Automotive Technicians Technical Discussion and Fixes for Aug 30, 2013

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	Help Request	Answers
	2008 Acura MDX 3.7L Accessories VIN: 2HNYD28458 hello I am working on a 2008 mdx that has had electrical issues. car was towed in after the car was jump started backwards. the main 3 leg fuse has 2 windows in it the top one was blown and the bottom one was not. I put in a new fuse from Acura. I then found m...	View
	2009 Audi A4 Quattro Cabriolet 2.0L Back-up Lights VIN: WAUDF48H49 This car will not broadcast Reverse message to the comfort BUS. (or the signal get killed along the way) The Central Electronics (J519) don't activate reverse lights and Park Assist (J446) don't activate as these 2 have no indication that the shifter is in rev...	View
	2004 Buick Rendezvous CX 3.4L Cuts out VIN: 3G5DB03E54 Vehicle will lack in power when accel,mainly above 2500 rpm, replaced maf sensor ran good for a week,no codes,removed exhaust no better,checked wiring to pcm and ignition module they all look good.when it acts up it just falls on its face almost like plugged f...	View
	1989 Chevrolet C3500 Cheyenne 7.4L Excessive Emissions, Cuts out, MIL Lamp on VIN: 2GCHC39N7K the truck seats at idle and runs lean according to the o2 sensor. check engine light comes on. running at 2500 hundred it runs like its cutting out. the injectors both have a cutting out reaction. (pretty sure thats a effect not a cause. Trouble codes: 44 (oxygen sensor lean), 45 (oxygen sensor rich)	View
	1995 Chevrolet K2500 Cheyenne 7.4L Rear drum brakes VIN: 1GCGK24N5S This truck came in with complaint that rear brakes are not working, lifted on hoist and confirmed, engine at idle will still spin rear brakes, can push pedal as hard as possible and still do not stop, can tell that is trying to stop wheels but is like proporti...	View
	1995 Chevrolet Corvette 5.7L oil leak VIN: 1G1YY22P1S This is one for the Corvette guru's, car came for oil leaks (lots), we replace valve cover gaskets and intake gaskets, all good there now but still leaks from front. We found the water pump drive seal leaking, replaced it 2 times but still leaks, removed timin...	View
	1997 Chevrolet K2500 Cheyenne 5.7L Fuel VIN: 1GCGK24R2V Hey guys, this is a fleet truck it has had multiple fuel pumps and relays. We had to re-wire relay outside of fuse box because the connectors were kinda burnt up. This time the truck wouldn't start I wiggled the wires for the relay and when truck started the w...	View
	2009 Chevrolet HHR LT 2.2L Bcm VIN: 3GNCA23B49 I have a vehicle that I have purchased a BCM to repair AC inop part was purchased thru GM Parts dept but the service dept is telling me that it doesnt need to be programmed thru the dealership rather just activated through a tech 2 or snap on scanner. to this ...	View
	2010 Chevrolet Silverado 2500 HD LT 6.0L hvac controler VIN: 1GC4KXBG6A Ac works and then with no warning goes to full hot, you can move the hvac control knobs, the temp or mode knob and it will start back to cold air, I have recalibrated the mode doors with tech 2 and found history codes Bo423 02 and b3779 02. I cleared the histo...	View
	2003 Dodge Ram 2500 8.0L engine VIN: 3D7KU28W63 truck came in with a no start/crank condition. Customer replaced the starter still not cranking. We got it and I put a breaker bar on the crank bolt and it did not move. pulled all the spark plugs,no hydro-lock. Oil looks ok, drained to see if any metal shavin...	View
	2006 Dodge Caravan SE 3.3L air conditioning VIN: 1D4GP25R76 Happy labor day. I hope someone has seen this. This could be simple but i can't figure this out. This caravan came in with no compressor operation. Come to find out fuse 18 which powers the compressor relay is blown. Has a 20amp fuse in it. It's supposed to be...	View
	2007 Dodge Nitro SXT 3.7L Compressor, VIN: 1D8GT28K07 This nitro is turning my hair gray faster than my kids. The first ignition cycle of the day the compressor will not turn on, It will attempt to come on 3 times then nothing. While this is happening the power comes and goes then disappears entirely. I have mu...	View
	1996 Ford Ranger Splash 3.0L Poor Idle Quality, Cuts out, Misfire, Poor Fuel Economy VIN: 1FTCR14U2T Hi everyone As you can see I have a customers nightmare brought this truck to me so I scaned with modis came up with 1101 code replaced maf and air filter redid wire at maf sensor.Checked fuel trim ok o2 sensors seem to be ok checked fuel pressure ok So the pr... Trouble codes: 1101 (Mass air flow sensor)	View
	1996 Ford Ranger Splash 3.0L Poor Idle Quality, Cuts out, Misfire, Poor Fuel Economy VIN: 1FTCR14U2T Hi everyone As you can see I have a customers nightmare brought this truck to me so I scaned with modis came up with 1101 code replaced maf and air filter redid wire at maf sensor.Checked fuel trim ok o2 sensors seem to be ok checked fuel pressure ok So the pr... Trouble codes: 1101 (Mass air flow sensor)	View
	2003 Ford Ranger Edge 3.0L compressor clutch VIN: 1FTYR14V03 a/c compressor clutch relay new pcm power relay swapped out tested bot high and low pressure switches and jumped them both still with ac on and only in gear it seems the clutch cycles and It is full of Freon and the ECM ground driver that controls the compress...	View
	2003 Ford E-250 4.6L Compressor VIN: 1FTNS24W93 Customer complain no ac. Road tested ice cold. Brought back a 2nd time no ac. Road tested 45 minutes ice cold. Retuned 3rd time no ac said to replace compressor. Tested 1st, 12v and a ground to compressor, would not engage. Replace compressor with clutch, accu...	View
	2008 Ford Fusion SEL 2.3L No Start, Cuts out, Stall, only runs off idle VIN: 3FAHP08Z88 We pulled this engine, sent it out to a machine shop for long block repair.Engine was returned to us with the timing cover installed along with the crank pully (neither of which was disturbed by us), the slots in the cams appeared to be aligned correctly altho...	View
	2009 Ford Fusion SEL 2.3L Steering VIN: 3FAHP08Z89 This Fusion came in on tow truck, customer stated heard noise and steering went hard to turn. The reservoir cap is missing and belt looked like it jumped and shredded 2 rows of belt off. On the rack with wheels off ground the engine running and pump turning th...	View
	2004 GMC Sierra 2500 SLE 6.0L Misfire VIN: 1GTHK23U04 Came in with a P0300. checked it with the tech2 and ended up changing the MAF(gm part) changed spark plugs and wire set ac/delco. Still had a P0300 with all the misfires on the left side of the motor. Changed the wire harness to the coil pack on the left side....	View
	2005 GMC Sierra 1500 SLE 5.3L Keyless Entr VIN: 2GTEC19T15 Good afternoon everyone. I would greatly appreciate any help or info with this problem. Truck belongs to a regular customer, one day he noticed his fob didn’t work. He changed batteries, tired his spare key fob. I tried re programming his old key fobs, I als...	View
	1979 Jaguar XJ12 L 5.3L No Start VIN: J8VLV49310 Ok...if you want the whole story it is very long but I will give it to you if you ask. The main issue when I came into this problem was start and die losing spark. Found the air injection valve broken and wiring meltdown causing a failed ballast. Repaired wire...	View
	2001 Jaguar Vanden Plas 4.0L Ignition VIN: SAJDA24C11 '01 XJ8 starts great when cold, no codes. When stopping car after warm, no start. Cranks fine, have spark, have injector pulse, have fuel pressure. Any ideas?	View
	2002 Jaguar XJR 4.0L No Start, MIL Lamp on VIN: SAJDA15B02 hello xjr jag techs...jag came in on a hook ,blew oil cooler hose,spun rods so we replaced engine with 40k motor used original harness , turned key on for 2 mins,,then started it..fired right up...waited for cooling system to get air out...filled as alldata st... Trouble codes: P1646, P1647, P0740, P0753, P0758, P0763	View
	2003 Mercedes-Benz E320 3.2L auxiliary battery VIN: WDBUF65J33 Greetings, Hoping for some help from the Mercedes techs out there. We have this vehicle in the shop and it has the red battery light on the dash, again. Checked normal vehicle battery in trunk and it is good plus alternator is charging, however, the auxiliary ...	View
	2000 Mercury Sable LS Premium 3.0L 1-2 shift VIN: 1MEFM55S8Y sent trans out to get rebuilt put in first drive banged when hit 2nd had noise in converter pulled back out sent back got it back in with another converter now slips just from 1st-to 2nd check pressures by book ok but drops when starts slipping till goes into ...	View
	2005 Mitsubishi Outlander LS 2.4L oil leak VIN: JA4LZ31F95 Hi, After replacement of timing belt , noticed oil leak from inside timing belt over. removed cover , noted oil was leaking from top mounting bolt of timing belt tensioner. All fastener was torque to spec. Thank you, Wing	View
	2006 Nissan Titan XE 5.6L No Start VIN: 1N6BA06B46 this vehicle had started stalling on the customer a few days ago then shut off and will not start,checking scan data and found the rpm wasn't changing when cranking. felt it was the crank sensor. customer wanted to check the other keys first as i mentioned the...	View
	2006 Nissan Murano SL 3.5L Hesitation, MIL Lamp on VIN: JN8AZ08W66 Nissan CVT Trans issue. Car came in with a complaint of a Check Engine Light on the dash. Code P0744 stored in memory. Customer states that a "friend" performed a Trans Service and then immediately after the CK Eng light came on the there was a new symptom of ... Trouble codes: P0744 (Torque Converter Lock Up Error)	View
	1996 Pontiac Grand Prix GTP 3.4L Stall VIN: 1G2WJ12X1T VEHICLE DOES NOT STALL WHEN COLD ONLY AFTER WARM UP OR AT TEST DRIVE, while test driving stalls at idle at every stop but if idle is held up to 1500 rpm does not stall, vehicle start back straight away on neutral or park.Please any suggestion really appreciate...	View
	2003 Saab 9-3 Vector 2.0L MIL Lamp on VIN: YS3FF46YX3 Seen a million times. Air pump or check valve. This one was different. Blocked passages in the manifold and or head behind the exhaust valves. Before my tech pulled apart, I wanted to try and clean it out. Let car sit for a week and dumped some Motorvac concen... Trouble codes: P0411 (Secondary Air Injection Insufficient flow)	View
	2004 Saab 9-5 Aero 2.3L Poor Idle Quality, MIL Lamp on, Abs, esp, brake VIN: YS3EH59G54 The car originally came in on 9/19/12 with codes related to throttle body failure and limp mode triggered. Replaced the throttle body. Car came back two weeks later in limp mode again. Found that the ECM had not been updated and performed the update. The car c... Trouble codes: P1531 (Pedal position 12 out of range), P1231 (Throttle position 12 out of range), C1387 (Right rear wheel speed sensor no signal), C1925 (No CAN communication with ECM/TCM)	View
	1998 Subaru Legacy GT 2.5L Cooling fans VIN: 4S3BD6751W Car came into the shop with cooling fans surging on and off and a fast blinking check engine lamp. I quickly figured out it was in some sort of test mode. Found jumper connection under LH dash area (green single wire connector) and unplugged it. Now I have a s...	View
	1986 Toyota Pickup SR5 2.4L Surge, Cuts out, Misfire, Poor Fuel Economy VIN: JT4RN67S2G * Looking for a 22RE tech * Engine misfires when free reving at about 2000-2500 rpms, and the ignition timing is jumping around a lot (I would guess from 10' after to 60' before TDC, It's hard to tell exactly but about 4" on the balancer) * When driving the tr...	View
	1995 Toyota Corolla DX 1.8L ignition VIN: JT2AE09B4S we have this corolla it has no spark, no injector pulse, we have replaced,, distibutor, igniter, crank sensor, ecu, all fuses are good, all pwrs and grounds to ecu are good ground on intake manifold is good, have checked pulse signals from sensors to ecu,using...	View
	2003 Toyota Prius 1.5L inverter cooling pump VIN: JT2BK18U13 Hey all, Well, this 03 Prius came in after customer complained that that engine died on road and all major warning lites came on. Engine did restart and drive home and to shop where I got a code p3130. Inverter waterpump. did not find any help in archives but ...	View
	2001 Volkswagen Passat GLX 2.8L MIL Lamp on VIN: WVWJH63B01 Hello VW genius', This 2.8 v6 runs fine but continually puts out code P1522 for cam sensor fault on Bank#2 (driver's side). Checked the limited info on this code so scoped cam sensor input right at computer (clear, square waveform). Swapped cam sensors from b... Trouble codes: P1522	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1996 Audi A6 2.8L oil pressue light VIN: WAUFA84A8T so light is now off, thanks for the many replies dropped the pan and it was clean enough to eat off of.. grounding the sensor wire keeps the light off, got a Audi OE sensor vs the 2 worldpac sensors we tried and the light has been off.. doesn't make sense to m...	13
	2003 BMW M3 3.2L MIL Lamp on VIN: WBSBR93433 Sorry for the late response I was hoping the car would have returned by now. Customer took vehicle and light has not come back on (almost 3 weeks ). I suspect as most of you said that the sensor is dying,we will graph it if problem returns. I also prepped her ... Trouble codes: 214 (Bank one pre cat o2 slow response).	10
	2006 BMW 525xi 3.0L Misfire VIN: WBANF33556 This car has destroyed my faith in my local dealers. David was our winner. After not finding the issue. My gut said maf sensor based on miss under accelerate like it was lean. No test parameters available. Instead of throwing 250.00 at it, and the fact this wa...	14
	2004 Buick LeSabre Limited 3.8L electric windows VIN: 1G4HR54K94 My sincere thanks for the help and advise on this Buick. The "fix" was the left door module. Not sure it's a good clue, but when we sacnned it, the door mudule looked like it was stuck in the "down mode". We did test the power circuit from module to rear fuse ...	10
	1996 Chevrolet Corvette 5.7L abs VIN: 1G1YY22P1T While this vehicle is not fixed I do believe the module is still the cure. The reason behind this thought is the fact that each module stored a different code than the original faulty module. To make this problem worse the only modules available are used and u...	6
	2007 Chrysler Town & Country Touring 3.8L hvac VIN: 2A4GP54L47 I replaced the expansion valve again, recharged this van again and everything works the way it should, so once again just because its new does not mean good. thanks for all suggestions I will reply to each one. Enjoy this Labor day week end.	12
	1989 Ford F-150 Custom 5.0L MIL Lamp on VIN: 1FTDF15N7K Sorry about the long post. Thanks for all your replies! The fix was putting fresh gas in the tank! Pumped out the old gas, put fresh in. Customer drove the truck for two weeks. 30 miles plus a day, he said. No check engine light or codes in the system at this ... Trouble codes: 41 (O2 Not Swtiching Running lean).	21
	1996 Ford F-350 XL 7.5L poor cluctch pedal/shifting VIN: 2FDKF37G1T Installed an .050 shim between the crank and the flywheel. Operates like it should now. It seems that since there is no adjustment in the hydraulics that changes to flywheel thickness is critical to operation. I knew the problem was not hydraulics relate...	18
	2003 Ford F-550 Super Duty XL 6.0L clutch line VIN: 1FDAF57P13 I waited to post this to make sure I had actually hopefully put this to rest. My gut hunch (we all know never to doubt our guts) Which (Thomas, bill and, francisco were right on) was to pull the turbo and just start checking everything. I pulled the turbo and ...	12
	2005 GMC Sierra 2500 HD SLE 8.1L timing chain VIN: 1GTHK23G95 as a lot of you replied this is normal for the 8100 engines. i degreed the cam and the 1/4" slack equals 1 degree of cam movement/2 degrees of crank movement. i have pictures posted on the tech discussion forum of the measured slack and this seems to be normal...	7
	2000 Honda Civic DX 1.6L Booster VIN: 2HGEJ6619Y Thanks to all, I really appreciated your input and the effort to make good responses. Ordered an OEM booster valve hose assembly ,installed and gave back to customer to drive. Customer reported back today, that car is fixed. Thx for your timely response . Fra...	19
	2006 Hummer H3 3.5L No Start VIN: 5GTDN13696 I will call this vehicle fixed. With recommendation from Chris [...] I replaced the ign. lock housing. I also replaced the ignition lock solenoid becuse it was extremely hot while the ign. key was on. The parts were AC Delco#D1462G and [...]. I think t...	7
	2002 Jaguar S-Type 4.0L Battery VIN: SAJDA01P12 Thanks for all the input on this one. We are still waiting for the car to come back. Will definitely be checking for water in the trunk and possible module related issue. Thank for the input Andrew	4
	2001 Mercedes-Benz S500 Guard 5.0L Misfire, MIL Lamp on VIN: WDBNG75J91 Well, the customer has not returned even though we have called several times. We believe that the issue is with the sensor adaptation that some of you mentioned. We don't recall doing that procedure at any point in time and were actually thinking it was too e... Trouble codes: P0301, P0306, P0303, P0304, P0300.	11
	1999 Mercury Cougar V6 2.5L alternator VIN: 1ZWFT6161X I thought I sent a reply must have not went through customer decided not to fix to much money	11
	2003 Mitsubishi Diamante LS 3.5L MIL Lamp on VIN: 6MMAP67P43 Thanks to all of the replies! Leared alot about this egr system. End up being a retrected little orifice inside the vacuum line. Cleaned up, and we ended up replacing the brown vacuum emission valve. Wouldn't flow vacuum threw it very well. Vehicle been gone f... Trouble codes: P0401 (Insufficient EGR Flow).	10
	1990 Oldsmobile 98 Regency 3.8L Stall VIN: 1G3CX54C8L well thanks million everyone ecm was problem.let it idle an hour and drive so far so good. thanks again	26
	2000 Saturn SL2 1.9L SIR, BCM module VIN: 1G8ZK5275Y Saturn 1, Mike 0. The agony of defeat. I tried disconnecting the ipc and sir; no change. There is no set up in Tech 2 for air bag/bcm acknowledgement. My mistakes? Well I tried to program without obtaining a VCI; but there are no instructions indicating that a...	9
	2002 Volkswagen Beetle GL 1.8L No Start VIN: 3VWCD21C12 Thanks for the help, The car is fix. The instrument cluster/immobilizer was bad. once I plugged in the new cluster I could see that the key was now being read, Immobilizer is responding in the MVB fields. I do have a VAS 6150B but I borrowed my friends a... Trouble codes: 01128 (Immobilizer pick up coil d20), 01176 (Key), 17978 (Engine start block due to immobilizer).	7
	2002 Volvo S40 1.9L Air Bag VIN: YV1VS29582 Thank you very much to all who replied. The answer is 1.8 to 2.5 ohms. I made a 2.4 ohm jumper out of an 1157 bulb and a universal socket. I plugged the junper into the body harness and cleared the code. The code did not come back with the jumper in place. Rep...	5

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