Automotive Technicians Technical Discussion and Fixes for May 28, 2004

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	Help Request	Answers
	1994 BMW 325i 2.5L wipers, interior light, window VIN: WBABJ6328R Hello BMW tech's. I just bought this car and it has a few things wrong, most of them I guess may be controlled by a computer. The drivers door, when you open it the window does not go down by itself. I noticed the pass door as soon as you open the door the win...	View
	1995 BMW 320i 2.0L Excessive Emissions VIN: WBACB1329S this car sat for 1 year prior to august 2002. at that time the hc was very close but just passed. 2 years later the hc readings have risen considerable. driven daily. possible some oil burning.	View
	1997 BMW 328i 2.8L MIL Lamp on VIN: WBACD4326V Car has a CEL on in which I retrieve 2 codes. One is a P1250 and the other is a P0455. The other issue is a information display regarding coolant level. Verified that the coolant level is normal, therefore, I have a 2 part question. (1) I cannot locate a P1250... Trouble codes: P1250 (unknown), P0455 (gross evap leak)	View
	1997 Buick Century Limited 3.1L windshield wipers VIN: 2G4WY52M8V help!!! customer came in with wipers in the up position. they will wait in their normal position while in delay but they park straight up. no work has been recently done. i believe that the multi function switch maybe responsible but i am unable to prove so an...	View
	1983 Chevrolet C10 Suburban Custom 6.2L engine VIN: 1G8EC16C4D Replaced blown head gaskets and cracked heads with customer supplied reman heads. Vehicle is hard to start and runs rich all temps with rough idle. All injectors have been checked for flow and lines bled numerous times.Injection pump was not moved during proce...	View
	1989 Chevrolet Camaro Iroc-Z 5.0L ac VIN: 1G1FP21E1K Car had been sitting for one year. Check of dye in AC system showed leaks at compressor and evaporator. Replace compressor, evaporator, accumulator and orfice tube, all AC Delco. Retro fitted to 134, dropped R12 charge of 36oz down 20% to 28oz. Used OEM white ...	View
	1999 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNCS13W2X This blazer came in with these codes the first time and I'm thinking that the fuse is probably blown.It's not.I.ve checked powers and ground to al three heaters as well as voltage drops.Also observed three times on the techview all 3 o2s lighting off within th... Trouble codes: 135 (b1s1 O2 heater), 155 (b2s1 O2 heater), 147 (b1s3 O2 heater)	View
	1993 Chrysler LeBaron 3.0L No Start VIN: 1C3XU453XP This car came in for an ittermittent no start. There were no codes in the computer. Found the resistance on primary side of coil out of range. Spark, when I could get it, was erratic. Replaced the coil. car ran fine for about a week. This time the computer h... Trouble codes: 11 (No signal from Ckp Crankshaft Position Sensor)	View
	1996 Chrysler Sebring JX 2.4L brake light bulb VIN: 3C3EL45X7T I have a 96 sebring convertible with a $129.00 brake light bulb mounted on the top of the trunk. Before I remove the leds inside of the light, my question is there a interchangeable brake light bulb that is available and where could I purchase it for a couple ...	View
	1999 Chrysler Concorde LXi 3.2L battery VIN: 2C3HD46J2X vehicle came back three days latter for same problem (battery going dead. rechecked charging system (ok)again no draw. have had the car over two weeks with meter and doing multipe electrical things, such as setting the alrm and so forth. now we did duplicate p...	View
	1994 Dodge B250 5.2L Hesitation, Cuts out VIN: 2B6HB21Y5R Customer complaint: Intermittent loss of power/poor acceleration. This problem began a year ago. We first see the van when cust asks us to check for a bogging on accel (88,706 on odometer). We find a plugged fuel filter, replace it, and road test to verify an...	View
	1997 Dodge Ram 2500 5.9L ABS module ? VIN: 3B7KF23ZXV Fellow techs, this well maintained, lightly used 1997 Dodge RAM 2500 3/4 T 4X A/T 4WAL is experiencing occasional wheel lockup when almost stopped. I don't have an OBD II update or ABS cartridge for my OTC scanner. Pads,shoes etc. all look good. Help! Thank...	View
	1997 Dodge Grand Caravan ES 3.8L No Start VIN: 1B4GP54LXV Hi All, This is my first post here and I have read all the guidelines. If I miss something it is not intentional. Here's the problem. This van intermittently no starts, sometimes it starts and dies in a couple seconds like maybe the security system is playing ... Trouble codes: 1698 (No CCD messages from TCM), 1695 (No CCD messages from BCM)	View
	1998 Dodge Ram 3500 5.9L No Start, no restart warm VIN: 1B7MC3363W This truck starts and runs fine at first start up , but fails to restart once engine is shut down until truck has set for a few hours. even if engine is started and shut immediately it wont start.I ran diag for p1698 all wiring checks out ok chart leads to rep... Trouble codes: 1698 (no comm. ecm to fuelpump control modual), 1693 (code set in companion modual)	View
	1999 Dodge Ram 2500 5.9L Right Front Wheel VIN: 1B7KF2366X Hello all! This one has me at wit's end. The customer (a good friend) has been complaining about a brake pull to the right ever since a local shop replaced his pads about a year ago. I have since replaced the calipers and hoses, The Dodge dealer has replaced t...	View
	2000 Dodge Neon High Line 2.0L Rad cooling fan VIN: 1B3ES46C6D The radiator cooling fan won't come on with A/C or when engine heats up. I am 99% sure the problem is with the solid state fan controller. I have checked the fan's operation by supplying hot and ground to the proper wire and it runs fine. MOD says that the co...	View
	2001 Dodge Ram 2500 Van 5.2L No Start, Stall VIN: 2B4JB25Y91 This van runs great, most of the time. BUT every now and then it stalls out and will/ will not restart. when it does not restart you can hear the asd and fuel pump relays clicking, both relays have good power BUT the control signal is going CRAZY. It goes fro...	View
	1989 Ford F-150 Custom 4.9L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 2FTEF14Y5K Hi group,this ford truck idles a little roughly at 1000 rpm's.when propane is introduced this helps smooth out the idle, which tells of a lean condition. When the throttle is applied,it starts to break up at 2,600 rpm's and won't go over 3,000 rpm's even if yo...	View
	1996 Ford F-250 Special 7.3L abs electrical VIN: 1FTHX25F6V hi group this thing has rear anti lock, when started up and driven approx 100 feet abs light comes on, short the orange and black wire will not flash codes, checked all power and grounds to module ok, speed sensor signal ok, if you wiggle turn signal switch th...	View
	1997 Ford Taurus GL 3.0L radio VIN: 1FALP52U0V Hi, this vehicle belongs to a good customer's father. It came to me two weeks ago for intermittant radio inop and increased steering effort. I checked the iATN archives and found out about the MLPS. I put a new one in, and it didn't fix the problem. I put in a...	View
	1999 Ford Crown Victoria 4.6L master cyl VIN: 2FAEP71W8X whats next	View
	1988 GMC C2500 Sierra 5.7L Poor Idle Quality, Surge, Cuts out, LACKS POWER VIN: 2DTFC29K9J customer complains of intermittent sudden lack of power. cannot exceed 30 kmh. i have not been able to duplicate problem. also complians of stumble/ misfire. problem occurs mostly in gear just off idle, but can also occur at higher loads. tested all basics wit...	View
	1992 Isuzu Trooper S 3.2L Poor Idle Quality, Surge VIN: JACDH58W4N This truck surges at idle when warmed up (about 5 minutes or so). All sensor reading on the scan tool are normal except the TIME counter is irratic. On other vehicles the timer starts at 0:00 and counts up when you start the car. This truck is at like 300:00 a...	View
	1994 Isuzu Rodeo LS 3.2L Stall VIN: 4S2CY58V4P Hello good friends at iATN, another hairpuller with my best customer. Coolant sensor readings jumps from 1.6 volts at warm temp to 3.7 V. when hot. readings are descending normaly from cold, jumps , and keep descending. Does this with 3 ECU´s same trouble. the...	View
	1995 Isuzu Rodeo LS 3.2L no-start VIN: 4S2CK58V7S car came in with a timing belt that shredded. replaced timing and tensioner. started and ran fine for the day, washed the engine compartment. next morning, no start condition. sprayed carb cleaner, started right up. 1 hour later, no start period. replaced: plu... Trouble codes: 033 (map sensor)	View
	2000 Lexus RX300 3.0L MIL Lamp on VIN: JT6HF10U1Y HI, This car came in 3 weeks ago with the MIL on. I found a PO171 code. The fuel trim looked okay, so I cleared the code. The light came back on about 1 week later. I can't read upstream O2 voltage. The long and short term fuel trim look okay. They are both ve... Trouble codes: P0171	View
	1981 Mercedes-Benz 380SL 3.8L No Start, Cuts out VIN: WDBBA45A7B This vehicle came in with a stall, rich running complaint. Black smoke was coming out of the tail pipe and it was barely running. Looked through some IATN e-mails and found fuel distributors going bad on these, making them run rich. We installed and new one an...	View
	2001 Mercedes-Benz C240 2.6L turn lights, wipers, fuel indicator VIN: WDBRF35W51 Client claims several systems stoped working after changing battery. For me there is a chance that a "wrong" jump starting could be the cause for these problems. What it is not working: turn lights, reverse lights, wipers, fuel level indicator... I hope some...	View
	2003 Nissan 350Z 3.5L module VIN: Z33-004100 Hello fellow tech. I have a 2003 350zx the air bag light keeps flashing I did a scan and I got dtc B1049 wich is driver air bag module open but I cannot get any info on where to check.thanks for any help.Billy.	View
	1991 Plymouth Grand Voyager LE 3.3L No Start VIN: 1P4GP54R2M This one has me scratching my head. Vehicle towed in, no start. Check computer, ASD. Check fuel pressure and found none. Checked fuel filter and replaced, plugged. Vehicle started and fuel pressure running at 40PSI. Attempt road test and vehicle dies. Found ga...	View
	1995 Pontiac Bonneville SE 3.8L Poor Idle Quality, Stall, MIL Lamp on, No excelleration VIN: 1G2HZ52K0S Hi all of you GM Techs. I have a 1995 Pontiac Bonniville SSE in the shop with a Poor run/No start problem. Costomer states Initially it stumbled a couple of times and then started to lack power on acceleration. Parked car for the evening. The next day, drove c... Trouble codes: 171 (Lean condition), 131 (O2 sensor lean)	View
	1997 Pontiac Sunfire GT 2.4L Misfire VIN: 1G2JD12T4V vehicle came in with amisfre ,scanned system ,engine misfire was the only code present .entered data stream cylinder 1 and 2 misfiring ,checked spark at all 4 cylindersall cylinders have spark .checked resistance on all injectors ,all within specs , checked wi...	View
	2000 Pontiac Grand Am SE 3.4L ABS Light VIN: 1G2NF12F6Y ABS light comes on, when the car came in shop light was out. No current codes, history codes C1236 low voltage, C1257 left front ABS motor shorted, C1262 right front ABS motor shorted, C1265 Rear ABS motor shorted, C1273 VES open or shorted, C1286 low voltage,...	View
	1972 Porsche 911E 2.4L Poor Idle Quality, Hesitation VIN: 9112101846 Customer came in from another shop with a loss of power statement. Performed a major service, replaced plug wires,set dwell and timing. Car will accelerate but feels very sluggish. I get about 30-32 degrees total advance. When I road tested the car it feels ...	View
	2001 Saab 9-3 2.0L No Start VIN: YS3DD552Y2 Towed in, intermittent no start. Scan showed no communication with PCM, complained that PCM was not on bus. This system has 2 buses that talk to each other, I-bus (low speed for instruments and central electronics) and P-bus (high speed for powertrain and tra...	View
	1995 Suzuki Sidekick JLX 1.6L fuse #13 VIN: JS3TD03VS4 customer brought car back the next day after we replaced the headlamp switch with the same problem fuse # 13 BLOWING anytime you turn the tail lights or head lights on. anyone seen a problem like this before?	View
	2000 Toyota Tundra SR5 4.7L blinking light VIN: 5TBBT4411Y I have this toy and the 4wd is inop, The question I have is there another way to diag. the system, then using the wiring diagram?? I have aldata and there is little to no information. The transfer case motor will work but the front diff. isnt working and the 2...	View
	1996 Volkswagen Cabrio 2.0L shifting VIN: 3VWBA81E2T i scanned for codes and none were found.(took to a vw shop) the problem i am having with this vehicle is that is has a hard shift, early down shift , and sometimes it is fine. i read some TSBS on this and i came up with the trans temp sensor in the printed cir...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1991 Alfa Romeo 164 L 3.0L brake lights VIN: ZAREA33L3M Well I found the Brake Relay by using a google search which showed a text document describing A/C service where you would disconnect Brake lite relay and all of that stuff is located directly in front of windshield near wiper motor under a flimsy plastic panel...	None
	1998 Cadillac DeVille 4.6L abs light traction control light VIN: 1G6KD54YXW We replaced the right front hub assemly. The wheel speed sensor was the problem, could not buy seperatly. Thanks to all whom replied!	5
	1987 Chevrolet R10 Custom Deluxe 5.0L Stall VIN: 1GCDR14H2H Thank's to all the replies. Those who said to check the pickup coil you nailed it. After 3 distributor assemblys from local store the truck runs fine. All the help was greatley appriciated.	25
	1987 Chevrolet V20 Scottsdale 5.7L Stall VIN: 1GTGV24K2H Hi Guys, I want to thank everyone for there help. I had several people point to the pick up coil in the distrubutor. Well this ended up deing the problem. The after market pick coil didn't produce enough voltage at low engine speeds to trigure the icm. We repl...	14
	1996 Chevrolet S10 LS 4.3L No Start VIN: 1GCCS19X7T Thanks, Mike, It was the cap and rotor causing the problem, which explaines why it would run with #2 and #4 wires off of plugs,#2 had no spark yet #4 did.I installed cap, rotor and truck started good. Thanks for everyone' help.	6
	2000 Chevrolet Monte Carlo LS 3.4L No Start, Stall VIN: 2G1WW12E9Y i tried many things to fix this problem. it seem like ignition switch fixed the problem. after i replaced it, it wouldn't stall anymore. but it was intermittent, so it may be just not acting up. Trouble codes: P1626, U1016.	4
	1996 Chrysler Town & Country LXi 3.8L No Start VIN: 1C4GP64L6T Thanks for every ones help ,Replaced PCM and coil pack ,van runs now.The PCM would do every thing but fire the coil pack .	7
	1983 Ford E-250 Econoline Club Wagon Custom 4.9L Valve Adjustment VIN: 1FBHE21YXD I didnt notice the shoulder on the studs; and the fact that these look like Chevy rockers is what threw me for a loop. Anyway I bled down the lifters and torqued each nut to 25 ft. lbs. and it runs perfect. I guess Ive put together so many new engines lately ;...	13
	1987 Ford F-250 Custom 7.5L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FTHX25L7H After replacing and adjusting three remanufactured carburetors from Holley, the symptoms still persisted. We concluded that the carburetors were not the cause of this problem. Tested engine vacuum while engine was cold and hot. 20' of vacuum was present at i...	22
	1992 Ford E-350 Econoline XL 7.3L Rear Adjusters VIN: 1FBHE31M9N This Van is fixed, Tom from Arizona hit it on the head, I had ordered a new set of shoes from Ford and in fact the shoes on the van had holes that were not drilled correctly. The van has been operating perfectly since the change. I recieved alot of useful info...	17
	1992 Ford F-250 Custom 5.0L Poor Idle Quality, Cuts out, Stall VIN: 1FTEF25N6N im not sure if this one is fixed but i removed the pcm and cleaned all connections and reinstalled it. i gave it back to the customer and havent haeard anymore??? Trouble codes: 411 (322 -), 322 (testing and results).	5
	1993 Ford F-250 XL 7.3L No Start, Stall VIN: 1FTHF25M2P Hello everyone, sorry it took a while to get back on this one. I checked wireing at glowplug module and followed wireing, all wireng was not repairable, I had to rsplase wire harness and glow plug module, it took a while to find good used wire harness. Truck r...	4
	1995 Ford E350 7.5L distributor VIN: 3FCMF53GCR the fix for this vehicle turned out to be a stock oil pump, an oem camshaft and an oem distributor. the aftermarket camshaft & distributors were slightly different than the oem equiptment. we thank everyone for their help and advice. the rebuilt engine had a h...	9
	1998 Ford F-150 Lariat 4.6L wipers VIN: 1FTZX18W5W The very first post I got hit the nail on the head. The fix was replacing 4x4 switch on the transfer case as per TSB by Ford on water contamination. Turns out the GEM samples the ins and outs of this switch, Thanks to those who responded.	6
	1998 Ford Taurus LX 3.0L convertor VIN: 1FAFP52UTN I want to thank all of you who took the time to help me and my friend with this problem, all of the sugestions where very good and very apreciated. It seems that this problem can be caused by many diferent things Well friends. THe car was taken by the custom...	4
	1981 Jeep Wagoneer 5.9L brake system VIN: 1JCNE17D2B I replace the calipers and pads and the problem is gone. I'm not sure if the calipers were wrong or maybe air in the sytem but the problem is gone. Thanks to all that replied	7
	1990 Jeep Cherokee 4.0L engine VIN: 1C4867BC5L ok, sorry it took so long to reply, been doing lots of ac work. it's been in the low 90's here in central fl all week and everybody wants cold air if you know what i mean. ok we replaced the crank sensor and connector and have driven for about 60 miles, everyt...	15
	1998 Lincoln Mark VIII 4.6L air suspension VIN: 1LFNM92V3W sorry took so long. this is an employee car here and it just got put on the back burner. we got ok to replace pump and lf air spring. finally put the parts on yesterday. pump runs less and is very quiet now. all we have left to do is an alignment. rec'd su...	8
	1998 Lincoln Mark VIII 4.6L MIL Lamp on hi group sorry for the long delay, found vehicle would intermintently would loose signal to vmv valve, found a bad wire in loom going into fender area to vmv valve took a while to find because would only do it once in a week repaired wireing all is fine thanks... Trouble codes: P0443.	5
	2000 Lincoln LS 3.9L Misfire VIN: 1LNHM87A7Y i put all new coils in vehicle and switched out 1 coil at a time to make sure which coils were bad i hate that i had to do it that way but had no choice because lack of equipment issues. i will purchase a ngs tester soon. thanks for all your help it was greatl...	5
	1993 Mercedes-Benz 300SD 3.4L Injection pump VIN: WDBGB34E8P I ONLY RECEIVED ONE REPLY ON THIS ONE. It seems that the only way to properly time the injection pump is to take to someone with the proper equipment to have it set.	1
	1996 Mitsubishi 3000GT SL 3.0L MIL Lamp on, P1400 VIN: JA3AM54J7T Sorry to say, customer has not yet called back to have us order parts- Happy to say, though, that the 3 replies i recieved were UNANIMOUS!!! Frank replied that if sealing is OK, sensor is probably bad- this sensor is used only to test egr flow- Wayne, Mitsu te... Trouble codes: P1400.	3
	1999 Mitsubishi Eclipse Spyder GS 2.4L No Start VIN: 4A3AX35G2X sorry for delay in closing. checked crank sensor wave form and found erratic. removed timing covers and then found balance belt broken and interfering with crank sensor and also damaged reluctor ring. thanks for everyones help. much appreciated.	2
	1999 Nissan Quest GLE 3.3L Left Caliper VIN: 4N2XN11T8X Well thanks to all that responded Kenneth was right on the money I replaced the wheel cylinders and drove it about 30 miles and everything was alright. I promise I won't forget that one. Thanks, David Caretr	5
	1992 Oldsmobile Cutlass Cruiser S 3.3L Cuts out VIN: 1G3AL54N2N First the fix. Apperantly it was the crank sensor. Now the replies and then some comments. Unplug fan, clean module plate for good ground, test 12v and ground at module, wiggle wires, crank sensor, knock sensor, injectors, heat parts with hair dryer, ignition ...	24
	1993 Saturn SL2 1.9L Misfire VIN: 1G8ZK5577P Several of our replies suggested swapping the injectors to see if the miss followed. While this wasn't an Ideal option that is what we did, and the miss followed the suspect injectors. Replacing the injectors has ended the intermintant dead miss. I am saving t...	16
	1995 Subaru Legacy 2.2L Stall VIN: 4S3BK638S7 hi guys.this subaru was tuff. customer took vehicled didnt return for further diagnosis, the two replies told me to check the ect closly .the other one mention that the cam and crank sensor are common and are sold as a kit , thanks for the info.	2
	2000 Volkswagen Passat GLS 1.8L Handling VIN: WVWMA23B6Y Reccomendations: Check rack mounting - ok. Check arm installation - ok. Tire speed rating - not addressed by us. We rechecked the alignment and the car still feels a bit unstable. We have been watching all of the other Jettas that come in and have noted that t...	6

(Also Available: All, Asian, Chrysler, European, Ford, GM.)