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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 20, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
2007 Audi A4 2.0L MIL Lamp on VIN: WAUBF78E87
Hello Fellow Techs, This Audi A4 has code P0299 on for low turbo boost.Customer does not feel a lack of power. I have checked the boost recirculation valve on the turbo,it is the updated valve, and the diaphragm in it is in tact. I smoked the intake system (b... Trouble codes: P0299
1986 Chevrolet Celebrity 2.5L Master cylinder VIN: 1G1AW19R4G
This one is gonna sound stupid but it's been a while since I've worked on something this old, this vehicle came in with no brakes, the front rotors were worn down so bad that the brake pads fell out and the pistons popped out of both front calipers, put all ne...
1998 Chevrolet S10 2.2L Excessive Emissions VIN: 1GCC144X1W
This one has me baffled badly. No trouble codes, no misfires, runs great, no pinging, no overheating, fuel trim is 0 , new o2 sensor fluctuating quickly, add a little propane and nox goes to zero. What the hell am i missing?! i feel like i am chasing my tail! ...
1999 Chevrolet Tracker 2.0L Mechanical VIN: 2CNBE18C4X
i am reposted this auto. it came in with severe engine vibration when put in gear. thought i fixed it. i found timing was off one tooth. chain was loose. put new timing chain and geats and tenior on. now vibration is worst. so mitchell does not show oil pump h...
2004 Chevrolet Suburban 1500 Z71 5.3L cluster intemitant VIN: 1GNFK16Z04
The dash gages work at times. when I got it all gages were all stuck at various positions with no odometer reading. No lights came on when the key was turned on. I removed the cluster and tested battery and ignition power circuits and one ground-all OK, plugge...
2004 Chevrolet Silverado 1500 5.3L Suspension VIN: 2GCEK19TX4
Loud poping noise in suspension cat,t find
2005 Chevrolet Trailblazer EXT LT 4.2L Differential
Is there an easy way to removed front differental have it unbolted the shaft that passes through the oil pan is removed. seems like plenty of room but need a hint thanks
2008 Chevrolet Suburban 1500 LTZ 5.3L Misfire, MIL Lamp on VIN: 3GNFK16378
Customer was driveing , when ses lite, trac control lite, abs lite came on, engine started running bad.scanned ecm , found po306 , only . We checked #6 plug was fuel fouled, changed plug, no change. Did running and static compression, 50# & 150# respectfully. ... Trouble codes: P0306
2012 Chevrolet Malibu LT 2.4L Misfire VIN: 1G1ZD5EU0C
Vehicle came in with misfire. After checking we realise the misfire is on cylinders 1 and 3. While cranking injectors 1and3 will pulse, once the vehicle starts both injectors will stop pulseing. I,m useing Ease scan tool.
2004 Chrysler PT Cruiser Limited 2.4L Misfire VIN: 3C8FY68814
Gonna make this short and sweet for you Mopar guys. Have you guys had problems with aftermarket coils on these 2.4 turbo PT Cruisers.On the 2 cylinders that misfire the coil pack is drawing 2.5 amps more on my picoscope than the other side when it is running g... Trouble codes: P2305 (Ignition Secondary circuit insufficient ionization)
2008 Chrysler Town & Country Touring 3.8L Ignition Switch VIN: 2A8HR54P88
The Ignition Switch will not turn at all. It is a plastic key that is inserted into a plastic ignition switch. When you insert the key you hear the van ding like the key has been left in the ignition. There are no lights on the dash. I have tried removing the ...
2000 Dodge Durango 4.7L No Start VIN: 1B4HS28N9Y
I have an odd one here. I have had a hundred no start 4.7s, and have never seen this. Has good spark, fuel pressure, but no injector pulse. No codes. All data looks normal to me, including CMP/CKP sync. Has anyone ever seen the odometer read "P doNe"? At this ...
2002 Dodge Ram 1500 ST 4.7L Oil Pressure VIN: 3D7HA18N42
Over the last 8 months, and 3000 miles this truck has developed an intermittent "0" oil pressure reading. We hadn't been able to duplicate the reported zero reading until yesterday. He's a regular client who keeps up on his oil changes and maintenance, and if ...
2003 Dodge Grand Caravan SE 3.3L No Start VIN: 2D4GP44R63
No crank no start intermittant.Mil does not prove out when fault occurs. Then is starts and all is ok. But of course it refaults. Thinking bad ECU hoping for some imput. Can the ECU just be replaced with a used unit or do I need body control security module an... Trouble codes: N0NE
2006 Dodge Charger SXT 3.5L Front Washer VIN: 2B3KA43G36
Front windshield washer pump inop. Star Scan can operate it through the Integrated Power Module using the actuator mode. The SCM does not see the washer command from the multifunction switch when the turn signal stalk is pressed, but the wipers wipe several ti...
2004 Ford Explorer XLT 4.0L valves and camshafts VIN: 1FMZU63K04
I had this Exploder come in with bent valves. The right side camshaft jumped time. I looked at the old cam gear and the new kit I have gotten to replace all the gears,guides and tensioners and there is no specific dot or mark to line up on the head or the gear...
2004 Ford F-150 FX4 5.4L MIL Lamp on VIN: 1FTPX14534
2004 ford f150 5.4 came in with a cel. Scan revealed a p0171, system lean bank 1. Looked at fuel trims on my scan tool. Fuel trims showed ltft bank one pinned at thirty at idle. All others were plus or minus 5. When vehicle is driven all fuel trims are normal.... Trouble codes: P0171 (System lean bank 1)
2004 Ford E-350 Super Duty 6.0L power loss VIN: 1FDWE35P94
vehicle came in no start,cranked over strong.customer said they came out that morning truck would not start.ton of history codes,none present.checked fuel pressure first.seemed to be in spec.cranked over with scanner.only thing obvious was low icp below desire... Trouble codes: P0299, P1408, P2263
2006 Ford F-350 Super Duty XL 5.4L Passenger Airbag VIN: 1FDSF34546
Has codes for passenger air bag and pad. Which have both been changed along with rcm drivers bag and clock spring. Have ids ohms readings on drivers airbag 2.7ohms [...].2ohms tested pad at rcm. Pad in on position 950ohms off position 500 ohms Rcm does n...
2003 Hummer H2 6.0L power steering VIN: 5GRGN23U73
Thanks for your help in advance. I have this H2 in my shop that feels like it has little to no power steering sitting still regardless of engine rpm, as soon as the truck starts moving the steering feels fine. This truck has is equipped with hydro boost. Now w...
2001 Hyundai XG300 3.0L No Start VIN: KMHFU45D71
Hello all;winding down to the holiday and this shows up on a hook! Never saw one of these before;suspected timing belt as cause for no start;pulled cam belt covers to verify timing marks ok.Tested compression;marginal on front bank;70 to 100;cylinders washed? ... Trouble codes: P0431, P0156, P0161, P0421, P0455
2005 Hyundai Sonata GL 2.4L No Start VIN: KMHWF25S25
Just have a couple questions that i hope someone can answer. This car has no spark, it has 12v, ground and pulse at both ignition coils. Can anyone tell me the symptoms of a bad ignition fault unit on these cars ?? Do you loose the 12v signal to the coils ?? I...
2008 Jeep Wrangler X 3.8L Stability contr VIN: 1J4FA24188
Second time in for this one. Six weeks ago came in for same codes;Active UO125 lost communications with dynamic sensor,U1003 ESP can C bus performance;stored C2204 Dynamic sensor internal failure,C2114 Dynamic sensor supply voltage low. Gut instinct tells me d...
2001 Lincoln Navigator 5.4L MIL Lamp on VIN: 5LMFU28RX1
Thanks for any help. This Lincoln is killing me not sure where to go from here we keep getting a p0174 bank two too lean code but it is very intermittent will go a few weeks between setting code. The current fuel trims are bank 1 long term is 0-2% bank 2 long ... Trouble codes: P0174 (Bank two lean)
2001 Mercedes-Benz SLK230 Kompressor 2.3L ESP/BAS light, steering angle sensor VIN: WDBKK49F21
This car came into the shop with the airbag and BAS/ESP lights on after the customer said that she heard a dragging noise from the right front side of the car. I drove the car and didn't hear any noise, and there's nothing out of the ordinary visually with the...
2002 Mercedes-Benz CLK320 3.2L Convertible top opening VIN: WDBLK65GX2
This car came in with the convertible top not functioning and the trunk not releasing electronically. Autologic indicated an implausible signal from the soft top OPEN/CLOSED limit switch (S84/13). I found the soft top bow 'latched' switch was not registering w...
2008 Mitsubishi Eclipse Spyder GS 2.4L No Start, cranks slow, loud VIN: 4A3AL25F88
Vehicle cranks slow, starter has loud, hollow metallic sound, tried starting fluid, disconnect & recharge battery, no help. Checked valve timing ok, r&r crankshaft pulley, inspect balance shaft belt and rotor for ckp sensor(all teeth ok, with appropriate teeth... Trouble codes: U1109, U1117
2000 Nissan Xterra SE 3.3L No Start, Cuts out, Stall VIN: 5N1ED28Y2Y
The vehicle came back today in a tow truck . Now there is no communication first , second when you turn the ignition off...most of the warning lights in the dash stay on even with the key off . the only way the warning lights go off is if I disconnect the ECM ...
2005 Nissan Altima S 2.5L master cylinder VIN: 1N4AL11D95
I replaced the right rear brake caliper and pads today. Could not get caliper to gravity bleed. Did answer the phone a few times while working on it. Tried pumping the brakes, tried mity vac, can not get fluid to left rear. Car has NO ABS. Looks like a mini pr...
1999 Pontiac Sunfire SE 2.2L Misfire VIN: 1G2JB1244X
cuts out above 4000 rpms begins to misfire and then blind up like clogged cat but back pressure is good/fuel prssure is with in specs and has good flow
1997 Toyota 4Runner SR5 3.4L starter VIN: JT3HN86R0V
after the starter was replaced when the key is turned into the ign 2 position the starter cranks over until key is turned back off. we initially thought possible bad ignition switch, and it was replaced w/the same result. we've traced circuits and tested all f...
2005 Toyota Highlander 3.3L left rear window VIN: JTEEP21AX5
I have an old mastertech and a snappy solus ultra. both show no data in bcm for window operation. this being a multi-plexed system is there any way to check operation of drivers door switch? All other windows work properly. I have even disassembled dr window ...
1993 UD 1800 6.9L cluster VIN: JNAME08J7P
I have no service info and trying to fix a good customers left handed truck. Nissan UD repair info online does not go back to 1993. Problems: cluster idiot lamps and buzzer stay on all the time. Low air pressure, Battery charge lamp, low coolant lamp, also ser...
2000 Volkswagen Jetta GLS 2.0L cooling fans VIN: 3VWSC29M7Y
this vehicle came to us with a transmission problem. trans would flare shift 2-3 all the time. When i went to get the car the battery was stone dead. long story short the cooling fans are staying on and running the battery dead everytime you shut it off. once ...
2000 Volkswagen Jetta GLS 2.0L no cruise VIN: 3VWSC29M6Y
Checked all fuses, under measuring block 066 Switch 1 shows 1000 switch at res and applying brake can see 1110, then switch 2 shows 0011 thats off right, and no difference with moving switch.I also read switch has no voltage till 19 mph. No codes for cruise. T... Trouble codes: P0300 (needs wires and plugs)
2000 Volkswagen Jetta GLS 2.0L Poor Idle Quality, Stall VIN: 3VWSA29M5Y
This car came in with no idle when cold start up and wont go past 65mph when cold. I first thought maf and replaced it with a used and one from world pac with no change.Then i tested the wiring harness and acorrding to alldate test good. Fuel pressure is at 38...
1991 Volvo 940 T 2.3L Hesitation, Surge, Misfire VIN: YV1JA8747M
Customer complaint is car surges, hesitates, bucks and backfires. Test drove car to verify complaint.Car starts and runs fine cold for first 5 min.After about 5 min thats when problems start. Once it reaches operating temp it runs fine again.Had a code for o2 ...
2004 Volvo XC70 2.5L Unknown VIN: YV1SZ59H94
Replace front struts with sachs struts,(old ones leaking) upper spring seats(worn), Nordic lowers control arms(bad bushings), front calipers (one was hannging up), hoses(cracked), pads and rotors. now under acell. front end lifts and pulls hard to the right le...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2011 BMW 328i 3.0L engine noise VIN: WBAPH5C50B
exhaust vanos was suspected in our shop,took it to one dealer,tried to get it done under warranty would not do it,friend of mine at dealer told me,if you are original owner they may do it,took it to another dealer no use(every one is tight on money this days y...
2000 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP54K9Y
All I have to say is THANKS to ALL who replied. A few of you hit it on the head and it was too obvious that I am kicking myself in the butt!!! The positive terminal to the starter was corroded. This one is fixed and gone!!!
1970 Cadillac DeVille 7.7L mode switching VIN: L026984533
Thanks for the help guys- the controller has been sent out for a rebuild- that should be the final issue but if not I will add info if and when available. Greg and crew
1998 Chevrolet S10 LS 4.3L master cylinder VIN: 1GCESTFX5W
Fixed. I will give the prize to Sadler from NY. I pushed the front calipers in and then went to the rear and finally got fluid. Bleed it then a couple automated bleeds and bleed again. Gret pedal- thanks guys.
1976 Dodge D200 Custom 5.2L Hesitation, Stall VIN: C30BE6V126
Found the main jets pluged in carb. Thank you to all that replied
2006 Dodge Ram 2500 SLT 5.9L No Start VIN: 1D7KS28C26
Thanks for all the help, as most of you pointed out there was too much injector return flow, I plugged off one at a time and when I got to #5 cylinder it started and ran, I then put the fuel line back on #5 and it still started and ran, let sit back out side a...
2001 Ford Expedition XLT 4.6L theft light,no start ,dashes on odometer VIN: 1FMRU15W31
ok guys,I checked all wiring at power distribution box found no opens or shorts.I ignored anything with pats because pats wont make one die once it is running,i couldnt find any problems.I replaced the pcm relay and was never able to duplicate concerns after.i...
2001 Ford Ranger XL 2.3L Misfire VIN: 1FTYR10D01
customer needed the vehicle returned, did not have time for further diagnostic. i do beleive the problem was most likely internal engine part possibly valve spring, and the second ignition strikes were to reduce emissions. again, did not get to a definate answ... Trouble codes: 300 (random miss).
2002 Ford Taurus SE 2-Valve 3.0L No Start
Thanks to everyone for your help.The ecm was bad.On a side note one coil in the coil pack was not firing.Removed coil pack,tried on differant car,bad.Replaced coil pack and everything is good.Merry Christmas,Happy New Year.
2001 Honda Civic EX 1.7L MIL Lamp on VIN: 1HGES25791
This one is fixed. Next time before I post on here I guess I should tear it apart MYSELF and re-check. My tech tore it down twice re-checking and missed it both times. It did in fact have the wrong intake gasket. There was not a hole in the gasket at the E... Trouble codes: P0401 (Egr insufficient flow detected).
1986 Mercedes-Benz 560SL 5.6L Cluster Lights Inop VIN: WDB1070461
Thanks for all of the replies. After getting the cluster back from the repair facility for the second time,I still have no cluster illumination when I hook up the wiring to the cluster.This is a project car for the customer and I have not returned to running d...
1999 Mercedes-Benz SL500 5.0L Valve Train VIN: WDBFA68F9X
Well we had a few people sugguesting to replace plastic bridges below valve covers. I found a few pictures of what you were talking about but that was for the DOHC. This car is a SOHC. Anyway customer declined going any further with diag. We added a BG MOA add...
2002 Mercedes-Benz ML320 3.2L EPS module VIN: 4JGAB54E82
I have not fixed this vehicle yet. I thank you for your help. I have done things you suggested but not come up with a cure yet. Working side of brake lights' fine. When I ground K6 signal circuit on esp module, the lights' on. Pin #10(blue wire) on esp module ...
2006 Mini Cooper S 1.6L Mechanical VIN: WMWRE33506
Many thanks to Brandon, I researched the tensioner failure on line and boy tons of problems with these tensioners. I am surprised that only one!! IATN member gave me that hint. We replaced the tensioner,changed oil and filter and problem solved engine was quie...
2002 Nissan Xterra SE 3.3L MIL Lamp on VIN: 5N1ED28YX2
Thanks for the help. The fix ended up being a canister it was leaking where the bolts hold the close valve in. I didn't see any smoke from there when I tested it but when I used tire soap there were bubbles. Once again thanks for the help. Trouble codes: P1456.
2004 Nissan Maxima SL 3.5L MIL Lamp on VIN: 1N4BA41EX4
Thank you all for your replies. We ended up pulling the egr valve again and found some chunks of metal in valve. There is a TSB about the bank 1 Cat going out and causing metal to go into EGR. This was inspected on first removal, but showed up on second. T... Trouble codes: P1402.
1996 Pontiac Grand Am GT 3.1L engine VIN: 1G2NW52M6T
Thanks to everyone who replied. Received some good information. We replaced the oil pump drive to see if that took care of the problem. Nose still there unfortunately. Customer picked up car and is driving it as is and will return at later date to hopefully de...
2006 Volkswagen Jetta TDI 1.9L CV Joint VIN: 3VWST81K16
This Jetta is probably fixed. Before releasing the vehicle back to the customer, we had re-torqued the axle bolt after removing it for joint inspection. Using the proper torque procedure was evidently the cure -- no more noise. Having not been involved in the ...
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