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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 23, 2015
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for All Makes and Models
Help Request Answers
2002 BMW 745i 4.4L engine replacment VIN: WBAGL63432
I am about to r&r engine on this jewel. My question is about the coolant pipe.Would I be better to replace it with the OE style pipe since the engine is out or use the expanding pipe,which I have used before.If I do the OE pipe can I just pull timing cover and...
2003 BMW 325Ci 2.5L Unknown VIN: WBABS334X3
We installed an engine in the car. The car was not running before so we don't know any history. As soon as you start it sets a 97 code in the trans for CAN brake signal. The car seems to drive fine and shift fine. I cant find any info in Mitchell or on the web...
2003 BMW X5 4.4i 4.4L Dme VIN: 5UXFB33513
I have a 2003 x5, check engine light on. I have no comm with the DME. I can read all other computers just no DME. car runs and drives. I have removed the DME and openned it to see if I could see any burn marks on the board. None found. Reinstalled DME and chec...
1989 Buick LeSabre Limited 3.8L No Start, Stall VIN: 1G4HR54C6K
Car came in for intermittent stalling. Ran for 3 days, stalled once, like ignition cut off, immediately restarted. No codes. Scoped cam and 3X crank, they are in sync, 24X Ok. Yesterday, it seemed a little lumpy, so I hit the throttle and it died out. Hasn't r...
1995 Buick Riviera 3.8L leak VIN: 1G4GD2219S
fluid leak when very cold out from vent,pushes fluid out of vent tube,I have read the posts about the channel plate gasket being the cause just want to know of any other possibility.never saw this before now.I intend to replace the gasket just don't want to do...
2004 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DM57734
My testing reveals lo ref tan wire to have 2.4v at pcm with everything connected and key on. 5v ref is good.The one main ground to the pcm is good. I am calling this a faulty pcm, any other thoughts? Trouble codes: P0122, P0222
2005 Cadillac STS 4.6L starter VIN: 1G6DC67A45
No previous history known. Vehicle was driving fine. all of a sudden vehicle died while driving, client was able to restart with no problem. These issues become more frequent but re-starting the car became more difficult. Now vehicle will not start, there are ...
1992 Chevrolet Corvette 5.7L No Start, Stall VIN: 1G1YY23P5N
Hello everyone on iatn. I had this corvette towed in to me a couple of days ago and it was a no start. I had no spark and had no refrence low 8x signal coming out of the opti spark so I replaced the distributor with a reman unit. after that it would start but ...
2000 Chevrolet Silverado 1500 4.3L Poor Idle Quality, Hesitation, Surge, Cuts out, Misfire VIN: 1GCEC14WXY
This truck came to us barely running. Missing,chugging,or hesitating. It really wasn't driveable. First I checked fuel pressure. Measured 55 psi. Alldata spec was 60-65 psi. I put in a fuel pump. Pressure rose to 60 psi. The truck would now start but misfire ...
2003 Chevrolet Impala LS 3.8L MIL Lamp on VIN: 2G1WH55K13
Got this impala that has a p0420 and p0128 for thermostat and cat efficiency. I went ahead and slapped a thermostat in it because it was very quick and easy to do. That brought the temperature back up to specs. My question is the p0420. I didnt look at the o2s... Trouble codes: P0420, P0128 (Coolant thermostat below reg temp)
2004 Chevrolet Silverado 3500 6.6L Poor Idle Quality VIN: 1GCJK39274
Vehicle intermittently has very rough, unstable idle at stops when warm UNTIL increase throttle position by 1% (as monitored on scan tool). No increase in load or engine rpm, just barely touch the throttle pedal & issue clears up. No codes present. Has been el...
2008 Chevrolet Impala LTZ 3.9L Hesitation, Cuts out, Stall VIN: 2G1WS55328
iATN would not accept the VIN for entry, so here it is. [...] Officer took off for pursuit on highway, and when it reached 60mph it flattened out and started to decelerate. They played with the throttle a little and it accelerated again. Sometime... Trouble codes: P0172 (Fuel Trim System Rich)
2005 Chrysler Crossfire SRT-6 3.2L Tire Pressure VIN: 1C3AN79N95
Put new tires on all the way around. Factory tires were at 35 LBS and wore out on the outer edges. New tires are 51 max pressure and if you run tires at factory recommended 36 LBS they look flat. At 44 LBS they look ok. Problem is that the TPMS light will not ...
2005 Chrysler PT Cruiser GT 2.4L Dash VIN: 3C3AY75S45
Complaint of the dash gauges and other warning lights in-operative,no dash illumination lights and no dome and mirror lights. Car came in with this complaint--left it set because I was busy. Now at times everything works and in-op again.Got UO155 for engine,26...
2004 Dodge Dakota 3.7L engine VIN: 1D7GL12K44
Thanks in advance, everyone. This is one of my car dealer customers. He bought the truck with a known noisy engine. Ended up having rocker arm and lifter problems (big surprise on one of these huh?), so he replaced the engine. The original intake was used on t...
2009 Dodge Durango SLT 4.7L Drivetrain VIN: 1D8HB48P79
While road testing, found vehicle has vibration between 60-70mph. Felt like balance issue so installed 4 tires and balanced. Vibration still present. Checked driveshaft play and found none. Still replaced u joints on rear driveshaft. Vibration still present af...
1997 Ford Mustang GT 4.6L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FALP42X4V
We got this car in for a coolant leak. Found intake crack on drivers side at thermostat. Talked with customer and gave options on replacing with OEM intake or the ford racing PI intake. Customer choose the ford racing upgrade. We changed all parts that needed ...
2005 Ford Expedition Eddie Bauer 5.4L Misfire VIN: 1FMFU175X5
After repair vehicle still had misfire on cylinder #3. Compression is 190 PSI. Performed leak down test is 2%. Scoped cam and crank sensor, wave forms are good. Both cams are in sync. Found noisy waveform on cylinder #3 ignition coil. Isolated #3 wiring from P... Trouble codes: P0303 (Missfire)
2006 Honda Civic Hybrid 1.3L No Start, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: JHMFA36286
as driving the check engine light comes on and speed drops to zero and vehicle begins to surge and hesitate, then brake system and iam lights come on than vehicle stalls. usually will not restart unless disconnect battery for a few minutes and reconnect. if ve... Trouble codes: P060A, P16D5, P16D6, B1169, 86 (lost communication with pcm), 2102
2009 Jeep Wrangler Unlimited Sahara 3.8L transmission VIN: 1J4GA59189
Initially the vehicle would drop out of drive into limp mode while driving.Codes stored were p0760 and p0846 2c. Replace solinoid pack due to fluid leaking into connector (tsb #21-009-05). Now never drops into limp mode while driving, but when left sitting ove...
1998 Land Rover Range Rover HSE 4.6L No Start VIN: SALPV1445W
have a truck that wont crank the security system is in lock down . the remote key was lost by the last shop 2 years ago and the car has been sitting two years then it was towed to my shop. i understand the ecu and the body control have to be reset to each othe...
2002 Mercedes-Benz G500 5.0L compressor VIN: WDB3642381
Hello Friends, I need a little help on this one. The air condition control module on the dashboard has the light on all the time in the EC button, the auto button doesn´t do anaything, only the blower works on speeds. I scann the vehicle and no codes are displ...
2008 Mercedes-Benz GL450 4.6L door lock VIN: 4JGBF71E18
Hello, got a 2008 GL450 with some issues with the left rear door lock actuator. The actuator WILL unlock but WILL NOT lock. Initially thought it was the latch assembly (which comes with actuator, latch, exterior door handle mechanism all in one) because we w...
2000 Nissan Maxima GLE 3.0L water pump
Hey guys, I just replaced the water pump in this Maxima. Everything went smooth, At least I thought... This thing will not quit rattling from the timing chain area. The timing is spot on and it runs well. I know it might take some time to clear the air out of ...
1986 Pontiac Firebird Trans Am 5.0L charging VIN: 1G2FW87F9G
Had original alternator main battery cable terminal come loose. if I held it tight, car would charge, if I let it go, it would not. so now i have replaced the alt 3 times with same affect. It charges 14.5 at idle no load. start turning on electrical items and ...
1999 Pontiac Grand Am GT 3.4L No Start VIN: 1G2NW12E8X
we had this one towed in for blown head gaskets that we had diagnosed a few months ago. since we thought we knew the problem we pushed it in and changed them, car started right up i checked all the fluids and drove it around the block, pulled it back in to dou...
2004 Saab 9-3 Arc 2.0L convertible top
Pulled a B1010 code with my Tech2 for the convertible top on this Saab. Code only states malfunctioning sensor but doesn't say which one. Zero info on Mitchell,AllData, and Identifix for this code. Convertible top is inoperative and this is the only code. Any ...
2005 Saab 9-3 Arc 2.0L MIL Lamp on VIN: YS3FD79Y35
So we have p2138 which is a plausibility fault between circuit 1 and circuit 2 of the pedal position sensor. This car was brought in after having the pps replaced at another shop. We have also replaced a number of these for this fault in the past with great ... Trouble codes: P2138
2006 Suzuki Grand Vitara Luxury 2.7L No Start VIN: JS3TD94716
What do I need to do to reprogram the engine ECM. I have a rebuilt ECM from BBA and I have acccess to a J2534 device with a laptop. I can't find much info on reprogramming this vehicle and the nearest dealer is 2 hours away. Where do I find the software file. ...
2006 Toyota Avalon Limited 3.5L air bag connection VIN: JTDBA36B06
Thanks for your help. Some of the vin may be wrong. I was looking for some guidance before i proceed. I'm replacing the evaporator core in this avalon. The last time i disconnected a airbag i broke the center shorting bar. I've done some before with success bu...
2002 Volkswagen EuroVan MV 2.8L cam timing VIN: WV2NB47022
we are rebuilding this engine and we had the head and block both surfaced. the cam timing is off a little. I'm not sure if this will set and engine light. I have done several of these and the cam timing was right on. Is there any way to adjust the timing. This...
2006 Volvo XC90 2.5T 2.5L Air conditioning VIN: YV4CN59226
After replacing obvious leaking evaporator Seems like there's no circulation in the AC system, Compressor does not start but does run when by passing Still no components in AC system get cold Any help is appreciated Thanks!

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 BMW 325i 3.0L MIL Lamp on, Extended Crankng VIN: WBAVB13566
Hey folks, this one is fixed and should have been a slam-dunk Crankshaft position sensor, as many of you stated. It boiled down to technician errors. New sensor and broke the connector. repaired connector but crossed pins 1 & 3. Appeared to zap the sensor a... Trouble codes: P0335 (Crankshaft Position Sensor Circuit A Malfunction).
2007 BMW 335i 3.0L valve train VIN: WBAVB73517
Thanks to everyone who offered help on this one. Our customer declined the repairs on this and we reassembled the engine. This is after scoping the cylinders there was scuffing found on the cylinder walls. We had already discussed either tearing the engine dow...
1988 Buick Reatta 3.8L Accessories VIN: 1G4EC11C4J
Here it goes these are little monsters Gene from Kentucky was extremely helpful on this as he is a previous owner to a model with similar electronics and he helped me pin point it to the CRTC its the controller for the CRT screen so my next step is to fix this...
1991 Buick Park Avenue 3.8L Stall VIN: 1G4CW53L6M
Well I installed a oem crank senor gm part # [...] due to one wire having ...
2006 Chevrolet W3500 Tiltmaster W3S042 5.2L Cuts out, MIL Lamp on VIN: J8DB4B1636
well thank god I got it fixed I learned if the balance rates are way high 8.3ma and you can see fuel actually coming out of the fuel limiter valve that that's not the problem it the high pressure pump go figure this one about drove me to dranking but any way t... Trouble codes: P0087, P1093.
2007 Chevrolet Silverado 1500 LTZ 5.3L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCEK19087
I am a little embarrassed about this job because we totally missed that this engine was what Chevy calls an AFM (active fuel management) engine. We pulled TSB #[...] (dated 1/21/15) and description of our problem was on the first page: "SES light, P0300, mi... Trouble codes: P0300 (Random Missfire).
2005 Dodge Magnum R/T 5.7L left rear speed sensor VIN: 2D8GZ58255
Thanks everyone! We did swap the wiring to make the left look like the right to the ecu. It still drop once in a while from 21km to 11km momentarily. I hard wired the old speed sensor to the harness inside the trunk and it works fine. Bad connection going thru...
2006 Dodge Sprinter 2500 2.7L Hesitation, MIL Lamp on VIN: WD0PD64496
I Fixed The vans limp in strategy problem with a new maf, was hesitant to try a known good due to the $500 price tag. When scoping the mass air signal I noted that the known bad maf was toggling from 0-4 volts and about 500nano seconds delta time, and was read... Trouble codes: P2068.
2008 Ford F-450 Super Duty XL 6.4L Hesitation VIN: 1FDXF46R98
We'll I call spartan today and told me to plug all the sensors back in and then tune.with I did and worked out .thank for the replys. Just paranoid and didn't want to have a problem .they basically told me what everyone else said. And told me me I should have ...
2009 Ford Crown Victoria Police Interceptor 4.6L MIL Lamp on VIN: 2FAHP71V89
Well this one is fixed. I went back and focused on the A/C Clutch Relay Control Circuit issue because something did not make sense. When the scan tool ACCS PID showed A/C on, the clutch was not engaged. I was able to ground the Clutch relay negative terminal w... Trouble codes: P0401 (EGR flow insufficient.), P1408 (EGR flow out of range.), P0645 (A/C clutch relay circuit malfunction.), P2196 (O2S sensor excess rich bank 1 sensor 1.).
2008 GMC Acadia SLE 3.6L Windshield Wipers VIN: 1GKEV13728
Thanks to everyone for the replies. I found that the wiper arms were loose on the drive pivots. Seemed to be temperature related as they seemed tight in the shop but found that in the morning after sitting outside there was enough looseness to cause some slipp...
2008 Hyundai Tucson GL 2.0L heating VIN: KM8JUC8CX8
Thanks for all the help ,well after a lot of work we did a cooling system flush with cleaners and back flushed the heater core 4 times and the heating issue was fixed.
2000 Jeep Grand Cherokee Limited 4.7L alternator VIN: 1J4GW58N6Y
Ok we gave up replacing and programming ECM's. 1st one wouldn't program (dead out of the box), 2nd one programmed and ran ok but had a random stalling issue, 3rd one programmed and ran great for about 4 days before the charging system issue came back. After d...
2002 Land Rover Discovery Series II SE 4.0L Excessive Emissions, MIL Lamp on VIN: SALTY12422
Thanks go to Nicolas & Eric as smoke testing exposed a pretty severe vacuum leak on the left bank (1) with a steady stream of smoke blowing out the back of the intake manifold gasket area and upon removal it was observed that some of the sealing material for c... Trouble codes: 0E, 27 (Adaptive mixture correction TRA bank 1), 0E, 35 (Adaptive mixture correction TRA bank 2).
2004 Mazda 3 S 2.3L crank pulley VIN: JM1BK32334
thanks for the responses. The end solution to this problem was to take the tone wheel off the aftermarket mazda pulley that had no place for an a c belt and switch it to the aftermarket ford pulley that had 2 sets of belt grooves. came off with a screw driver ...
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