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Prev Professional Automotive Repair Technical Discussions for March 8, 2013
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Help Request Answers
2009 Audi A8 Quattro L 4.2L Control Module Resets VIN: WAUMV94E59
Hi, i have this audi 2009 a8l that customer states that the parking brake warning light comes on and the car will not move. So i was able to verify the problem, parking brake warning comes on and beeps, will not move when accelerating, will not shift out of pa...
2002 BMW X5 3.0i 3.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 5UXFA53552
This truck runs rough in drive no power , misfires , i checked coils, spark plugs, fuel pressure and it has 11 codes;p0300,p0305,p1344,p1342,p1349,p1347,p0171,p0174,p1083 ,p1085,p0141, im thing it might have a bad mass air flow sensor, thanks for the help Trouble codes: P0300 (Random misfire), P0305 (Cylinder 5 misfire), P1344 (Cylinder 2), 13442 (Cylinder 1 misfire), P1349 (Cylinder 4 misfire), P1347 (Cylinder 3 misfire)
1994 Chevrolet Astro 4.3L No Start VIN: 1GBEL19W6R
This 1994 astro is hard starting. It does not happen all of the time, but quite often. It doesn't seem to matter if engine is cold or hot. There is always good spark and 60psi fuel. I think it is something electrical because i do not have any scanner communica...
2003 Chevrolet Silverado 1500 5.3L No Start VIN: 1GCEK13T13
Truck came in with no reverse engagement in transmission, repaired transmission, attempted flash of VCM to update calibrations for fuel system and transmission control system. The rig I was using was a tried and true setup that I have used many times for GM ve... Trouble codes: U1000
2007 Chevrolet Suburban 1500 LTZ 5.3L Poor Idle Quality, High Idle VIN: 1GNFK16397
I'm stuck on this one. I replaced the Brake switch due to it showing Applied all the time. I also cleaned the Throttle body. After 2 or 3 starts I got a high Idle.2800rpm I tried to relearn the Idle with Snap-on Modis. It would be ok for 2 or 3 key cycles. I... Trouble codes: P0121 (Throttle switch ckt. performance), P0573 (Cruise brake switch a ckt high)
2009 Chevrolet Equinox LS 3.4L MIL Lamp on VIN: 2CNDL13F49
car has all the codes mentioned. plugs wires were changed. customer says then check engine light comes on, the traction control light also comes on and looses power. i am thinking bad throttle body. did the testing as per all data. just wanted to see what othe... Trouble codes: P0121, P0171, P0300, P2119, P2135
1998 Dodge Grand Caravan ES 3.0L gauges VIN: 2B4GP4431W
Thanks in adavance for your advice: Customer complaint is entire dash is inoperative. No power locks, no wipers, no headlights, no horn, scan tool won't communicate with the instrument cluster and BCM, but vehicle starts & drives. After sitting ahwile vehicle ...
2000 Ford Mustang 3.8L Excessive Emissions, No Start, Poor Fuel Economy VIN: 1FAFP4041Y
Why does it flood out plugs? All sensors look to be in specs. Long term fuel trim Is 17.7%on B1 and 20% on Bank 2. When I get it started and warmed up past 100 degres it runs and drive fine. Shut it off and now it wont restart flooed again...spark is good and ...
2002 Ford Explorer XLT 4.0L no nocommunication whit airbag,abs,&4x4module VIN: 1FMDU73E92
halo im here loking for some help.I have this ford exploter here and is kicking my ass; Have no commiunication whit the 4x4 module so i check all powers and grounds to the module everything looks god so we get new madule from ford, but i never check air bag co...
2003 Ford Taurus LX 3.0L Poor power VIN: 1FAFP552X3
Where does this vehicle get its baro reading? alldata gives nothing that i can find. Koeo baro is 18.85 approx. Koer during driving tests baro stays in a 18 to 22 regardless of throttle position. All readings are inches mercury. Engine is smooth but no power?
2005 Ford Freestar SE 3.9L Hesitation, Surge, Misfire VIN: 2FMZA51675
Hello fellow Techs, I have this wonderful Freestar that will, when driving, misfire ever so slightly while at crusing speed. I can, most of the time, get the vehicle to act up while driving over 50 mph, (I have felt it @ 30mph), but not every time. I have obs...
2006 Ford Escape XLT 3.0L Mechanical VIN: 1FMYU03156
Vehicle came in with severe clatter noise on top end. It will only run for about a minute or two, then the engine Will stall out. There is a P0340 DTC stored. It also sounds Like a popping noise in the intake. I'm just wondering if anyone has seen this problem...
2009 Ford E-350 Super Duty XL 5.4L MIL Lamp on VIN: 1FBNE31L59
Vehicle came in as a no start, & found to be flooded. Replaced plugs dried cylinders, changed oil. Found to be running +25 both banks @ idle. Replaced MAF sensor, fuel trims came down to +/-3 @ idle. Test drove to find it running extremely lean & knocking. F... Trouble codes: P0150 (Bank 2 Sensor 1 Circuit Fault), P2196 (O2 Excessive Rich Signal Bank 1 Sensor 1)
2002 GMC Envoy SLE 4.2L Excessive Emissions, MIL Lamp on VIN: 1GKDT13S22
Need some help on this job.has p0440-large leak evap.tested the vent solenoid and failed/cleared code and delivered to customer.returned a few days later with same code-p0440. Does not have service bay test for evap system in tech 2. Did have a purge and seal.... Trouble codes: P0440 (Evap failure-large leak)
1997 Honda Accord SE 2.2L radio VIN: 1HGCD5607V
looking for a code to operate radio after charging battery
2003 Hummer H2 6.0L steering VIN: 5GRGN23U73
Hello,have this 03 hummer H2 the with hydro boost steering system.when wheel is turned to eighter side,with just push of a finger will turn all the way by it self,need some guidance to what or how to ck or what are possible causes.thanks
1998 Infiniti I30 3.0L No Start VIN: JNKCA21A0W
cranks but don't start fuel ok,injector pulse ok, but spark at 2 coils #3 and #6
2003 Kia Sorento EX 3.5L battery drain VIN: KNDJD73393
This kia will drain the battery in 45 min if you leave the key in the ignition. With the key in the ignition the dash lights,marker lights and tail lights stay on. I'm not sure if this is how it works or not. I think that the ETACS (electronic time control sys...
1999 Mazda 626 ES 2.0L Transmission VIN: 1YVGF22C1X
This one starts back in August of last year. The customer came in with a slipping transmission. We recommended replacement of the transmission which the customer ok'd and paid for. She wanted us to use a used unit which we did. 3 weeks ago it comes back, trans...
1996 Mercedes-Benz C280 2.8L battery drain VIN: WDBHA28E7T
mercedes techs, please help! i've got a '96 c280. its in nice shape. customer complains about battery dying. has new battery in it. checked system for drain. was able to isolate drain to fuse 27 in underhood fuse block. remove fuse 27, drain goes away. install...
2004 Mitsubishi Endeavor XLS 3.8L timing
replaced timing belt, water pump and valve cover gaskets. first time i tried seeting up timing it was 180 started but ran like crap. took belt off, found tdc and set cams to timing marks. now vehicle wont start. i tried doing it again and again with no ...
2008 Nissan Rogue (Truck) SL 2.5L Hesitation VIN: JN8AS58V38
I have a customer that was in yesterday with an 08 rouge that had mil on. We diagnosed the os fault code but he has a warranty history at the dealer for a hessitation complaint he feels is trans related so he's off to the dealer to complain again. In speaking ... Trouble codes: P744, P0146 (B1s3 o2 sensor no activity)
2003 Pontiac Sunfire SE 2.2L Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: 1G2JB12F13
thanks for any help i may recieve.tuned up motor 2 weeks engine runs rough surges check engine light on code po300.i belive the light was on before customer requested tune up.installed double platinum autolites plugs.engine makes a sound hard to explai... Trouble codes: P0300
2006 Porsche Cayenne S 4.5L Coolant tubes VIN: WP1AB29P96
I am trying to estimate installing the updated coolant tubes. I can not find any solid repair times. The Porsche bulletin lists one hour to replace tubes, which sounds quick, but nothing for the complete job. Can anyone tell me what the going time is to update...
1985 Saab 900 Turbo 2.0L Noise VIN: YS3AT36L8F
Hello all you Saab gurus. Have an issue with this vehicle. Last November I removed the engine/transmission and then sent vehicle to have the body restored. I separated the engine and sent the transmission to a shop we usually deal with. When everything was put...
1992 Toyota 4Runner SR5 3.0L Poor Idle Quality, Hesitation, Cuts out VIN: JT3VN39W2N
Thanks in advance. This came in from another shop. It runs alittle rough at idle and when can get it to high rpms runs rough. It will not accelerate at all. From inspecting foung has fresh tune up, fuel filter, 02 sensor, injectors. Timing is good, tore down i...
1995 Toyota 4Runner SR5 3.0L Engine VIN: JT3VN29V4S
Checked for vac.leak none found idle starts off @ 1100 goes to 1400 1600 within 10 min. Stays untill restart
2000 Toyota 4Runner Limited 3.4L MIL Lamp on VIN: JT3GN87R2Y
Thanks ahead for any help with this one guys. Vehicle came in failing smog test p0420. I scanned and noted a/f sensor steady at 3.28v to 3.34v o2 sensor fluctuating between .2v and .8v . stft 0 ltft +6 replaced both converters aftermarket magnaflow. both exh... Trouble codes: P0420 (Catalyst System Efficiency Below Threshold Bank 1)
2000 Toyota Corolla VE 1.8L MIL Lamp on VIN: 2T1BR12E2Y
The car keeps coming back with p0171 code light goes on and off.looking for any help on this problem. Trouble codes: P0171
2002 Toyota Celica GT 1.8L MIL Lamp on VIN: JTDDR32T62
this car run great,except for the idler when cold its revs to 2000 rpm then after it warms up come down.but my problem its the ck engine light keeps coming on.i replaced both oxegen sensors to no avail.i still get the same code for lean and cat threshold not b... Trouble codes: P0171
1993 Volkswagen EuroVan MV 2.5L Excessive Emissions VIN: WV2MD0702P
Vehicle came in as a gross polluter from smog test. Co 6.26% Hc 103ppm @ 15 mph 5.21% 104ppm @ 25mph NOX 63 and 52 ppm. Scanned with Vag-Com and found no codes. Found a small vacuum leak @ hose to the ECU and F/P reg. Repaired and rechecked co 4.35 hc 89 @ 15 ...
1996 Volkswagen Jetta GLS 2.0L Poor Fuel Economy, MIL Lamp on VIN: 3VWSA81H0T
This vehicle came in with the check engine light on with a P0341. The customer requested a new timing belt and water pump. I made sure all 3 timing marks are right on. The car still sets P0341. I check terminals 1 and 3 at distributor and have battery voltage ... Trouble codes: P0341 (Cam signal implausible)
2008 Volkswagen Eos lux 2.0L Windshield Washer Pump VIN: WVWFA71FX8
HELP, I,M being beat up by a washer pump. who knew these some day would take two modules to control, I don't get it. I am using shop key wiring diagram {hopeful it is correct). I am using Vag-com for pc. Sorry but don't have all test info in front of me I can ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1996 Chevrolet Tahoe LS 5.7L lack of power VIN: 1GNEK13R0T
o/k here goes, still with fuel pressure gauge no problems found fuel pressure never dropped sensors readings still dont make sense, found bad wires on fuel pump corroded replaced pigtail.runs perfect,but fuel pressure is now 52 idle and 57 under load all senso...
1999 Chevrolet Tracker 1.6L Cuts out, Stall, Misfire VIN: 2CNBJ1865X
Well this morning it reared its ugly head and set a cam sensor P0340 code. So I will check the housing and replace the sensor and try again. Thanks to all who relied.
2001 Chevrolet Silverado 3500 LS 8.1L Hesitation VIN: 3GBKC34G41
Thanks Tray and Dwayne! After sleeping on it I jumped fuel pump balance relay and the transfer pump was bad and drawing too many amps. This was a C3500HD and apparently vin# doesn't pull it up that way Matthew. I apologize and thanks to all for the help. John ...
2005 Dodge Caravan SE 3.3L alternator VIN: 1D8GP25E65
This is more of a follow up on the vehicle. It is back in service with no customer complaints(no battery light or fault codes) . First thanks for the replies,I did check suggestions and did some more testing. I verified poor field control when lights are fluct...
2003 Ford Taurus SE 3.0L engine assy VIN: 1FAFP53U13
Thanks to all who replied, we have fixed this car with a new engine. We are still waiting to here back from dorman on this issue, i have a feeling its going to be a take a number get in line thing. I did check oil supply to the cam sync. it was good. The only ...
2007 Ford F-350 Super Duty XLT 6.0L No Start VIN: 1FTWX31P07
Thanks for all the help. I learned a lot on this one. I replaced the IPR and air tested again and no leaks. Put back together and it fired up. Seems to run good.
2001 Infiniti I30 3.0L idle/IAC
The PCM was bought brand new and it was the culprit. The IAC tested good the first time it was tested. The PCM would command the IAC closed but not open. Thank you to the members who have responded to the help request.
2000 Oldsmobile Bravada 4.3L no start no spark VIN: 1GHDT13W6Y
thanks to all who replied and especially to timothy [...] for making this easy to understand. had my brain fried on this one for a while but the fix ended up being an intermittant in the ignition module. new module,covered up w...
1996 Pontiac Bonneville SE 3.8L alternator VIN: 1G2HX52K9T
well sorry to say it but customer does not want to go any further on this vehicle it has been a headache, he is probaby trading it off.
2001 Saab 9-3 SE 2.0L Poor Idle Quality, Surge, Cuts out, Misfire VIN: YS3DF78K41
Many thanks to Justin, he was right on the money . Strange how the programming can affect the running in this case. Most all other vehicles this would not be a issue, but we are talking saab. Again many thanks Justin!!!
2005 Toyota Tundra SR5 4.7L MIL Lamp on VIN: 5TBDT44155
Thanks to those who replied. after checking and rechecking all hoses and electrical, problem is stiss occuring. we are going to send this one back to the dealer. May never know the cause of this problem. If customer informs me of repair. I will be sure to add ... Trouble codes: P2420 (evap emmisions pressure switch valve stuck off), 00441.
2010 Volkswagen Jetta TDI 2.0L engine VIN: 3VWRL7AJ4A
Hello everyone and thanks for all the great ideas. We looked into just about all of them. We replaced the thermostat with another one and it is now opening more consistently, but heat still lacks sometimes and it still runs hot when driving for extended time...
2011 Volkswagen Jetta TDI 2.0L MIL Lamp on VIN: 3VWLL7AJXB
Thanks guys for the responces. I informed the customer as to the information I recieved. To say the least he was disappointed with use because I could not give him a deffinate answer at this time as to what exact part was causing the code to appear. Based on w... Trouble codes: P0401.
2005 Volvo XC90 V8 4.4L Mechanical VIN: YV1CZ85225
I would like to everyone for there help. This vehicle is fixed. I was able to save the engine. I replace the balance shaft and balance shaft bearings. I was told you could perform this repair with the engine in the vehicle. I think its much easier to just drop...
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