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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 26, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2000 Audi A8 Quattro 4.2L throttle body VIN: WAUZZZ4BZY
Help from Audi tech. I have an Audi a6 v8 which has a sporadic fault with the throttle. idle flares and sets codes. Only happens with the customer and they say more so when the car is cold.At one point they lost most power and could only get 25km out of it. It...
2002 Audi Allroad Quattro 2.7L Drivetrain VIN: WA1YD64B42
Hello Audi Techs, We have got a winner and nothing less of course. We have got a vibration at 75 and beyond, especially on long ascending roads. We have replaced the engine mounts, transmission mounts (all of them)The crack pulley we have watched while the eng...
2006 Audi A3 2.0L Compressor VIN: WAUNF78P46
We are at a complete loss here at the shop over this one. Here's the history, starting from about a year ago... 6/14/2012 Cust comes in, AC does not work. Check pressures and fault codes. Has over 100 psi in system on both sides and no codes in AC. Evac and R...
2001 BMW 325i 2.5L oil VIN: WBAAV334X1
Hi tech, this bmw leak on left front of the engine but it is hard to see where its coming from. I clean it and ran it @ 2000 rpm for 10 minutes on the lift and there is no leak not a drop. so I drove it for 2 miles and there is a leaks on the front differentia...
1998 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP52K4W
Have had this car here for a few days, and have not been able to pinpoint why there is no spark to any of the cylinders?? Ign module is well grounded, and has sound battery and ignition voltage while cranking. Scanner shows RPM,3x & 18x signals (All 200-250). ...
2001 Buick Park Avenue 3.8L Surge VIN: 1G4CW54K31
This one has me baffled. This is my own personal vehicle. I have been plagued with this surging issue for just over a year but has gone from very intermit to consitant now. The vehicle will start to have a surge/chug from around 46-60mph usually after torque c...
2000 Cadillac DeVille 4.6L coolant VIN: 1G6KD54YXY
Hello all hope to get some insight on this one. I have a northstar engine that's over heating. It came in low on coolant and had a leak at the upper radiator hose. Repaired the leak test drove and it over heats still. I have checked for combustion gas in coola...
1974 Chevrolet Nova Custom 5.7L No Start VIN: 1Y27H4L198
I only work on an engine like this once every year or two but being as this should be a fairly simple setup it is becoming very frustrating and I am hoping someone can point out the obvious that I feel I must be overlooking. To start with this car came in beca...
2001 Chevrolet Suburban 1500 5.3L Cuts out, MIL Lamp on VIN: 3GNFK16T71
This suburban will accelerate fine up to 25 miles per hour, then cuts out. At 25 mph the RPMs drop and will not accelerate. If I feather the throttle lightly I can get it up to 60 mph. Any ideas on what this may be? Thanks Trouble codes: P0131, P0151
2009 Chevrolet Suburban 1500 LT 5.3L Back up lights VIN: 1GNFC26019
Greetings all and thanks for taking your valuable time to help, much appreciated. No reverse/backup lights coming on. Lights work when I activate the back up lamp relay from the BCM X2 connector pin 22 D BU wire. Based on alldata, I'm not getting backup comman...
2004 Dodge Intrepid Police 3.5L Excessive Emissions, Misfire VIN: 2B3HD46V04
car came from another shop,i checked compression,plugs,coils did a upper engine carbon clean.no rhyme or reason it will start to miss on cylinders # 1 # 3 and # 5 at same time with identical misfire counts and pattern on all 3 cylinders.seems to do on cold sta... Trouble codes: P0300, P0132
1988 Ford F-350 XL 7.5L Hesitation, Surge, Stall VIN: 1FDKF37G1J
What am I missing. Runs so good in shop with wrong PCM and wont start with correct one, I'm lost.
1998 Ford Expedition Eddie Bauer 4.6L Front Air Shocks VIN: 1FMRU18W0W
Customers complaint is LF shock will not pump up. Lf measures 35 1/4". Rf measures 36 3/4". Using scanner the suspension can be commanded to vent and fill. Unable to fill air bags individually. When filling both sides stay at height they were left at. Used soa...
2000 Ford F-350 Super Duty Lariat 7.3L Noise VIN: 1FTSX31F8Y
The customer complaint is on a long uphill he hears either exhaust or air "fluttering". Thought it might be wastegate related. No codes except for EBP out of range code P0476-exhaust pressure control valve range/performance. Cleaned EBP passage and sensor and ... Trouble codes: P0476 (Exhaust Pressur control valve out of range.)
2003 Ford Explorer Eddie Bauer 4.6L front differential VIN: 1FMDU84W53
vehicle came a few weeks ago with oil all ovr the front end, differential was very hot then, customer took it and brought it back in with blown differential, replaced with used one, still gets very HOT! so hot you can feel the heat and can't touch it. this is ...
2005 Ford F-250 Super Duty Lariat 5.4L MIL Lamp on VIN: 1FTSW21595
this truck has constant lean codes both banks ticking from drivers side valve cover at idle cam timing adv error 1 is 0.00 cam timing advance error 2 is 1.25 - 4.01 at 2000 rpms its cam 1 0.00 cam 2 is 1.25- 14.56 and under load pinging severe. fuel pressure i...
2006 Ford F-150 XLT 5.4L MIL Lamp on VIN: 1FTPW14V86
This fine truck came in with a noise, worse on the right than the left. Closer inspection found both phasers faulty and the right chain loose. I replace the phasers and solenoids with actual ford parts and a timing kits made by cloyce. After the engine was all... Trouble codes: P0345 (Cam shaft position sensor A circuit bank 2), P0349 (Cam shaft position sensor A circuit intermittent bank 2)
2006 Ford F-150 XLT 5.4L MIL Lamp on VIN: 1FTPW14V76
Hello all its been a bit since working on a ford after moving to a GM dealer. We have a used f150 with a 5.4 that is setting a p0420 cat eff bank 1. before it came here it went to the local ford dealer and they diagnosed the cat as being bad. Well he brought i... Trouble codes: P0420 (Cat eff bank 1)
2010 Ford F-150 XL 4.6L No Start VIN: 1FTEW1C82A
One for you FOMOCO dealer guys. Shop replaced instrument cluster because a/c clutch would not engage and I have seen this before on these vehicles. They tried programming the PATS system with their aftermarket scanner but were unable to get it to program. They...
2001 Honda Civic LX 1.7L Torque Converter Lock up VIN: 1HGES165X1
Hi guys!! I have this civic with intermittent P0740. I can test drive and it will set P0740 once in a while and I can see the command for lock up and nothing happening. But it locks up fine sometimes too. I just drove it home and it did not lock up and set P0...
2011 Honda Odyssey EX 3.5L No Start VIN: 5FNRL5H48B
First thing we did scan for codes, found p0171 and 174, 2nd, check gas for contamination, first sample was dark but, no water was found, second sample was clearer, 3rd sample was good , 3rd we checked the fuel pressure, perfect, then we try to run the engine u... Trouble codes: P0171 (Fuel system too lean right bank), P0174 (Fuel system too lean left bank)
2007 Hummer H3 3.7L a/c compressor VIN: 5GTDN13E97
Blower fan is working fine on all speeds. When a/c button is pushed it blinks for 10 seconds and then goes off. The a/c compressor is never sent power during the time it is blinking. A/C compressor turns on when powered at fuse. Compressor relay tested and is ...
2007 Hyundai Sonata SE 3.3L Heater VIN: 5NPEU46F27
Heat not hot enough coming out of vents, temperature at core is 135 degrees. Temp actuator is moving, disconnected and manually moved it and no change. Do these things have problem with doors not sealing properly. Everything else seems normal. I did notice I c...
1993 Isuzu Rodeo LS 3.2L Hesitation, Surge, Cuts out VIN: 4S2CY58V9P
Vehicle came in with a faulty fuel pump (verified by fuel system tests and physical examination of pump, filter, and inside of fuel tank) which was causing the vehicle to go into a cycling loop as if the vehicle was bouncing off the rev limiter. After replacin...
1995 Jaguar XJ6 4.0L Rear Seal VIN: SAJHX1744S
We installed a new rear engine seal and oil galley plug in this vehicle on 11/11 with 183,000 miles. It returned with a leak on 11/12 with 193,700 miles, and the new rear seal had come loose from the bore of the rear plate and had traveled up the crankshaft. ...
2002 Jeep Grand Cherokee Laredo 4.0L MIL Lamp on
Customer came in Jeep Cherakee complaint of intermittent instrument cluster inoperable. Upon going down the road cluster would drop out AC would blow warm air nagivational system would go out and windows and door locks would not operate.Surched tech knowlage b... Trouble codes: P1687, P1686, JTEC, EV1C, DDM, P0DM
2004 Kia Sedona EX 3.5L Clutch Coil VIN: KNDUP13184
Customer bought this vehicle with the AC not working. We found an open clutch coil, customer requested replacing complete compressor. We put a KIA compressor on and all was well for ten days. Vehicle comes back with AC blowing warm and another open coil. We re...
1979 Lincoln Continental 6.6L ignition VIN: 9Y82S67736
intermit vehicle will start to misfire and run rough. have replace all ignition components with new, used all ford/motorcraft. cannot get a handle on this animal. suspect problem with valves, has anyone run into this. only happens under load, cannot duplicate ...
2004 Lincoln LS 3.0L harsh shifts VIN: 1LNHM86SX4
Car comes in with harsh shifts and CEL on. Ran test on codes and replaced EGR module. All codes cleared and all values are good. Test drive and trans shifts hard into 1-2 & 2-3. Pressures from PCC are always high when activated 119 psi but PCA & PCB typically ...
2009 Mercedes-Benz ML320 Bluetec 4Matic 3.0L No Start VIN: 4JGBB25E69
Vehicle towed in-died out- no start. Gauge showed fuel in tank. Had no pressure at fuel filter bleed, even with fp relay bypassed & could hear pump humming in tank. Charged weak battery for several hours, and added some diesel to tank just for the fun of it. A... Trouble codes: P0087 (fuel pressure), P11B8, P11BB, P11BD, P11C0, P11B1
2008 Mercury Milan Premier 2.3L Surge VIN: 3MEHM08Z48
This vehicle has a surge at about 35mph. I can duplicate it in the shop in gear at about [...]. I tried disconnecting the MAF sensor with no change. Fuel trims seem normal at 5%. Had a history code P2006 intake runner stuck closed, but code doesn't reset. A...
1997 Mitsubishi Galant ES 2.4L 1st gear VIN: 4A3AJ56G5V
like to thank anyone for help on this one.. I am not up on the mitsubishi transmissions and this job is killing me.. the car came in with bad engine... ran hot burnt..pulled engine tranny torgether and mechanic did mess up when assembling. damaged the pump gea...
2003 Nissan Altima SE 3.5L Hesitation, Pinging VIN: 1N4BL11E13
Hello everyone. This one is draining my energy. Car starts very good, idle is very good. No abnormal engine noise. But it is pinging at WOT at around 4000 RPM and it lacks power. Code P0420 was pending with the MIL lamp off. Tested cat back pressure on both b... Trouble codes: P0420 (Catalyst System Efficiency Below Threshold Bank 1)
2007 Nissan Xterra X 4.0L Starting VIN: 5N1AN08UX7
Hi Friends, a help here please. I have this Xterra, complete VIN: [...] with no start condition. After reading all the help in the forums and fixes, I have done a lot of work here and concluded the ECM is bad. I can access all other modules, but no...
2007 Subaru Forester X L.L. Bean Edition 2.5L MIL Lamp on VIN: JF1SG67697
Car came in originally for a Check Engine light Had P0083 OSV solenoid valve Left side malfunction (High). Replaced the VVT solenoid and Oil Switching solenoid cleared code, customer took car. Customer came back couple weeks later with CEL on and with same cod... Trouble codes: P0083 (OSV solenoid Left side malfunction)
1998 Toyota Avalon XL 3.0L a/c VIN: 4T1BF18B4W
What are we missing?? no ground to clutch relay unless you hold the a/c button on.when you let off the button,we loose the ground at the clutch relay..a/c button is not blinking..a/c works fine if you keep the button on with finger.we have checked clutch rela...
1997 Volkswagen Golf CL 1.8L no spark or injector pulse or rpm VIN: 3VWEK01H7V
Hi All, This old VW has my head in a vise. Car was towed in for crank with no start. Scanned ecm with autologic and snapon modis and got code 00515- no cam sensor signal. Unplugged three pin connector at distributor and measured outside pins KOEoff got BATTER...
2000 Volkswagen Jetta GLS 2.0L No Start VIN: 3VWSC29M3Y
This car was at VW dealer and had new key supplied because owner lost original key. When car sits overnight it will not start, produces code 17978 "starting blocked by immobilizer". When code is cleared from engine computer it starts and runs, will start repea...
2002 Volkswagen Beetle GL 1.8L No Start VIN: 3VWCD21C12
Hi, I have this 02 Beetle that will not start due to the immobilizer being active. I scanned for faults and got 01128 and 01176 in the cluster. I have checked the D2 antenna ring and it tested good at 24 ohms; harness from the cluster to the antenna ring has... Trouble codes: 01128 (Immobilizer pick up coil d20), 01176 (Key), 17978 (Engine start block due to immobilizer)
2001 Volvo S40 1.9L All Electrial VIN: YV1VS29591
No start The car acts as if the battery has been removed. Nothing on the car works. Battery is fully charged. In the under hood fuse box. I removed the fuses all tested termials all good except the 40amp fuse box interior,20amp engine, 30amp radiator fan and 4...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 BMW X5 4.4i 4.4L ac compressor VIN: 5UXFB5306L
thanks for the replys guys, we went ahead and replaced the pressure switch, evacuated and recharged and the compressor came on right away. I noticed this system only takes less than a pound, so I figure it is easy to either over charge or under charge; and als...
2004 Buick Rendezvous CX 3.4L speedometer VIN: 3G5DA03EX4
2004 Chevrolet C4500 Kodiak C4U042 6.6L Srs air bag VIN: 1GBE4E1134
Thanks to all that responded especially Craig and Alex. When I was looking at the schematic I was not seeing that the sdm was being tricked by the resistor block. The resistors were located behind the drives kick panel and the yellow 12v feed wire had corroded...
2004 Chrysler Town & Country Touring 3.8L MIL Lamp on VIN: 2C4GT54L94
Well guys, van's fixed. Used a O.E. O2 sensor and all is well. Called customer and light has not retured. Will try to sell O.E. O2 sensors all all vehicles especially chryslers. Thanks Trouble codes: P0032 (O2 Sensor 1/1 Heater Circuit High), P0132 (O2 Sensor 1/1 Voltage High).
1997 Dodge Dakota 3.9L all gauges VIN: 1B7GL23X0V
2006 Dodge Sprinter 2500 2.7L oil presure VIN: WD0BD64436
this one now has oil pressure. As many suggested it just had lost its prime. Once we put some nice thick assembly lube in the pump we had pressure right away. Thanks for all the help.
2008 Dodge Ram 3500 Laramie 6.7L 3-4 Shift VIN: 3D7MX48A88
2003 Ford Excursion Limited 7.3L Batteries VIN: 1FMSU43F53
First off, many, many thank you's to all who replied. This ended up needing an alternator. For some reason that I am not sure of, this alternator was intermittent in its draw on the batteries. (I freely admit that I am not the sharpest tool in the shed.) I ful...
2008 Ford F-350 Super Duty XL 5.4L Misfire VIN: 1FDWF36578
Thanks to all for responding. Well the trucks is fixed. I'll make this a brief as possible what all I went thru to complete the repair. The missfire data and cylnder contribution wouldnt work on my IDS due to the p0340 and p0344 codes. All values showed 0 with... Trouble codes: P0340 (Cmp sensor circuit), P0344 (Cmp cam pos.).
2003 GMC Savana 1500 5.3L Instrument cluster VIN: 1GDFH15T03
Thanks again for the help. We found the new power distribution center was missing an injector fuse. The new power distribution center came with new fuses so we assumed they were all there.
2007 Hummer H3 3.7L Hesitation VIN: 5GTDN13E47
ran some gm top engine cleaner through it and she is running perfect now. thanks guys Trouble codes: P0300.
2006 Hyundai Tiburon GT 2.7L Starting VIN: KMHHN65F76
I discovered that the body control module was opening the burglar alarm relay for the starter circuit, the owner did not want to bring to Hyundai for further testing so we installed a jumper wire at the request of the owner. Also found the blower motor relay w...
1999 Jeep Grand Cherokee Limited 4.7L Hard 2-3 shift VIN: 1J4GW68N9X
After reviewing this info, It has been determined that trans needs to come out. Customer has declined repairs at this time. CVI info: Measured Normal LR 126 25-85 2C 90 25-85 4C 58 30-85 OD 84 32-100 UD 72 30-100 Normal values are from Snap...
1992 Mercedes-Benz 300E 3.0L No Start, Poor Idle Quality, Stall VIN: WDBEA30D5N
Sorry for the delay, we took the distributor apart, cleaned and inspected everything but did not found nothing wrong?? After assembly seemed to run better, after driving a few times cleared up and customer was happy with it so we rolled it?? Sorry for no good ...
2004 Nissan Altima SE 3.5L Engine Performance VIN: 1N4BL11D34
Aloha All.. Thank you everyone who replied to this problem. The whole thing was taken apart a second time and I inspected every timing component. Physically aligned the camshafts to the heads before placing the gears. Made sure all marks were lined up... Coun...
1997 Porsche 911 Targa 3.6L MIL Lamp on VIN: WP0DA299XV
Thank you everyone for your replies, I am closing this post with out a fix, because we are trying to get the customer to come back in. Customer has had a couple of appointments that have been canceled due to his schedule issues.
2004 Porsche Cayenne 3.2L Power Loss complaint VIN: WP1AB29P94
Thank you for the replies! It turned out the problem was self inflicted by us taking the valve cover off and putting it back on (left side)The back of the intake cam has the hall style plate mounted on it that generates the signal and one of the prongs got ben... Trouble codes: P0018 (Inlet Camshaft Position correlation in relation to Crankshaft Bank 2).
2001 Suzuki Vitara JX 1.6L Coil Spring VIN: 2S3TD52V31
I found the crossmember earlier. I meant the spring was broken at control arm. Thanks for the help. I was hoping to find new coil springs. I'll source springs from a current salvage yard I use. They were listed as having them through car-parts.com. Thank...
2002 Volkswagen Passat GLX 4 Motion 2.8L Charging VIN: WVWTH63B02
This vehicle had left against my better judgment. Customer had to take car the following morning. I have since followed up to see how the vehicle has been and all has been fine. When I see the vehicle back for the next oil change I will run a few tests as s...
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