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Prev Professional Automotive Repair Technical Discussions for April 19, 2012
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2007 Audi A6 Quattro 3.2L Fuel Rail VIN: WAUDH74F47
Hey Everyone, we have this 2007 A6 with a 3.2 FSI engine, when the car is at idle it has a very noticeable knocking noise under the intake manifold. When we use a stethoscope the knocking noise is clearly coming from the fuel rail that goes under the intake ma...
2000 BMW 528i 2.8L abs VIN: WBADP6341Y
I think I have a failing ABS module here, but would like confirmation as this does not seem to be the common mode of failure. I'm getting two codes in the ABS system: 51 DSC Pressure sensor, line and an intermittent brake light switch implausability code. ...
2006 Cadillac CTS 2.8L No Start VIN: 1G6DM57T96
VEHICLE CAME IN WITH A NO START CONDITION AND KEY NOT BEING ABLE TO BE REMOVED. had a u0100 loss of communication code. HAD NO COMMUNICATION WITH ECM. using tech2 pinged the modules. it looks as if all modules are present except the ecm. REPLACED ECM AND VEHIC... Trouble codes: U0100 (Loss communication to ecm)
1997 Chevrolet K1500 Cheyenne 5.7L MIL Lamp on VIN: 2GCEK19R6V
I checked the cam retard value with my scanner at +45 degrees(?).I made a few slight adjustments and could not get it below +29. I pulled the distributor and adjusted it a tooth over .I read it at + 13 degrees. I adjusted it 3 times minutely and it never chang... Trouble codes: P1345
2001 Chevrolet S10 4.3L Hesitation, Misfire, MIL Lamp on VIN: 1GCCT19W01
this is an 01 s10 4x4 we recently installed a 350 vortec engine (r) code engine was out of 99 van. Engine is new with a comp cam 08-501-8. The intake distributor injection and all are factory vortec parts. crank sensor is for a 350. computer is flashed for an ... Trouble codes: P1345
2004 Chevrolet Colorado 3.5L Air Bag Light
Keeps setting B0083. Did I miss something, is there a cause not covered in Mitchell or All Data?
2006 Chevrolet Impala LT 3.5L starter VIN: 2G1WT55K06
Hey guys, I have an Impala that is throwing code P1682 (Delayed or extended cranking DTC). What is happening is the key is put in the ignition and turned, nothing happens. All lights and such work and come on but no crank, no noise, no nothing. Sometimes it wi...
2006 Chevrolet C4500 Kodiak C4U042 6.6L No Start VIN: 1GDE4C1296
customer bought truck at auction. drove sev times and seviced. since service he says that it has a hard time starting after he drives it. cranks for a while then starts. anyway we smell fuel so we pull doghouse and see a couple turbo hold down bolts are backed... Trouble codes: P0097, P0230, P0463
2007 Chevrolet Tahoe LTZ 5.3L traction control VIN: 1GNFC13047
the engine was replaced about a month a go. after the customer took his truck he was mentioning about the traction service light being on. it will come on after driving in atleast a minute on the road. i looked up info on regards to this problem and something ...
2001 Dodge Dakota 3.9L clutch VIN: 1B7FL26X31
replaced clutch pressure plate throwout bearing slave cylinder and clutch mastercylinder and now i cant get a good pedal on the clutch. ive bled and bled and bled but cant get good pedal. will not go in gear. please help!
2007 Dodge Ram 1500 Truck TRX4 5.7L Misfire, MIL Lamp on VIN: 1D7HU18237
Truck came in with with misfire and 'popping sound'. Scanned and found p1521-incorect oil viscosity and p0306-cyl 6 misfire. Changed oil with 5w-20 and added a flush. Could not get truck to misfire and told cust. to try it. Customer came back with same codes a... Trouble codes: P1521 (Incorrect oil viscosity), P0306 (Cyl 6 misfire)
2008 Dodge Ram 1500 Truck SXT 5.7L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1D7HA18298
SES p0339 ckp sensor intermittent, cuts out at times, replaced ckp & cmp due to cost (under $25 for Mopar parts). Watching ckp & cmp on lab scope do not see either drop out, but did notice that when checking 5v reference voltage stay at sensor for about 4 to 5... Trouble codes: P0339
2008 Dodge Ram 1500 Truck SXT 5.7L Misfire VIN: 1D7HA18298
I had another request open and something happened and could not respond to it. The truck sometimes runs great until you accelerate little hard then cuts out, sometimes it does a random misfire at start up Trouble codes: P0300, P0339
1992 Ford Mustang GT 5.0L Stall
This is one of those between jobs projects and educational tool. Engine starts good, run a few seconds, then stalls. Sometimes, not often, it will take off and run fine.KOEO test shows no codes. Have not been able to perform KOER test.Vehicle will run on carb ...
1993 Ford Aerostar Eddie Bauer 4.0L Excessive Emissions, Poor Idle Quality VIN: 1FMDA41X1P
with the information that I have gathered, it seems that the vehicle has a vacuum leak. Is there anything I should keep in mind because the heads look like they have been replace. Trouble codes: 538 (cylinder balance test failed)
1996 Ford Windstar GL 3.8L Poor Idle Quality VIN: 2FMDA5143T
Idles to 2100rpm for 10 seconds than returns to 850. Will idle up to 1200 when put in gear. Oviously not checking for dirrect cause, can only asume input telling ecm to change idle. Been working on and of with customer for two months. Thanks in advance.
1997 Ford Taurus GL 3.0L converter, 2-3 shift VIN: 1FALP52U5V
Delayed shifting between gears. RPM raises to 3,000-4,000 then sudden shifting with hard jerk.
1999 Ford Ranger XL 3.0L Slighty high idle VIN: 1FTYR10V7X
Complaint, when coming to a stop eng seems to be going to fast . Idle running at 900 rpm in gear. Spec is 700. Throttle body dirty, cleaned, no change. Ran test per all data and identifix. Unpluged iac idle droped but not enough.pluged off ports in throttle bo... Trouble codes: P1504 (Iac circuit fault)
2006 Ford F-250 Super Duty XLT 6.0L Excessive Emissions, Misfire VIN: 1FTSW21P56
this f250 came in with a misfire and smoking grey smoke.pulled codes p0269 and p0611.i am just wondering if the ficm were bad would it cause the other code?i dont work on alot of these so any help would be appreciated.thank you Trouble codes: P0269, P0611
2007 Ford F-150 XLT 5.4L Hesitation VIN: 1FTPW14507
This truck had us all thinking it had a plugged Cat. Starts fine, accelerates great when cold but after it warms just a little it really looses power on acceleration. We pulled the Cats and it ran the same. MIL is off but found a pending code of P2197, O2 sens... Trouble codes: P2197 (O2 pegged low)
2007 Honda Pilot EX 3.5L oil pump housing VIN: 5FNYF18447
Hello again this one is the wifes and I am embaressed to say I broke the oil pump changing the oil pan. Missed a bolt removing the pan and cracked it. Have new pan and pump assembly coming from Honda. Just wanted to know if there was anything special about cha...
2007 Honda Civic LX 1.8L compressor VIN: 2HGFA16587
A/C compressor is inop- Can trigger compressor using Snap-on and gets cold but does not cycle on its own. All fuses are Ok. Removed dash to check heater control- Could not find a specific output from heater control but replaced it per previous repair suggestio...
2009 Honda Civic EX 1.8L right rear VIN: 2HGFA16969
temp is equel on front wich makes me belive it should be equel on rear is 30 deg a big difference? has any one had a similar situation with a civic ?
2002 Hummer H1 6.5L Accessories VIN: 137FA84322
Need help on this h1.ignition key do not turn to off position.unable to remove key. It has shiftinterlock solenoid. Bulit in the power at the solenoid. Does have good gnd. Other red and brown wire show gnd.try to give power nothing happens.i do not ha...
2002 Infiniti Q45 4.5L ignition switch VIN: JNKBF01A02
Hi all I have this Q45 with seems to have a Immobilizer System problem. This has the electronic key with chip inside. Once i insert the key the security light comes on, the ignition will not turn and the steering wheel is locked. I have a launch scan tool to w...
2003 Infiniti G35 3.5L slip and vdc lights come on VIN: JNKCV54E63
after vehicles rack and pinion was replaced and steering angle sensor was reset, as you slow down the slip light and vdc lights come on and it feels like the abs is being activated, scanned computer and only code pulled out was C1145-YAW rate sensor circuit fa...
2002 Jeep Grand Cherokee Laredo 4.0L Overdrive Shift VIN: 1J4GW48S82
This vehicle will not shift into overdrive. The OD light comes on and the switch that controls it is working normally. One thing to note is while in third gear and letting off the throttle, the torque converter is direct drive. No coast at all. It had a code P...
2003 Lexus GS300 3.0L Intake VVT VIN: JT8BD69S53
Pulled the cam gears to change seals and cannot find any information on where to set the camshaft in relation to the VVT pulley. I searched the archives and google, Alldata and Mitchell. They all say line up the dots to the shield behind the pulleys but no one...
2002 Lincoln LS 3.0L No Start VIN: 1LNHM86S02
i pulled cluster to replace airbag light reinstalled vehicle would not start got the two codes listed about i have ids replaced antenna and reprogramed keys also reprogramed as if i had replaced cluster i get same codes no matter what i do this is driving me c... Trouble codes: B1681, P1260
1997 Mazda Millenia 2.5L Egr VIN: JM1TA2215V
What exactly, is the egr "boost" circut and what should i be pnpointt testing?
2001 Mercedes-Benz S55 AMG 5.5L mirror VIN: WDBNG73J21
This vehicle came in with cluster dead short, Could not communicate with cluster, Rear Sam, Left Sam, or the Right Sam units, once the cluster was unhooked the short was gone and had communication with all modules, sent cluster out for repair, installed and cl...
2003 Nissan Pathfinder SE 3.5L no start VIN: JN8DR09Y83
all you nissan guys I need help please, I have checked crank, and cam sensors with scope look good. the problem is that times when the vehicle wont start it has injector pulse but no spark. it does have cranking rpm on data, also have power to coils. thanks so... Trouble codes: P0021
2005 Nissan Frontier LE 4.0L MIL Lamp on VIN: 1N6AD07W55
Hi everyone, I sure could use your help again. Code P1283 continues to set. LTFT1 reads 2.3% at idle, LTFT2 reads 6.2% at idle.This code sets when engine is at operating temperature and at idle. I cleaned and tested the MAF Sensor, smoke tested engine for vacu... Trouble codes: P1283 (Air Fuel Ratio Sensor 1 Lean Shift monitoring Bank 2)
2007 Pontiac G6 2.4L Column? VIN: 1G2ZG58B27
Hi guys, have never aske for help , so this is new to me. We have pontiac g6 that has a clunk noise in the steering while setting still and turning the wheel or at low speeds. Have replaces the column, tried 2 intermediate shafts and evenreplaced the rack and ...
1999 Saturn SL2 1.9L Mechanical VIN: 1G8ZJ5275X
HI I have a 99 saturn SL2 with a rubbing noise only when the steering wheel is turned all the way to the left or right stop it sound like metal on metal and is a rotating nOise, the calipers with brackets and rotors have been replaced also has new wheel bearin...
2007 Saturn Vue 2.2L trans VIN: 5GZCZ33D47
my wife thought the truck behind her hit her(i wish) just kidding at stoplight it felt like she was rearended but wasnt im a chrysler tech by trade haha know the symptom bump stop in 604(slips oh 4)well is this something any gm techs have seen in trans maybe ?...
1992 Toyota Camry LE 2.2L Poor Idle Quality, Misfire
Intermitantly this toilet will missfire @ hot idle but run fine under a load. It appears to lose spark occasionally at all cylinders. This came to me after the above parts where replaced and then the old parts were put back in. I was looking at the ignitor but...
2005 Toyota Prius 1.5L Master Warning VIN: JTDKB20U95
This car has me pulling my hair out, Im hoping some one can help. The car came in with the master warning indicator on and on the MFD the warning symbol for "Return to Dealer" or something along those lines. Customer stated that he thought it was the 12 volt b... Trouble codes: B1400 (Normal)
1997 Volkswagen Passat GLX 2.8L Ignition Switch VIN: WVWEE83A7V
Ignition switch failure. Initial replacement switch lasted for a few months. Second replacement switch lasted sbout 3 weeks. Aftermarket swiches were used both times. Have not found any shorted wires. There is an aftermarket alarm system tied into the harness,...
2001 Volkswagen Beetle GL 2.0L enguagement VIN: 3VWBK21C51
god morning to all and a special good morning to all the vw techs. thank you for any assistance with this vw. this beetle came in with a complaint of slipping when accelurating from a stop. i noticed on the test drive that every time a came to a stop it would ...
1998 Volvo S90 2.9L Cyl #6 VIN: YV1KS9600W
See Above history. Since I got this car back together it now has a dead miss on cyl 6. No compression. During leak down test found 100% into exhaust. Is it possible that the # 6 lifters are pumped completly up? All other cylinders are not affected. Am I possib...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 Audi A4 Quattro 1.8L Starting VIN: WAUDC28D7Y
thank you everyone for the good advice, after doing voltage drop test come to find out it was a bad battery ground cable couldnt see it, it was bad internally...thanks again
2000 Audi A6 Quattro 2.8L timing belt tension VIN: WAUEH54B0Y
Thanks to all for the replies. A special thanks to Don from OK. I even got a call from Don explaining what to do. The timing belt tensioner/dampner was bleeding down, not keeping enough pressure on the belt allowing the timing belt to come loose and set codes ...
2004 Audi S4 Avant 4.2L Misfire VIN: WAUPL68E54
Thanks for all the replies on this one. This may or may not be fixed at this point. We ended up selling and injector and intake cleaning service on this one. I was leaning toward sticking valves but could not always verify concern. After doing the service ... Trouble codes: P0300, P0302, P0301, P0305, P0307.
2003 BMW X5 4.4i 4.4L Level control VIN: 5UXFB33513
After running system diagnostics, and clearing all fault codes the vehicle suspension system now functions correctly. We made no physical repair other than a new battery. We are still concerned about the intermittent pump high temp warning, but have not actual...
1994 Cadillac Seville STS 4.6L heater pipes VIN: 1G6KY5291R
Thanks for all the info i went with jeff's route and it worked great thanks a bunch.
2000 Chevrolet Impala LS 3.8L No Start VIN: 2G1WH55K6Y
It would not crank again last night. Again confirmed passlock voltage, BCM power and grounds, codes and PCM theft data, crank request from ignition switch to PCM, relay control from PCM. Hit the remote start and it started. I will replace the BCM today. I will...
2001 Chrysler Sebring LX 2.4L No Start VIN: 1C3EL46XX1
As promised, I continued with the leakdown test. The second cylinder in the firing order is #3. 100% leakdown, same with cylinder #4. Then cylinder #2 was 16%! Another compression test yielded an average of 100 psi per cylinder, but sometimes one would spi...
2005 Chrysler Crossfire SRT-6 3.2L Cuts out VIN: 1C3AN79N95
liquid pump for inner cooler is still on order so i don't know yet, will let you know when i get the pump, thanks a lot, barry Trouble codes: P2027, P0403.
1999 Dodge Neon High Line 2.0L MIL Lamp on VIN: 1B3ES42C6X
Thanks for the help, special thanks to Robert from parameters for opening EGR: engine HOT, partial throttle, In gear and moving,no other drivability codes present. Knowing these parameters made the job much easyer. The new egr valve had a small leak where the... Trouble codes: P0401.
2001 Dodge Dakota Sport 4.7L ignition coils and engine 1 fuse VIN: 1B7GG22N71
later found out the vehicle had been elsewhere for repairs. It had a cam sprocket replaced and indeed was out of time by one tooth. thank you for all the replies.
2008 Ford F-350 Super Duty XL 6.4L Unknown VIN: 1FTWX31R78
Hi dear friends, thank you so much for the info, thanks to all members who response my question specially to Brian, he teach me about this transmission, so it was working normal, problema was found on town haul switch on steering column, strip wires were found...
1997 GMC K1500 Sierra SL 5.7L No Start VIN: 2GTEK19R4V
well the coil had such a great blue spark i was sure it was deeper than was a bad coil didnt have enough to make it thru the system.thanks guys .i guess no matter how long we do this stuff sometimes we overlook the obvious and try to over complicate th...
2003 Hummer H2 6.0L Ride Control VIN: 5GRGN23U73
After testing wiring from module to relay and found all wires good,I purchased and replaced a new air compressor module.As I plugged it in and cycled the key, suspension built up.Vehicle came up to level and customer decided that was good.Did not send to the d...
2002 Isuzu Trooper Limited 3.5L ECM fuse VIN: JACDJ58X62
This thing would not blow while in my possesion. All the hints everyone gave were great, if the problem was a hard failure, which it wasn't. He took the car with a handful of fuses and if it fails completely and I repair it, I'll update.
2008 Jaguar XJ8 4.2L Drive-axles VIN: SAJWA71B78
thanks for the input, Client is trying to get Jaguar to replace shafts at present as the complaint was reported well within the warranty period, thanks again.
2003 Kia Rio 1.6L MIL Lamp on VIN: KNADC12563
Timothy was right. The rear o2 was the problem, we just couldn't see it because of the aftermarket scanner. Replaced rear o2 and all is well. Still has arcing, but customer doesn't want to deal with it. Trouble codes: P0133 (Upstream o2 sensor slow response).
2005 Land Rover LR3 SE 4.4L MIL Lamp on VIN: SALAD25485
first let me say that i am sorry for no repair info on this vehical. customer did not want to spend any time or money on a car that did not belong to him any more. i guess he lost it to his wife in the divorce and said let her fix the dang thing. so thanks to... Trouble codes: P2610, C1A13, C1A20.
1993 Lexus ES300 3.0L No Start, Cuts out VIN: JT8VK13T1P
well guys bit has been a learning experience, as some of you responded, piston had overheated and sent pressure down coming out from left valve cover , i did remove the heads back again and found #2 a spot where the piston inclined and rub the wall, im going t...
1998 Lincoln Town Car 4.6L wont fill with fuel VIN: 1LNFM81W1W
customer declined any more work on this car( no money) i also suspect the rollover vale in tank. if they come back will add more info
2004 Mercedes-Benz ML350 3.7L Door Lock,Power Seat,Power Mirror,Turn Signal VIN: 4JGAB57E34
This car is fixed.I replaced the aam all activity did not have any code and communication was fine.thanks to everyone that replay .
2008 Mercedes-Benz C300 Sport 3.0L tail lights VIN: WDDGF54X18
Much thanks to Byron, the system is operating as it should, the owner of the car had no idea the vehicle had a rear fog light, neither did I, I am a GM guy. Thanks again Byron !
1997 Mercury Sable GS 3.0L WIndows and steering VIN: 1MELM50U2V
I feel stupid now. Mike, Don and Marty nailed it. It was the range sensor. I feel stupid because I ran into a similar problem about 5 yrs ago and the memory came back as I was pulling the sensor off a flood of memories came back. The TSB wasnt in Mitchell and ...
2002 Nissan Altima 2.5L Hesitation, MIL Lamp on VIN: 1N4AL11D92
to start i want to say thanks to everyone that responded.this vehicle belongs to drive time after doing the repairs to get it up and running.we had this other problem come up with the mil coming on.after addtionial diag.replace the cam and crank sensor.which t... Trouble codes: P0011.
2005 Pontiac Grand Prix 3.8L Steering VIN: 2G2WP52235
Well some times you just have to do it yourself. I have 4 techs. 3 had the opportunity to fix the problem and failed. My lead tech finally got involved and found a pin hole leak in the return line tube. End of story. What a joke.
2007 Saturn Ion-2 2.2L Electric Steering Assist VIN: 1G8AJ55F47
First Thanks to everyone that took time to reply, I forgot to mention that the customer had brought the recall with them, I also called the 800 number and for some reason it was not being honered any more. It did turn out to be the motor, I got so dependent to...
2004 Toyota RAV4 2.4L engine VIN: JTEHD20V44
tried all recomended repairs . still not sure what the problem is sending computer out to be checked
2007 Toyota RAV4 Sport 2.4L 4wd VIN: JTMBD32V17
Well i goofed, after taking the vehicle to the dealer this morning and them trying to reflash the 4wd ecu with no luck, and getting back to the shop and deciding to start over from scratch, this is what i found. Good ground to the module, ign+ good and next i ...
2009 Volkswagen Jetta TDI 2.0L MIL Lamp on VIN: 3VWRL71K29
Monitor the sensor voltage with a meter. The sensor has good 5 volt reference and ground. KOEO:.51V, Idle: .51V and @ 2,000 RPM: .75V. Clear the code and test drive, during the test drive the voltage dropped to .19V and never changed again. It reset the co... Trouble codes: P047C, 01148 (VW exhaust pressure sensor 2 short to ground).
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