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Prev Professional Automotive Repair Technical Discussions for April 2, 2014
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Help Request Answers
2005 Bentley Continental GT 6.0L Lumbar and massage VIN: SCBCR63W75
Driver seat control module was removed by another shop because a relay had burned and burned the circuit board. Customer didn't trust the shop and brought it to me. I checked the harness to see if any wires were run over by a seat track (no), then ordered and ...
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2000 Buick LeSabre Limited 3.8L Unknown VIN: 1G4HR54K0Y
This buick was brought in for a shake/shimmy when making a turn and getting on the accelerator during the turn. First thought was bad axle shafts, replaced them. The joints in the shafts were bad. Didnt take care of the problem. Thought maybe bad shafts from o...
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1997 Cadillac DeVille 4.6L Theft System VIN: 1G6KD52Y1V
Car drove in with message center saying theft deterrent problem may not start on next key cycle. Cannot communicate with any modules with scanner. Also on board diagnostics will also read no data for all modules. power and grounds at DLC are good . Cavity 2 re...
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1988 Chevrolet Camaro Iroc-Z 5.7L MIL Lamp on
Hello I have this car that is kicking my butt, Code 36 keeps coming back on after 1 cycle, I have replaced MAF sensor,Relay & connector, Burn off relay & connector,ECM, I don't know what to do please help everything is OEM NEW, everything seems to be testing O... Trouble codes: 36 (Maf burn off relay)
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2003 Chevrolet Tahoe LT 5.3L Heated seat, left VIN: 1GNEK13Z63
Customer complains that the LF seat heater will not stay off and gets very very hot. In my time checking this out I have found that the problem only occurs when the LF door latch is in the latched position even with the door open. The drivers side heated seat ...
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2003 Chevrolet Suburban 1500 LT 5.3L Pedal drops VIN: 1GNFK16Z23
Have a question. This Suburban has a brake pedal which is spongy and drops only when the engine is running. When engine is off, the pedal can be pumped up and holds great, but when running, the pedal drops to the floor. GM dealer told customer the master was b...
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2007 Chevrolet Avalanche LTZ 5.3L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 3GNFK12387
This truck came in with a dead #7 cylinder caused by a failed DOD lifter and a reduced power light coming on. The customer wanted the system eliminated and the engine resealed. We removed the engine and replaced all the lifters, cam, and all engine gaskets. Af... Trouble codes: P2135 (TP 1-2 Correlation), P2119 (Throttle closed performance), P2101 (TAC Motor circuit range/performance), P1516 (Electronic Throttle Mod VS Throttle position performance), P2176 (Minimum Throttle Position not learned)
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2009 Chevrolet Malibu LT 2.4L No Start, Cuts out VIN: 1G1ZH57B39
Died while driving. Started and stalled like VTD fuel cut. Instantly cuts, as opposed to fuel pump dies and engine sputters. Did this while watching VTD data (OK), then MAP, MAF, TAC, Fuel enable, all OK. After several tries without touching the gas pedal, I s... Trouble codes: P0106 (MAP sensor circuit)
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1999 Chrysler Sebring LXi 2.5L Excessive Emissions, Poor Idle Quality, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 4C3AU52N3X
Hey Fellow techs. Need some help. This 2.5L Mitusbishi motor is kicking my butt.Inherited it from another shop. Runs rough at idle and sets P0300. Will stall almost every time when coming to a stop. Extended crank during start up. Has pretty good power when dr... Trouble codes: P0300 (Random misfire)
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2000 Dodge Durango 4.7L Poor heat at idle. VIN: 1B4HS28N6Y
Poor heat at idle. If I have blower motor on low speed, it has warm or decent heat at idle. Hi blower speeds, vent temp drops at idle. Always good heat going down the road. About to replace heater core but not a 100% that its going to fix concern. Has anyone r...
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2005 Dodge Grand Caravan SE 3.3L all electrical VIN: 2D4GP24R85
Elderly owner purchased Van New from dealership. Complained to dealer while under warranty that battery would randomly go dead after van sat for a few days, Dealer could not find a problem but replaced the battery anyway. This problem persisted for years; some...
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2006 Dodge Charger SXT 3.5L MIL Lamp on VIN: 2B3KA43G76
Replaced dealer O/E rear 02 sensor, tested wire connector No 12 volt heater signal. Need Info for which connector block identify to test further. Brown /white wire for 12 volt from PCM? Trouble codes: P0138
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1997 Ford F-150 Lariat 4.6L Hvac VIN: 1FTDX18W3V
I'm officially stuck on this one. Truck loses heat to interior after traveling 10 minutes or so on highway. We replaced heater core and Air Blend Door (door was broke by actuator) We had been flushing heater core prior to this but customer wanted core replaced...
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1998 Ford F-150 Lariat 4.6L Will not set monitor VIN: 1FTZX1769W
Need help with Mode 6. But first a re-cap: Came in with CEL for P0171. Went to freeze frame and LTFT was29.3% but so was bank 2. Temp was 197 degrees. Vehicle speed 68 mph. smoked engine, no vacuum leaks found. On first test drive noticed Baro pid at 143 so I ... Trouble codes: P0171 (Fuel system too lean bank 1)
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2001 Ford Explorer XLT 4.0L vibration under acce VIN: 1FMZU73E81
it has a vibration ander acceleration only. can not find out what it is. I have it a rack with both drive shaft out of it and it still has the vibration. the vibration feels like a rotating vibration. its nothing like a miss fire at all.
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2002 Ford Taurus SE 3.0L No Start, Stall VIN: 1FAFP53U92
Came to us from another shop and they have replaced Fuel pump control module with a Dorman unit and the fuel pump has been replaced twice by them. We replaced EFI main relay and fuel pump relays due to overheating and would fail by tapping on them. Scan data... Trouble codes: P1233 (Fuel pump control module off line)
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2003 Ford F-150 King Ranch 5.4L Poor Idle Quality, MIL Lamp on VIN: 1FTRW08LX3
Hello to all. Here is what i got. Came in for engine light and runs rough. Confirmed that P0174 system lean bank 2 and p0316 missfire on start up. Fuel trims for bank 2 are 25-30% long term and bouncing from 1-5 short term. Trims on bank 1 are -10 long term an... Trouble codes: P0174, P0316
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2004 Ford Mustang 3.9L fuel pump VIN: 1FAFP40624
no start,shot with starting fluid it starts.RTeplaced fuel pump.no codes.pump is new and operating when hot wired
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2005 GMC Savana 2500 4.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTGG25V05
LTFT B1 and B2 in the 20's at idle, 1500 and 2500rpm LTFT will go down for a moment off idle. Fuel pressure is @ 62. fuel volunme is good. Smoke checked and carb spryed the intake gasket hot and cold. Adding propane thru the intake cleans up the fuel trims. mo... Trouble codes: P0300, P0171, P0174
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2006 GMC Sierra 1500 SLE 5.3L Hvac VIN: 2GTEK13Z86
2006 GMC Sierra with Dual Auto temp controls. Heater puts out full heat at any temp over 61 Degrees. If lowered below 61 goes full cold (as it should). Checked voltage to actuators and they are correct. Has anyone had a vehicle with this issue? I did look on s...
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1993 Honda Accord SE 2.2L speed sensor VIN: JHMCB7686P
Hello, Fellow technicians, I have this 93 Honda accord with the abs light on. When it is first started the abs light is out, it only comes on when the car gets up to about 25 mph (sounds like a sensor) pulled codes 4-1,2-3,7-8. when the abs light flashes the c...
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2003 Honda CR-V EX 2.4L Master cylinder VIN: SHSRD78883
Customer said the brakes have never been right on this vehicle since she bought it (even before we worked on it) Vehicle stops good, but while at a stop, the brake pedal will slowly sink down and will be on the floor after about 8 seconds of steady pressure. A...
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2004 Honda Civic LX 1.7L Unknown VIN: 2HGES16594
Japanese/ Honda experts needed!! Vehicle came in running very badly. Checked oil..smelled very burned. Checked coolant and saw smoke coming out of rad and low coolant. Did a block test and test showed exhaust in coolant. I did a head gasket/ kit and timing bel...
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2001 Hyundai Santa Fe GL 2.4L Surge VIN: KM8SB82B11
This Hyundai came in with check engine light p0303 had a misfire under slight load, and at times when idling on cylinder 3. I had found 1 plug wire arcing in spark plug well and 1 coil arcing to valve cover. Replaced plug wires and 1 coil. The misfire is no lo...
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2007 Hyundai Accent GS 1.6L MIL Lamp on VIN: KMHCM36C67
car sets p0012 after it gets hot,ovc solenoid and cvvt have both been replaced and ocv filter is clean. any ideas on where to go next? any help greatly appreciated. Trouble codes: P0012
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2000 Jaguar XJ8 4.0L Timing Chain. VIN: SAJDA14C4Y
I found this timing chain tensioner broken on the left bank. While installing the new chain I found that the primary tensioner is different. The oil passage on the new one doesn't line up with the block and will just shoot oil back into the oil pan. The origin...
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2003 Kia Sedona EX 3.5L Misfire VIN: KNDUP13103
Vechicle came in this morning with a misfire on cylinder 5. I have changed the coil spark plug and injector. Dealer has done a tune-up 20000 miles ago. Customer stated that it just started misfiring yesterday. Cylinders 1 3 and 5 tested at 180. Can not seem to...
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2005 Kia Optima LX 2.4L MIL Lamp on VIN: KNAGD12615
vehicle has repeated visits with code p0401 EGR insufficient flow detected - repeated all tests i could find and cannot get light to stay out longer than 2-3 days - help in solving mystery is appreciated and thank y'all in advance Trouble codes: P0401
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2003 Mazda Protege ES 2.0L fuel VIN: JM1BJ22593
this car cam in with a no start I have put a fuel pump on this car and and found out relay would only work wen I took it apart and pushed pins to geather but no car wont idle and has no fuel at key on engine off only has fuel on crank
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2004 Mercedes-Benz SLK320 3.2L Starting/Remote locks VIN: WDBKK65F94
Customer approached vehicle to unlock and drive. Alarm sounded and would not go off. Customer brought vehicle to my shop on a tow truck. Brought inside but couldn't get the alarm to go off. Disconnected battery and reconnect. Alarm is now off. Tried to resink ...
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2003 Nissan Altima 2.5L Cylinder Head Bolt VIN: 1N4AL11D33
I've been ordering cylinder head bolts for this engine without much luck, the original bolts have allen hex drive heads with washers, the ones I keep getting have external torx drive heads and no washers, they have flanged heads instead, I have not been able t...
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2004 Nissan Sentra 1.8L MIL Lamp on VIN: 3N1CB51D24
Hello everyone, I have come seeking wisdom. I have this little gem that is making me question my sanity. It came in with a code P1138. After checking everything according to Mitchell, checking wiring, voltages, no shorts to ground or power, no opens, we came u... Trouble codes: P1138 (Swirl Control Valve)
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2005 Nissan Altima SE-R 3.5L No Start VIN: 1N4BL11E45
Car came in as no start. Customer had a no crank issue and replaced the battery ground cable. Car now would crank but no start. After repairing assorted corroded wires, finding a shorted cam solenoid etc. I have a no start nats fault p1610. According to repair... Trouble codes: P1610 (Nats system lockout)
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1988 Pontiac Fiero Sport 2.8L Poor Fuel Economy
I told my friend about IATN and I told him I would post this for him, in the hope that someone else out there has run into a similar problem or can give us some fresh ideas to try. Thank you. Bob
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2006 Toyota 4Runner SR5 4.7L Driveline VIN: JTEBT14R86
Hard Drumming/Vibration Only on Acceleration that is most noticable above 50 mph and goes away when letting off of the gas. It feels like it is in the driveline, so we inspected the drive shafts, removed the one-piece rear shaft and replaced both u-loints. The...
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2007 Toyota Matrix XR 1.8L MIL Lamp on VIN: 2T1KR32E87
This is a very intermittent problem, will never do it for us, after all the tests and components replacements we've done, the customer went for her driveclean test and all monitors were reset, passed with flying colors, just came back with same code a month la... Trouble codes: P0171
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2005 Volkswagen Jetta GLS TDI 1.9L No Throttle Response VIN: 3VWSR69M95
This BEW engine has been a real pain. We did a head and cam originally because of flat cam, and ever since we got it back together it starts and idles good but has no throttle response when cold and gets slightly better when warm. NO THROTTLE at all when cold,...
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2000 Volvo V70 GLT SE 2.4L Voltage VIN: YV1LW56D8Y
The car came in with the complaint that the battery would not start the car after a 1 to 2 day dormant period. The owner stated that he had rplaced the battery and the problem persisted. With the negative cable disconnected from the battery, a test light coupl...
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2005 Volvo XC90 2.5T 2.5L Poor Idle Quality, Hesitation, Stall VIN: YV1CZ59225
Using Solus pro the MAF numbers go from 50 to 5 at any time, idle, cruise. The idle speed surges between 600 and 1500, sometime dies. Graphing the idle speed shows 2450 tops and 40 bottom with 750 average, the vehicle follows this pattern but at a much slower ... Trouble codes: 120D, 440B, 4400 (fuel tank system low)
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1992 Audi S4 2.2L Steering VIN: WAUHP54A0N
Thanks for the help guys- what we found is the pressure hose with the restrictor needs replacement but is obsolete. the customer has decided to live with the noise as it is very minimal. Thanks, Greg and crew
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2006 BMW 325i 3.0L alumn head bolt VIN: WBAVB13536
WELL, THE CONSENSUS WAS TO REPLACE THE 3 BOLTS UNDER THE VANOS, SINCE THIS CAR HAD SOME VANOS CODES THAT KEEP COMING BACK, I SUSPECT MAY HAVE SOMETHING TO DO WITH CAM BEARING WEAR. I DECIDED TO PASS ON THE JOB SINCE SHE ALREADY CRIED OVER THE PHONE BECAUSE SHE...
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2006 BMW 325i 3.0L Engine VIN: WBAVB13526
Hello everyone: Thanks for all the info, and i begin by apologising for the delay. I have not fixed this car. The customer is disputing the warranty with the dealer, looks like the mileage is fine but the years have expired. The issue is the timing. The bolt o...
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1984 Chevrolet Corvette 5.7L No Start VIN: 1G1AY0786E
The Coolant Temp. sensor was replaced with the intake but the IAT Sensor was not. Replaced the sensor, now it runs. Thanks for all the help. Trouble codes: N0NE.
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1994 Chevrolet S10 Blazer Tahoe 4.3L fuse VIN: 1GNDT13W5R
Thanks for all of the replies. I ended up finding that the driver side engine mount was broken. After replacing the mount and repairing the loom to the trans, o2 sensor and encoder motor, the short is gone.
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2006 Chevrolet Tahoe Z71 5.3L First,second, third, and drive. Reverse works VIN: 1GNEK13T16
Replaced the trans and problem is fix. Thanks everyone for the help
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2011 Chevrolet Express 3500 6.0L steering box? VIN: 1GB0G2BGXB
I have swapped wheels and tires with another vehicle and problem solved. The tires I had put on 9 months ago have 30k miles on them and appear in good shape. They were mastercrafts..Thanks Nate
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2004 Chrysler Sebring LX 2.4L Compression VIN: 1C3EL45X04
Ok guys...Most of you were right. This is an INTERFERENCE ENGINE and it is not an INTERFERENCE ENGINE, I guess we could say. While the pistons amlost can't touch the valves (never say never) the intake valves can touch the exhaust valves. I put the spark pl...
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2004 Chrysler Town & Country 3.3L Misfire, MIL Lamp on VIN: 1C4GP45RX4
Ok I really do appreciate all the feedback! Once I acquired a pressure transducer & ran running compression test on all cylinders I found #4 cylinder not the same! At this point I am certain there is an internal issue(valve, lifter etc problem)! I informed the... Trouble codes: P0304 (Cylinder 4 misfire detected).
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2005 Chrysler Town & Country 3.3L MIL Lamp on VIN: 1C4GP45R25
Ok . We will have to call this a diagnosis, customer wasted alot of my time . as I said this guy is a tinkerer . Orginal problem was a broken flywheel. Then the p0016 he claims wasnt there before . Michells Prodemand is our info system which has a tip that th... Trouble codes: P0016.
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2006 Dodge Sprinter 2500 2.7L Stall VIN: WD0PD64436
Well finally the sprinter is FIXED. Matthew got the A+ for today. I came in this morning and looked on what roles the MAF and O2 sensor play. The EGR uses the data from both to provide EGR functionality. So I removed the EGR and sure enough the shaft was brok...
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2006 Ford Focus ZX4 2.0L reverse VIN: 1FAHP34N06
Thanks for all the input and sugguestions. We disconnected the trans electrical connector and problem still persist. Replaced transmission with reman unit and problem solved.
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2010 Ford F-250 Super Duty Lariat 5.4L fuel pump VIN: 1FTSX2B56A
Thanks for those that helped, there were 2 tabs on the top of the pump module, initially they appeared to be part of the entire assembly, did not realize that the outer part of the assembly was part of the tank, not the module. Released them and all came apar...
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1999 Infiniti I30 3.0L Excessive Emissions VIN: JNKCA21AXX
WELL PULLED ALL THE SPARK PLUGS AND HAD SOMEONE CRANK IT OVER, FOUND #2 AND #4 FILLING UP WITH GAS AND SHOOTING OUT OF PLUG HOLE, REPLACED BOTH INJECTORS AND SPARK PLUGS AND WITH SOME GOOD DRIVING TO BURN ALL THE FUEL OUT OF THE EXHAUST IT RUNS GREAT NOW,HOPEF...
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2003 Jaguar X-Type 2.5L trunk actuator VIN: SAJEA51D33
Customer never returned car for repairs.There is no keyhole on an xtype to manually work the actuator.Many suggestions on the web is to break the left tailamp and access the safety that way. I liked Roberts idea of removing the license plate,then the upper ri...
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2008 Mazda CX-7 Touring 2.3L battery VIN: JM3ER29318
Sorry for the delay in closing this request.We are waiting for the customer to bring the vehicle back for further diagnosis, I did not think they would wait this long.When they bring it back and we get it figured out I will post the results,Thank You.
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1997 Mercedes-Benz E420 4.2L Windows, Locks VIN: WDBJF72F1V
Thank you to everyone who replied. Even things that were obvious or I had done already helped in some way. I was another victim of the broken connector on the CCM. I had that disconnected and reconnected a number of times and was sure I was doing it right of ...
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1999 Mercedes-Benz ML430 4.3L compressor VIN: 4JGAB72E1X
Thanks for all the responses, the fan running was the key, the pressure senor evidently was reading high even though I was t able to see sensor reading in AAM or PCM, but replaced &fans started operating normally & compressor engaged. Thanks again!!
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2001 Mercedes-Benz E320 3.2L MIL Lamp on, No accleration VIN: WDBJF65J91
Thanks for all the replies. I used the SDS and cleared ECU system and then relearn, took care of issue. Thanks again for all the replies. James Trouble codes: P0120 (Throttle actuator), C1041 (No communication to accleration sensor).
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2002 Mercedes-Benz CLK430 4.3L Starter lock out contact VIN: WDBLK70G82
Thanks for the reply! Replaced transmission conductor plate with built in starter lock out contact switch, vehicle is fixed and starts like normal.
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2003 Pontiac Grand Prix GT 3.8L MIL Lamp on VIN: 1G2WP52K23
thank you for all the help sorry took so long final findings after removing intake found tube for pcv was not properly installed re-installed and all is better appreciate all the help Trouble codes: P0171, P0174.
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2001 Saturn SL1 1.9L No Start VIN: 1G8ZH52861
Thanks for the help , I did the 3 times 10 minute key on with the proper wait in between and the vehicle started and has been ok since. This is the first time for me that only one ten minute key on didn't work for this problem. Lesson learned!! posts were as f... Trouble codes: B2960, B2958.
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2002 Subaru Legacy GT 2.5L Poor Idle Quality, Surge VIN: 4S3BH64542
This one is back on the road. I want to thank all of you who responded to my post. All of you had very helpful suggestions. I smoked tested the intake. No leaks were found. I was thinking maybe an internal leak like a few suggested, the pcv system checked ok. ...
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2005 Suzuki XL-7 EX 2.7L Timing VIN: JS3TX92V25
Sorry it took so long to close this post, I wanted to make sure this vehicle was fixed and no other problems occurred before I closed it. Thank you for the info I received, Guess it is a problem with these to shear off the pin on the cam. Just to clear it up, ...
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1996 Toyota Corolla 1.6L Hesitation, no power in gear VIN: 2T1BA01E2T
thanks for all the help this one had me stumped. I revisited the timming belt and found that the lower crank gear had a bad key way and lower gear.Installed a new key way and lower gear(sprocket) and a good used balancer,new timming belt.car now has all the po... Trouble codes: P0300.
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2000 Toyota Echo 1.5L Cooling Fan VIN: JTDBT1230Y
FIRST OFF LET ME THANK AL [...] OF YOU POINTING ME BACK TO THE BASICS. AFTER READING REPLIES AND GETTING MORE INFO FROM CUSTOMER. ANOTHER SHOP HAD ALREADY REPLACED T-STAT. CHECKED COOLA...
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2004 Volkswagen Touareg V8 4.2L MIL Lamp on VIN: WVGCM67L94
The fuel filter was major dirty, damaged fuel pumps. Went to go replace pumps and found metallic sparkles in the gas. Which I had to syphon gas out. Replaced pumps fixed. Trouble codes: 17536 (B1 mixture adaptation mult stystem too lean upper limmit exceed), 17538 (Bank 2 mixture adaption system too lean).
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2000 Volvo S80 2.9 2.9L No Start VIN: YV1TS94D0Y
So at this point I have to say it is fixed, mainly because the owner didn't want to fix it the right way. I made a video of the ECM going bad on the bench and sent the ECM with the video back to the ECM rebuilding. Fran, this is the same problem I had. They sw...
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