× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 13, 2014
International Automotive Technicians' Network (iATN) - Members Only
(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
2007 Audi A6 Quattro 3.2L Poor Idle Quality, Hesitation, MIL Lamp on VIN: WAUDH74FX7
Hello to all! This a6 came to us from a used car dealer. We started with clearing all of the codes and they come back instantly. When it arrived it was not in limp mode but after a short time ( less than 1 mile)of driving we experienced a hesitation then a l... Trouble codes: P2401 (Evap circuit low voltage), P0031, P0051, P1117, P1121, P2295
2008 Audi S6 5.2L Headlights VIN: WAUDN74F28
This vehicle has a right side high beam issue. However we have replace the Xenon Bulb, Socket or igniter and control uint. Burns up the socket and bulb. Thanks Dave
2004 BMW X5 4.4i 4.4L radio/cluster VIN: 5UXFB53524
hi every one just thanking you for the help in advance. i got a weird problem going on with a x5. what happens is intermittently the radio become completely inoperative and then the turn signal indicators on the instrument cluster become inoperative when the r...
1997 Buick LeSabre Custom 3.8L Idle VIN: 1G4HP52K1V
vehicle imediately revs into high idle at start up all componants are scoping out ok maf sensor ohms out ok mass air flow sensor working correctly any suggestions
2001 Chevrolet Suburban 1500 5.3L Catalyst monitor VIN: 3GNFK16T81
Hi guys i replaced catalytic convertors due to code po420, i have driven car probably 50 miles still won't run catalyst monitor. Alldata says to drive car at 55mph for 5 minutes, then decelerate to zero miles per hour without touching the brake. This is very ... Trouble codes: P0420 (Catalyst effencincy)
2004 Chevrolet Trailblazer LS 4.2L Stall VIN: 1GNDS13S04
This vehicle has been maintained by me for many years and am very familiar with it. The customer has never been able or willing dont know which, to leave it with me for any considerable amount of time for testing. I only got it to act up once and it is only in...
2004 Chevrolet Monte Carlo LS 3.4L Gauges VIN: 2G1WW12E64
This vehicle is back, same problem with erractic speedometer. This time I pulled and replaced stepper motors myself. Did 3 of the 4 (gas gauge was ok) that were misreading. Re-assembled, and speedo still erratic in lots of different ways. I suspect its the VSS...
2007 Chevrolet Tahoe LTZ 5.3L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GNFK13017
Vehicle came in no start, found crank, start, stall then just cranks.Fuel pressure 55psi no theft lights or codes. Replaced gas soaked spark plugs, same no start condition,found if hold W.O.T. vehicle will start and run very rich. Cold KOEO coolant temp 12F, I... Trouble codes: P0175, C0561
2008 Chevrolet Cobalt LS 2.2L Mechanical VIN: 1G1AK58F88
ALL DATA shows .8 FOR TEMP DOOR) DEALER says only way to get temp door is whole case half? heater core is 7.9hrs but recirc door is 5.9 Need a labor verification Please.
2009 Chevrolet Impala LS 3.5L misfire on cylinder 3 VIN: 2G1WB57K19
switch injectors, checked injector pulse, switched plugs, checked for spark on cylinder 3, all was ok. checked injector wiring, all injectors had 13.6 ohms. used injector cleaner per gm request did not fix.
2011 Chevrolet Express 4500 6.0L No Start, Stall
This problem original occurred about 2 months ago. At that time the problem was found that the engine was getting no fuel. The power at the fuel pump fuse was there. When we called GM for a fuel pump, the parts guy suggested we change the fuse box 1st. When th...
1993 Dodge W150 5.2L No Start VIN: 1B7HM16Y5P
This truck is flooded.My problem is that after the key is released from the cranking position the injectors and coil will light up continuesly.With two noid lights it looks like a Christmas tree but only while the key is released,while cranking spark and injec...
1997 Dodge Grand Caravan SE 3.3L rich VIN: 2B4GP44R7V
P0201 P0202 P0203 P0204 P0205 P0206 codes for fuel injector malfuction for all fuel injectors. both Lt and St fuel trim #s 24.5% at all times. warm engine at idle injector ms 1.3 map sensor at idle 19.4 inches of vacuum. tps steady.74 volts at idle.upstream O2...
1999 Dodge Dakota 3.9L Cuts out, Stall VIN: 1B7FL26X0X
this vehicle came from a car lot. dont usually work on veh like this, but... someone put in a used engine. they have had this all over trying to fix it. long story short, when in reverse only, it will surge, cut out, and/ or stall. runs decent in drive. p1391 ... Trouble codes: P1391
2007 Dodge Ram 1500 TRX4 5.7L rear
I have checked shocks springs and related mounts and bolts. Exhaust and hangers check ok. Body mounts ok. I have a noise like metal flexing in the truck bed area. Sounds like it is just under the bed. The noise occurs when driving slow like in a drive way or ...
2009 Dodge Journey SXT 3.5L Starting VIN: 3D4GH57V39
I checked battery voltage initially and found voltage at approx. 5.50 volts. Charged battery and vehicle started roughly and died after several seconds. Alternator voltage output was 14.3V while engine was running. No codes stored in PCM memory. The strange th...
2009 Dodge Ram 1500 Sport 5.7L horn,wipers,door locks TCS VIN: 1D3HV13T29
This truck came in with inop door locks,wipers,horn, cruse control. It also has the traction contron light on and esp,bas displayed on the dash. codes that came up are uo102 and uo126. I could use any help on this one. Thanks for your time.
1988 Ford F-150 Custom 4.9L Hesitation, Stall, Hard Start Cold VIN: 2FTEF15Y6J
The vehicle has been at my shop for about 1 month. I originally checked it out for inspection and replaced a leaking gas tank. The customer tok the vehicle home and it would not start the next day. a few days later I went over and got the vehicle (It started f...
1997 Ford F-150 Lariat 4.6L No Start VIN: 1FTDX1861V
ford f150 no start...ok im at the looney point.. HEELLPP.. thanks in advance for all help...ford f150 been mud bogging.. scan have no codes. condition is no start good fuel pressure.. good pulse to injectors.. good voltage to all circuits (B+).. good power to ...
2006 Ford Explorer XLT 4.0L Ignition VIN: 1FMEU73E86
Vehicle was towed in with no start condition. Checked all fuses and relays. All good and working properly. Checked power from ignition switch, all good. Checked OBD, no communication with PCM. All other control modules had com errors but communicated fine with...
2008 Ford E-250 4.6L fuel gauge VIN: 1FTNS24W78
van came in with burned up fuel pump replaced with dealer one I know for sure only 5 gallons of fuel and it reads 3/4 on the fuel gauge has anyone seam this before do I need to get the fuel pump module programed or what please help thanks
2010 Ford Focus SE 2.0L Battery VIN: 1FAHP3FN1A
I have been fighting this one for a few months. We have been the only shop to ever work on this car, and owner bought it new. Every 4-6 weeks, customer finds a dead battery in the morning. Car is used as daily transportation, and there is never a hint of the b...
2013 Ford Focus SE 2.0L No Start
Easy questions for you Fomoco dealer guys. Can you put a used pcm in this 2013 Ford Focus SE 2.0. This vehicle was wrecked right where the pcm goes. Reading on Mitchell this is a new generation vehicle where the bcm 'wakes up' the pcm as opposed to it being po...
1995 Geo Prizm LSi 1.6L No Start VIN: 1Y1SK5263S
ok this one was towed into me with a no start condition. The first thing I do is check for spark and injector pulse. I have neither. Then I pulled the distributor cap and see if the rotor is turning. It is so I check to make sure total timing is right and its ...
2002 Honda Civic LX 1.7L Oil VIN: 2HGES15802
Civic came in for oil leak and clutch replacement. Oil was all over the place, cleaned and added dye - found o-ring in oil pump was leaking and the rear main seal was leaking. Replaced o-ring and front crank seal, replaced rear main seal and oil pan gasket (al...
2009 Honda CR-V LX 2.4L engine stalls VIN: 5J6RE48349
vehicle has code p2610. customer had vehicle at another shop and they wanted to replace the trans. vehicle will start and run when put in gear it will stall out then restart but continue to stall when put in gear also it will stall in park under load. through ...
2006 Hummer H3 3.5L Poor Idle Quality, Misfire, MIL Lamp on, Reduced power VIN: 5GTDN13606
Ok GM guys need some input. Vehicle came for a water pump customer stated when he tried to drive it to us it was running bad and will not go over 40 mph. when i started it it was running good drove and accelerated good pulled codes mil codes P0030,P0036,P2101.... Trouble codes: P0030 (O2 heater control bank 1 sensor 1 P0135 heater performance), P0036 (O2 heater control bank 1 sensor 2 P0141 heater performance), P2101 (throttle actuator position performance), P1516 (throttle actuator control module throttle actuator position performance), P1682 (ignition 1 switch circuit 2), P0300 (misfire detected)
2008 Jeep Wrangler Unlimited Sahara 3.8L everything VIN: 1J8GA59198
Ok here's the story, I will try to keep it short. Vehicle was on a hunting trip and heater and pwr locks quit. It was cold out so vehicle was then parked. When they came back to it, the battery was toast, and a new one was installed. The only things electrical...
2004 Nissan Xterra XE 3.3L MIL Lamp on VIN: 5N1ED28Y44
Has had knock sensors replaced before this to repair knock sensor code. now it sets a p1444. We have a new ground to the intake because intake did not pass a voltage drop test per bulletin. The pressure sensor reads at the sensor with a dvom 2.8v on the signal... Trouble codes: P1444
2011 Nissan Altima 2.5L Cluster VIN: 1N4AL2AP3B
Hi. Guys need some help I have this 2011 nissan altima. The problem is that the. Out side. Temp. In the cluster is saying icy. --- The ac system works ok I still change the sensor by the grill . I check the wiring to the sensor one is. Ground and the other is ...
2000 Oldsmobile Intrigue GX 3.5L engine VIN: 1G3WH52H4Y
Customer came in with engine over heating. Did a block test and it failed. Had machine shop check heads and they were warped. Heads were tested and milled. Some bolt holes in block needed heli coiled so I took block to the machine shop since I knew they were m...
2008 Porsche Cayenne S 4.8L Poor Idle Quality, Hesitation, Cuts out, MIL Lamp on VIN: WP1AB29P68
Came in with P1026 stored, fuel high pressure implausible signal. Replace the high pressure fuel pump, still has code P1026 coming back. Replace fuel high pressure sensor, still has code coming back. Idle is poor and engine cuts out @ 3000 rpm. Rail pressure v... Trouble codes: P1026
2003 Saab 9-3 Linear 2.0L No Start, MIL Lamp on VIN: YS3FB49S73
Hello Friends, This car came to me and the customer said that the engine starts and quits. I have scanned the engine with my Modis and came up with the codes above. I called the customer who is out of town and he would really like me to repair it. I have done... Trouble codes: P0445, P0638
2002 Saturn L300 3.0L abs module VIN: 1G8JW54R52
Vehicle came in with low traction light coming on & abs pump engaging when starting to accelerate only when car is cold.Already replace left front abs sensor because it was reading erratic, & replaced both front axles because both tone rings severely rusted.Ve...
2004 Saturn Ion-3 2.2L Excessive Emissions VIN: 1G8AL52F54
Car Came In With Running Rich Complant. We Tested Sensor Reading And Fuel Trims Will Go From One Extream To The next. Seen As High as -50 on Short term Fuel trim. ( Seems Only to go that High On Acceleration). At Times ST Trimn Reading Will Drop To + 20 ( Usua...
2001 Toyota Camry CE 2.2L tach, warning lights VIN: 4T1BG22K91
Hi, This car came in with a no charge complaint and tach not working.The battery had died on customer and batt. and alt. replaced at another shop. I found #3 fuse in fuse box in dash was blown which supplies power for the tach, dash warning lights and voltage ...
2011 Toyota Camry LE 2.5L Cylinder block drain cock plug VIN: 4T1BF3EK8B
I'm attempting to change the coolant [with proper Toyota coolant] on this car. AllData shows that there is a drain plug for the engine block. I found this in COOLANT:TESTING & INSPECTION. The diagram shows the drain plug at the front/passenger side of the engi...
2009 Volkswagen Tiguan SE 2.0L MIL Lamp on VIN: WVGBV75N19
This car was transferred to me from another tech to diagnose this problem. I need a little information to move the process along. Customer complaint: The car was run out of fuel and now the check engine light comes on. The codes: P0171 system lean bank 1 and... Trouble codes: P0171 (System lean Bank 1), P119A
2009 Volkswagen Passat CC Highline 2.0L Misfire, MIL Lamp on
Came in for CEL for Fuel rail pressure sensor low pressure. I have checked the lift pump for pressure going into the high pressure pump and it is always around 6 bar and never drops below 4 bar even under high load. The real problem doesn't seem to show itself... Trouble codes: 04506 (Fuel Pressure sensor Intermitent), 00369 (Lean Bank 1), 00768 (Random Misfire), 00772 (misfire 4), 00770 (Misfire 2)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1998 BMW 740iL 4.4L compressor VIN: WBAGJ8328W
Idle speed does not increase by very much (approx. 100 rpm) have not had the vehicle back to complete the daignosis, but I believe this to be the problem. All other criteria are being met. Thank you all for your efforts.
2006 Buick Lucerne CXS 4.6L ignition switch VIN: 1G4HE57Y36
The Body control module fixed this one. this was a side post battery. The cables would not reach the wrong posts. I can only guess the doors being open or the key being in the wrong position shorted the BCM. In my research I found TSB's referring to wiring har...
2007 Chevrolet Silverado 1500 LTZ 6.0L oil pressure VIN: 1GCEK19Y77
I bypassed the engine oil cooler and now the oil pressure stays above the minimum. The truck was brought to me to install for the re builder of the engine. He has decided to run it like this. I think there may be a leak at the lifter manifold. I am going to pa...
1996 Chrysler Cirrus LXi 2.5L Poor Idle Quality
I think it was a number of things. I smoked it again and found vaccum leak left canister and egr tube. fix that still had high idle . tried iac no help. put the old throttle body on and new iac , that did it idles nice now thanks everyonbe'
2005 Chrysler PT Cruiser Classic 2.4L MIL Lamp on VIN: 3C4FY48B65
Hey everyone thanx so much for your help.Inspected timing belt and it must have stretched,(even though it wasnt due for replacement for 20,000 more miles)once timing marks were lined up cams were off by not even half a tooth,evidently that was enough,replaced ... Trouble codes: P0016, P0300, P0301, P0304.
2006 Dodge Grand Caravan SXT 3.8L Windshield washers VIN: 2D4GP44L06
At this point the washers are not fixed. I had five replies with 3 feeling that a new FCM is the only approach. There time was appreciated though the posts were somewhat theory and operation which I had already put in my initial post. I did have conversation w...
2009 Dodge Journey SXT 3.5L ABS Module VIN: 3D4GG57V59
As always thanks to all who took time to reply. As it turns out they had only replaced the module part of the ABS assembly and not the pump. That was the problem. The pump was bad. I had assumed the entire unit had been replaced and we all know what happens w...
2004 Ford Mustang GT 4.6L Rack and pinion VIN: 1FAFP45X04
Thanks to all who took their valuable time to help I nreplaced rack and pinion bled p/s and brakes again all is good now.Just coincidence it happened when it did. Thanks again
2007 Ford Fusion SEL 3.0L MIL Lamp on VIN: 3FAHP02197
Thanks for all the responses guys. I took it to another dealership and they was able to program just fine. Apparently the other tech didn't want to take time out of his busy day to enter the as built data manually. Thanks again. Trouble codes: P1635, P1639.
1998 GMC Jimmy Envoy 4.3L Excessive Emissions, ECM Monitors VIN: 1GKDT13W3W
Thanks to all who responded, and so sorry for the delay to close this. We basically had to drive the hell out of this vehicle. We ran all the monitors and passed the emission test.
2000 GMC Savana 1500 5.7L Engine VIN: 1GDFG15R8Y
After doing a compression test, injector pulse test, checking for misfires, changing harmonic balancer, and disconnecting torque converter and nothing changed the place we purchased the engine decided to ship another engine. Fixing to install soon. Thanks fo...
2012 GMC Terrain SLE 2.4L MIL Lamp on VIN: 2GKALMEK1C
The car has not returned and I can only presume that the owner took it to the dealer as the vehicle is still in warranty. My best guess that it is the cam actuator itself causing this intermittent problem. Thank you,John Trouble codes: P0014.
2005 Jeep Grand Cherokee Laredo 3.7L Fuel Tank VIN: 1J4GR48K35
Thank you ray for the help on this. Ended up this jeep has been sitting all winter. So Mr customer go to put gas in because the gauge says empty. Turns out the gauge is not working and the tank is full. ended up dropping the tank and pulling the fuel sender t...
2000 Lincoln Town Car Signature 4.6L No Start VIN: 1LNFM82W2Y
Bad transceiver module. Could actually get the car started only when the radio was on. Don't know why but It would. Anyways after performing some of the advised test we were led to that. Thanks for all the replies! iatn is the greatest thing since sliced ... Trouble codes: P1260, U1059, B1618, B1318, B1232.
2003 Mercedes-Benz S55 AMG Kompressor 5.5L long cranking VIN: WDBNG74J83
Thank to all . The problem was aftermarket crank sensor. I did put back the old crank sensor it working fine. And this time I have GS drove ,test...with fuel pressure gauge on the windshield and with the snap on scanner did the movie record...after 2 hours th... Trouble codes: P0335.
2003 Mini Cooper 1.6L Unknown VIN: WMWRC33493
This challenge is over, Alan was 100% on this one, the little ball bearing particles of receiver dryer came u part and clogged the condenser.Ended up replacing compressor receiver dryer with condenser and expansion valve and flushing the system.The pressures...
2007 Pontiac G6 2.4L Electronic steering VIN: 1G2ZG58B27
The steering problem was caused by a faulty steering torque sensor which is only serviced with the steering column assembly. Replaced the steering column, then caused an air bag fault, by not pushing the plastic tabs in securely enough on the air bag, pushed t...
2006 Subaru Outback 2.5i Limited 2.5L Mechanical VIN: 4S4BP62C86
Done swapped thank you. treat as long block ISH... Change all intake components
1997 Toyota Camry CE 2.2L No Start VIN: 4T1BG22K0V
thanks for all the replies i removed throttle body done a complete cleaning removed idle control valve and cleaned reinstalled tested several times engine starting great at this time advised customer to drive for a while she called back said it was great so fa...
2005 Toyota 4Runner SR5 4.0L Misfire, MIL Lamp on VIN: JTEBU14R85
I had it over the weekend so I pulled number 4 spark plug and pressure checked it over the weekend and used a bore a scope and found a very small trace of coolant but any found is not good. Needs a heat gasket and replaced to fix the problem thanks for all the... Trouble codes: P0304.
2006 Volkswagen Passat 2.0T 2.0L Engine VIN: WVWAK73C26
This one is fixed. Customer bought a used engine with 90,000 miles. They were told by highly respected local import shop that the cylinder head was the weak link on these motors. Some of the responses confirmed this. They were also told to only use VW castrol ...
2009 Volkswagen GTI 2.0L Misfire, MIL Lamp on
Thank you all you guys, especially Lou, Dan, Don & Jeff. We did the carbon clean, customer called back in 2 days and said everything was fine. I tell him to give it a week to make sure. The only thing I got stuck in the first place was the code 2304, and later... Trouble codes: P0300 (Random misfire), P0302 (Misfire cylinder 2), P0303 (Misfire cylinder 3), P2303 (Ignition coil...), P2304 (Ignition coil...).
2007 Volvo S40 2.4i 2.4L climate control VIN: YV1MS382X7
Thank you to all who replied. Magnus you were right on the money. Found left temp motor internally shorted, causing lin 1 bus fault unplugged motor and was back on line.Cust.didn't want to pull dash,and we were able to sneak out and new one back in on left sid...
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next