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Prev Professional Automotive Repair Technical Discussions for June 11, 2004
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Open Help Requests for All Makes and Models
Help Request Answers
1993 Acura Integra LS 1.8L Excessive Emissions VIN: JH4DA9488P
hello group this acura wiil not pass ga emissions. has excessive nox. fails at cruise, allowed is 1088, it reads 1705 ppm. barley passes at idle with allowed 984 and reads 862. the co% reads o on both. there are no codes stored. checked and rechecked egr syste...
2001 Audi A4 1.8L Steering Angle Sensor VIN: WAUDC68D11
For one of you expert VW tech's I'm sure this will be a no-brainer. When vehicle first came in had a 00778 code - no signal from steering angle sensor ( Which is just the steering wheel clockspring). We ordeded a replacement sensor and installed it. Now there ...
1994 BMW 325is 2.5L heater control VIN: WBABF3328R
cannot adjust heater control always hot at lower heater outlet
1998 BMW 540i 4.4L MIL Lamp on VIN: WBADE6320W
Once again I seek BMW help. You people that work on these all the time truely are good! I wish I had more info because Im stuck. I use an AST retriever to pull codes and alldata as my info source but alldata has little info on codes and diagnostic procedures.C... Trouble codes: 112 (cam sensor ckt)
1998 Buick LeSabre Custom 3.8L interior lights VIN: 1G4HP52KYW
Need Help, Im loosing my mind. I have a interior light that comes on with the drl's, or headlamp, or park lights. all trigger the interior lights to come on, at night when the lights come on so does the courtsey lights, if i just turn on the park lights it sti...
1992 Cadillac DeVille 4.9L compressor VIN: 1G6CD13B7N
Have this cadillac and the compressor will not engage. All fuses are good but I have no power to low pressure switch. I have put it through self diagnosics and there are no bcm codes in memory. We also put it through the reset procedere and still have no opera...
1997 Cadillac Seville STS 4.6L Cooling Systems VIN: 1G6KY529XV
ok folks, this northstar wants to heat up after long trip and after a long pull, long trip= 30 mins or longer. we first found low on coolant, bled system and used vac to pull system down, after long drive temps started to climb, but never overheated, replaced ...
1997 Cadillac Seville STS 4.6L abs VIN: 1G6KY529XV
Net Techs, This Cadillac has a traction control problem. Intermittantly, when takeing off from a stop, you can hear the traction control system apply and the drivers information center reads traction control enabled. There areno codes stored for ABS or any ot...
1986 Chevrolet Astro 4.3L Poor Idle Quality, Surge, MIL Lamp on VIN: 1G8DM15Z8G
when putting the vehicle into gear, the idle goes up to 1300 rpm and vehicle surges and lurches. when in neutral or park, idle drops down to normal.
1997 Chevrolet S10 4.3L Surge, Misfire, MIL Lamp on VIN: 1GTDT19W4V
This is the second one i have seen do this and have still to figure it out. We just replaced the intake manifold gaskets and after we got a cmp and mutiple cylinder miss fire code. Replaced the cam sensor and plugs,wires and rotor. Cmp sensor code dont reset n... Trouble codes: P0300
1995 Chrysler Cirrus LX 2.5L compressor? VIN: 1C3EJS6H7S
Lat summer while on a hot trip vehicle wpould blow high pressure relif valve when at idle for extended times. Chalked it up high heat soak. All the while (after valve closed) air would be cold. This summer no cool, added some R134a, just for band-aid tocheckfo...
1999 Chrysler Sebring JXi 2.5L No Start VIN: 3C3EL55H6X
this car is equiped with a factory anti-theft system and I think this may be causing my no start condition. The car is driven daily on the highway with great maintenance (very well kept)The customer stated that a couple of times it would not start and he would...
1989 Dodge Dynasty LE 3.0L No Start VIN: 1B3BC5639K
car stalled on customer and towed into shop.It will crank over strong but will not start. Acts at times like it flooded but I pulled plugs and they where dry. Checked for spark and have good blue crisp spark. Injectors have power and pulse. No codes, I pulled ...
1990 Dodge B350 5.2L No Overdrive VIN: 2B7JB31Y2L
Hello everyone, I definitely have a tricky one here. I will try to be as descriptive as possible. This vehicle originally went into a transmission shop not moving at all. After rebuilding the transmission, the van was sent to me to diagnose a “no overdrive" co...
2001 Dodge Stratus SE 2.7L compressor VIN: 1B3EJ46U91
Customer complaint of warm air. Pressures are good, relay and fuses test good, and transducer measured good voltage. If you bypass relay, compressor will engage. A/c will work on defrost and for a very short moment it began to work through vents but quit. Can ...
1986 Ford E-150 Econoline Club Wagon 5.0L 2-1 & 3-2 shift VIN: 1FTDE14N9B
the transmission shifts normal through all the gears, under light acceleration. but, it shifts about the same, whether it is floored or under light acceleration. which can get you killed trying to get on the expressway. once at highway speeds it will down shif...
1998 Ford Ranger XL 3.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FYTR14UXW
Has a misfire that feels like once cylinder is out. Replaced plugs, two showed pre-ignition. High (2X normal) resistance in all wires, replaced them. Code P0306 did not return. Low coil output in Cyl 6, 6-8KV, erratic in Cyl 1. Crank position sensor shows AC V... Trouble codes: P0306 (Cyl. 6 misfire)
2002 Ford Taurus SE 3.0L right side interor VIN: 1FAFP53U42
Found dog food in passenger side door piller. remove dash ,heater box, right side kick pannel found lots of dog food in door piller and running pannel. vacuum and clean area drill to access more area deorderize and reseal with spray foam still a bad smell. The...
2002 Ford F-250 Super Duty Lariat 5.4L abs VIN: 1FTNX21L82
hi guys Im not sure what to try next the truck drives fine but if you run up pass 45 mph then coast down to 37 then hit the gas the abs light will come on and the speedo will drop for a second. after a few seconds the abs lite goes off. I hook up the mentor an...
1995 Honda Accord EX 2.7L Multiple indicator lights VIN: 1HGCE6668S
This is virgin territory for us here. The MIL is on, no engine codes. Trans. code P1705. The mil will illuminate upon start up. Once you start driving the trans. indicator will light D1 and flash D4. We have replaced the gear position switch with an OE one. Wh...
1998 Isuzu Rodeo LS 3.2L abs module VIN: 4S2CK58W4W
I have tried to replace the Coil Integrated Module for the code 35, and the new module we recieved set other codes that were not present before. I forgot to write them down, but they were related to solenoid faults, and instucted me to agian, replace the modul...
1999 Isuzu Rodeo LS 3.2L blower & A/C switch VIN: 4S2CK58WXX
When put blower on high the A/C button (and compressor) will sometimes turn off & will get vent air. Doesn't do all of the time. Really think it's the switches, ie blower swithch & A/C switch in the control head but not sure. Any one seen this?
1999 Lincoln Continental 4.6L Misfire VIN: 1LNHM97V9X
this vehicle does a little buck or surge at slow speed going uphill just before the transmission wants to shift as soon as shifts does not do it anymore have tried swapping 2 new coils in to system in all position stays the same runs fine when driving at norma...
1995 Mercury Mystique GS 2.5L Unknown VIN: 1MELM65L8S
Hello, I have an intermittent transmission problem. It has a DTC-628-EXCESSIVE CONVERTOR SLIPPAGE. The car will be going down the highway-60-65-MPH when it has been driven for about 30 miles.All of the sudden the RPM'S will go to about 5,000 RPM'S and then bac...
1997 Mercury Villager (Van) GS 3.0L rear blower motor VIN: 4M2DV1115V
I can't seem to find the REAR blower motor relay and or the REAR blower motor switch relay. I have ALLDATA and On demand and they both list serveal places for them to be and they are no where to be found...I have looked over the drivers side tire inside above ...
1994 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1G2HX52L1R
car came n to shop 1 week ago. had codes p0341 cam/crank error and p0361 est not togglng.customer stated that car would die out and not restart.found loss of fuel injector and crank sgnals good.also check sgnal to and from igniton control moudle and... Trouble codes: P0341 (cam/crank error), P0342 (cam sensor crcut)
2001 Pontiac Montana 3.4L front suspension VIN: 1GMDX03EX1
hi, thanks for the time to reply, this is a puzzler. i've had the rf wheel off, inspected all the steering/suspension components, but can't find anything loose or worn, so i sprayed some silicone lube on the strut mount rubber, still clunks. its a very quiet n...
1998 Saab 900 S 2.3L obd readiness VIN: YS3DD78B9W
Hi there. While ago i had mil light on i had a code for bad front o2 sensor,replaced clear the codes no more problem,the problem i have after clearing the codes i have incomlete obd readiness,cat,evap,o2 heather,o2 sensor,costomer drive the car almost 800 mile...
1989 Subaru E10 van 1.0L rear hub
Hi Folks, Got a rare little Subaru minivan her with a stripped rear hub. This is not a USA vehicle. Does anyone know where to get a hub. I've tried a couple of internet searches, not much luck, the owner ( He has a small rental fleet of which this is one) has ...
2000 Toyota Echo 1.5L MIL Lamp on VIN: JTDBT1237Y
This Echo gets a code 505 for idle valve, usually on cold startups. When it acts up, the car misses noticeable, but just for a few seconds. We removed and cleaned the valve, but it appeared to not be very carboned up, and the dealer does not stock one and says... Trouble codes: 0505 (Idle control valve)
1988 Volvo 760 GLE 2.8L No Start VIN: YV1GA6946J
Car towed in as no start. Was able to enable fuel pump for pressure check. Will not activate pump during normal cranking procedure. Does anyone have a good flow chart for the crank sensor and #1 position sensor? I have 5 volt signal to the crank sensor, and it...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1996 Acura Integra Special Edition 1.8L Poor Idle Quality, Idle is high VIN: JH4DB7565T
Thanks for the help yet everything that was sugjested we had already done. We had already cleaned the air valve but it did not help. Also we check the coolant and coolant level but they also were ok. If the coolant is low the temp sender will not get a good re...
1996 Acura RL 3.5L odometer, ambient air temp reading VIN: JH4KA9641T
One reply suggested we take out the dash pod and inspect the printed circuit for any bad spots under a magnifying glass. We suggested this type of exploratory surgery to the customer who declined. There were no other responses of a similar problem in a like ca...
1994 BMW 325i 2.5L wipers, interior light, window VIN: WBABJ6328R
The wipers are working normal-that is a weird design by bmw. they have an intermintant speed but also when on low speed they switch to intermintant when you come to a stop. I could not find the switch for the light and window operation. A few people said it wa...
1995 BMW 740i 4.0L blower motor VIN: WBAGF6328S
The customer elected to trade the car in. The fix was going to be to replace the final stage unit and blower motor. The final stage unit has been improved to a better design (thanks Ron T). There was some confusion about the final stage unit. The parts man c...
1993 Buick LeSabre Custom 3.8L a/c vents VIN: 1G4HP53L6P
Thanks to those who responded, but this one wasn't a vacumn issue. Turns out the controller grounds the wires to each vacumn solenoid in order to make it switch. The pink wire (A/C - Defrost demand) wasn't the circuit affected. According to the wire diagram on...
1994 Chevrolet Caprice Classic 5.7L A/C compressor VIN: 1G1BL52POR
Sent the vehicle to the dealer for ECM reprogram that fix the problem.
1997 Chevrolet Astro 4.3L speedometer VIN: 1GNDM19W9U
I don't think this van is going to be fixed here. The only thing i got to really check was the wires from speed sensor to pcm and i could find nothing wrong. The owner needed the van back so thats as far as i got. Anyway the vehicle is out of my hair because t...
1997 Chevrolet C1500 5.7L No Start, Cuts out, Stall VIN: GTEC19RXV1
Turns out that some information was left out. Like when the truck stalled, it would turn over but would not start. If it sat for a few minutes, it would start right up. As far as the radio and the dash lights flickering or going out, that was just a myth the c...
2002 Chevrolet Trailblazer LS 4.2L fan clutch VIN: 1GNDS13S22
Thankyou to mark, erick, paul, and especially to steven from B.C. the information you sent was just what i needed. the cure was a newfan clutch. Randy re:Aautoteacher at
1995 Chrysler Sebring LXi 2.5L No Overdrive VIN: 4C3AU52N4S
FIXED -- OD shift button intermittent open in the wiring, The customer had a friend install a stereo for him he tapped into the wiring for the shift button, We repaired the wiring - Road Tested - OK. Thanks again to iATN and to all who replied.
1997 Chrysler Sebring LX 2.5L odometer/rpm VIN: 3C3E255H6V
Most of the replies pointed toward the printed circut board. Nobody had any specific test procedures for this. The customer is willing to fix this problem but is going to wait till the next service for the fix. This car is hard to tie up for the day. The day i...
1986 Dodge Ram 50 Custom 2.0L electrical VIN: JB7FP24D2G
I want to Thank everyone for their help. I renewed the battery cables, which corrected my ground issues and unplugged my pre-cat and it started fine. New cat on way for finish on Monday. I have one question for any one, my ignition fire still faded after the i...
1998 Dodge Ram 2500 Truck 5.9L No Start VIN: 3B7K52666W
I only received 2 replies. Both were relating to fuel. My problem was the energized supply to the fuel relay. Even though the MOD wiring did not show the brown/ white wire going down another harness (it showed it going straight to the ECM), I had exhausted all... Trouble codes: P1689 (No communication between ECM and injection pump module).
1995 Ford E-350 Econoline 7.3L Hesitation, Stall, MIL Lamp on VIN: 1FDKE30F3S
Ok…. I haven't solved this one yet…. I did get a manual pressure gauge hooked up in line from the high pressure pump to the heads. I noticed wile cranking, it takes about seven seconds to build about 1000 PSI and start the engine. I don't yet know if that is n... Trouble codes: P1211 (injector control pressure out of range), P0340.
1998 Ford F-150 4.2L No Start, Poor Idle Quality, Stall
i have chalked this one up to 'should've known better'. last night i instructed the tech at the shop to pull the balancer for inspection. got a call around noon telling me he had the timing cover off. oh well, i was able to make sure timing was on. also verifi...
1999 Ford F-150 4.2L MIL On VIN: IFTZX1723X
Many thanks to the seven members who took time to read my post and helped me fix this truck.The code P1780 set because The computer did not see the overdrive switch signal.The fix was to replace the gear shifter the wire was broken at the bend where the wire e...
1991 Jeep Cherokee Laredo 4.0L abs VIN: 1J4FJ58SOM
Installed new hcu & actuator Pedal feels fine pumps runs normal (60) seconds
2000 Land Rover Discovery Series II 4.0L Imobilzer VIN: SALTYY1245
Thank you for all the replies. We have sent the disco down to the Rover guys, and it seems that they had Put the wrong market seetings into the Body control mod. We are servicing more land rovers of late and i think it's time to start thinking about a rover sc...
2004 Lexus RX330 3.3L Misfire, MIL Lamp on
The customer has the vehicle back and reports that all is well. The problem seems to have been the number five ignition coil. Moshen hit the nail on the head and pointed out that there is a TSB for Toyota as well. Some valid replies were injector, valve seatin... Trouble codes: P0305 (misfire number five cylinder).
1998 Mercury Mystique LS 2.5L head gaskets VIN: 1MELM66L9W
Many thanks to all who replied you answered my question completely, #1 the intake does not have coolant passages. Therefore the intake cannot leak coolant into the cylinders. We borrowed a borescope and can see very faintly the coolant running in the cylinder ...
1993 Oldsmobile 98 Regency Elite 3.8L No Start VIN: 1G3CW53L1P
This is a good example of stopping short when I should have gone further. The problem was in the wiring to the sensor. Using the Vantage, I had a good signature form for both 3x ans 18x. Yet waveform was not enough. Chart A3 page 3 test 7 has you power the sen...
1994 Oldsmobile 98 Regency Elite 3.8L Surge VIN: 1G3CW5218R
our final diagnosis was the tcc in the transmission, the customer didn't want to repair it until it got worse.
1989 Plymouth Acclaim 2.5L flucuation in temp
lots of help on this one thank-you. most said either drill 1/8 hole in thermostat or heater core plugged. I the t-stat mod first and it helped. gauge still flucuated but it was much slower. the real fix was back fluch heater core due to the fact that the heate...
1990 Plymouth Acclaim 2.5L Engine vacuum loss VIN: 1P3XA46K4L
Thanks to everyone that responded, This one was the one way check valve or lack of one seem customers son had replaced the vacuum line from the power booster to the control unit with rubber vacuum hose and did not put back in the check valve. replaced with new...
1993 Pontiac Grand Am SE 3.3L No Start, Poor Idle Quality, Cuts out, Stall VIN: 1G2NE54N6P
gentlemen ,I was aware of the lack of technical details when I composed my request.Your responces helped to convince the owner that educated guessing would not get the desired results.I convinced him to do some real/basic diognostics(2hrs)and the results were ...
1997 Subaru SVX L 3.3L speedometer VIN: JFICX650VH
There was no consensus on this repair. The common problems are the front VSS that transmits to the speedometer and the speedo head itself. Being ignorant about these cars I referred the owner to the dealer for a professional repair.
2000 Subaru Outback 2.5L MIL Lamp on, P0462F VIN: 4S3BH6651Y
Thanks to all Responders. The customer reported that after the guage repeplacment and 6k miles the gauge does not go to empty but the low fuel light comes on and the check engine light comes on. The end problem was a failing voltage regulator, part of the pr... Trouble codes: P462.
1998 Suzuki Swift 1.3L spark VIN: 2S2AB21H4W
there were many people out there that tried to help. I thank everyone of them. After hours and hours of research trial and error the problem still exists. the fixes we tried are the following replacing the ECM, crank shaft sensor, cam shaft sensor, air bag con...
1994 Toyota Estima Van 3.0L Mechanical VIN: 6T91MPAAAR
THANK YOU to 3 'angels' - Wayne, Paul [...] from New Zealand. I relayed your repsonses to my friend who has already found and ordered what he needs!! You guys were wonderful. Thanks again.
1998 Volkswagen Jetta TDI 1.9L Compressor Clutch VIN: 3VWRF81H7W
We found that there was a loss of power supply from the DFI ECM to the A/C clutch relay. We bridged relay terminals 30 & 87a. Since pressure and temp switches feed to coolant fan control module which also activates the A/C compressor everything seems to work f...
1999 Volkswagen Jetta GLS 2.0L Mechanical VIN: 3VWSA29M6X
We recieved no help on this one but we should have a new manual today. THANKS Jim()(
2001 Volvo S60 2.4L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: YVIRS58D61
Thanx to all who replied, you were all right on. The throttle control was defective. Ordered one, installed, and towed car to Volvo dealer to reset (faster and cheaper). Car runs like new. Trouble codes: P0121 (Throttle/Pedal position sensor/switch A circ. range/performance problem), P1618 (AW 50-42 TCM high input), P0810 (clutch position control error).
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