Automotive Technicians Technical Discussion and Fixes for May 31, 2004

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Open Help Requests for All Makes and Models

	Help Request	Answers
	1995 Buick LeSabre Limited 3.8L 1st gear VIN: 1G4HR52L5S Transmission brought to shop by another shop. Tech said that it won't move in od but it will in 1 or 2, fluid burnt.I tore unit down and found all clutches in good cond. I found the 2-1 band burnt bad. I never seen one of these fail. I looked over the servo, a...	View
	1996 Buick Skylark Custom 3.1L MIL Lamp on VIN: 1G4NJ52M6T Hello fellow IATN Techs, Got A problem with A EGR I went to the Archives and found lots of help,most of the time we find the answer, But one tech, answered A post on 4/20 2003 his name is Tom from Ohio, Said he had had A similar problem with A skylark code PO4... Trouble codes: P0401	View
	1990 Chevrolet Corsica LTZ 3.1L No Oil to rocker arm VIN: 1G1LZ54T5L My daughter bought this car from the guy next door .Someone put new head gaskets on it and never did get it to run. Since my daughter thinks I can fix anything for her {for free} I spent a month off & on fixing all the wiring & stuff they had wrong.Now it runs...	View
	1991 Chevrolet Beretta GT 3.1L Poor Fuel Economy VIN: 1G1LW13T8M Hi, I need some help with this vehicle: After a recent engine swap, the fuel mileage on this Beretta has dropped significantly. The fuel mileage has dropped to 14.6 mpg. The engine was taken from a '92 Cavalier which was getting excellent fuel mileage. I have ...	View
	1995 Chevrolet Camaro 3.8L Poor Idle Quality, Hesitation, Stall VIN: 2G1FP22KOS Hello everyone, this car drive good most of the time but intermitently when coming to a stop the idle starts to vary from 800 to 2200 rpm when at a stop light your foot better be on that brake pedal realy good because when it decides to surge it tries to take ... Trouble codes: P1635 (5V reference A circuit problem), P0122 (TPS low)	View
	1998 Chevrolet Express 2500 LS 5.7L No Start VIN: 1GCGG25R2W Hello all and thanks in advance for your time. I have this express van 2500 that has a starting problem. The fuel gauge goes past full and the fuel pump will not run,Within a minute or two of turning the key on the gauge will come down and the engine will star...	View
	2001 Daewoo Lanos S 1.6L No Start VIN: KLATF69YD1 Hello All, Special thanks in advance for taking the time to read my post.This Lanos with 1498cc engine type: 15SMS,and body style: TF69Y,PCM has two light blue sockets one with 32 terminals(16+16) and the second socket with 24 terminals(12+12).After an acciden...	View
	1992 Dodge Dakota 5.2L Misfire VIN: 1B7GL23Y8N i have this dakota with a random misfire between 11 to 12oo rpm.rev any higher and problem gone.while this is happening it goes very lean,but any higher reves and it smothes right out.the weird thing is it switches cylinders.i changed the complete secondary sy...	View
	1999 Dodge Ram 1500 Van 5.2L Wipers VIN: 3B7HF13YXX Hello all, I have this dodge pickup here that has no Intermittent wipers. The wipers work great on low or high, but do not function at all when you turn the switch to any of the delayed positions. I am unfamilier with how this system works, but I assume there...	View
	1996 Ford Explorer Eddie Bauer 4.0L Excessive Emissions, Poor Idle Quality, Surge, Stall VIN: 1FMCU34X3T Hello All, I have this Explorer that has me baffled. When it came in the shop I had several codes but found a main vacuum hose off so erased codes and only one has returned since and that was a PO171. However, that code did not return for several days in which... Trouble codes: P0171, P0174, P0420	View
	1996 Ford F-250 XL 7.5L engine/cooling system VIN: 2FTHF26G4T Hi group, it's a sad day when you need help on your own vehicle. But, that's where I'm at without warning. My 96 F250 has been purring perfectly for 73000 miles with all the routine service done on or before schedule. I went to my shop over this week-end and n...	View
	1991 Jeep Cherokee Laredo 4.0L abs VIN: 1J4FJ58SOM Jeep has no assist (hard pedal) Pump runs all the time Feels like internal leakage I do not have miller test tool for hydralic leak test What about converting to conventional braking (booster & master) no abs???	View
	1997 Mazda 626 DX 2.0L clutch VIN: 1YVGE22C2V Customer brought in this Mazda with the clutch pedal grabbing right at the floor. We first tried bleeding and even replaced the slave cylinder without results. After more careful examination, we noticed that the crank pulley was moving as the clutch was applie...	View
	1991 Nissan Pathfinder SE 3.0L noise in transmission VIN: 1N65D11Y1M Good afternoon Techs, Customer comes in and said"My throwout bearing is bad and I want to replace it as well as my clutch because it slips sometimes". Gave him a price and here we go. I checked the truck in the driveway and the clutch was slipping bad enough t...	View
	1996 Plymouth Grand Voyager SE 3.3L turn signals, heater, parking lamps, rear wiper an VIN: 1P4GP44R7T The following problems all occurred at the same time. The air bag light came on, rear wiper, turn signals, heater, and parking lamps do not work. With the diagnostics from the service manual it lead to a body control module. After it was installed still no res...	View
	1997 Volkswagen Jetta GLS 2.0L no cruise VIN: 3VWSA81H5V I checked all switch inputs and pedal switches.Actuator system is good and I substituted vacum motor.There are no vacum leaks.There seems to be a power source that comes from the auto trans computer that I have not confirmed to be recieving.Any therory or help...	View
	1998 Volvo V70 X/C AWD 2.4L axles driveline VIN: YV1LZ5640W Volvo techs: This station wagon makes a loud "klunk" noise that also causes a severe shudder but only when making sharp left turns and smetimes sharp right turns.On the straight away on the freeway it is smooth and quite as if nothing is wrong. The noise is n...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1998 BMW 750iL 5.4L Starting VIN: WBAGK2325W We have fixed the problem with the starting issue. I was using the x-431 scan tool and it would not show me key authorization, it would only show me a fault in the key circuit. I sent the car via wrecker to a friends shop with a bmw tester and he had to synchr...	4
	1990 Buick Electra Park Avenue Ultra 3.8L electro/hydraulic VIN: 1G4CU54C1L Thank you everyone for helping me & I have fixed car. The pump on the master cylinder would get 12.5 volts every time the brake pedal was depressed. Holding foot steady would disengage voltage & pressing further would turn pump on again & make pressure. The re...	4
	1995 Chevrolet Blazer 4.3L Poor Idle Quality, Cuts out, Stall We finaly removed the Intake manifold,found a rats nest of carbon.Cleaned it out,cleaned the port thoroly ,seemed to solve the problem for now.I know what to look for next time,It must clog up ,after so many miles.Thanks to everyone who replied.Al [...]	10
	1996 Chevrolet K1500 Cheyenne 5.0L No Start VIN: 2GCEK19M7T Thank you all so much for taking the time to read my lengthy post. Here are some of the ppl that took the time to read my post and offer their opinions which i really appriciated 1. Tom [...]- 2. jon [...] 3. Jay [...] 4. Neal [...] 5. AandTServices 6. Do...	19
	1997 Chevrolet K2500 Cheyenne 5.7L Misfire VIN: 1GCGK29RXV Thanks for all that offered help. First, on the misfire monitor not on, I have learned that the computer would have to be reflashed to turn on the monitor. Second, it seems that just replacing the distributor gear has been a satisfactory repair. Some people di...	8
	2001 Chevrolet Cavalier LS 2.4L Convertor VIN: 1G1JF52TX1 We have decided that original shudder was due to damaged convertor because of antifreeze problem. The shudder after overhaul has been repaired. The supplied convertor was built with wrong material. This vehicle required woven carbon because of E3 design. Seems...	3
	1997 Chrysler Sebring LX 2.5L power steering pump Much thanks to the 3 responses received for this help request. General consensus was that _mixing_ of fluids may contribute to problems down the line. Hence, one unit of factory fill PSF, mixed with aftermarket PSF, etc. The pump has been replaced with anoth...	3
	1992 Dodge Colt 1.5L No Start Well this one is fixed and has ran for a week and no tow truck(wheww?)Yes everyone was correct in a bad ECU.Thanks to Ken from OR,Ty from CT,Russ from IL,Randy from TN,Fred from WA,Dale from PA and Frank from MO.I did a double check of ECU main feeds and groun...	7
	1994 Dodge Grand Caravan SE 3.3L Headlights, liftgate, door locks, cigarette lighte VIN: 1B4GH44R5R Each rear speaker on this particular vehicle originally had 4 wires (I am asuuming this is for some sort of internal amp.). The person who had installed the new 2 wire speakers, had undoubtedly caused a backfeed back through the system. I learned that this par...	5
	1996 Dodge Neon High Line 2.0L Cuts out, MIL Lamp on VIN: 1B3ES42C0T I have a fix. Although I received only 3 replies, ALL mentioned the crank sensor. 1) Said CKP will cause intermittant problem and suggested I replace CKP. Even though he did not relate this to a PO351 code. 2) Said scope CKP for bad signal with no relation to ... Trouble codes: P0351.	4
	1997 Dodge Caravan 2.4L Hvac controlls VIN: 2B4GP25B6V well i was unable to fix this one if i jump ac compressor ac works fine . when i perform the cool down test ac comes on for 10 seconds and as soon as fans try to come on a/c stops working and light in dash still blink. A few techs went through reset procedure ...	12
	2001 Dodge Dakota Sport 4.7L engine VIN: 1B7HL2ANX1 Hey fellas, sorry for taking so long with this reply. customer returned to dealer to have ecm reflashed as to richard [...] info on tsb 18-003-02, this was not listed in all data? customer said problem still exsists after reflash? thanks for all replys.	7
	1990 Ford Thunderbird Super Coupe 3.8L ABS Motor VIN: 1FAPP64R4L Thanks!!! to Tim who posted to me an archived repair tip & Wynn who led me directly to the problem. Corrosion in the ABS relay behind the LF shock tower. Had an owner stop by & tell me horror stories of corrosion in most every terminal on the '93 he has. Clean...	4
	1993 GMC G2500 Rally 5.7L running lean VIN: 2GTEG25KXP I got the van back last Sat. and started over on it. I re-checked the fuel pressure and it was 12.5 PSI always. the MAP readings were good. I checked the distributor shaft magnets for cracks and found none. The injectors both showed 1.3 ohms rsistance, and the...	12
	1986 Honda Accord LX 2.0L Charging VIN: JHMBA7437G hi techs thanks to everybody that replied.we listened to some of you that advised to install o.e reman alt.although we always used the after market before w/out any problem.guess what...the problem stayed exactly the same.then i took the car for long test driv...	15
	1998 Honda Accord EX 3.0L maintanence light VIN: 1HGCG1652W hi and again you are all very much appreciated for you assistance. The fix for this was as some had guessed. I followed the reset proceedure about 20 plus times and it finally worked. several requests stated just keep trying until it resets. this is crazy it s...	16
	2001 Jeep Grand Cherokee Laredo 4.0L oil pressure VIN: 1J4W48S81C I recieved 10 replies.Most pointed to cam bearings spinning or walking out.One mentioned a possible cracked head leaking onto cam. This veh. went back to the dealer as it only has 37000 mls. sorry about the lame summary instead of a good fix. I hate it when ...	11
	1991 Lincoln Town Car 4.6L Surge, VIN: 1LNCM81W4M this one actually came out real easy and basic, mark from ohio had mentioned crossing the battery cable ends, this is a step that for the most part gets done on every late model ford vehicle that we perform any kind of driveabilty repairs on then a good normal...	3
	1989 Mazda MPV Cargo 3.0L No Start VIN: JM3LV522XK Hi,Most replies pointed to the relucter in the distributer as the problem,I put a used distributer in and to date has been running fine,Most said the success rate is better with oem parts.Thank you...	7
	1991 Mercedes-Benz 300E-24Valve 3.2L Hesitation VIN: 1240312B14 Thank you to all who replied they were most helpful in confirming that the control unit was faulty sending an incorrect signal to the EHA.The on/of ratio of 90% is an incorrect signal to the eha. At KOEO the milli amp reading at EHA should be 20 ma this one ha... Trouble codes: 9 (EHA current illogical), 90%.	6
	1999 Pontiac Grand Prix GTP 3.8L blend door actuators VIN: 1G2WR5213X It turns out this climate control system does have diagnostic codes. There was a code 05 for the drivers temperature control actuator. I disconnected the actuator which stopped the continuous cycling noise. With the actuator disconnected the system does not co...	3

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