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Prev Professional Automotive Repair Technical Discussions for May 30, 2012
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2001 Audi A6 Quattro 2.7L ignition,timing VIN: WAUED64B21
We replaced timing belt, seals, water pump ,cam adjuster seals. Did the whole procedure step by step. Started the car and got a p0346 cam sensor range proformance code. We found out that the cam adjuster on the driver side bank had some slack on it and the cha...
2000 BMW 328i 2.8L Stall VIN: WBAAM5342Y
Hello BMW good samaritans, here is the deal Customer complains that the engine will shot off on decel once a month or so when getting off the freeway. The vehicle idles ok when at the shop, customer reports that sometimes it surges slightly. We tested with gt1...
2003 BMW 745Li 4.4L No Start, MIL Lamp on VIN: WBAGN63493
We have a BMW 745Li 4.4 V8 that cranks but does not start. Interrogated fault memory with autologic scanner, found codes in the DME (Eng module) & EGS (Trans module. DME codes: 2760 secondary air system, bank 1..2761 secondary air system, bank 2..281E Variable... Trouble codes: 4F56, 5140 (No message from Engine Management), 507D, 281E, 2760 (secondary air system bank 1), 2761 (secondary air system bank 2)
2006 BMW X5 3.0i 3.0L Brake pedal VIN: 5UXFA13506
Hello everyone. This BMW has a low/soft brake pedal. I have spent all day with this car and nothing seems to work. I replaced the brake pads only, front and rear, as well as the right front CV axle. I was able to use the Alltell scanner to activate the bleed p...
1999 Buick Park Avenue 3.8L Circuit 1807
Vehicle presented with intermittent gauge operation, warning lights, and climate control operation. With use of Tech 2, attempted to communicate w/ BCM. No communication obtained. Tested power and ground to all circuits-okay. Removed BCM and found burnt spot t...
1999 Cadillac Eldorado ETC 4.6L a/c not turning on VIN: 1G6ET1299X
After 60 days a "low refrigerent press a/c off" appeared on the instrument located the leak at the low pressure switch replaced with correct cadillac part and evaculated .8 lbs r-134 vacuumed the system 10 minutes reinstalled 2 lbs r-134 and (now) how do I res...
2004 Cadillac SRX 3.6L Spark Plug Tube VIN: 1GYEE63754
We got this cad. In that has oil in the #4 spark plug tube and the seal in the valve cover is not leaking. Is it possible that the tube is leaking at the bottom. Thank you for any help.
2005 Cadillac STS 4.6L engine mount VIN: 1G6DC67AX5
I was wondering if there is a short cut to replacing the l/s engine mount on this STS. Customer was quoted a time of 2.1hrs to replace the takes that long to pull exhaust manifold.just wondering if there is a way around manifold removal
1998 Chevrolet K3500 Cheyenne 5.7L hydrolics VIN: 1GCHK34R5W
I have this chevy p.u. with a strange clutch pedal. just when u think u saw everything with a clutch something new pops up. truck came in with no pedal.throughout bearing froze up and leaking fluid as fast as u put it in. this truck spends most of its time in ...
2000 Chevrolet Astro 4.3L Engine VIN: 1GNDM19W8Y
Good morning all, i have this 2000 astro , 4.3 eng. and customer went on vacation ( 7 hr drive one way) the engine would sputter and lose power on hard acceleration or going up hill, stopped and put some fuel cleaner in tank and thought it toke care of it but ...
2004 Chevrolet Cavalier 2.2L Hesitation, Surge, Cuts out, Poor Fuel Economy, MIL Lamp on VIN: 1G1JC52F64
Car came in with previous problem hesitation and stalling at stops very poor acceleration. Customer was at a pep boys over the weekend with p0122 they replaced the tps and sent her on her way. Same problem exits she brought it here.The same code exists as well... Trouble codes: P0122
2008 Chevrolet Silverado 2500 HD WT 6.0L Chmsl VIN: 1GCHK29K98
CHMSL stays on at all times. Mitchell shows a relay. Fuse box key does not. Pulled relays one by one and light stays on. CHMLS fuse that Mitchell shows after relay has power at all times. Brake light switch is working fine. Any help you can give. Thanks,
2001 Chrysler Sebring LXi 3.0L MIL Lamp on VIN: 4C3AG52H21
Customer brought car in for check engine light on code P0401 and we checked all valves and replace all components. Freeze frame data rpm 1445, ect 205*,mph 52, short term fuel trim bank 1 0.0% long term 0.8%, short term fuel trim bank 2 0.0% long term 2.3% and... Trouble codes: P0401 (insufficient egr flow detected)
2007 Chrysler Sebring Touring 2.4L Stall VIN: 1C3LC56K97
This car stalls imediately upon start up. If you play with gas pedal, the engine will run fine & even seems to run & rev up real good. I removed and actuated manually with power probe the 2 camshaft solenoids b1 & b2. They both moved freely. P0017 returns imme... Trouble codes: P0017 (Camshaft-crankshaft timing misalignment b1/s2), P0300 (Multible cylinder misfire), P1607 (Pcm internal shut down timer slowly rationality)
1998 Dodge Grand Caravan SE 3.3L Steering VIN: 1B4GP44R6W
We first flushed out the system due fluid contaminated looked like snot. After the flush problem still present. Replaced rack and pinion, pump, pulley, pressure line, return line as per tech help(recommendation due to contamination). Checked universal on the c...
1999 Dodge Dakota 3.9L Misfire, MIL Lamp on VIN: 1B7GL22X9X
this vehicle has never acted up on me but the customer always says he is cruising on the highway at 65-7 and then it starts to misfire, he bought a code reader and it always shows p0301,p0302,p0303.. i have changed all plugs, wires cap and rotor and crank sens... Trouble codes: P0301, P0302, P0303
2003 Dodge Durango Sport 4.7L air temp VIN: 1D4HR38N93
Hello everyone and thanks in advance for your help.This vehicle has pressures of 45 and 175.Blowing 66 degrees out of all vents.90 degree ambient temp.I can't figure out why i can't temp down.lines are cold going in to evaporator however line going to rear is ...
1966 Ford Galaxie 500 6.4L exhaust VIN: 5N66Z16125
This is for old Ford gurus.I have a 66 Galaxie brought to me for exhaust leaks.Leaking between manifolds and head.Customer says he has had repaired several times in last couple of years.All bolts were tight.Had gaskets between manifold and head.First,did these...
1985 Ford F-150 XL 4.9L MIL Lamp on VIN: 1FTEF14YXF
vehicle wouldnt pass smog, repaired emission leaks, went too set timing, cannot find timing marks with timing light disconnect single lead wire at distributor, ck out harmonic balancer with new one timing marks look to line up with original balancer what am i ...
1987 Ford F-150 Custom 4.9L No Start VIN: 1F1EF15Y8H
This customer came in a couple of weeks ago complaining of a no start. He had also mentioned that the vehicle had caught fire and died. I did not see any evidence of a fire but from what he was telling me it was in the area of the cat. The truck cranks fine, a...
2003 Ford Escape XLT 3.0L Alternator VIN: 1FMCU93183
Hi and thanks everyone for your help. We have installed five alternators in this escape in the last 1.5 years, including a new one from dealer. They work fine for a few months, than battery light comes on and charging system does not work. Confirmed battery vo...
2005 Ford F-450 Super Duty Lariat 6.0L No Start VIN: 1FDXX47P25
Truck came in a week ago with no start hot. Air checked system. IPR Seemed to stick when hot. Explained to customer about all the common failures. Customer opted for high pressure pump and IPR. Along with new feed tubes to the high pressure rails. Ran fine del...
2007 Ford E-350 Super Duty 6.0L Starting VIN: 1FTSS34P97
i have a e350 that blows the 30 amp fuse under hood fuse box f212 witch powers up pcm key on ficm glow plug controller fuel pump relay cooling fan maf a/c clutch. vehicle was towed in last week for no start found 30a f21 fuse blown test found short to ground a...
2008 Ford F-150 Lariat 5.4L Vct VIN: 1FTPX145X8
I have a 2008 F-150 5.4lt 3valve engine. Intermitently runs rough along w/ engine noise from VCT system. DTC P0022 retrieved. I have replaced the cam phasers as a repair attempt. I inspected and cleaned valve body for vct solenoids. I've tested for a failed so...
2003 GMC Envoy SLE 4.2L Noise
Car came in with a bad hum noise just like a wheel bearing replaced bearing and its still there driving me nuts sound starts at about 20 mph and does not matter if in 2 or 4wheel drive thanx everyone for your help
1998 Honda Civic LX 1.6L System VIN: 1HGEJ6573W
The original complaint was that cruising at highway speed with the air on the car would speed up and slow down and this would coincide with the compressor cycling. Put gauges on and ran; at idle pressures were normal L: 40 H: 225 temp from register 40 @ 1500 ...
2003 Honda Accord EX 3.0L Monitors VIN: 1HGCM66523
Car failed new york inspection due to monitors not set. Drove car all monitor set, turned off ignition and lost all memory. Back to square one. I have checked all fuses and they are good. I am having trouble find the keep alive memory circuit in the wiring dia...
1998 Infiniti Q45 4.1L Ignition Switch VIN: JNKBY31A5W
This starts and drives just fine. The problem is the key will not come back out of the ignition switch. Was wondering if anyone has ran into this before on these vehicles? Thanks
2000 Jaguar S-Type 3.0L wipers VIN: SAJDA01C2Y
car came in with wipers on wont shut off with car running if you shut car off they will stop after 3rd cycle but if car is not running and key in run position they perform normally ant help would be greatly appreciated
2004 Jeep Grand Cherokee Laredo 4.0L sway/ shift VIN: 1J4GW48S74
road test jeep on hard excell/ decell feel shift in jeep . like rear end is moving.all is tight front and rear.
2004 Jeep Grand Cherokee Laredo 4.7L drivability VIN: 1J8GW48N84
Vehicle came to me running but a nasty rattle in the engine. Codes all down the right side p0352-p0358 primary coil circuts. It actually runs and accelerates but sounds like its gonna sling the valves thru the head. I pulled the covers and the timing marks loo...
2006 Jeep Liberty Sport 3.7L Unknown VIN: 1J4GL48K76
Thanks in advance. I have this 06 liberty in. I replaced brakes ( calipers, rotors, and pads), even the emergency brake shoes. It was fine for 2 weeks now there is like a binding when stoping hard. Have not found fault with any new parts as I have changed ever...
2003 Land Rover Discovery SE 4.6L Unknown VIN: SALTY16413
hey guys customer came in with a complaint of the truck jerked into gear then the M and S light came on the D light was flashing and the security light came on ran diag no code and cant duplicate symptoms any ideas or thoughts would be appreciated
2004 Lincoln Aviator 4.6L Cruise Control VIN: 5LMEU88H24
Techs i have a lincoln aviator where cruise control at times does not work.using ids i did a switch test and works well.the cruise light does not come on when you try the self test.i ohm tested the servo pins and they passed.checked the brake pressure switch a...
1991 Mazda Miata 1.6L No Start VIN: JM1NA3518M
Need some help with this one. Although I service a few Miata's, this is the first one I have ever had that actually has a problem. Car sat all winter, owner connected battery and car would not start. When I got it the battery terminals were loose, and I suspe...
2001 Mercedes-Benz C240 2.6L Interior VIN: WDBRF61J61
Hello fellow techs, This C240 was purchased by my employer. He did some cosmetic repairs throughout and replaced the srs module due to srs light being on, among other various repairs. The battery was going dead and I was asked to repair. I discovered a 1 amp...
2011 Mercedes-Benz C250 2.5L temp sensor VIN: WDDFH3EB6B
I am sorry for the incorrect info, but the B200 model is not recognized by ALL DATA nor any other service information. What I have is a 2011 Mercedez B200 with the check engine lamp on after a collision. I am able to scan it and retrieved code 0071 (I think) c...
2000 Nissan Maxima GLE 3.0L idle speed VIN: JN1CA31D5Y
Hi techs need some help with a 2000 nissan maxima that came to shop with multiple codes such as P0740, P0505, P0403, P1131 so fare we focused on P0403 related to idle control system malfunction due to up and down RPM's so we checked for vacuum leaks and found ...
2001 Nissan Altima GXE 2.4L Poor Idle Quality, Stall, MIL Lamp on VIN: 1N4DL01DX1
Car came in with an erratic idle condition. It would idle about 1000 rpm, slowly decrease to about 400 rpm, idle a little rough, then increase back to 1000 rpm. but it didn't stall. P0304 (#4 misfire) was pending but not current. After replacing intake gaskets... Trouble codes: P0300 (Multiple random cylinder misfire)
2001 Nissan Sentra GXE 1.8L Hesitation, MIL Lamp on VIN: 3N1CB51D71
Hey everyone, another stumper here lol. Check engine light is the main problem with P0171 but I have noiticed a power loss when moving the car cold intermittently like it is running out of fuel. Tested fuel pressure, within specs. Tested O2 sensors B1 and B2 i... Trouble codes: P0171 (System lean B1S1)
2007 Nissan Quest SL 3.5L left cinch motor VIN: 5N1BV28U17
Hi guys, this got sort of dumped in my lap... already has had all moving parts changed in sliding door for the door not cinching in correctly most of the time. Previous tech replaced the latch assembly, the cinch motor assembly, the main door motor assembly, a...
2005 Toyota Sienna XLE 3.3L compressor clutch VIN: 5TDZA22C45
Hi, this van came in with 12.9 volts to clutch coil but would'nt ingage clutch.I replaced ctutch assemble using toyota part,coil was replaced also.note the clutch had broken at rubber.All looked good,customer drove vehicle about 100 miles a/c quit working. I h...
2002 Volkswagen Passat GLS 1.8L noise VIN: WVWPD63B62
have a whistle noise on boost, appears to be coming from turbo area near waste gate, have removed all hoses and checked for leaks, what am i missing, going crazy on this one. any vw techs can you help me!!!
2003 Volkswagen Jetta GLS 1.8L Timing Chain VIN: 3VWSE69M43
Has anyone seen this before? and any ideas what would cause this? This is a timing belt motor with slave chain to drive the cams. The cut is directly above the tensioner and its about 2" long. Customer did run the car very low on oil and and topped it off be...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1990 Cadillac Seville 4.5L MIL Lamp on VIN: 1G6KS5333L
Idle relearn procedure fixed it. I feel unbelievably stupid but hey thanks guys. This thing has had me chasing my tail for a while now. I know better than this. I drove it this morning and all is well. The prodedure I followed is... Inspect the throttle li... Trouble codes: E052 (ECM memory reset).
2002 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK231X2
customer driving truck have not got it back in. going with a new fuel pressure regulator when it comes back. thanks to all that responded.
2007 Chevrolet Impala LT 3.5L cooling VIN: 2G1WT58K37
Yup, you guys were right the coolant temp sensor was occasionally dropping out making the gauge reading drop to zero. We installed a new sensor and it has been good for two weeks now. The PCM programming had evidently called for no AC operation because of the ...
2003 Chrysler Town & Country (Van) LX 3.8L No Start VIN: 2C4GP44L33
Thank you for all the responses. It turns out that the fix for this vehicle was the fuel pump assembly. Installed complete fuel pump assembly was installed and vehicle is operating correctly. Thanks again... Trouble codes: P0171.
1998 Ford F-150 XL 4.2L Engine VIN: 2FTZF1720W
Sorry, Forgot to close this. I could not find enought positive support to use this engine, Qouted a reman engine and waiting for new funding to replace it. Thank's for all the input.
2003 Ford F-150 Lariat 5.4L Poor Idle Quality, Surge, bad spark knock VIN: 1FTRX18L93
We are pretty sure it was a combination of poor quality gas, and carbon. Truck runs better than it has in a long time after a thorough carbon and injector cleaning. We also installed some fresh gasoline. Sometimes the most basic problems are the ones that make...
2005 Hyundai Elantra GLS 2.0L Poor Idle Quality, MIL Lamp on VIN: KMHDN46D15
I want to thank Jim for the link count -exactly what we needed and don for the oem info. As I said this engine had vvt and there was no mark on the exhaust cam gear. the old chain had worn off the colored links and the new chain had 4 links between marks!SO he... Trouble codes: P0016.
2008 Infiniti G35 3.5L Starting
Thanks for all the replyes,the problem was the engine control module,i finally found a used computer and installes it on the car and after programing everything was ok,battery voltage came back to the normal reading on scan tool and had no more problem.Thanks ...
2005 Jaguar XJ8 4.2L compressor VIN: SAJWA79C35
Hi pros. thank you for all the help. the fix is servicing displacement control solenoid in back of compressor, it was binding. the system works like this,with the desires from driver, the module processes infos and it controls the variable displacement soleno...
2002 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1J4GX48S52
Thank you all for your replies. I took the new PCM back to Autocomp and they told me it had a bad driver. I got another one and problem solved. The only thing I could think of is that they might of given me a defective PCM or I had a bad coil that was zapping ... Trouble codes: P0353.
2002 Kia Sportage 2.0L Driveline VIN: KNDJB723X2
2005 Nissan Titan LE 5.6L None VIN: 1N6AA07B25
1981 Porsche 924 Turbo 2.0L No Start VIN: WP0AA0934B
Thanks for all the replies.We have scoped the flywheel sensor and found the sensor to be no good.We belive the flywheel sensor will solve the porblem. We are however having a hard time finding a new sensor. Thanks for all your help, Steve
2003 Subaru Forester X 2.5L codePO304 VIN: JF1SG63683
ignition Coils problem Thanks all of you for your help
1987 Toyota Pickup 2.4L Fuel Leak VIN: JT4RN50R5H
Thanks to John from Kansas. He had the same problem. The return line and the vapor line had been switched at the tank. Due to the dirt and spider webs I did not see any recent work done at the tank but the customer only owned the vehicle a short time. When we ...
2000 Volvo S80 2.9 2.9L Poor Idle Quality, Misfire VIN: YV1TS94D4Y
Hello, Thank you - each man who took the time to reply back to me concerning this Volvo power plant. There were good replies. I dug deeper into the pdf from Matthews Volvo Site And found like a fellow said ] That the ground connection for the injectors w...
2001 Volvo V70 X/C 2.4L rear end VIN: YV1SZ58D61
I have narrowed the problem down to the viscous coupler, however the customer doesn't want to spend any more money on the vehicle, so unfortunately I won't know if that would have fixed the clunk or not. the excessive play was in the rear differential and the ...
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