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Prev Professional Automotive Repair Technical Discussions for May 22, 2009
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1996 Alfa Romeo Spider 3.0L No Start VIN: ZAR916000T
After working on finding a high battery draw car will not start (engine starts but will not run). I had unpluged a lot of dash and fuse box connectors, fuses and relays trying to find draw. Despite permanent battery draw (360mA) car was working fine before. ...
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1998 Audi A4 2.8L Poor Idle Quality, MIL Lamp on VIN: WAUED28D7W
Car came in for inspection and emissions with a Cel on. Owner requested a tune up and when codes were extracted we found P0300,P0302,P0304,P0305,and P0306.Codes were cleared and car was test driven. Cel began to flash then remained on steady. Codes were again ... Trouble codes: P0300 (Random missfire), P0304 (Cyl 4 missfire), P0305 (Cyl 5 missfire), P0306 (Cyl 6 missfire)
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1999 Audi A6 2.8L exciter wire VIN: WUADA2YB9X
Hello and happy holidays,I inhereted this 1999 A6 from another shop and it is eatimg up alternators electrically.I am installing a reman beck unit and have added a reduntant ground direct from battery.That said in a previous repair a new plug and wire end were...
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2002 Audi Allroad Quattro 2.7L Level Control VIN: WA1YDG4B02
Hi there, This Allroad has a problem with the right front suspension 'kneeling" down at odd times. I sprayed down the airbag with soapy water & see no leaks. It has sat immobile for as long as a week and not leaked down. It has been parked at a convenience st...
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1992 Buick Regal Custom 3.8L No Start VIN: 2G4WB54LXN
hi hate to bother everyone out there but this thing has me just puzzled. ok first veh was towed in no start. fuel psi good. i have no spark at all. pulse 2 flashes at time then fades. no codes. no rpm signal, replaced crank and cam sensors with new, then with ...
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1986 Chevrolet Corvette 5.7L Horn VIN: 1G1YY0782G
I need the location of the horn relay. Horn is inoperative. Fuses and horns check out ok. Grounding wire behind horn pad does nothing. I am unable to locate horn relay to test further. MOD indicates relay is in the "convenience center" but I am unable to locat...
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1995 Chevrolet Astro 4.3L tcc quad driver module VIN: 1GBDM19W9S
Need your imput again please. Vehicle came in with only first gear working and owner stated had been to a quiky place to have fluid changed but tranny still wouldn't shift.Couldn't afford new or rebuild so we replaced with a used unit. Used unit seemed to shif...
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1999 Chevrolet Silverado 1500 4.3L Poor Fuel Economy VIN: 1GCEC14W4X
Costomer complains of errattic gas milage. Sometimes very good and next tank might only be half the milage of last tank. Had K&N air filter and did find excessive contamination on MAF. Cleand sensor and ran alot better. LTF went from 12% to 2%. Cam retard stay...
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2000 Chevrolet S10 2.2L tcc VIN: 1GCCS1952Y
Hello all, need direction on this chevy. The truck has no codes. drives good and all seems well. However drive truck at steady speed for long duration the tcc slip speed would slowly come up to above 100-800 rpm fluctuate around some even with tcc duty and pwm...
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2002 Chevrolet S10 4.3L Poor Idle Quality, Stall VIN: 1GCCS19W42
Ok wondering if anyone can steer me in a direction on this one. Vehicle came in about a week ago with customer complaint of vehicle stalling at stop signs. After multiple test drives monitering pids and having a fuel gauge hooked up we could not verify concern...
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2004 Chevrolet Silverado 2500 HD 6.6L fuel gauge VIN: 1GCHC23134
Hello group,got this 04 Dura Max single tank chevy truck(diesel)customer says when gauges is at quarter of tank,will run out of fuel,replaced in tank unit,not much fuel in it,drove vehicle,light came on got 3 chimes,got the low fuel message,I was only able to ...
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2006 Chevrolet Impala LS 3.5L outside temp VIN: 2G1WB58N66
Car came in for no A/C compressor. The outside temp sensor was reading -40F. I replaced the sensor know it is reading 90F. in the hvac data list. The problem I have is the DIC center still says ice possible when you start the car. That makes Hvac head say ambi...
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2004 Dodge Caravan SE 3.3L insturment cluster VIN: 1D4GP25R64
A body shop customer of ours towed us this van. There body man thought that boosting this van by reversing the polarity was a good idea. So there intial compaint was that the van would run but there was no insturment cluster. I started by trying to scan the BC...
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2005 Dodge Ram 1500 Truck ST 4.7L Stall VIN: 1D7HA16NX6
customer states that engine will start and idle fine, but when problem occurs, as soon as gearshift lever is placed in reverse engine will die and none of the gauges work and odometer is blank,turn key off restart and may happen 4 or 5 more times or truck may ...
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1990 Ford Bronco Custom 5.8L No Start VIN: 1FMEU15H5L
Vehichle tow in for No Start. Check fuel pressure 40 PSI. Spark ok. I don't know where to start. Checking ground at top radiator ok. Thank you so much in advance for all your help.
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1998 Ford F-150 XL 4.2L Valve train,right bank VIN: 1FTZF1724W
I haven't torn it down yet. Found a few TSB's regarding intake manifold problems but they addressed coolant in the crankcase - NOT oil in the coolant. It is a small amount, but it is there along with the tapping/knocking noise. No history of overheating (per c...
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2002 Ford F-350 Super Duty Lariat 7.3L oil use VIN: 1FTSW31F12
No oil leaks outside, uses 10 quarts of oil every couple hundred mile . No smoke out of tail pipe. Turbo seals?
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2002 Ford F-150 King Ranch 5.4L Passenger electric window master switch VIN: 1FTRW08LX2
Hey, fellas. I have a master switch for the pass. window that keeps going bad. We have put 4 new switches in. We thought the motor might be drawing too much, so we replaced the window motor. The switch on the pass. side works fine and we haven't had to replace...
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2008 Ford F-250 Super Duty XLT 5.4L MIL Lamp on VIN: 1FTSW21508
hI TECHS WE NEED HELP WITH THIS F 250. VEHICLE BROUGHT IN WITH CHECK ENGINE LIGHT ON. HOOK UP SCAN TOOL AND TEST DRIVE. VEHICLE HAS VERY LITTLE POWER ESPECIALLY GOING UP HILLS. SCAN TOOL DISPLAYED 8 ENGINE CODES. PO010, PO020, PO135, PO141, PO155, PO161, PO443... Trouble codes: P0010, P0020 (intake camshaft position actuator open circuit bank 2), P0135 (o2 sensor bank 1 sensor 1), P0141, P0155, P0161
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1993 GMC P3500 5.7L head gasket VIN: 1G1JP32K6P
This vehicle is an equipment truck for the fire dept. It idles for hours on end. The left bank head gasket is blown between the center cyls. The gasket on the right side looks to have a hot spot in the same place. I am looking for thoughts on preventing a reoc...
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1995 GMC Sonoma SL 2.2L Excessive Emissions VIN: 1GTCS1449S
this truck has high nox reading at 15 mph, the coolant temperatrue is 190'f, the fuel pressure are little high, the lambda are 1.035. af ratio 15.22, it's little lean, i double check the vaccum and exhuast twice, measure there no leak. thanks every one read th...
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2000 GMC C3500 Sierra SL 6.5L Excessive Emissions, Hesitation, MIL Lamp on VIN: 1GDKC34F5Y
Lots of black smoke no power,no turbo.P0236 was hard code when came,Pinpointest wastegate solonoid,can operate with scanner on and off,have 15-17 inches of vac at boost solonoid and at wastegate,actuator and rod moves freely. Boost press always at 14-15 P.S.I.... Trouble codes: P0236 (Turbo boost control)
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1993 Honda Accord LX 2.2L Stall VIN: 1HGCB7650P
Top of the day fellow techs.this honda came in with a stall.car idles fine,will idle all day sitting still.when driving normal,going down the road, while execelerating the car just stalls but never dies or cut off completely.car will continue to run on wide op...
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1995 Honda Accord EX 2.2L No Start VIN: 4455676756
car came in on a tow truck. car will no start if you leave it outside overnight. a couple cranks and it starts right up. customer said when car would not start she put it in nuetral and push it a couple feet and then put it back in park and it started. if anyo...
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1999 Honda Accord LX 2.3L vibration at idle VIN: 1HGCG5649X
when we did the timing belt i felt there is vibration at idle, i can feel that vibration trough the steering column when at idle. we did replace the rear motot mount with an aftermarket one, and the side motor mount with an oem one but we still have the vibrat...
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2000 Jaguar S-Type 4.0L Misfire VIN: SAJFA01D3Y
Vehicle first came in with check engine light on. Multiple cyl miss. Replaced plugs, boots, valve cover gasket with boot seals. Couple of weeks later vehicle comes back with a miss on cyl #2. Swapped a couple of coils, cleared codes, and hoped the pcm would pi...
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1987 Jeep Cherokee 4.0L engine VIN: 1JCWL7831G
howdy, this jeep came into the shop as a "cranks but wont run" I checked fuel psi and spark, both ok, when cranking the engine didnt sound quite normal for one of these, so i was thinking it might have a loose or jumped timing chain so I went to checked the co...
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2005 Jeep Grand Cherokee Laredo 4.7L transmission VIN: 1J4HR48N45
Hi, I have a Jeep Grand Cherokee Laredo, When the vehicle is cold and put into drive to take off there is a rattling sound coming from the transmission. After driving for a while and the vehicle warms up the rattling sound goes away. Also while cruising and st...
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2000 Lexus LX470 4.7L Rough idle and missing at road speeds VIN: JT6HIOOWOY
Codes PO300 PO302 PO304 PO306 PO308 At first there was just a rough idle, any accelerator smoothed out, now missing at highway speeds. Ran well 7K miles after timing belt and water pump were changed out. Checked fuel pressure & coils
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2001 Lexus IS300 3.0L power door locks VIN: JTHBD18241
i sure hope somebody can help here i have a lexus and really can not find anything to help me the power door lock function as you are driving the vehicle at slow speeds and or stopped the always function to the unlocked position never to the locked pos. and it...
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2001 Lexus IS300 3.0L evaporator VIN: JTHBD18291
Is Alldata correct at the evaporator time of 4.6 hrs. Alldata does not show a procedure for evaporator replacement only for evaporator case replacement. We tried taking the blower housing off first to gain acess to the evap. but the solid metal heater pipes ke...
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2003 Lincoln Navigator 5.4L Traction Control VIN: 5LMFU28R13
Here we go. This is a family members vehicle and I need to fix it before all my hair falls out. Vehicle came in w/ Check Advance Trac light in message center, 4WD inop, and a rattling type noise when cruising under light load. Hooked up Modis scan tool and fo...
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1985 Mercedes-Benz 380SL 3.8L overfueling VIN: WDB1070451
This is actually a 1983 380sl v-8. The car when started cold overfuels to the point of excessive black smoke, as if a choke were closed. It is extreme! The cold start valve and related sensors have been tested, this is to include the frequency valve and the co...
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2001 Mercedes-Benz E320 3.2L signal light VIN: WDBJF65J21
Hi every body. Please I need your help in this one. This car came in, on a towing truck,becuase a dead battery. We installed a new battery and a rebuilt alternator. Started the car, and let it go. Car came back because power window switch, did not work with th...
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2003 Mercedes-Benz ML500 5.0L Stall VIN: 4JGAB75EX3
I need some help on this Mercedes SUV. The engine stalls intermittently when it hit a bump and it starts right back up.It happened few times before and never set any code. Crank sensor is a common problem on this vehicle,but it always shows OK. Any ideas?
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2004 Mercedes-Benz SL500 5.0L Alarm, battery VIN: WDBSK75F74
This car came in 6 mos ago for "low vlotage-turning off elec. consumers" warning coming on. Tested batteries and found supply battery bad-replaced. Since the alarm horn will go off intermittently. Once while driving down the road on a long trip, once sitting i...
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2006 Mini Cooper S 1.6L Airbag system VIN: WMWRE33506
This is one of our used cars & I'm looking for some direction on diangostics for the SIR (MRS-V) system. We only have an OTC Genysys scanner which is not capable of pulling system codes or data. A local shop scanned codes for us and came up with codes 82, 88, ...
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1986 Nissan D21 SE 3.0L Hesitation, Surge VIN: 1N6HD16S7H
The problem with this vehicle is at 3k rpms it acts like its cutting out. When checking the injectors only one is firing at a time. I switched the injector wires in the connector to see if the other injector would work and it won't. Checked the resistance of b...
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1993 Nissan Altima GLE 2.4L missing unknown VIN: 1N4BU31F8P
this car has a missing or it wants to shut off. It does not do it all the time. You can watch the tac jump when it misses and u give alittle gas. If you let it sit for couple of hours it like resets itself and drives good .Any ideas are welcome.
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2001 Nissan Pathfinder LE 3.5L MIL Lamp on VIN: JN8DR09Y71
Hi All, need some help with this Pathfinder. I have a code P1490. I replaced the vacuun cut valve over the rear axle and the white diaphram and repair corroded wires to the valve. Still getting P1490 right away. Can anyone guide me the right dirction. Thanks i... Trouble codes: P1490
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2002 Nissan Maxima SE 3.5L MIL Lamp on VIN: JN1DA31D62
oxygen sensors replaced tested old sensor resistance good tested o2 sensor harness 12v present ecm ground control functioning cleaned and installed redundant ground straps pin tested all aplicable circuits at ecm all 4 codes return at once if i clear codes aft... Trouble codes: U1000 (can communication line), U1001 (can communication line), P0031 (oxygen sensor heater circuit b1s1), P0051 (oxygen sensor heater circuit b2s1)
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1998 Plymouth Grand Voyager Expresso 3.3L Electronic VIN: 1P4GP44G6W
Van came in customer stated the check engine light on, the was no light but had p1698 in memory,check bus with scanner and found communications with all computers also traced 3 powers to tcm, all are working correctly. Scanned tcm and found codes 12 19 51 74 i...
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2004 Saturn L300-1 2.2L brake pedal VIN: 1G8JC54F14
Help, This client came in with BRAKE PEDAL dropped out to floor, confirmed w/Technician = NO BRAKE PEDAL. Note: NO BRAKE LIGHT ON, BRAKE FLUID Full, BRAKE INPECTION = OK Road Test after vehicle was turned off = BRAKE PEDAL back to normal This problem hap...
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2006 Saturn Ion-2 2.2L MIL Lamp on VIN: 1G8AZ55F56
hi every one this one has me stumped. car came in with p0411 code found air pump filled with water not working. replaced pump ran car through is cycle after the third start light came back on . check fuses all good checked the relay near the l/f headlight had ... Trouble codes: P0411
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2006 Scion xB 1.5L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: JTLKT33416
Scion came in with an intermittent jerking/bucking problem and codes P0335 and P0339 Crank sensor codes. Monitoring the crank sensor on lab scope when the problem occurred (of course won't happen in shop, only on road) and saw a loss of crank sensor signal, wo... Trouble codes: P0335 (Crank sensor), P0339 (Crank Sensor)
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1994 Toyota Camry XLE 3.0L cam seals VIN: 4T1GK13E9R
car in for t belt / water pump and all seals things going well till get to rear cam seal not the same size as front seal smaller in id and od. talked toyota parts say they have never seen that before any one here see that problem thanks dkowell
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2001 Toyota Camry CE 2.2L high idle VIN: 4T1BG22K21
CAR HAS NO CODES AND RUNS GOOD ONCE IT STARTS TO WARM UP. BUT WHEN STARTED COLD WILL IDLE UP TO 2000 RPMS AND GRADUALY IDLE BACK DOWN OVER ABOUT A TEN MINUTE TIME FRAME. lOOKS LIKE THE IAC % STARTS AT 58% AND COMES DOWN AS IDLE COMES DOWN. OTHER THAN FAST COLD...
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2001 Toyota Corolla CE 1.8L dome lights/battery drain VIN: 1NXBR12E61
Hey guys... I have a current draw of 217ma on the 15a dome light circuit located at the under the hood fuse block with all the doors shut and no lights on. The interior light does not work when in the "door" position (and door open) but will if you put in th...
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1998 Volkswagen Cabrio 2.0L engine starting VIN: 3VWAA81EXW
towed in. crank no start. found ignition coil arching externaly. replaced coil, plugs, wires, cap and rotor. still no start. checked timing. all marks lined up. during diag car started and ran perfect, then bogged down and died again. replaced throttle body an...
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2004 Volkswagen Passat GLS 1.8L comfort control module VIN: WVWPD63B84
I have had to replace the comfort control module in this vehicle due to water damage. It was drawing 300ma constant and the rear windows would not function from the drivers seat. Through my research I thought that upon installing the comfort control module tha...
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW M5 5.0L Reverse Lights VIN: WDSDE93451
Customer just wanted the reverse lights to work,so I moved the plug from the gear switch to the reverse light switch and they worked properly.No engine light car seems fine.I don't care for this fix but the customer wanted it. Thanks for the replies. Phil
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2006 BMW M3 3.2L smg hydraulic unit VIN: WBSBL93406
thanks to those who replied, a new hydraulic unit and everything is back to normal. thanks again
2
2001 Cadillac DeVille 4.6L Cuts out, Stall, MIL Lamp on VIN: 1GN45379ID
simple stuipid fix... OLD SCHOOL GM RELEARN...put it on the wheels ...forced throttle with brake to keep it running... test drove ..came out xxxcelnt ... replaced map due to bad sensor{did not cause drivability issue} no codes ...runs like a caddy...thnx MRDRB...
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1995 Chevrolet Camaro Z28 5.7L Hesitation, Misfire VIN: 2G1FP22P7S
OK here goes. The customer had to leave on a trip and didn't want to leave it with us to find the problem. We did disconnect the EGR valve and it could still be felt. From what I know about the map sensor it is only there for the EGR diagnosis. The MAF sen...
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2001 Chevrolet Silverado 1500 5.3L Hesitation VIN: 2GCK19T7Y1
I had talked with my customer and he needs his truck back for the weekend. I had done an injection flush with the GM top end cleaner and the OTC flush canister. I cleaned the trotle body. I tried a known good MAF off my personal truck. Compared fuel pressure t...
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2001 Chevrolet Silverado 1500 4.8L 1-2 shift VIN: 1GCEK19V7Y
Thank you for all the replies. As I was waiting for replies to come in, I pulled the valve body to give it another once over. I found that the accumulator valve sleeve can go in one way or a 180 degrees off. When your 180 off the passages on the sleeve and ...
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2005 Chevrolet Silverado 1500 LS 5.3L Differential carrier VIN: 2GCEC13T35
Thanks to all who replied. We were not able to exactly pinpoint the source of the noise, but due to some damage to the surface of the pinion gear, we are assuming that the damaged face was the source of the noise. Several replies suggested that this may be t...
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2007 Chevrolet Impala LS 3.9L tpms VIN: 2G1WS55R77
Id like to thank everyone who replied. My codes off snapon scanner we took the 4 off front and put co in front of code and that gave me proper codes, then i performed the tsb 07-08-52-0001b with alot of help on the phone with Paul [...]. Must have tech 2 a...
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2008 Chevrolet Avalanche LS 5.3L fluid VIN: 3GNFK12338
THANKS TO ALL THAT REPLIED, DAN AND ROBERT FROM CAL. HIT IT ON THE HEAD. THERE IS A GM TSB FOR DIFF FLUID ODOR. AND THEY FLUSH THE DIFF AND INSTALL A SHORTER VENT TUBE FILTER AWAY FROM THE FILLER NECK TO RIGHT ABOVE THE SPARE. THIS TSB IS MORE THAN A YEAR OLD....
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2004 Chrysler Sebring Limited 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1C3EL65RX4
Well the guys that said check o2 sensor was correct unplugged o2 misfires gone so we swapped the bank 1 and bank 2 sensors and misfires followed o2 sensor so this one is fixed thanks too all that replied. Trouble codes: P0300 (random misfire detected), P0301 (cylinder 1 misfire detected), P0303 (cylinder 3 misfire detected).
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2000 Dodge Ram 1500 Van 5.2L No Start VIN: 2B6HB11Y2Y
thanks for all the help the heip give me some clues swapped injector connetors fault followed connector iam in task of repairing harness will update when ihave more
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2003 Dodge Grand Caravan ES 3.8L Cuts out VIN: 2D4GP54L73
thanks for all your replies in the end the can needed a computer. after many many hours fighting with it we decided to let a chrysler tech watch it misbehave on his equiptment. they were unable to diagnose the problem either, so on a whim a computer with a dif... Trouble codes: P1391 (ckp cmp signal loss).
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1996 Ford F-350 XL 5.8L clutch slave cylinder VIN: 1FTJW36H8T
I would like to thank everyone for the input except for one person and you know who you are. Can you use you energy to help people rather than critisize them please. We ended up replacing the flywheel due to it being .012 thinner than the new one, so it must h...
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1997 Jeep Wrangler SE 2.5L a/c VIN: 1J4FY29P9V
OK. So I got on the horn with the previous owner and he said it was a jc whitney a/c kit. i called them for tech support and they refered me to their supplier. their supplier uses all jeep parts for their kit except their compressor which is a cheap chinese lo...
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1999 Land Rover Range Rover 4.6L No Start VIN: SALPV444XA
I found a broken wire in the harness along the right door rail. This was the wire that powered the coils
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1984 Mercedes-Benz 380SE 3.8L Hesitation, Surge
Hello I have tried everything suggested here on all replies, A BIG THANK YOU TO EVERYONE, The only thing I have not tried yet is to replace the PCM to get the freqency valve to work, BTW you can energize the valve with an injector tester as I did and the valve...
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2003 Mercedes-Benz CLK320 3.2L compressor VIN: WDB2094652
thanks for all the advice,the multifunction relay was the problem,sent vehicle to dealer for clarification,system works now.
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1998 Pontiac Bonneville SE 3.8L Blower motor VIN: 1G2HX52K8W
I havent actually fixed this problem yet, customer short on funds. She just had a kid. That will do it. Jon [...] let me know that the resistor is in the module and...
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1995 Toyota 4Runner SR5 3.0L Cuts out VIN: JT3VN39W8S
Hi all. Thanks for the responses. Great replies, but the customer has not brought the vehicle back. He said he is getting rid of it. I thinks Steve from Kansas and Victor from Nevada had the right ideas, but I guess we`ll probably never know. Several others ha...
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1999 Volkswagen Passat GLS 1.8L Windows,locks,interior lights VIN: WVWMA63B1X
YES, THE CAR IS FIXED. AFTER REPAIRING THE CORROSION ON THE CONNECTOR UNDER THE FLOOR I CHECKED FURTHER AND FOUND SOMEONE HAD REMOVED A FUSE. ONCE I INSTALLED THE MISSING FUSE ALL WAS WORKING AGAING. THANKS FOR ALL THE HELP FROM YOU FELLOW GURU'S
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2002 Volkswagen Beetle Sport 1.8L Misfire, MIL Lamp on VIN: 3VWED21C62
After doing some dissassembly it appeared that the head had been off before. That led us to remove the valve cover and discover that the cam timing chain was off 1 tooth. We reset the cams and replaced the tensioner, Problem solved. As far as the P1296- erro... Trouble codes: P1296, P0300, P0304.
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1989 Volvo 760 2.3L No Start, Cuts out VIN: YV1GA8741K
Well first of all, thanks to everybody who responded to my SOS, many techs mentioned things like the radio supression relay and other parts. I jumped out or outright swapped just about everything with a plug going to it, Luckely I had a friend with lots of tes...
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1996 Volvo 850 GLT 2.4L Mechanical VIN: YV1LS555XT
its out the door got valve cover back on without factery tools had to take timing belt off who ever had it before me didnt put any sealant around cover
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