Automotive Technicians Technical Discussion and Fixes for Sep 24, 2014

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	Help Request	Answers
	2001 Audi A4 1.8L Engine VIN: WAUDC68D01 The car is running excessivly rich the trims on channel 32 are +9 on idle and reaching up wards of +22 for partial throttle. If it runs in the shop it smells of excess unburnt fuel.	View
	2003 Audi A4 Quattro Avant 3.0L Xenon Headlights VIN: WAUVT68E13 Both low beam headlights will flicker at times. Only will do it one side at a time Ballast was replace last year on right side. Checked supply voltage to ballast and voltage is not moving when light is flickering. No codes for Xenon lights, can monitor outputs...	View
	2008 Audi A4 2.0L Hot Running VIN: WAUAF78E78 Hello Audi Techs, The fans run then shuts off, the fans are very intermittent with the A/C on and then the engine temp gauge goes up towards the red. The code P0480 comes up and is documented on this post with a description. Audi sells the fan module separate ... Trouble codes: P0480 (Coolant Fan Control Circuit 1 Electrical malfuction Intermittent)	View
	2002 BMW 745i 4.4L Starting VIN: WBAGL63462 hi guys i have this car in my shop from my used car dealer car sold vehicle will run for 2 hrs ok if shut off vehicle crank but wont start no spark replaced crank sensor same if vehicle cool down will start scan test codes 27a4 dme3 interface dme-ews getting r...	View
	2003 BMW X5 3.0i 3.0L door lock VIN: 5UXFA53583 I have no front passenger lock or unlock. There is no output from the module to the lock/latch assembly. All fuses are good and have a good ground. Checked the A pillar connector as per TSB and did not see any corrosion. I replaced the passenger door module wi...	View
	2006 BMW 325xi 3.0L Ibs VIN: WBAVT13596 Code 2E7C Bit-serial data interface, signal. Code will not clear. Code indicates problem with IBS(Intelligent Battery Sensor). I have not been able to find any test procedure for this code. I have inspected IBS for visible damage, none found. Car has no other ...	View
	2008 BMW X3 3.0si 3.0L starting VIN: WBXPC93458 I pulled codes.had misfire on #1-6-2- a 2d16 i.a.t./maf code a crank-inlet cam correlation code and a 2e7c bit serial data interface code. Scanning in the immobilazing mode found out that the starter was blocked due to p/n switch failure so we ordered the prnd...	View
	1990 Chevrolet Lumina APV 3.1L Poor Idle Quality, Surge, Stall VIN: 1GCBU05D8L This is going to be a long one so bear with me. This is my bosses car. As a rule, I don't shotgun parts at a car, but what the boss wants, the boss gets. About a month ago did an ignition tune up, cap rotor plugs wires just for maintenance. The current problem...	View
	2000 Chevrolet Silverado 1500 5.3L abs VIN: 1GCEK14T7Y No codes when stopping at 10 mph or less abs pump kicks in loss of pedel wheel sensors reading even numbers rear drops by one mph at 10 mph or less installed new pick up sensor for rear abs still same issue used snap on solus to watch system while driving func...	View
	2005 Chevrolet Silverado 1500 4.3L Stall VIN: 1GCEC14X35 when I start the truck and let it idle it runs about a minute then dies. If I start it and then rev it a little bit and then let it idle it will run for maybe 5 minutes and then stall.other times when it sits ideling it will surge for a split second as if turn... Trouble codes: U1041	View
	2007 Chevrolet C4500 Kodiak C4C044 6.6L engine warning lights and eng itermittent shut dow VIN: 1GDE5C3907 this truck traveled about 40 miles , driver said auto shut down light would flicker on way to job,, on way back ck gauges light came on but all gauges were normal, then engine shut down light came on and stayed on then engine shut down,, he called me I told hi...	View
	2009 Chevrolet Traverse LTZ 3.6L Incorrect Vent & Temp. VIN: 1GNEV33D79 HVAC Vent Temperature Control is not functioning properly. I have determined the Mode Door Actuator is no good as I have removed it, pulled the cover off & found a burned spot on the circuit board. I could smell it when removed. While removed I reached up behi...	View
	2010 Chevrolet Impala LS 3.5L EVAP and O2 VIN: 2G1WA5EK5A Vehicle came in with an evap leak. Found failed vent solenoid. Valve was replaced and system is now sealed and operates as designed. Vehicle needs to pass monitors to be able to pass emissions but after 250 miles driven after DTC clear my o2 monitor and evap m...	View
	1997 Chrysler Cirrus LX 2.5L Stall VIN: 1C3EJ56H6V Came in for a stall and check eng light. (PO118 coolant temp sensor) and inop temp gauge. Traced to a bad PCM. installed a new aftermarket on and test drove,ok. Customer took it, and it stalled after 15 miles, no codes I could get it to stall after reaching 1...	View
	2001 Chrysler PT Cruiser 2.4L Stall VIN: 3C4FY4BB11 i replaced belt in march had 38000 thousand miles on it. came in at 145000 and check eng. light was on cam crank sensor code p1391. replaced both sensors and rechecked timing with a waveform.i got the readings off of both sensors at the computer and it seemed ... Trouble codes: P1297	View
	2002 Dodge Ram 2500 Van 5.2L No Start, Cuts out, Stall VIN: 2B7JB21Y82 I am really struggling with this Dodge. I have received this Van from another shop not running after the a used engine wiring harness @ PCM was replaced. After doing a wiggle test on the Black PCM connector in the engine bay, it started. Engine ran fine for 10... Trouble codes: P0131 (O2 Sensor Circuit Low Voltage)	View
	2005 Dodge Grand Caravan SE 3.3L MIL Lamp on VIN: 1D4GP24R05 Hello iatn I'm in need of some awnsers. I have an 05 dodge grand caravan with a p0135 code 02 sensor 1/1 heater performance. this vehicle orginaly came in with a p0032 code (02 sensor heater high resistance). Testing the sensor found heater open, replaced sens... Trouble codes: P0135	View
	2008 Dodge Charger SE 3.5L Poor Idle Quality, Misfire VIN: 2B3KA43G18 cylinders 1 3 5 are misfireing and its throwing o2 sensor codes replaced o2 sensors and its still throwing the codes and misfireing...	View
	1997 Ford F-150 XL 4.2L engine VIN: 1FTDF0720V Thank for the time to read my telchhelp request, we replaced the engine block and now the engine have high idle P1506 code IAC Valve is reading 13% duty cycle at 1120 RPM when the engine star up the IAC duty cycle is 50% and them drop to 13%. (VALVE IS NOT ADJ...	View
	2006 Ford F-250 Super Duty XLT 6.0L Engine VIN: 1FTSW21P36 This truck is a real headache. It has a serious vibration from idle up to over 2500 rpm, most noticeable between 1500-2500. We have replaced several injectors and now have it running perfectly in regard to driveability. We replaced both the torque converter an...	View
	2006 Ford Escape Hybrid 2.3L Mechanical VIN: 1FMYU96H16 Hello Techs, This my own vehicle Ford Escape Hybrid. I replaced the transfer case and lost lots of tranny fluid. I just want to know where is the fill hole and what type of fluid it take. Thanks	View
	2012 Ford Mustang 3.7L No Start VIN: 1ZVBP8EM7C This convertible got rained on with the top down. It's a no start, instrument cluster is "asleep" or dead. Does it wake up with Key In, then Key On? Get a signal from some other module? Key In switch is OK. Saw a couple of posts where the cluster acted up befo... Trouble codes: P1602	View
	2001 GMC Yukon XL 1500 Denali 6.0L Misfire VIN: 1GKFK66U01 Thanks in advance for any help on this vehicle, it came to us from an other shop, it missfires on cylinders #2 and #7 at idle on misfire data .when take off idle still show miss but not as much as does it on idle.when power brake the engine show no misfire.onc... Trouble codes: P0300 (Multiple cylinder miss fire)	View
	1995 Hyundai Sonata GL 2.0L Timing VIN: KMHCF21F7S Water pump was out on the vehicle, I never work on a 2.0L Hyundai sonata before. The water pump was well hidden with no manual or books to go by, I finally removed the w/pump and I lost the timing. Finally got a hold of [...] and got some pictures, but the...	View
	1996 Jeep Cherokee SE 4.0L Power steering VIN: 1J4FJ27S1T Greetings all. We had this vehicle towed to the shop as a no-crank complaint. We confirmed that the power steering pump had locked up and kept the engine from turning over. We installed a replacement pump and flushed the fluid system to replace the fluid with ...	View
	2001 Jeep Wrangler Sport 4.0L No Start VIN: 1J4FA49S21 Thanks in advance everyone. I have this jeep that came in as an intermittent no start. The vehicle would run perfect for sometimes 3 days sometimes 5 days and then would shut off and not start. Sometimes it would run fine until you shut it off then it wouldn't...	View
	2005 Jeep Grand Cherokee Limited 5.7L Battery VIN: 1J8HR58295 Vehicle came in with a complaint of dead battery overnight. First diagnosed as the circuit powered by an IOD fuse. After checking all the components powered by that fuse, it traced down to the Security Key Remote Entry Module. Whne the plug was disconnected, t...	View
	1997 Land Rover Discovery SD 4.0L Excessive Emissions, Poor Fuel Economy VIN: SALJY124XV Stumped as to why both upstream and down stream O2's are stuck at 5.00v. Run engine up to 2500 rpm with no change in sensor voltage or short term fuel trim. Have applied shotgun approach to parts/diagnosis: fit 1 new upstream O2, mass air flow, engine ecu, coo... Trouble codes: P1187 (HO2S one heater open circuit)	View
	2011 Land Rover Range Rover Supercharged 5.0L Misfire VIN: SALMF1E44B Hi we have this rig in with many codes for missfires and low fuel pressure. Cleared and the code that came back was for the fuel pressure too low. It's still under warranty,so we are just trying to get it so he can make the 6hr drive to dealer, if its somethin... Trouble codes: P0087 (Fuel rail pressure too low)	View
	2000 Mercedes-Benz C230 Kompressor 2.3L Cruise Control Operation VIN: WDBHA24G2Y Hope one of you Mercedes techs can give me some direction on this one. The problem is with the cruise control system. At 40 to 50 mph the operation is flawless. At about 60 mph the problem starts. At the higher speed it will engage and work OK and then suddenl...	View
	2004 Mercedes-Benz ML500 5.0L Unable to refuel VIN: 4JGAB75E94 This Ml500 came to us unable to put fuel in the tank. We found the charcoal canister (part of the tank) was clogged due to fuel intrusion. Customer admitted to over filling several times. We were unable to get a new tank as they are on backorder. Reluctantly i...	View
	2009 Nissan Altima Hybrid 2.5L unknow VIN: 1N4CL21E39 problem child 2009 nissan altima 2.5l 4cyl.hybrid.brake pedal hard as a rock.visual inspection ok.scanned trouble code c1256:accumulator pressure low.c1252 motor timing long.It also takes long to start-up,customer is complaining about brake padal.I can not loc...	View
	2008 Smart Fortwo Passion Cabrio 1.0L Parasitic Draw VIN: WMEEK31X78 Hello and HELP, I have this little 2008 Smart that was towed into me 3 weeks ago with a dead battery. The vehicle had been to the Smart dealer 2 weeks before that and the dealer put in a new battery for a no start and then did a whole bunch of service work to...	View
	2011 Toyota Sequoia SR5 5.7L Gear Selection VIN: 5TDBY5G19B When driving down the road, the gear indicator has R light up at the same time as D. The reverse lights and back up camera stay on while in D.	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1999 Audi A4 2.8L Center dash vents VIN: WAUED28D4X I received no useful replies indicating why the center vent door would be fluctuating. Might be a function of the controller but I was looking for some confirmation. All replies I received assumed the heater blower speed is fluctuating which it isn't.	4
	2011 Audi Q5 Premium Plus 2.0L Leak VIN: WA1LFAFP4B Thanks for the help, guys. Well, after the customer's MASSIVE freakout we managed to calm her down long enough to explain what happened to her car. I actually found a few photos of what the seal looks like on a VW DIY forum site. It's basically an insane de...	8
	1998 BMW 540i 4.4L No Start VIN: WBADE6323W turn out the fuel pump relay was intermitten and found burnt terminals. further inspection found fuel pump bad. just my luck huh? thx to all those who replied and help get me going in the right direction	7
	2004 BMW 545i 4.4L MIL Lamp on VIN: WBANB335X4 Hello, and thank you to all that took the time to post. The general consensus was the passage ways in the head are partially clogged and to do the job right the heads have to come off. So, off to the dealer went to customer to trade in the car. So thanks agai... Trouble codes: P0491, P0492.	11
	2001 Cadillac DeVille DTS 4.6L No Start, No PCM Communication VIN: 1G6KF57981 Customer will need to have vehicle diagnosed properly by someone with a better scan tool than what I have. I cannot see other modules on my Actron 9580, neither can I control actuators and have bi-directional control. I referred him to a Cadillac dealership fo...	13
	1995 Chevrolet K1500 Suburban LT 6.5L oil over full VIN: 1GNGK16F2S Our first indication was to check mecanical on this vehicle but the customer declined. He had been reading on the internet about this engine and wanted pump checked first. As you know we sent injectors out and they checked O K. We decide to do a compresion tes...	7
	2008 Chevrolet Suburban 1500 LTZ 5.3L Misfire VIN: 1GNFK16398 Thank you guys for all your input. In closing, this problem is a fix. I did turn the head upside down to do the old water in the chamber trick, all was good. As in my first post, I did remove the rocker cover and watch the rockers rocking while the engine ... Trouble codes: P0304.	29
	1991 Ford F-150 Custom 5.0L no pulse VIN: 1FTEF14N9M Well, as I noted, it was something simple. I went back and re-checked my 5v reference at the TPS. I had the voltage, but when I unplugged and re-plugged the TPS, the fuel pump cycled. I began moving vacuum lines and wires around, and found that when the owner ...	27
	2003 Ford Expedition Eddie Bauer 5.4L engine VIN: 1FMEU17LX3 Like I said in The update it's fixed. the smart junction box (fuse box) Fixed it. Couldn't figure out how or Why. even how to test it. I guess it's a $300. Experiment Which is ridiculous. Thanks Y'all	18
	2004 Ford F-350 Super Duty Harley-Davidson Edition 6.0L door locks VIN: 1FTSW31PX4 sorry took way to long but VSM fixed it,not sure why.	9
	2004 Ford Taurus SES 3.0L Drl Head Lamps Blink VIN: 1FAFP55S64 WELL AFTER THE CAR CAME BACK AND TALKING TO THE CUSTOMER AGAIN.. I FOUND OUT THAT SOMEONE INSTALLED A DIFFERENT HEAD LAMP BULB ABOUT A WEEK AGO AND THAT'S WHEN THE DAY TIME RUNNING LIGHT STARTED TO FLASH.. I PULLED BOTH HEAD LAMP BULBS OUT AND LOOKED AT THEM A...	8
	2007 Ford Taurus SEL 3.0L Cooling Systems VIN: 1FAFP56U27 Thanks everyone for your replies, we just decided to take the common sense approach, problem wasn't there before (waterpump was just noisy) , so we put another one on there, and like magic, problem seems to be gone. Took a long hard look at both the original a...	7
	2003 GMC C4500 Topkick C4C042 6.6L No Start, Stall VIN: 1GDE4E1103 OK ALL FIXED.WORST PART IS NOT KNOWING HOW THE SYSTEM WORKS, ENDED UP CONNECTING FUEL HOSE TO BACK OF CP3 AND THEN PRIMING THE PUMP AND TRUCK RAN ON THAT FUEL, THEN BYPASSED FILTER HOUSING AND IT RAN GREAT 150.00 LATER NEW FILTER HOUSING AND TRUCK RUNS GREAT. ... Trouble codes: P0380.	6
	2002 Honda CR-V LX 2.4L MIL Lamp on VIN: JHLRD784X2 So this thing is fixed.Even though it didn't test bad I replaced the 2 way valve at the canister and no more check engine light.It doesn't make sense why but I'm done trying to figure some of these cars out.Thanks guys for all your help Trouble codes: P1457.	7
	2003 Honda Civic EX 1.7L Compressor VIN: 1HGES26743 Thanks to all that replied. Problem ended up being a faulty thermal switch in the new remanufactured compressor, so i ended up just replacing with a new compressor. Again thanks to all that replied.	11
	2006 Honda Odyssey EX 3.5L Drivers Vent VIN: 5FNRL38616 IT WAS THE HEATER MODE CONTROL MOTOR/ EASY TO REPLACE AND BECOMING VERY COMMON AMONG HONDA AND ACURA LINES	8
	1997 Kia Sportage 2.0L Not engageing gear VIN: KNDJB7230V HEY GUYS FINALLY FIXED THIS ONE, THE HYDRAULIC SYSTEM WAS FINE ON THIS CAR WE ENDED UP RE TRACING OUR STEPS TO SEE WHAT THE CULPRIT WAS. WE EVEN PUT THE OLD CLUTCH BACK TO SEE IF IT WOULD MAKE A DIFFERENCE, BUT NOTHING. SO WE ENDED UP REPLACEING THE FLYWHEEL ...	15
	2003 Lincoln Town Car Signature 4.6L rad fan VIN: 1LNHM82W33 decided this vehicle may have been afleet or limo at some point and had been flashed at some point.decided to go with oe fan to handle the on time of the fan.cold start flat 20 percent duty cycle to fan controller and if you turned on ac it would vary 30 to 40...	11
	2002 Mercedes-Benz SLK230 Kompressor 2.3L Airbag system VIN: WDBKK49F52 This car was finally repaired at Geneva Foreign & Sports in Geneva NY. They found inadequate pin tension on pin 21 at the ABS control module resulting in a substantial change in resistance causing a mis-communication with the right side airbag impact sensor. ...	3
	2006 Mercedes-Benz CLS500 5.0L Poor Idle Quality, Surge, MIL Lamp on VIN: WDDDJ75X76 I would prefer to have just the primary issue in the post headline however I "selected all that applied" with an very intermittant stumble idle and surge at stop when I should have just checked MIL and mentioned the other symptoms in the details. In the end th... Trouble codes: P200D, P2080 (P0153 left O2 sensor upstream of TWC slow response).	3
	2003 Saturn Vue 2.2L transaxle VIN: 5GZCZ43D43 installed rebuilt no problems aT ALL PROBLEM FIXED	7
	1991 Toyota Pickup 2.4L Poor Idle Quality, Hesitation, Timing VIN: JT4RN81A3M Many thanks guys. Denver hit it on the nose within minutes of my posting. As nearly everyone suggested it was the TPS adjustment causing my problem. Since some of you asked, the engine has been rebuilt, with new chain and guides, by the guy we bought it from....	13

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