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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 6, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
2007 Audi A6 3.2L Lighting VIN: WAUBH74F17
Have an Audi A6 here with intermittent head lights (xenon) customer says left side started months ago and now right side. Will not always come on when head lights switched on. replace switch. did not help. checked head light modules. checked harnesses. appear ...
2007 Audi Q7 Premium 3.6L MIL Lamp on VIN: WA1BY74L27
Thanks to all who respond in advance. 2007 Audi Q7 with a VR6 3.6L engine came last year for fault below. Replace low pressure sensor according to TSB. Truck came back last week. Instead of replacing another sensor, we connected fuel pressure gauge right befor... Trouble codes: P310B (004 - Fuel Pressure Outside)
1994 BMW 318i 1.8L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire
hello everyone ,its been a while , the owner complains that once the car is hot it occasionally misfires and looks like it is going to stall,I have had trouble replicating the symptoms but have experienced bad misfire and stumble on take off on rare occasions,...
2007 BMW 328i 3.0L MIL Lamp on VIN: WBAWB33597
Vehicle came in with misfire and check engine light on , codes for eccentric shaft sensor will not clear, misfire is number 1 coil, we are getting the coil but dealer is quoting list price on the sensor at $900+ any insight on this code and sensor would b grea... Trouble codes: 2A31, 2A47, P0301 (Misfire cyl 1)
2004 Buick Rendezvous CX 3.4L Starting VIN: 3G5DB03E54
This vehicle is drawing the battery down at approx.3 month intervals,the first time it happened it was driven and parked for about 3 hours and it wouldn't start,replaced battery with new and done fine for 2 months and had to be boosted,recharged battery,load t...
1999 Chevrolet C2500 Suburban 7.4L No Start VIN: 1GNGK26J4X
We are working with a passlock system issue with this truck. Up until now, the ignition lock cylinder and the housing the sensor is in, and the ignition switch which includes the passlock harness all have been replaced. One of these is usually what causes the ... Trouble codes: B2947 (Passlock sensor pwr ckt low), B2958 (Passlock sensor ckt high)
2002 Chevrolet Impala 3.4L No Start VIN: 2G1WF52E92
Thank you ahead of time I have this car ok no start no spark but injector pulse is there i have power at the pink wire at the ignition module and ground i can see on the scanner that the 7x and 24x crank signals are reading and changing with the crank speed wh...
2002 Chevrolet Suburban 1500 LT 5.3L No Start VIN: 1GNFK16Z52
Hoping for a little help with an intermittent no start situation. 2 times now, the vehicle has experienced a no start condition (cranks but no start). Each time the fuel gauge has read empty, even though there is a little above 1/4 tank. Each occurrence, the v...
2003 Chevrolet Trailblazer North Face 4.2L Unknown VIN: 1GNDT13S63
Greetings to all.i have this chevy that at times you go to shut the vehicle off and it continues to run even with the ignition key out of cylinder.also at times when it does shut off the check engine light will remain on and drain the battery down.i had this t...
2006 Chevrolet W3500 Tiltmaster W3S042 5.2L MIL Lamp on VIN: J8DB4B1686
desired fuel pressure drops under heavy acceleration has a new fuel filter (old one wanst bad) and a new SCV kit installed (pressure regulator) The SCV was replaced because was a difference between the "desired" and actual FPR. FRP reaches 25000 on both, desir... Trouble codes: P1093, P0087
2007 Chevrolet Tahoe LTZ 5.3L Excessive Emissions, Misfire, MIL Lamp on VIN: 1GNFC13JX7
vehicle runs rough and misses all the time after it reaches operating temp. dtc p0301 misfire is stored. i cant tell if this is a displacement on demand type engine or a conventional design. it runs great when cold idles nice and smooth for about [...] then...
2011 Chevrolet Express 3500 6.6L pnp, causing no start VIN: 1GB6G5B16B
the problem i am having is trying to find a sub harness from the 6 speed trans. plug comes out of the r rear of the trans. it has a no start condition. actually if you wait 45 seconds after turning the key on it will start. i cant figure out how to unplug the ...
2005 Chrysler 300 C 5.7L rear axle VIN: 2C3AA63HX5
I am having an issue with the abs on this car and am going to have to pull the right rear axle does anyone have any tips on doing that job
2007 Chrysler Sebring Touring 2.4L Unknown VIN: 1C3LC56K87
This car will miss and set a misfire code ONLY above 2,300 RPM...Below 2,300 rpm , car runs fine and no misfire counters on scan tool , once rpm rises above 2,300 engine will misfire on cyl# 3...drop rpm below 2,300 misfire goes away and car runs fine...This c...
2002 Dodge Grand Caravan ES 3.8L Blower VIN: 2B4GP54LX2
This van has automatic climate control and van came in with the blower motor on high with key on but goes off with the key off - main control unit seems to operate correctly.. The display turns on and off and the speed displays it goes up / down as its changed...
2002 Dodge Neon ES 2.0L power door locks, horn VIN: 1B3ES56C82
the power locks are inoperative if i use the door switches or the rke fob (tested these and they functional). Intermittently the locks will lock and unlock and the horn will chirp. Tested powers and grounds at the RKE module and those appeared to be good altho...
2007 Dodge Caravan SE 3.3L Radio/heater VIN: 1D4GP25R47
Accessories don't work when van is running, van off with key on accessory, radio works. I have replaced the TIPM, found corroded off pins and poor terminals. Cleaned all connections and also replaced ignition switch to be sure. Everything worked great once I w...
2007 Dodge Ram 1500 TRX4 5.7L Stall VIN: 1D7HU18217
We have this 07 dodge 1500 with 5.7 hemi , customer say dies at stop signs, cleaned throttle body , was very dirty, and checked for codes, no codes, there was updatas for computer,so reflashed computer , everything is looking good on scan data. In four days we...
2002 Ford Windstar LX 3.8L power steering pump VIN: 2FMZA55462
pump will make belt chirp and power steering fluid get hot pump for a split second tries to stop flushed entire power steering system installed a filter in return side new belt new pump proper fluid for for ford pump same thing happens its almost like a interm...
2002 Ford F-350 Super Duty XL 7.3L injection system VIN: 1FTSF30F32
CUSTOMER STATES: After vehicle is started in the morning when cold has a rough idle, and stalls after driving a few miles on uphill slope (hard to get restarted). Same thing happened in past but it has been months since last incident. OUR FINDINGS: C.E.L. ...
2003 Ford Excursion Limited 6.8L Head lights VIN: 1FMNU43S03
Customer concern: Cold start and head lights begin flickering (erratically, no pattern )for 30 seconds to 5 minutes then stops and cannot duplicate. Have had vehicle in shop for 3 days, only acts up today. Lights flicker for short period, we have short diagnos...
2003 Ford F-150 XL 5.4L Anti-theft VIN: 2FTPF18Z33
Instrument cluster was not operating properly. Replaced IC. When I had it in shop I removed the IC, then was informed that the IC was a day out, so I put IC back in. Started truck, pulled out of shop, went about 50 feet and vehicle died and would not restart. ...
2004 Ford F-250 Super Duty Harley-Davidson Edition 6.0L Hesitation, Poor Fuel Economy VIN: 1FTNW21P94
After replacing head gaskets,egr cooler,and oil cooler. The truck has no power from stop.hot or cold.also when it starts it idles low and sounds flat.no codes. Removed intake and rechecked.checked icp and ebp for bias and compared with baro, all readings check...
2004 Ford Ranger Edge 4.0L ABS Activation VIN: 1FTZR45E14
I have this 04 ranger that activates ABS to soon on wet or snow roads Customer States never was like that in past I drove with scanner hooked up all speed sensors are equal speed but abs activates The customer had front pads and rotors replaced and I replaced ...
2005 Ford Explorer Limited 4.0L Unknown VIN: 1FMDU75E85
I have this 2005 explorer with the SOHC engine and it has a single cyl misfire that is very intermittent, will not set a code but in mode06 it's definitely cyl number 3 sometimes in a 16 mile ride it won't miss a single time other times it will miss 1 or 2 tim...
2007 Ford F-550 Super Duty Lariat 6.0L No Start VIN: 1FDAF56P87
Truck will crank over fires like it wants to start but doesn't, took fuel sample good, ficm sync is good and sync pids good. Fuel pw 1.8. Injector buzz test electrically passes. Tech hotline says that most likely the injectors have failed mechanically. I highl...
2007 Ford Fusion SEL 3.0L Drive-axles VIN: 3FAHP08107
Hello to everyone again. I need help with this fusion. It came in with bearing type noise in september of last year. Put up on lift and with stethoscope found noise at carrier bearing on jack shaft. Ordered new jack shaft due to no listing on bearings. Install...
2008 Ford Escape XLT 3.0L Antifreeze leak driver side of intake VIN: 1FMCU93168
Hello, We're having trouble finding the source of this slow antifreeze leak at driver side of intake manifold area. It started last month with very cold ambient temps. Any ideas of common leaks areas would be appreciated. Thanks, Chris [...]
2008 Ford F-250 Super Duty XLT 6.4L High Pressure Fuel VIN: 1FTSW21R18
This truck stalled on the road 5 miles after refuel. Replace fuel filters assuming it was cold weather problems. Found fuel rail pressure too low 4400psi. Replaced HP fuel pump. Still no start. Had a security system code set initially but no longer. Cranking ...
2014 Ford Focus SE 2.0L Electronic VIN: 1FADP3K20E
Good morning. This is my personal car purchased new the first of the year. It has the 6 speed dual clutch auto with OD off button on the shifter. They also have Select Shift as an option on other models where you can manually shift it. That one has a two posit...
1998 GMC Jimmy Envoy 4.3L Excessive Emissions, ECM Monitors VIN: 1GKDT13W3W
I have a 1998 GMC Jimmy that I can't run the EVAP & CONVERTER monitors on. The ECM is NOT resetting itself, the fuel level is 3/4, and the ECT is above 185 degrees while driving. I tried doing the drive cycle found in alldata several times from cold start to h...
2000 GMC Savana 1500 5.7L Engine VIN: 1GDFG15R8Y
A customer came in with this van that needed an engine because it was knocking. There was no vibration from the original engine. After swapping all the accessories from the old engine, to the remanufactured engine, it vibrated over 1000rpm from initial start-u...
2003 GMC C4500 Topkick C4C042 6.6L Cuts out VIN: 1GDE4E1103
This truck will start and run for appx 5-10 minutes, then just shut off like you turned the key off. No warning, no surging, just from idle to off. The only way to restart it is to manually pump / prime the fuel system again under the hood, but that will only ... Trouble codes: P0540 (Intakr air temp)
2003 Honda Accord LX 3.0L Tcs VIN: 1HGCM66463
Hey everyone, We had TCS on traction control light on and ABS. -found right rear wheel sensor faulty- replaced it. Abs and traction control light off now. -the only light is that yellow triangle with exclamation mark in middle. and it wont go off. -scanned it...
2001 Jaguar XK8 4.0L Shifting VIN: SAJDA42C91
When the car is being driven in stop & go, the transmission clunks into the lowest gear as you roll to a stop, and, when starting off it often seems to be in neutral but not pick up the gear until the engine RPMs are above idle causing the clunk on starting mo...
2007 Lincoln MKZ 3.5L Poor Idle Quality VIN: 3LNHM26T37
We are having a pretty strange problem with a lincoln mkz we are working on for a local car dealer. There is no history on this vehicle because it belongs to a car lot. There are no codes and all of the monitors have run. The problem is that when you let off o...
2009 Lincoln MKX 3.5L Unknown VIN: 2LMDU88C79
we got a 09 mkx in the other day with a complaint of a shuttering when driving . It seems to happen more on incline and between 40 and 60. we flushed the fluid after changing the turbine speed sensor ,output speed sensor and flashed ecm . still same problem. i...
2004 Mazda B2300 2.3L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 4F4YR12D04
This truck came in a week ago with a very low power complaint, with a P0351 for coil Primary/Secondary circuit. Spark plug electrodes were bad shape, so I replaced plugs, wires, and the coil with a new Denso unit. 20 miles later the same code came back with th... Trouble codes: P0351 (Ignition coil), P0301 (Cyl 1 misfire), P0304 (cyl 2 misfire)
2007 Mercedes-Benz ML320 CDI 3.0L long crank VIN: 4JGBB22E97
Dear mercedes benz diesel guru's. We have a ML cdi that got towed in.The customer states she filled it up with gas but did not start it. We removed the fuel pump,drained the gas filled it with 5 gallons diesel,bled the system. Test drove vehicle about 15 mile...
1994 Mitsubishi 3000GT VR-4 3.0L right rear brake hanging up and left rear hanging VIN: JA3AN74K4R
after replacing all brake hoses /calps/rotors/master cly. and brake booster...car leaves and and comes back about 2 weeks later with left front and right rear hanging up...checked brake sys over and could not fine any problems..sent car out again and 1 month l...
1999 Mitsubishi Eclipse Spyder GS 2.4L clutch VIN: 4A3AX35GXX
customer came in for clutch replacement after replacing clutch could not get a pedal replaced master and slave got a pedal but can not get enough of a throw on pedal for engagement if i adjust the pedal any farther im going to end up bending the clutch master ...
2002 Nissan Pathfinder SE 3.5L Poor Idle Quality, Stall VIN: JN8DR09Y52
pathfinder came from shop down the road no start condition. fuse for ecm blown find idle motor shorted . replace idle motor and computer . now runs good just won't accept idle relearn starts and stalls .all powers and grounds good at computer. smoked for vacum... Trouble codes: P0506
2008 Nissan Armada SE 5.6L No Start VIN: 5N1AA08D58
this nissan armada came in 12 days ago as a no start. the battery was dead and terminals corroded.replaced battery and cable ends, started right up charging was good no parasitic draw. fixed,goodby. it was towed back in 2 days ago, no start. fuel pressure was5...
2013 Nissan Maxima S 3.5L Starting VIN: 1N4AA5AP8D
Hello, I inherited this car from another shop and am trying to determine the next course of action, hopefully you guys will be able to help me out. The car came in with a no electronics turning on, the push button ignition switch would not change to ACC or O...
2013 Nissan Leaf SV .0L No Start, No ev systems VIN: 1N4AZ0CP1D
Vehicle powers up Dash but no EV systems are working since it was in accident and airbags blown I think it is in an Emergency Shutoff mode but my consult III won't talk to it need consult III Plus, Autel will get into some systems but no codes found. Owner...
1980 Porsche 911 SC 3.0L Hot start
HI all, Ok, I have this 1980 Porsche which came in for bad starting when hot. I believe the problem is with the fuel pump circuit. I have researched how the pump and relay works and it seems that the pump should only run while the engine is cranking, and then ...
1992 Toyota Pickup DLX 2.4L proportioning valve VIN: JT4RN93P4N
I found the brake proportioning valve leaking and replaced it with a genuine toyota valve. No problem. However, I am confused by the service and repair procedure in Alldata and want to make sure i have this thing correctly installed. I only pulled old valve of...
2002 Toyota RAV4 2.0L MIL Lamp on VIN: JTEGH20V82
Hey Techs, Thanks for taking the time. This may be long. Please read the whole thing. This 2002 Rav 4 came to us with code P0500 and speedo would drop to zero and trans would neutralize and/or shift oddly. Customer had replaced the ECU himself with one from ... Trouble codes: P0500
2004 Toyota Celica GTS 1.8L MIL Lamp on VIN: JTDDY32T34
Hello all, This celica has been from shop to shop and nobody could figure it out and now I'm on the same boat. Checked codes and found the P2441 code. Did the alldata flowchart, everything seems to be working normal? Pump turns on. Vacuum is applied to check v... Trouble codes: P2441
2007 Toyota 4Runner SR5 4.0L 4 wheel drive VIN: JTEBU14R77
Hi everyone, having some trouble with the four wheel drive operation on this 4-runner. Both four wheel drives lights are flashing on dash. Started by checking 20 amp fuse for 4x4, was good and power through. Went to Transfer Case Shift actuator and tested for ...
2006 Volkswagen Jetta Value Edition 2.5L cooling fan stays on VIN: 3VWPG71K36
pulled codes and had a map sensor code, found map sensor broken, replaced map sensor and cleared codes from all modules. fans on all the time..key on or off and with car running. If I pull the relay or fuse to the fans they will shut off but after reinstalling... Trouble codes: P0480
2007 Volvo XC70 2.5L Tpms VIN: YV4SZ59217
Thanks in advance ! As we understand it, car has had intermittent flashing TPMS indicator, since replacement of one wheel and sensor, due to heavy curb.damage. The only tool I currently have that will communicate with UEM is an Autel Maxidas. It found code UE...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2008 Acura MDX 3.7L navigation/ radio VIN: 2HNYD28458
I followed the wiring diagram and I had power on the purple acc wire with the ignition disconnected. I then went and checked the fuse box and had power on circuits that should only have power with key on. we replaced the under dash fuse box and all is good. it...
1996 Chevrolet Cavalier 2.2L Misfire
the problem was the after market injector supplied by the cars owner, the connector plugged in ok ,but the terminals never made contact. thanks to all who replied. Trouble codes: P0302.
2004 Chevrolet Silverado 3500 8.1L pressure loss VIN: 1GCHK34G14
2007 Chevrolet Suburban 1500 Z71 5.3L Misfire VIN: 3GNFK16387
1992 Dodge W250 5.9L Speedometer VIN: 3B7KM23C5N
We didn't receive any relevant help on this one. Were still waiting on approval from the customer to replace the PCM. We will update if approved and repaired.Thanks
1996 Ford Mustang SVT Cobra 4.6L Stall VIN: 1FALP47V6T
Turns out the low speed resistor was shot. Pulled the fender apron and found a damaged resistor. Looks like the car was wrecked at one point in it's life and somebody used silicone and duct tape to repair the thing. After searching the internet and finally ... Trouble codes: P0412 (testing and results).
1999 Ford F-350 Super Duty XL 7.3L Front seal VIN: 1FDWX37F3X
Thanks for all the help guys.The end play was the problem. We put new bearings in the trans and set the proper PRELOAD on the bearings No leaks so far!
2001 Ford Focus SE 2.0L Cooling Systems
I took serpentine belt off and checked leak with a mirror. A pin hole in the lower hose was spraying water over onto the back of the water pump. Customer got away cheap this time. 7 said timing belt has to come off to do the water pump and 11 said the t-belt d...
2002 Ford Ranger XL 2.3L won't set Readiness VIN: 1FTYR10D82
Well, customer finally came back just before the end of his 60 day grace period. Most of the replies said to check the engine temp closely. I had previously watched the engine temp warm up to 170', which is the first step in the Ford drive cycle. It warmed ...
2004 Ford Escape XLT 3.0L No communication with PCM VIN: 1FMYU93194
Thanks to the four people who replied to post. The fix was the PCM, but the cause for the PCM to crap out was connector 263 located just under smart junction box by driver side kick panel had a hole burnt through connector and wires for Inertia switch were sho...
2006 Ford Mustang GT 4.6L Transmission shifting VIN: 1ZVHT82H56
We checked clutch again, pilot, exhaust and none of these fixed problem. We pulled transmission and disassembled, saw no apparent problem. We found a Ford TSB for a 2007 Mustang that covers the problem we have and it is the same transmission. In involves repla...
2009 Ford Flex Limited 3.5L Left Rear Upper Knuckle Bushing VIN: 2FMEK63C29
Ford has updated Knuckle but no availability of bushings. Thanks for all replies.
2010 Ford Expedition Limited 5.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FMJU2A5XA
Thanks to everyone for the helpful replies. We determined further teardown was needed to check the valve train for sicking valves or something similar. The customer opted to get a second opinion at the local dealership. The dealership came to the same concl... Trouble codes: P0304, P0308.
1993 GMC C6000 Topkick C6H042 6.0L Parking brake VIN: 1GDE6H1P4P
Thank you Alan from Virginia! Used your vin to order the parts and successfully converted to a manual setup. THANK YOU!
2000 Honda Accord LX 3.0L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG1641Y
Thank you everyone who contributed. Had a couple suggestions to check the temperature sensor which I did and checked ok. Had a few email me and discuss the same problem they were having on 2000 Accords in this unseasonably warm temperature. We have concluded i... Trouble codes: P0301 (misfire 1), P0302 (p0303-), P0303 (p0304-), P0304 (p0305-), P0305 (p0306-), P0306 (testing and results).
2001 Infiniti I30 3.0L trans VIN: JNKCA31A41
2000 Jeep Grand Cherokee Limited 4.7L Stalls cold VIN: 1J4GW58N1Y
Thanks for all the help but the customer decided to take it back to where he bought it. Iac and cleaning the throttle body was the first thing that was brought up but I had cleaned the throttle body and tested the iac and it was fine although it would die even...
2002 Kia Sedona EX 3.5L Unknown VIN: KNDUP131X2
Well thank you all for the help. I am man enough to admit when we make a mistake in our shop. It happens. But the main issue, I was to focused on other things to see the real problem. Like Ricardo said check oil level for over fill. That was the problem. I won...
1999 Saab 9-5 2.3L Brake booster VIN: 123412341X
Awaiting on customer's approval to go ahead with replacing the brake booster. Thanks again for all the help I have received from you guys!
2001 Volkswagen Passat GLS 1.8L Abs VIN: WVWVD63B01
Hello techs thanks for all the help after replacing the mod with a used unit and endless hours of checking wiring harness the used unit turn out to be No good .i finally started unplugging mods and lead me back to the org mod abs once I unplugged the abs mod...
1995 Volvo 850 2.4L Ignition Power To Starter VIN: YV1LS5516S
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