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Prev Professional Automotive Repair Technical Discussions for December 31, 2007
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Help Request Answers
1998 Acura Integra LS 1.8L Poor Idle Quality VIN: JH4DB7650W
First things first...Happy New Year everyone. The problem I'm having is the idle surging when hot. It doesnt happen all the time, but when it's not happening the idle is high(1200-1400 rpms). This problem happened last year and I replaced the IAC motor and the... Trouble codes: P0505 (Idle control problem)
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1999 BMW 323i 2.5L Surge, MIL Lamp on VIN: WBAAM3332X
Happy new year everyone. Here is my problem car. Car runs great until you hold throttle constant at around 45 MPH and decelerate so very slightly. The DSC, EML & Service engine soon lights will all come at same and car will loose power, not want to accelerate,... Trouble codes: 109, ENG (Eng Throttle activation PWM), 145, TRANS, 94, ABS (can incorrect data from DME)
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1996 Buick Century Custom 3.1L door locks VIN: 1G4AG55M02
Customer calls complaining of the door locks automatically locking and unlocking while driving vehicle. She has had a problem with the battery discharging when the car sits for a few days. Charging system OK. Replaced battery. Any TSB's out there on this?
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2000 Buick Regal LS 3.8L all VIN: 2G4WB52K5Y
This vehicle runs fine until you turn on either left or right directional, then engine stalls,8 out of 10 times,. but turn the key and it restarts.It will also stall if you place trans in neutral,than turn on the directional.
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1991 Chevrolet C2500 Cheyenne 5.7L Speedometer VIN: 2GCGC29K7M
I changed my rear axle ratio and I am having trouble finding a re-calibration plug to remove the old calibration from my instrument panel,this year has the DRAC built in the IP.I have all the documentation to reprogram to the new ratio but I need to know which...
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1995 Chevrolet P30 6.5L Leaks VIN: 1GBKP32Y2S
There Is An "Adapter" Fitting In between the #1 Port Of The Injector Pump & The #1 Injector Line. It Looks As If Though There Was A Wire Or Something Coming Out Of It @ one time. Where The Fitting Is "Seamed", There Is A leak That I Can't Stop. Since The fitt...
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1997 Chevrolet C1500 4.3L Misfire VIN: 1GCEC14W8W
Only cylinder #1 is showing any misfires. we did a motorvac, no difference. Current ramp on #1 injector shows max amperage @1.03 amps. smooth wave form and a little flat spot 991us into the pattern. total duration 3.4ms and time at max amps abt 2.0ms. tried to... Trouble codes: P0300 (multiple cylinder misfire)
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1999 Chevrolet Express 3500 5.7L No Start VIN: 1GCHG35R4X
This vehicle came in two weeks ago - was driven to shop. started and drove normally on road test. security light was not on. after scanning pcm and finding p1631 i called driver to ask about security light. he said it comes on "sometimes". I tested battery and... Trouble codes: P1631 (theft system - password incorrect), P0463 (fuel level sensor circuit high or open)
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2002 Dodge Caravan Sport 3.3L startring VIN: 1B4GP45332
intial complaint was when wet outside this truck would blow fuse ended up being number 23 fuse turn key on blows fuse 23 traced down found could p1495 bad ldp drawing almost 40amp replacedand code p1495 went away on ket cycle customer left drove car about 14 d...
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1992 Ford Ranger STX 4.0L throttle plate linkage VIN: 1FTCR14X5N
Happy New Years everyone! I have a 1992 2 wd Ranger towed in with the throttle not working, gas pedal not responsive. What we found is a broken plastic connecting rod (clips onto a ball stud at each end) that joins the throttle cable linkage to the actual pla...
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1995 Ford Contour GL 2.0L Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: 1FALP6531S
this vehicl belongs to my sister. and this is all the imformation i have been able to get without tools and test equipment.vehicle will stall 3-4 times when started .on 5th or so time it will go a few miles and stall again .have not been able to get the codes ...
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1996 Ford Taurus SHO 3.4L Excessive Emissions, Poor Idle Quality, Surge, MIL Lamp on VIN: 1FALP54N7T
Thank you for your time in reading this and any help you can give me. Customer brought vehicle in because he thought the transmission was bad, may still be, who knows. I found that the speedometer did not work, the engine missed, and it had a tank full of code... Trouble codes: P0500 (No VSS signal), P0135 (HO2S11 heater), P0141 (HO2S21 heater), P0155, P0161
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1998 Ford Ranger Splash 4.0L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1FTYR14X9W
hey all, need some help on this one. customer brought in from another shop. has new plugs, wires, maf sensor, coil pack, and fuel filter. still had miss so now i get it. knowing the 4.0 has problems with cracking at the valve seats i recommended removing and i...
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2002 Ford Expedition XLT 5.4L convertor VIN: IFMEU15L02
this one has me stumped. vehicle came in with overdrive light flashing and check engine light on and poor idle. When put into drive vehicle would die. Ran DTC codes are p0741 and p1744 which are both tcc system perofrmace/stuck codes. We replaced torque conver...
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2003 Ford Explorer XLS 4.0L interior lights VIN: 1FMZV73K63
Interior lights on this Explorer will not turn off until power saver relay kicks in after 10 minutes. With key on everything works normally, any door opened, interior lights come on, when door shut off they dim out. If you open a door with key on with interior...
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2001 GMC Safari SL 4.3L Poor Idle Quality, high ilde VIN: 1GKPM19W71
Customer complaint: On highway, set cruise and when disengaged or decellerating, idle sticks too high (goes about 40 km/h without depressing accelerator). Engine light came on, and when re-started next morning still on but now out. Normally kick acclerattor a...
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1998 Honda Accord LX 2.3L 2nd & 3rd gear whine VIN: 1HGCG564YW
When driving vehicle after transmission rebuilt you can hear a constant whining noise in 2nd and 3rd gear, but noise goes away when you disengage transmission
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2002 Honda CR-V EX 2.4L Stall, MIL Lamp on VIN: JHLPD78492
Customer brought us 2 camshaft position sensors to install.He had a state emission test done and the state's test prints out the code.We installed both sensors and the car runs no better and code remains.I only have generic OBD II data from my Genisys(in manuf... Trouble codes: P0341 (camshaft position sensor A circuit range/perf bank1)
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2005 Honda Pilot EX 3.5L Misfire, MIL Lamp on VIN: 5FNYF18485
Customer came in with CEL. Misfire codes for #3 and #6 cyls. During our road tests,p0420 Cat efficiency below threshold-bank one, set also. We performed tune-up with dealer oem plugs. Car still has a ramdom intermittent misfire on any cyl it want to. Not just ... Trouble codes: P0303 (3 misfire), P0306 (6 misfire), P0420
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2001 Infiniti I30 3.0L strut VIN: JNKCA31A01
we replace front struts with factory parts. including upper strut mounts. nosie still there
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2002 Kia Rio 1.5L MIL Lamp on VIN: KNADC123S5
hooked up scanner pulled codes po101(mass airflow circuit range problem) p1166(o2 sensor/pcm adaptation diag fault)po172(fuel system to rich bank #1)tested maf sensor with test from mitchell.maf did not pass the test.installed new maf sensor cleared codes.coul... Trouble codes: P0101
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1994 Mazda B3000 SE 3.0L Clutch VIN: 4F4CR12U7R
please help. i've be working on this headace for about a week. origanly came in for low clutch pedal and hard to get in gear. clutch and internal slave was replaced a while ago. I replaced clutch, slave, master cylinder, resurfaced flywheel and i even installe...
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1993 Mercedes-Benz 300E 2.8 2.8L Camshaft VIN: WDBEA28E0P
Hello All! This just came in from another shop with a story- here goes- The owner took the car to the other shop for an oil leak. The timing cover was leaking. They resealed the cover, took it on a test drive. While on the drive, the intake cam broke where the...
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1997 Nissan Altima GLE 2.4L Poor Idle Quality, Stall VIN: 1N4BU31D3V
Hi Guys, happy new year to all! I have a problem with this nissan altima ,When you start it up cold, it runs rough and stalls. If you put your foot on the trottle its fine. but it idles too low for being startup cold. 650rpm. I disconnected the idle motorwhen ...
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2000 Nissan Altima GLE 2.4L No Start VIN: 1N4DL01A1Y
HELLO, THIS CAR CAME IN STALLING VERY INTERMITTENT. iT STALLED ONCE IN A 20 MILE TEST DRIVE It also had five codes . I knew it was ignition but not much more. I found in archives about aftermarket rotor buttons.My bossss not being convinced ordered a new rotor... Trouble codes: P0550, P0446, P0464, P1490, P1650
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2002 Nissan Xterra SE 3.3L Alignment VIN: 5N1ED28YX2
Vehicle came in for new tires and alignment check. Caster camber and toe all out on the drivers side which all are adjustable without a problem but I'm hesitant to make adjustments due to a pop-up after I typed in the VIN saying "may require special procedures...
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1993 Other European GOLF III 1.4L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: WVWZZZ1HZP
aFTER REPLACING THE FLANGE AND THE DLE CONTROL SOLENOID, THE VEHICLE WILL IDLE PROPERLY AFTER A 10 MINUTE WARM UP PHASE. IDLE IS STABLE THEN WITH AIR ON OR OFF, BUT IF i DRIVE ONLY 10 MINUTES AND DO A SHORT HOT SOAK; THEN THE VEHICLE IDLES VERY BAD AND WANTS T...
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1997 Plymouth Breeze 2.0L alternator VIN: 1P3EJ46C0V
this car came in not charging and code p0622 feild not switching. followed flow chart in mitchell alternator faulty. replaced alt. still no charge. i checked the asd power wire to the alt its ok, also the dark green feild wire is good.power from the alt, to ba...
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1994 Pontiac Bonneville SSE 3.8L Hesitation, Surge VIN: 1G2HZ5213R
hello, we have been pulling hair. car came in with p0341, found shorted cam sensor. replaced cam and crank sensor, no codes pressent, tcc shudder still present. replace ecm. problem better short term only. car is back severe tcc shudder feel and miss on acc.ha...
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2001 Pontiac Grand Am SE 3.4L Poor Idle Quality VIN: 1G2NF52E81
This car had the intake gasket replaced. Run fine for a month than started to idle high 1300 rpm. Check for vacuum leaks none found. Scanner check computer found the VCM is requesting a desired idle of 1296 rpms. No codes tps reads 0% .55v at idle, iac 155 key...
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1997 Subaru Legacy L 2.2L Unknown VIN: 453BK4955V
this was a tow in and the timing belt had broken..we put in the new belt and it has no compression...i looked at the crank pully and the keyway is fine. it is at the 6oclock and the timing mark at 12 and the arrow on the gear is at the 3 oclock...both cams the...
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2000 Subaru Forester L 2.5L MIL Lamp on VIN: JF1SF6358Y
hello fello techs, especially any subaru guys, we have this subaru in for mil on had p1445 code we replaced valve and light was off for 9 months now light is back on and only tests i can find are resistance test ok and voltage test ok. if i connect pos. lead t... Trouble codes: P1445 (air assist solenoid malfunction)
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1996 Toyota Tercel DX 1.5L MIL Lamp on, rich VIN: JT2AC52L2T
This car ended up at my shop after another shop did some EGR repairs. Scaned found EGR codes and Lack of O2 switching. Found the EGR solenoid was not plugged in. Found bank one sensor one O2 was switching very fast with lab scope test. replaced o2 with toyota ... Trouble codes: P0172 (System rich)
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2000 Toyota Sienna LE 3.0L Misfire, MIL Lamp on VIN: 4T3ZF13C2Y
Hi guys I need Help Bad. 2000 Toy 3.0L v6 with p0302 #2 cyl misfire. The #2 Cylinder is dead. constant misfire. have 170 psi compression on front three cylinders. have replaced injectors, swaped coils replaced plugs. replaced lower intake gasket. removed valve... Trouble codes: P0302
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2000 Toyota Tundra Limited 4.7L engine VIN: 5TBRT3818Y
Good morning everyone and happy new year! this is my first time asking for help... Toyota is not my specialty but he's a good cutomer. So hopefully some one has some ideas for me! truck came in for a CEL, and for the timing belt (at 135,000 it had never been ...
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1991 Volkswagen Jetta 2.0L Poor Idle Quality, Hesitation, Surge VIN: WVWTJ21G21
Ok this has me stumped. Car original came in a few months back for surging idle, could not find any visible vaccum leaks after performing smoke test, did wire shake test nothing, fuel press was good. Adjusted fuel/air mixture screw and idle smoothed out custom...
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1998 Volkswagen Passat GLX 2.8L Mechanical VIN: WVWPD63B6W
I have a passat 2.8 V/6 not a VR 6 that has a rattle type noise a idle and just of idle, Removed serp belt and noise is still there,Checked timing belt and tensioner seem ok, noise sounds like from under intake area.I read a lot about VR6 engine noise but this...
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1999 Volkswagen Cabrio 2.0L MIL Lamp on VIN: 3VWDBG1E2X
One code, very specific, for secondary air injection circuit shorted to voltage P1450 (17828) Mitchell test done, verified circuit from ecm to relay good and not shorted to power, next step replace SAI relay done cleared code, reset immediatly, if code resets ... Trouble codes: P1450 (vag17828 secondary air induction)
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2002 Volkswagen Beetle GLS 2.0L Surge, MIL Lamp on VIN: 3VWCK21C62
Help, VW Techs, I'm a Ford tech. Mass air flow code keeps coming up. Sensor wire is clean. Wiring harness is intact. Idle surges from time to time. Before I replace the sensor, is there anything I'm missing? Thanks,
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1995 Volvo 850 2.4L engine VIN: YV1LW5502S
customer complained that the car was hard to start. It refused to start for me. We pushed it into my shop and there was no spark. Replaced the ingnitor/coil and speed sensor (crank sensor) and now it sometimes starts. Fuel pressure is good, and the cam sensor ...
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1999 Volvo V70 X/C AWD 2.4L Evaporator VIN: YV1LZ56D8X
Hello my fellow techs. I wanted to post this help request before I actually start pulling what little hair I have out of my head. I got this Volvo with the a/c system that freezes. All the lines freeze and the evaporator turns to a block of ice. If anyone has ...
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 BMW 330i 3.0L srs light VIN: WBAEV53465
thanks guys. we fixed this one. the passenger seat occupancy pad was open circuit. we checked resistance of pad from another seat and it was not open circuit. so we removed the cushion and pulled off the cover from the used seat from a crashed car. and pulled ...
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2000 Chevrolet Venture 3.4L No Start VIN: 1GNDX03E6Y
Hey Everyone, The fix ended up being getting the second key from the customer, inserting it in the ignition and turning it. The new PCM would not accept a relearn until both keys were used. It does not say this in TIS2000, the new PCM manufacturers re...
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2002 Chevrolet Suburban 1500 LS 5.3L Automatic Level Control VIN: 3GNFK16Z62
Sorry for taking so long but customer has not returned. I have Mitchell and some have sent me the same info that I have. Others have sent me suggestions to look for but since customer will not return my call, not much more I can do. Again, thanks for your hel...
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2002 Chevrolet Impala 3.4L starter VIN: 2G1WF52E22
I WENT BACK TO THE DEALER AND GOT ANOTHER PASSLOCK//TUMBLER AND IT RELEARNED THE FIRST TIME SO I GUESS I GOT A BAD PART// I SHOULD HAVE INSTALLED THE OLD ONE FRIDAY AND RELEARNED THAT ONE INSTEAD OF JUST INSTALLING IT AND NOTHING HAPPENED/// THANKS FOR ALL YO...
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2003 Chevrolet Express 3500 LS 6.0L instrument cluster VIN: 1GAHG39U13
Thank you to everyone who replied with help. I was going to pull cluster out, but decided to check all grounds again. I cleaned all grounds and made sure they were tight. After doing this the cluster has not "dropped out". Vehicle has been back in service for ...
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2004 Chevrolet Impala SS 3.8L dash reset VIN: 2G1WP55124
Well I had to send this one to the dealer. The replies mostly said to check for power loss to dash and there was no loss so I replaced the electrical part of the key with no luck. The resetting was not wiggle related and did not happen on bumps. seemed like a ...
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2005 Chevrolet Malibu LS 3.5L ignition system VIN: 1G1ZT52815
I tried every suggestion that was received. Unfortunately nothing worked. The owner decided to take another route. Thanks to all that sent in the suggestions I was going in the same direction.
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1998 Ford Contour GL 2.0L Surge VIN: 1FAFP6638W
First thanks to every one . this problem turned out to be self inflicted , my tech pinned the crank about 2 teeth off where it should have been, theres a spot in the crank where it locks it from turning both ways and it is right next to the correct spot i foun... Trouble codes: 1381 (cam timing over advanced).
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2001 Ford Windstar SE Sport 3.8L engine replacement VIN: 2FMZA57481
hello Guys sorry it has taken so long to reply .but i ended up waiting for a parts place to open and i ordered a doorman kit which did come with the tool as many had said .thank you all
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2003 Ford F-250 Super Duty XL 5.4L emission failure VIN: 1FTNF21L83
Hi all, Well, I am closing this request even though a fix has not been found. As you know, this is my own truck. I had another inspection station do a heavy duty inspection, which is a sniff test, instead of the light duty OBD II test. It passed with no p...
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2005 Ford Escape XLS 3.0L No Start
As many people mentioned, it was the fuel pump. I finally got it to act up in the shop. Thanks IATN members for all of your help!!!
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1999 Honda Accord EX 2.3L MIL Lamp on
Many great responses on this one. Great thanks to Benson from California. Excellent explaination on how this system works. I backprobed the blue/black wire at pin C10 at the ECM. At idle I had 13.5v. At 4000 rpm driving I also had 13.5v. I replaced the soleno... Trouble codes: P1259 (VTEC Malfunction).
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2002 Hyundai Sonata GLS 2.7L hydraulic VIN: XMHWF35HX2
thanks guys replacing the master cyl fixed the problem.it had a bypass in the cylinder. by diconecting and blocking the ports the pedel still went down ,confirming a bad master cyl.
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1998 Jeep Cherokee Sport 4.0L No Start VIN: 1J4FJ67S4W
This one is down the road. It had a failed PCM. By verifing the powers in cavities A-2,22 the Grounds in cavities A-31,32 to the PCM. and removing the 5.0V supplies in cavities A-17 & B-31 of the pcm connectors. that should have brought back the 5.0 V out of P...
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1997 Kia Sportage 2.0L Misfire VIN: KNDJA723F2
Most replies pointed to the recall on the fuel injection harness. Went through all the steps. Appears to have cured the problem. Thanks for all the replies. I tried to reply personally through emails. Thanks again, Isom
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2006 Lincoln Navigator Ultimate 5.4L Surge, MIL Lamp on VIN: 5LMFU28596
Based on a few suggestions from responses I checked the MAF sensor out. I cleaned it and drove the vehicle again and found the sluggish shift pattern from before was no longer present. I took a cold drive, and a hot drive and got a clear result. I returned t... Trouble codes: P0430.
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1995 Mercury Mystique 2.0L abs module VIN: 3FALP6539S
Thanks for all these great replies. turned out to be the the abs module. The pump and valves are attached to the module. I suspected one of the valves were stuck, tried to get new one, service writer said there were none avalable. Opted to go with used. Instal...
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1988 Nissan Sentra E 1.6L No Start VIN: JN1PB21STJ
Hi gang, I really want to thank Frank in New Jersey for emailing me the ECU wiring schematic. What I found was one of the ECU grounds under the carpet on the pass. side, the factory connector had rotted in half. I repaired the wire and the ECU powered up and t...
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1988 Nissan Pathfinder SE 3.0L no reverse no 2nd no 4th VIN: JN8HD16Y2J
broken hard parts in trans still need to tear down but due to holidays havent had time thanks for help guys and happy new year
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2002 Nissan Frontier 2.4L fuel tank venting VIN: 1N6DD26S52
THE REFUELING VENT CONTROL VALVE WAS REPLACED ALONG WITH A USED FUEL TANK,(ONLY AVAILABLE "WITH THE TANK" AND THE DEALERS DO NOT STOCK THE TANK) THIS SOLVED THE PROBLEM AND THE CUSTOMER IS HAPPY. THE VALVE IS PLASTIC AND LOCATED IN THE TANK AND IS ACTUATED B...
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1998 Pontiac Bonneville SE 3.8L temp control unit? VIN: 1G2HX52K1W
Sorry about the delay in response and thank you to the people that sent information and ideas. I ended up un-plugging the in-car temp. sensor and vehicle blew good hot air. The customer declined any further diag or repairs, he was just happy to have heat again...
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1994 Toyota Pickup DLX 3.0L No Start, Hesitation VIN: 4TAVN13D1R
I tried a new igniter,ECM and the wires are good from the igniter to ecm. the coil spark jumps .50 nice and blue. I have been busy with too much stuff going on to be able to just work on this truck and it is my fathers. I am going to try a few other things and... Trouble codes: 14 (IGF signal loss to ECM).
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2003 Toyota Tacoma S-Runner 3.4L No Start VIN: 5TEWN72N83
Thank you for you ideas. I am sorry to inform the problem has not been resolved. The engine will not start. The cam sensor and ignitor have been replaced. While cranking there is fire to the spark plugs. The injectors will pulse during the first few crank...
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2005 Toyota Highlander 3.3L vsc VIN: JTEEP21A35
THANKS FOR ALL OF THOSE THAT REPLIED, HAD TO SEND VEHICLE TO DEALERSHIP TO GET A NEW COMPUTER. WHEN I TALKED TO THE DEALERSHIP THEY TOLD ME THAT ANYTIME THE CHECK ENGINE LIGHT COMES ON THE VSC AND CRUISE CONTROL ARE DISABLED.
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