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Prev Professional Automotive Repair Technical Discussions for September 26, 2011
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Help Request Answers
2005 BMW 545i 4.4L No Start, No crank VIN: WBANB33525
This car was brought to me from a local body shop as a no start no crank condition. They said the car was vandalized, and that the front passenger window was broken, allowing water into the floor area. That was all cleaned up. I have communication to all modul...
2006 BMW 530i 3.0L radio nav
I have this bmw that has no radio,i drive functions,nav. After it was detailed i have read other posts about a micro power supply module in the trunk that gets water in it and causes these items not to work,problem is i cant find it or do they still have i.i r...
1994 Cadillac Seville STS 4.6L No Start VIN: 1G6KY5294R
Hello. I've got a 1994 caddy sts 4.6 litre north star I am having trouble with. The car came in with a customer complaint of intermittant stalling,usually on decel coming toa stop. Scanned the car with our new Mac Navigator, it would not recognize, no communic... Trouble codes: 36 (linear egr pintle position out of range), 95 (engine stall detected)
1991 Chevrolet Camaro Z28 5.0L Cuts out, Stall, no power VIN: 1G1FP23F2M
Trying to find cause of repeat fuel pump failures, pulled tank down and looked for any debris or loose baffles everything looks good. We are changing strainer and fuel filter everytime also. The low amps looks to me like something is clogging strainer, but its...
1992 Chevrolet K3500 Silverado 7.4L Brakes VIN: 2GCHK39N4N
Put all new brakes on this in January, developed a pull to right on braking. Made it "better" by swapping front pads sided to side along with the tires. Took camping with 11' camper, experienced severe pulsation coming down mountain pass. Left front tire felt ...
2000 Chevrolet Tahoe 5.3L blend door VIN: 1GNEK13T6Y
Vehicle blows hot air, but after driving for a while it goes to cold, it is a manual system... It hasen't acted up in the shop. We are thinking blend door issue, very common. Mitchell shows motor to be at lower section of heater box, yet dealership calls for a...
2000 Chevrolet Silverado 1500 5.3L abs VIN: 2GCEC19T9Y
hello techs, I'm working on this truck, No codes stored. Activates abs pump when coming to a stop. Data shows rear wheels going 1 mph slower than the front. This truck is from chicago very rusty under it. Any help will be appreciated thanks.
2006 Chevrolet Cobalt LS 2.2L bcm VIN: 1G1AL52F65
towed in to shop for no crank at the mall. Battery is new. Dash lights on when key is on, but all lights went off in start position.Starter cranks but no spark, no injection,when external battery hook to starter with remote starter button. Found no juice to st...
1998 Chrysler Town & Country (Van) LX 3.3L Bcm VIN: 1C4GT64L2W
Hi Guys, I usually do just keys and immobilizers but this one seems to be security related. We replaced a BCM in customers van. Original complaint was not security related, but was traced to bad BCM. We replaced the BCM with a used one, exact same part # , and...
2000 Dodge Ram 1500 Truck 3.9L Engine VIN: 1B7HC16X81
when truck is first starts it sounds like a popcorn machine..spits sputters and backfires and it sounds like it has a major vacum leak but all hoses and conections are good after keeping it running for around 10 minutes it runs fine the rest of the day with no...
2002 Dodge Ram 1500 Truck 4.7L Water Pump VIN: 3D7HU18N92
I Replaced The Engine Due To The Customer Cooking It. I Used A 04 Grand Cherokee Engine. Everything Bolted Up And The Engine Runs Fine. I Replace The Water Pump Because The Pulley Was Bent When I Got The Used Engine. At This Time I Didn't Replace The Fan Or Cl...
1997 Ford Windstar GL 3.8L control switches VIN: F10967B2FM
Im realy thinking this is a vacum issue. has anybody found the leak that is hiding from me, I have looked all over for any type of leak, even with a vacume pump and gauge. vacum to the panel seemed normal... 18in to 20. but it was kind of slow getting there af...
2000 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on VIN: 1FMRU1664Y
poor idle quality with P0401 code. cleaned EGR system, cleaned IAC valve, cleaned TB, triple checked EGR system vaccum routing. Live data shows that all the O2 sensors are extremly lazy. O2 sensors will show appx 0.030v and switch to 0.040 very slowly and some... Trouble codes: P0401 (exhaust gas recirculation flow insufficent)
2001 Ford Expedition Eddie Bauer 5.4L turbine speed sensor VIN: 1FMPU16L61
hi all thanks in advance I have this truck that the turbine speed sensor reads 147 rpms @ idle in park and nuetral. drops to zero when put in gear should read closer to eng rpm. scanner says rpm is calculated off voltage signal.also tss reading drops out aroun...
2002 Ford Explorer XLT 4.0L Engine VIN: 1FMZU73E82
Truck came in to shop with a timing chain noise. we removed engine and replace all timing chaing front rear and jack shaft and balance shaft with propper timing tools... the ballance shaft chain had broken guild. the other chains were loose but no broken parts...
2002 Ford Windstar LX 3.8L OD light VIN: 2FMZA51472
To all Ford Techs, I have 2 issues with this van. The OD light has been flashing for over a year. It shifts fine including going into overdrive. If I clear the codes, they come back as soon as I start the van. The codes are P1702-Range Sensor Intermittant and...
2004 Ford F-150 FX4 5.4L Hesitation, MIL Lamp on VIN: 1FTPW14534
I have this f-150 here that is setting a p0722 and p2106 codes. When it came to me two mounth ago it was just the p0722 code. At that time the sensor was working so I checked the wires from the sensor to the computer and found no falts costomer elected to chan... Trouble codes: P0722, P2106
2005 Ford Taurus SEL 3.0L MIL Lamp on VIN: 1FAFP56S65
Don't know where to start but have a hunch that the computer took a lightening hit. This vehicle runs great which is real surprizing but all the warnings lights are "ON"in the cluster. The only gauge that appears to work is the fuel gauge. All other gauges are...
2006 Ford E-350 Super Duty 6.0L MIL Lamp on VIN: 1FDWE35P66
This is an emergency came in with p0261 checked injector circuit.ohms .8 ohms ok both high and low circuits.replaced injector#1 problem still there.did injector balance test and found #3 and #5 very weak.guessing at ficm but very expensive guess.any... Trouble codes: P0261 (Injector circuit low)
2007 Ford Ranger STX 2.3L No Start, Cuts out, Stall VIN: 1FTYR10D07
Vehicle brought in for no heat complaint,found temp. door actuator in-op.Repaced and heat returned. Reason I'm posting is when I first started vehicle, it started hard and stalled numerous times, after repair I noticed lack of power and stalling until I turned...
2005 GMC Sierra 1500 4.3L No Start, Misfire VIN: 1GTEC14X05
hello and thanks in advance for any help. we have this high mileage truck in our shop and we thought we had fixed when we replaced the dist with good used one. the cam retard is allowed +/- 2 degrees we were unable to get 0 like we wanted but truck ran great a... Trouble codes: P0300 (multiple misfire)
2001 Honda Civic LX 1.7L MIL Lamp on, Evap VIN: 2HGES16591
thanks in advance for any input. got and 01 honda civic lx with an intermittent p1456. smoke test shows no leak ether in the way of smoke or on the flow gauge, last time the vehicel was in the engine light actually turned off during a quick road test. vehicle ... Trouble codes: P1456 (Evap contol system leakage Fuel tank area)
2000 Jaguar XJR 4.0L Poor Idle Quality, Hesitation, Cuts out VIN: SAJDA15B7Y
Hi Guys, Please help me. I have a jag im really stumped on. the vehicle came in not running for a while time unknown. was purchased and turned by mutiple people. Upon first check found main fuel pump bad. Replaced it. Would only start and run a few seconds the...
1992 Jeep Cherokee 4.0L Hesitation VIN: 1J4FJ28S6N
hey guys, 92 4.0 ho. it has a hesitation on accel. replaced distributor. didn't help. check tps and map and both are in spec. i tried to do a cam crank sync but the scanner wont let me it says its running. weird. it does it cold or hot. it usually does it when...
1992 Mercedes-Benz 300E 3.0L Hesitation, Stall VIN: WDBEA30E7N
Hard to start- long crank then will only idles,upon accel engine will stall. If throttle is feathered just right vehicle can barely be moved, sometimes, before stalling out again. Lean pops from intake when trying to accel. Problem goes away once vehicle is wa...
1985 Nissan 300ZX 3.0L Hesitation, Surge VIN: JN1HZ14S7F
Hey there fellow techs. I need some help with this 300ZX. Customer came in complaining of lack of power. Test drove and verified the issue, and concluded that the computer was in "fail-safe" mode. It will not rev up past 2000rpm going up and down with anything... Trouble codes: 23 (Throttle valve switch), 31 (Load Sense)
1997 Nissan Pathfinder LE 3.3L MIL Lamp on VIN: JN8AR05Y1V
The car came for passing the annual emission test but because of check engine light it couldnt pass the code was p 1447 we replaced all the evap sensors under hood but still after 60 miles the mil came on then we replaced the evap canister with the sensor atta... Trouble codes: P1447 (Evap canister purge control valve)
2003 Pontiac Vibe GT 1.8L No Start, Hesitation, Cuts out, Stall VIN: 5Y2SN64L83
I had the car towed in and will not stay running, checked for spar (its good), fuel pressure with in specified value and have code p1693 any one run into this before? Trouble codes: P1693 (Rocker arm actuator stuck off)
2006 Pontiac Grand Prix 3.8L No Start VIN: 2G2WP55261
Car towed to shop, cranks but will not start. Long story short if you unplug the ignition module & plug it back in the car will start & run for aproimatly 2 weeks. At our recomendation the customer did agree to install a GM module & that did not help.
2007 Saturn Vue 3.5L No Start VIN: 5GZCZ63417
This Saturn was towed into our shop with the customer requesting a new starter. I went out to the car, and it cranked over, but would not fire. I connected a Tech 2 to the car, and there was no communication with the PCM. I pulled listed codes, along with a fe... Trouble codes: U2105 (Lost Communication with PCM), U2106 (Lost Communication with TCM), U1016 (Lost Class 2 Communication with PCM)
1997 Suzuki Sidekick JA 1.6L EGR Flow VIN: 2S3TD03V4V
Vehicle came in with PO400 (Exhaust Gas Recirculation) stored in computer memory.I tested vacuum hoses,EGR valve,EGR pressure transducer,EGR solenoid vacuum valve, and EGR solenoid vacuum valve(for system check)O.K. I then test drove vehicle with vacuum gauge ... Trouble codes: P0400 (Exhaust Gas Recirculation Flow)
1992 Toyota Camry XLE 3.0L Unknown VIN: JT2VR13E6N
This Toyota came in with loose, noisy differential bearings, but was shifting and working fine otherwise. We pulled the transmission, and replaced the differential bearings, then went ahead and put in all new clutches, seals, gaskets, oil filter, oil pump, and...
2003 Toyota Prius 1.5L Fuel Gauge VIN: JT2BK12U43
Has anyone seen something relevant? This 2003 Prius came in with the fuel gauge flashing and several combined instrument functions not working--parking brake, door open, maybe another 1 or 2. After replacing combined instrument, same. After doing some trouble ...
2004 Toyota RAV4 2.4L MIL Lamp on VIN: JTEHD20V24
Toyota techs have any of you seen a problem like this as we have twice, both times on 2.4L4, This one is a 04 Rav4 the first one was a 02 Camry. Customer brought it in for the Check Engine and VSC lights being "ON" and no drivability issues, problem is on our ...
2004 Toyota Sienna LE 3.3L abs module VIN: 5TDZA23CX4
original veh. complaint was for hard steering and intermittant dash lights on (abs and vcs). could not communicate w/abs control unit from first veh. visit but did verify very bad binding steering joint. ordered steering joint and scheduled for replacement as ...
2007 Toyota RAV4 3.5L CD Player VIN: JTMBK33V47
Hello and thanks, This CD Player holds 6 CDs. One CD is stuck inside the player. The customer can still put in 5 CDs and play them. Always the same one is stuck inside and will not play or eject from the player. The dealer can remove the player and send it in ...
2006 Volkswagen Passat 2.0T 2.0L Rear Brakes VIN: WVWEK73C96
I had a difficult time replacing the rear brakes on this car. After playing around with the snapon solus scanner i was able to get the electric rear calipers to free up in order to compress the pistons down. i used the rear brake caliper piston turning tool wi...
1989 Volvo 760 GLE 2.8L Cuts out, Stall, Misfire VIN: YV1GX6947K
Car came to us on a flatbed, Owner had replaced the timing chain cover gasket(not chains or guides)After reassembly engine would start and idle fine, when you increase RPM engine will misfire. At approximately 1700 RPM misfire will go away, then at approximate...
2002 Volvo V70 2.4L Keyless Remote Progresses VIN: YW1SW61T24
Vehicle starts to lose keyless remote ,progresses to inop instrument cluster and non shifting trans. After disconnecting batteries functions become nermal for 1 2 weeks please help volvo experts
2005 Volvo S40 T5 2.5L ignition switch VIN: YV1MS68255
hay volvo tech have a question about replacing the ignition switch, do i need to have the ecm or anti theft reprogrammed after? just wanted to know before i do the work thanks

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2004 Cadillac CTS 3.6L Programming New PCM VIN: 1G6DM57794
We were using the tech2 and a midtronix battery conditioner for programming. After quite a few replies we pulled all fuses and relays that would cause a load when we programmed the PCM and using the tech2 remote the programming failed again, so we tryed using ...
2001 Chevrolet Camaro 3.8L OVERDRIVE 4th VIN: 2G1FP22K61
i need to thank to everyone that helped me with this problem,i'm stil working on this car,i removed the valve body,the separator plate and recheked every valve in the v.body,i did not find any problems whatsoever,my next step will be to remove the servo and ch...
2002 Chevrolet Astro 4.3L does not turn off VIN: 1GCDM19X02
First of all... Thank you very much to all that replied. replaced ignition switch and body control module, reflashed bcm and problem went by, bye. The cause was a bad connection right at the ignition switch. Thanks!
2008 Chevrolet Silverado 1500 LT 5.3L mode control and air temp VIN: 1GCEK14098
sorry it took me so long to close on this one but i keept geting pulled off of the truck to work on other stuff that they say is more important any way it ened up being out in the fuse panel in the engine compartment this thing was so interminted hard to pin d...
1985 Chrysler Laser XE 2.2L Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy VIN: 1C3BA54E3F
thanks for all the replies guys! WOW 45 replies! Thank you very much! Most of you had very good ideas! The problem was the head!! Timing was what most of you guys told me to check but I had checked the timing almost 10 times. I've checked the sprockets and ke...
2004 Chrysler PT Cruiser 2.4L No Start VIN: 3C4FY48B54
First of all, let me apologize for a delay in posting this fix. Customer was out of town and couldn't get a go-ahead for further repairs. Fix turned out to be the PCM and he opted for a used unit. During testing, I concentrated on the Coil Control, since prel...
2006 Chrysler Pacifica Touring 3.5L EVAP System VIN: 2A8GM68426
Thanks for all the replies. all exellent and informative. Chrysler evap systems are rough. Anyway the customer wont spend anymore money on it for now and let alone diag. time. Thanks again. Trouble codes: P0457.
1997 Dodge Intrepid ES 3.5L 2-3 shift VIN: 2B3HD46F0V
I received 13 replies!!! All of them were useful and knowledgeable!! My specific question was ansewered by many. that being, is it normal for the input rpm to drop to 0 at idle in any gear. And yes, it is. Obviously, I'm not much of a trans. guy to have ha...
1998 Dodge Grand Caravan SE 3.3L button lights climate control VIN: 1B4GP44R8W
thank you iatn members for the accurate replies, by re-calibrating the ccm turned off the flashing lights, and i learned something new, thats always a good day.
2007 Dodge Caliber SXT 2.0L fuse 34 abs valve supply voltage VIN: 1B3HB48B67
Sorry for the delay folks. Vehicle has yet to return for repair. Ultimately, with the integrated abs unit's harness disconnected, the vehicle drove for ten miles w/ no blown fuses. Again, reconnected the control unit and blew the fuse within half of a mile @ 2...
2004 Ford Freestar SE 3.9L noise VIN: 2FMDA51614
Thanks for the replies. To answer my responders- the evap dtc was caused by the original vapor management valve not allowing enough purge flow. Since replacing vmv with factory new, the small leak dtc did not return. The factory vmv was noisy and very loud ins...
2005 Ford Crown Victoria LX Sport 4.6L keep alive memory VIN: 2FAFP74W75
well we all know what its like to fix vehicles these days , on several occasions i have had intermitant codes and no viable answer as to what was the cause ,, this is one of those vehicles ,, as you know these are famous for bad light control modules ,,...
2006 Ford F-150 XLT 5.4L valve timing VIN: 1FTPW12506
well sorry every one I could not find any of the tools the manuel showed So I was a little afraid to jump in I had part numbers for the tools But even on line I could not find them I have one last question though Is there a locator pin or key way on the cam ...
2006 Honda Ridgeline RT 3.5L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 2HJYK16546
2000 Jeep Cherokee Sport 4.0L Cuts out, Misfire VIN: 1J4FF48S9Y
Sorry it took so long to get back and close this post but the customer had not decided what he wanted to do. After waiting for weeks to decide he took it to a friend of his father, a laid off Chrysler tech, to have it checked out. If I hear back from him I wil... Trouble codes: P0351 (Coil 1 Primary Problem), P0352 (Coil 2 Primary Problem), P0353 (Coil 3 Primary Problem), P1391 (Cam or Crank sensor intermittant).
2000 Jeep Grand Cherokee Limited 4.0L Jeep with lots of problems pls help!! VIN: 1J4GW58S1Y
Turned out that the interior fuse block/BCM (which are one and the same) experienced water intrusion at one point, and caused problems related to this. For a time the vehicle still would not start, but ran through the fuses again and found that the PCM fuse i...
2000 Mercedes-Benz S430 4.3L Compressor VIN: WDBNG70J1Y
Thanks to those of you who replied but the owner decided he didn't need the a/c to work now that it's getting colder and he has picked up the vehicle for now to drive through the winter month's. If he returns in the spring I will post any further repairs made.
2009 Mercedes-Benz C300 Luxury 3.0L Marker Light VIN: WDDGF54X69
Thanks to all who replied. Vehicle was sent to dealer, and rear SAM was replaced. All is well. Thanks again.
2000 Mercury Mystique GS 2.5L No Start, Cuts out, MIL Lamp on VIN: IMEFM66L6Y
I finally have this Mistake fixed! Here is what I tried since my last update. Thinking maybe a voltage spike was causing the problem I disconnected or removed the fuse from the following, Power windows, power door locks, power moon roof, blower motor, and I ev... Trouble codes: B1681 (PATs signal not received), B1601 (PATs incorrect key), P1540 (IAC Circut), P1520 (Intake runner Circut), P0171 (Lean bank 1), P0174 (Lean bank 2).
2005 Nissan Armada SE Off-Road 5.6L No Start
This vehicle is FIXED!!! It turned out to be shorted wires in the EGI harness. Upon pulling out the old harness to inspect, the white wire going to the EGI fuse did not feel right. I stripped back some of the wiring and found it rusted!!! It looks like moistur... Trouble codes: U1000 (Can Communication Error Store In ECM).
1992 Toyota Cressida 3.0L remote alarm system VIN: JT2MX83E3N
No one knows how to reset this alarm for a new remote, period. The replies were just generic guesswork, so I took the entire dash apart and found all the alarm modules, which were toyota numbers and parts, but had been installed at the dealer like the research...
2000 Toyota 4Runner SR5 3.4L Hesitation, Surge, Misfire VIN: JT3HN86R9Y
Thanks to all who replied, a new TPS seems to have fixed it, hopefully it lasts for a while, it's about the fourth one it's had. Trouble codes: P0120 (TPS Circuit A).
2008 Toyota Camry 2.4L ride quality VIN: 4T1BE46K98
Replaced axles and that took care of vibe in slight turns at 45,the other vibration at 75-80 mph from right rear,did new bearing per service bulletin,no improvement,Has new michelins.Does not matter what tires I have on this always seems to have a small almost...
2005 Volkswagen Passat GL TDI 2.0L Misfire VIN: WVWAE63B25
we had the guy switch back to regular diesel and he has not had any issues since. He was making his own, and it seems uncontroled quality is a problem with bio diesel. Trouble codes: P1261.
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