All other gears are smooth and clutch feels good. I al...
1999 Porsche Boxster 2.5L Hesitation, MIL Lamp on, Slow to respond VIN: WP0CA2987X
I have a 99 boxter 2.5 auto. Im getting the following codes permanently stored in the ecu. By permanent I mean will return asap as soon as engine is turned on. p0341 cam sensor bank 1 short to b+ p1397 cam sensor bank 2 short to ground Both sensors are new i... Trouble codes: P0341, P1397
2006 Suzuki Forenza Premium 2.0L Cooling Systems VIN: KL5JD56Z76
Car towed in with broken t-belt guide bearing. All valves were bent so sent out to machine shop for rebuild. Receive cylinder head back from machine shop, install new gates t-belt kit. Torqued cylinder head 18ft lbs then 90 degrees 3 times. New head bolts. Car...
2000 Toyota Camry CE 2.2L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 4T1BG22K3Y
Hi ya'all - car came in on a hook would not start good - idle or move when you gave it gas - just bogs and dies out. The owners tuned it up ( I rechecked ) and checked compression 275 on all 4 ?? That seems high as crud ?? I put a fuel filter on it when I chec... Trouble codes: P0106
2005 Toyota Prius 1.5L engine VIN: JTDKB20UX5
Hi everyone. I find myself on here yet again. This job was originally brought to me as a reflash. No big deal..but when it showed up, the plot thickens. The customer apparently, from what Im to understand, REMOVED the hybrid drive completely to allow access fo...
2008 Toyota Camry SE 2.4L compressor VIN: 4T4BE46K18
After initial fix car came back after four months, the compressor failed internally and cracked the compressor housing. Replaced compressor, expansion valve, condenser, accumulator and flushed again. The system will cool, but the high side pressure is around 3...
2004 Volkswagen Touareg V8 4.2L Poor Idle Quality, Cuts out, Stall VIN: WVGCM77L94
Car came in from a car lot with notoriously troublesome vehicles. Complaint was car dying at irregular intervals, always restarted immediately. First testing found fuel pressure at around 10-20 psi, floundering idle quality, and engine died upon throttle appli...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Cadillac DeVille 4.6L battery VIN: 1G6KD54Y12
well, folks, i gotta close out this request. unfortunately i have no updates on the fix. customer got impatient and took the car someplace else. i asked her to come back and update me as to what the repair was. she's an 85 year old woman and her answer was...
2015 Cadillac Escalade 6.2L trailerbrake
Ordered factory harness. Installed aftermarket controller.
2000 Dodge Ram 2500 8.0L Surge VIN: 1B7KF23W6Y
thanks for the replies, we finally found the true specks for the fuel volume, dodge says 2.2 qts. in one minute, ours would only deo about 1 qt. new pump, runs great now. again thanks for all the help.
2008 Ford Escape Hybrid 2.3L rock hard pedal VIN: 1FMCU59H08
The Ford Escape Hybrid has gotta be one of the hardest cars for brake bleeding. Was finally able to bleed the brakes using CTA7015 pressure bleeder set to about 40PSI. Hardest part for me was keeping the cap on master cylinder from leaking while under pressu...
2011 Ford Escape Limited 3.0L MIL Lamp on VIN: 1FMCU0EG8B
i have waited for awhile to see if customer called with light back on. we had tested every thing once again and all had checked good. we looked at freeze frame and found that code was set going at highway speed, decided to try a purge valve, even though purge ... Trouble codes: P0455.
1998 Jeep Cherokee Classic 4.0L Misfire VIN: 1J4FJ68S8W
Good morning I am glad to report the customer finally returned and I was able to locate and repair a wire that had rubbed thru on the fuel rail at the left rear of the engine. Everybody is happy happy and thank you to all who had great ideas about where to ...
2007 Jeep Grand Cherokee Laredo 3.7L MIL Lamp on VIN: 1J8GR48K37
replaced pcm twice with reman. units. Replaced a third time with a new pcm and problem gone. Trouble codes: P0138, P0155.
2000 Lexus LX470 4.7L Interior VIN: JT6HT00W4Y
I removed the junction boxes from both kick panels (connectors)clean them as best possible and lubricate them with radio shack electrics cleaner with lubricant, reconnect the two plugs and that fixed the problem, Dan from Arizona suggested to check the junctio...
2004 Lincoln Navigator 5.4L MIL Lamp on VIN: 5LMFU28R34
Thanks to everyone that replied.In the end it was a leaky 4 wheel drive solenoid.Smoke testing didn't show it because of the one way check valves in the lines(there are at least three).I found the problem by teeing in a vacuum gauge and unplugging ports until ... Trouble codes: P0174 (Lean bank 2).
2001 Mazda 626 ES 2.0L Vehicle Shake VIN: 1YVGF22C31
After changing all the motor mounts we found that the new compressor that we installed was bad. also found the orifice tube was plugged up. car is running half way decent. it is a Mazda though...
1996 Porsche 911 Carrera 3.6L Poor Idle Quality VIN: WP0CA2997T
2005 Toyota Tundra SR5 4.7L 4-5 Lock Up VIN: 5TBDT44195
We are ordering a transmission for this truck.found overdrive clutch chattering causing problem.thanks for the help
1999 Volvo S80 T6 2.8L noise VIN: YV1TS90D4X
thanks to all the replies after waiting for delivery of a new lower engine mount the one to the right of the front of engine and installing, the noise is no longer there, thanks again
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