Automotive Technicians Technical Discussion and Fixes for Jul 29, 2014

Join Now

Prev	Professional Automotive Repair Technical Discussions for July 29, 2014 International Automotive Technicians' Network (iATN) - Members Only	Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models

	Help Request	Answers
	2015 Cadillac Escalade 6.2L trailerbrake Customer wants a trailer brake controller installed on this vehicle. Vehicle does have the factory 7 pin connector at the rear bumper. Looking for information on where to purchase/order a trailer brake controller(aftermarket?), if there is a factory harness co...	View
	2000 Chevrolet Tracker 2.0L Stall Customer just brought this car. It was tow in for complain of dieing while driving. This car will run outside in the sun about 20 minute and it will die. When it about to die, it will stumble about 15 second before it die ( act like it about to run out of gas)... Trouble codes: N0NE	View
	2001 Chevrolet S10 4.3L engine VIN: 1GCCT19W31 lets start with thank you for any help! vehicle came in with a very loud tick noise pas side valve train? vehicle runs and drives fine. removed valve covers found #2 cylinder intake rocker tapping (dead lifter) replaced all lifters, cleaned push rods and inspe...	View
	2005 Chevrolet Silverado 2500 HD 6.6L Stall VIN: 1GCHK23205 I cant get it to act up on me has no codes at all anyone ever ran into a problem like this one thanks in advance	View
	2006 Chevrolet Trailblazer SS 6.0L Stabilitrak VIN: 1GNET13H16 This vehicle has an intermittent 'Stabilitrak' light on. It will occur pulling out slowly from a stop with the wheels straight ahead. The vehicle will barely move when the light is on. It feels like the ABS/Traction control activates. I reprogrammed the ABS/St...	View
	2007 Chevrolet Silverado 1500 Classic LT 4.8L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCEK19V57 Gentleman, thanks in advance for any quality input. This work truck {waste Management} came in with no power running very rich with only a code P0300. Fuel pressure is correct, o2's are switching rich/lean on the scanner. we removed o2's to check for exhaust r... Trouble codes: P0300	View
	2007 Chevrolet Suburban 1500 Z71 5.3L MIL Lamp on VIN: 3GNFK16367 Hi guys, need help from Chevy experts; I'm a Euro car guy so I don't work on these too often; this suburban goes intermittently into performance reduced mode (poor/ no acceleration)and throws code 2127 & p2138 related to throttle pedal position sensor. Resetti... Trouble codes: P2127, P2138	View
	2000 Chrysler Concorde LX 2.7L No Start VIN: 2C3HD46R0Y have spark on #2 cylinder only	View
	2003 Dodge Ram 3500 5.9L Hesitation, Cuts out, Stall, Misfire this truck has been to five shops including dealer. dealer cleaned fuel injectors. owner says problem got worst. he says it doesn't have the power it used to have. once in a while will run ruff under load. when first taking of. no codes. I killed fuel injector...	View
	2005 Dodge Ram 1500 SLT 4.7L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out VIN: 1D7HA16NX5 truck was brought in for bad hesitation off idle.tested fuel pressure was ok then under load would drop.removed gas tank found trash in gas tank this truck has been sittin up.replaced fuel pump pressure is steady now but still has very bad bog. spraying into t...	View
	1990 Ford F-250 Custom 7.5L low power VIN: 1FTHX26GXL I have a truck that seems to be low on power. The customer says he has another truck two years older with way more power. I was disappointed to find out the new vantage ultra can no longed test secondary ignition. I did get a poor reading from the coil and rep...	View
	2004 Ford F-350 Super Duty XLT 6.0L Cuts out VIN: 1FTSW31P4E vehicle came to us with complaint of intermittently cuts out after warmed up, i drove vehicle for 2 days before the thing just died at a stop sign after pressing on the accelerator. I can make it start to act up by doing 3 or 4 hard excel it will loose all pow...	View
	2005 Ford Freestar Limited 4.2L MIL Lamp on VIN: 2FMDA582X5 This vehicle came in dying and not starting and doing all kinds of strange driveability concerns. Our process revealed a water damaged PCM and connector. Initially the only thing we could get approved was a PCM and a little to repair/clean connections. The PCM... Trouble codes: U1009 (Scp communication bus fault), U1027 (O2 2-2 high voltage), U1059 (Egr insufficient flow), U1262 (p0158-), P0158 (p0401-), P0401	View
	2010 Ford E-350 Super Duty 6.0L Very Low Power VIN: 1FDWE3FP3A Ok all you power stroke gurus. I have a 2010 E 350 ambulance with a 6.0. We installed a long block from Jasper and now it has no take off power won't build boost till upper rpms. It has new injectors that were in old engine with 1000k miles on them. It has a b... Trouble codes: N/A	View
	2002 Honda Civic EX 1.7L starts then stalls VIN: 1HGEM21992 This civic came in for a smog check. It passed the test. We drove car out of the shop. The customer paid the bill. When he got in the car to leave, the car starts, then dies. It acts as if the key is being turned off. There are no codes in the PCM. The immobil...	View
	2007 Hummer H2 6.0L Poor Idle Quality VIN: 5GRGN23U97 This vehicle came in for a bunch of suspension work and a check engine light. Retrieved P0101 MAF circuit and Cat codes for both banks. First of all the vehicle has an aftermarket K and N style filter, exhaust headers, and aftermarket exhaust from engine back ... Trouble codes: P0101, P0300 (Multiple Misfire Detected)	View
	1993 Isuzu Trooper LS 3.2L MIL Lamp on VIN: JACDH58W0P Thanks in advanced to all that replies. This vehcile came in to have intake and valve cover gaskets replaced. No issues at that time, but now customer comes back in 3 weeks later with check engine light on. Check codes and found code 32-egr system. vacum press... Trouble codes: 32 (egr system)	View
	2000 Jaguar XJ8 4.0L Converter VIN: SAJDA14C2Y This car came in my shop with the check engine light and code P0741-Torque converter clutch system performance or stuck off. I replaced the converter and valve body with parts from a reputable company that I have done business with before. After the job was co...	View
	2001 Jaguar XJ8 4.0L Motor VIN: SAJDA14C91 This customer knew the motor was overheating, and continued to drive it until the motor shut off. It was towed in.We found the upper water neck/thermostat housing split down the center of the plastic casting.The engine will start, but sounds terribly.Obviously...	View
	2002 Jeep Liberty Sport 3.7L No Start, Stall Vehicle runs good though at times will cut off and you notice tachometer needle fluctuates when engine is off. While tachometer needle moves scanner shows that engine is running at 600 to 1200 rpms even though engine is not running also injectors are pulsing, ...	View
	2004 Jeep Liberty Sport 3.7L no bus VIN: 1J4GK48K04 this vehicle came in with no bus message on the odometer.checked for data/dtc's. only pcm would communicate. dtc u0101 dtc u0168 and u0155. I then disconnected I/p cluster , no change. radio,no change , airbag module , no change. disconnected bcm and the bus c...	View
	2007 Kia Rio5 SX 1.6L L/F Door Lock VIN: KNADE16397 Car came in all door locks worked properly except driver's door.. Would lock with door button and key fob, but would not unlock.. Tries to unlock but will not push the lock up.	View
	2008 Kia Sorento EX 3.8L Pedal VIN: KNDJD73638 This Kia brake pedal sinks very low when braking. Feels like a typical bypassing master cylinder. We replaced the Master and the condition did not change. Leaning towards sending them to the dealer for a possible ABS unit but I thought I would try here first. ...	View
	2005 Land Rover LR3 SE 4.4L MIL Lamp on VIN: SALAA25445 Ok Rover gods- Im stuck on this one... LR3 with a 4.4 that keeps throwing a P2096 code. I checked the rear oxygen sensors which both were operating. I replaced them anyway to no avail- the code comes right back within a 2 mile test drive. I don't see any crack... Trouble codes: P2096	View
	1998 Lincoln Continental 4.6L Radio VIN: 1LNFM97V9W I have this 98 Lincoln that when we push on the brake pedal the radio will shut off for about 3 or 4 seconds then come back on. It will not happen every time. It will not lose it's preset and goes right back to playing the channel that you're listening to. I h...	View
	1999 Lincoln Town Car Cartier 4.6L No Start VIN: 1LNHM83W3X Vehicle came in with a crank/no start situation. sprayed brake cleaner into intake, still no start. no fuel pressure at test port. connect scanner and i get no communication. unplug pcm and have all powers and grounds. computer was discontinued at dealership a...	View
	2006 Mercedes-Benz E350 3.5L MIL Lamp on VIN: WDBUF56JX6 Hi all in IATN land. Thanks for taking time from your day to read this post. This E350 was towed in with a dead battery. Found the pos post on aux battery broke off. Install OE battery, charged rear battery and started the car. Headlights are flashing with the...	View
	1996 Mercury Cougar XR-7 3.8L Misfire, MIL Lamp on VIN: 1MELM624XT This has a dead miss on #2 all the time. Other cylinders seem normal on a cylinder contribution test. Plug looked ok but replaced it - no change. switched wires - no change. Using in-line spark tester, spark looked ok. Replaced coil pack - no change. Tested in... Trouble codes: P0302	View
	1985 Nissan 300ZX 2 2 3.0L Shifting. VIN: JN1HZ16SXF Have this 85 ZX that has intermittent trans shifting issues. Usually as the trans get warm the symptoms go away. It seems to start off in 2nd gear. When this occurs, then the transmission will not shift into 3rd and will free rev. After a short period of time,...	View
	1966 Pontiac GTO 6.4L tach looking for old school tech.need some help.helping friend with his 66 gto. has point's ignition.he sent his dashboard tachometer out to be checked and fixed twice.when he bought the car tach didn't work.he sent it out to be checked and fixed.he had someone wor...	View
	2003 Pontiac Grand Am SE 2.2L Electronic VIN: 1G2NE52F63 Are the shift solenoids on this model an in vehicle repair. The info from MOD says pull trans. Has anyone done one of these 2.2 with 4T40-E trans. Thanks in advance	View
	2005 Pontiac G6 GT 3.5L output shaft seal VIN: 1G2ZH52865 This one was in to replace transmission valve cover and wiring harness and all switches accessed behind this cover, customer cracked cover when removing axle and removed cover and knocked harness and shift switches in the process, all functioned, but replaced ...	View
	2004 Saab 9-3 Linear 2.0L No Start VIN: YS3FB49S84 This car was towed in as a no-start. Key won't turn in ignition lock. I found fault code in memory for no communication between Column Integration Module and Steering Column Lock module. I attempted to remove the CIM with the Tech 2 and had no communication. I...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1994 Cadillac Eldorado Touring 4.6L blower motor VIN: 1G6ET129XR Sorry about the delay, shop owner was on holidays. Thanks for all the ideas. Here is what I did. Had 2 DMM's hooked up to the power and PWM signals, Road tested and voltage values never changed as blower quit! Next I scope tested the power feed circuit and the...	21
	1999 Chevrolet Silverado 1500 4.3L Mechanical VIN: 1GCEC14W9X CONFERMEND FIX,,,THE ONES WHO WERE GUESSING CAP N ROTOR WERE CORRECT. REPLACED THE NEW PARTS FROM LOW BUDGET DISTRIBUTOR. I HAVE FINALLY CONVINCED MY BOSS CHEEP PARTS ARE JUST THAT,,,CHEEP! FORCED HIM TO BY UP GRADE PARTS FROM ANTHER DISTRIBUTOR AND THEY WORK...	42
	2011 Chevrolet Corvette Grand Sport 6.2L Unknown VIN: 1G1YU2DW2B Thanks to Steve at the National Corvette Museum and to others. It was the seat switch. apparently common problem. see replies. switch felt normal, would click but once I got it out it was all apart. I was going to pull the seat thinking it was a motor but the ...	6
	2000 Chrysler Concorde LXi 3.2L Misfire VIN: 2C3HD36JXY man youguys are the best went back to kiss first passed then opend harness man what a nightmare found shorted wire for #3 cylinder with out you guys help i was lost thankyou very much	8
	2006 Chrysler 300 C 5.7L 1-2 / 4-5 Solenoid Circuit VIN: 2C3KA63HX6 This one does have the nag1 transmission. most replies pointed to sensor plate as likely cause. Due to intermittent nature of condition, not able to verify cause. Did not attempt a repair on this one.	6
	2000 Dodge Ram 3500 5.9L No Start VIN: 3B6MF3663Y Upon research we found out that if the lift pump fuel pressure is above 12 psi it effects a diaphragm in the VP44 effectively bypassing and not getting the required injection pressure. This happens mostly when hot(we had 20 psi Koeo). The correlation to cleari... Trouble codes: P1693 (code in companion module), P0122 (APPS signal voltage low).	7
	2008 Dodge Caliber SE 2.0L compressor VIN: 1B3HB28BX8 I am calling this thing fixed.We replaced the compressor and alternator.After quizzing customer more we determined that she had a slight noise and vibration at stops prior to a/c quitting.It had a complete charge so we evacuated system,removed compressor which...	5
	1989 Ford F-350 XL 7.3L No Start VIN: 2FDLF47M2K Thank You to everyone for your help. We found that the mechanical lift pump was not supply adequate fuel to injection pump. Replace pump and all is good. Thank you to everyone	10
	1999 Ford F-350 Super Duty XL 6.8L no power VIN: 1FDWF36SXX Changed fuel pump and all is good, thanks for the help everyone.	12
	2001 Ford F-250 Super Duty Lariat 7.3L No Start VIN: 1FTNW21F51 Thanks for all the help this monster is fixed. I removed valve covers and unplugged each injector and would then try to run the buzz test. I got lucky because it was the number 1 injector. With it unplugged it would run the test. I guess it was shorted . Sold...	12
	2004 Ford F-150 FX4 5.4L MIL Lamp on, Slight lack of power VIN: 1FTPW14534 I appreciate all of the help. Had the customer have a Motorvac injection clean performed at another shop. This took care of the lean condition. The injectors were apparently clogged to the point to cause the lean condition. God Bless. Trouble codes: P0171 (Lean Bank 1), P0174 (Lean Bank 2).	13
	2009 Ford Escape XLS 2.5L Hesitation, Poor acceleration VIN: 1FMCU92789 Thanks for all the excellent replies. Most interesting were the responses related to the throttle Body. I passed this information on to the owner. While at the Dealership getting his steering recall taken care of, they also replaced the Throttle Body. After a ...	10
	2005 GMC Sierra 1500 SLE 5.3L Unknown VIN: 2GTEK13T45 you guys are on it again,all pointed to booster,rodney from texas was right on.when I removed the booster I found it to be full of brake fluid! the prior master cylinder had to be leaking into the booster,the customer couldn't explain if fluid was being added?...	15
	1997 Honda Accord LX 2.2L compressor VIN: 1HGCD5633V Hey guys ,turns out it was a bad switch.Thank you all for your help,Bill	19
	1997 Honda Prelude 2.2L MIL Lamp on, buck VIN: JHMBB6148V This one is fixed. We replaced the iac abd no more probs. Thanks for all of the replies.	4
	2003 Honda Accord LX 2.4L engine VIN: 1HGCM56393 Well its finally gone-I ended up coming across an article in a Honda racing forum about the tensioners on these engines-the reference was that if you modify the cams/valve springs that the stock tensioner will allow the chain to jump around because of the incr...	15
	2006 Jeep Commander 4.7L T/C Shift Motor VIN: 1J8HG48N26 THANKS GUYS I DOUBLE CHECKED EVERYTHING AGAIN INCL. THE NEW SHIFT MOTOR ALL GOOD.ALL THE DATA IS IN SPECS.AND NO CODES. I SENT THE LADY TO THE DEALER FOR A RE-FLASH.SHE CAME BACK TO TELL ME ITS WORKING KNOW.	2
	2011 Jeep Wrangler Unlimited Sahara 3.8L wiper works intermittent VIN: 1J4BA5H14B Sorry for delay on this request, thank you so much to all member wich help me, the problem was on wiper switch, thank you, att. Hernan	4
	2007 Land Rover Range Rover Supercharged 4.2L lighting module VIN: SALMF13487 Thank you Nial [...]...	1
	2001 Lincoln LS 3.9L L/R door lock and window motor VIN: 1LNHM87A71 Here's what I had to do. Take the bottom of the seat up and the end peace of the back rest off. Pull the rubber door seal out of the way. Take the two door screws on the bottom of the door panel off and look at the other back to see where the screw is on the r...	4
	2009 Mini Cooper 1.6L elec VIN: WMWMF33529 The new fuse box had some extra fuses in it, removed extra fuses so it had the same amount as the one we took out, no change. We had to turn it loose and go to the dealer. Note the mini would still go 65 plus mph just had half the take off power.	5
	2012 Nissan Versa 1.8 S 1.8L MIL Lamp on, limp in mode VIN: 3N1BC1CP1C BOTH REPLIES WERE RIGHT ON THE MONEY. DISCONNECTED VSS. DATA CAME BACK. FOUND BURNT 10A FUSE FOR IG 1 CIRCUIT. REPLACED FUSE AND PLUGGED VSS BACK IN POPPED FUSE RIGHT AWAY. NEEDED VSS. THANKS FOR THE HELP. Trouble codes: U0101, U1001 (Can communication circuit), P0500 (Vehicle speed sensor circuit).	2
	1995 Saab 9000 Aero 2.3L No Start VIN: YS3CH65R1S Thanks for all of the replies. Alldata wiring diagrams were very poor, I got some off of mitchell and it showed an anti-theft module behind dash that powered up fuel pump relay. When I applied power to module the relay functioned as it should. Essentially t... Trouble codes: 2 (map sensor), 6 (oxygen sensor).	6

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