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Prev Professional Automotive Repair Technical Discussions for December 11, 2013
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Help Request Answers
1993 Acura Legend L 3.2L Excessive Emissions VIN: JH4KA7663P
Hi guys, we have a Acura 93 legend that fails NOX. We find that the computer ground to the EGR solenoid will come on for 1 second then go off. If we ground the EGR solenoid wire, the solenoid draws 700ma and NOX drops to 169. ECT temp normal, IAT ok, TPS works...
2002 Cadillac Seville SLS 4.6L MIL Lamp on VIN: 1G6KS54Y92
Vehicle was in for running rough and misfires. Found bad ign module. Replaced and ran good. Came back a month later with p0420 code. Cat effic. Replaced the cat with bolt on eastman cat. 2 months later same code. Replaced again. Just under 2 months, same code ... Trouble codes: P0420 (Cat effic)
2003 Cadillac CTS 3.2L Heater VIN: 1G6DM57NX3
Hi All: I'm having a difficult time with the heater system on a 2003 Cadillac CTS. I have worked on this car for a few years, so I have history on it. About 2 years ago, it came in for a complaint of no heat on the driver's side. I flushed the core and all wa...
2002 Chevrolet Avalanche 1500 5.3L transfercase VIN: 3GNEK13T72
Scanner code C0327 Tested for power and grounds, No ground at encoder rtn wire (blk/wht); Retested at module no ground. Grounded wire with power probe then system works the main question is should this wire have ground all the time or does the module send gr...
2002 Chevrolet Silverado 2500 HD 6.6L Fuel and Temp gauges VIN: 1GCHK29122
Hey Guys, I have an intermittent one here. I think I have it narrowed down, but I thought I would get a second opinion or two. This Diesel truck has a couple intermittent problems that seem to all be related and seem to have a single cause. The fuel and te...
2005 Chevrolet Silverado 1500 LS 5.3L No Start, MIL Lamp on VIN: 2GCEK13TX5
We are working on a 2005 Silverado 1500. We scanned computer for codes. There was a code for the fan control circuit and random misfire. Checked and found a large amount of moisture in the ECM plug. We cleaned and applied dielectric grease to seal and connecto... Trouble codes: P0480, P0300
2006 Chevrolet Express 3500 6.6L Hesitation, Cuts out, MIL Lamp on, goes into limp mode VIN: 1GCHG35266
intermitent problem, power loss when goin down the highway after check engine light comes on. it wil either set code p0108 or p0234. weare not real familiar with duramax diesels and have never ran into this before. any help would be greatly appreciated Trouble codes: P0234, P0108
2007 Chrysler Town & Country Touring 3.8L No Start VIN: 2A4GP54L27
Vehicle came in with no start. Theft light on but not flashing. Codes in pcm P0513 Invalid Skim Key. Codes in skreem VIN MISMATCH and ROLLING CODE Failure. Vehicle wouldn't crank very fast for customer and they jump started it. Then vehicle started a couple of... Trouble codes: P0531 (Invalid Skim Key)
2005 Dodge Ram 1500 ST 4.7L abs light on VIN: 1D7HU18N15
This 05 Dodge Ram 1500 transmission would not go in to lock up. Replaced transmission pump and torgue converter. Still didn't fix the the lock up issue. Replaced pcm and reprogramed. The pcm fixed lock out issue, but now have three abs codes 82,83,and 84. Inst... Trouble codes: 82 (Number of tone ring teeth ouot of range), 83 (Tire size), 84 (Mismatched vin)
2008 Dodge Grand Caravan SE 3.3L Misfire VIN: 1D8HN44H68
This vehicle was brought into my shop today. The customer has been throwing parts at this van and has given up. It has a misfire on #3 & #6. It has spark and injection pulse only for the first few seconds then it looses both on those two cylinders. The cam and... Trouble codes: P2308, P0403
2011 Dodge Durango Crew 3.6L fuel pump VIN: 1D4RD4GG0B
This vehicle came in from Auction, the battery would not hold a charge, when we first received it we could jump it and get it to stay running and the alternator would show ample charge. We put the recommended battery replacement in the vehicle and now the vehi...
1992 Eagle Talon TSi 2.0L No Start VIN: 4E3CS54U8N
This Talon does not want to start when it is dead cold unless it gets a shot of starting fluid. It will crank without any pop at all. As soon as you give it starting fluid it will fire up and run good and restart until it is returned to a dead cold state. It i...
1986 Ford Escort Pony 1.9L vacuum
took over a cylinder head and gasket replacement job. none of the vacuum lines/hoses/components were labeled. as you all know, these cars have a million vacuum lines. I know where alot of them go, but have no idea where a bunch of them go. If any one has a det...
2001 Ford Mustang GT 4.6L theft VIN: 1FAFP45X01
hello, i have this 01 mustang that is a repo with no keys.sent to lock smith and they cut 2 keys but said they could not get keys to program. so i have car now and also have not been able program keys with NGS. cluster is setting a b2141 NVM configuration fail...
2008 Ford F-150 XLT 4.6L No Start VIN: 1FTRW14W08
Hello everyone, I have a problem with this truck at my shop and need some help diagnosing it. The customer brought it in after he washed the motor. The truck woudn't start after he washed it. I checked for injector and spark and noticed no injector pulse. I c...
2002 Honda Accord SE 2.3L alternator VIN: 1HGCG56762
Ok thanks in advance, car came in with a noise, bearings bad in alternator still charges fine though, put reman alternator on, charges good and is quite. car came back a week later not charging, all lights on the dash are on. Tested verified alternator quit ch...
2002 Honda Accord EX 2.3L MIL Lamp on VIN: JHMCG66882
Car was at dealer for p1167 dealer sad it was o2. Customer replaced both front and rear o2 sensors. Car came to my shop with p1167 and lean code. I know resistance is high for o2 setting heater code but I don't understand why computer won't read sensor input. Trouble codes: P1167
2008 Honda Odyssey EX-L 3.5L Surge VIN: 5FNRL38778
This 2008 Odyssey has an interesting problem. The customer came in complaining that the vehicle feels like it is shifting gears when it shouldn't be. I test drove the vehicle and at freeway speeds I could feel something that did feel like a shift however when ...
1999 Infiniti Q45 4.1L Misfire VIN: JNKBY31A7X
Engine missfires at idle only, can feel it twitching several times a minute, not a dead miss, it is very intermittent. Happens less when engine is first started or after it is fully warmed up. Replaced ignition coil and #6 plug, still missfiring. Replaced coil... Trouble codes: P0306, P0325, P0330
1996 Isuzu Trooper S 3.2L alternator VIN: JACDJ58V5T
Hi I'm looking for some information on how the charging system works ( diagrams , what controls its field etc) I had remove the unit and had it tested at a reliable rebuilder with no issues. Voltage at the battery is only battery voltage. Need help were to sta...
2001 Jeep Cherokee Sport 4.0L starter relay ground VIN: 1J4FF48S31
hey guys, i have a 01 jeep cherokee here that has a intermittent no crank. the problem is i have a intermittent ground going to the starter relay. the relay gets it ground from the neutral safety switch. so this is where things get tricky. i can make this jeep...
2002 Kia Optima SE 2.4L balance shaft/oil pump VIN: KNAGD126X2
came in with eng vibration pulled timing cover and found front oil pump/balance shaft had jumped time. r&r belt chk tensioner and pulleys. all looked good. put back together. customer drove for a week & returned w/ same problem. Never seen just one component j...
2008 Land Rover Range Rover Sport Supercharged 4.2L Hard starting VIN: SALSH23478
This Land Rover has a very difficult time starting when cold. We have been between 5*F and 25*F the last couple of weeks, and this is when the issue occurs. It will crank over fine, but coughs and sputters and tries to start, but won't. It has the push-button ... Trouble codes: P0128 (Coolant Thermostat)
1992 Lincoln Town Car 4.6L Poor Idle Quality, Stall VIN: 1LNLM81W8N
the car stalls at stops intermittinly idle quality is poor in open loop but its ok in closed other codes were found. no signs of a vacuim leak,thotttle body is clean Trouble codes: 332 (egr not opening)
1999 Mercedes-Benz C230 Kompressor 2.3L shifter VIN: WDBHA24G2X
After curing a bearing sound (insulation rubbing on front driveshaft joint) I sprayed the linkage to loosen a stiff feel in the shifter. The shifter will work freely now through P-R-N-D, but will not move left from D to get to the (electronic) 3-2-1 positions....
2002 Mercedes-Benz C240 2.6L Draw VIN: WDBRF61J12
Hi mercedes guru's we are fighting with this benz it has a battery draw of about 320ma so it will draw down the battery in 2 days. We disconnected the seat control modules because it is a known problem,however no change.we pulled the fuses one at a time very l...
2003 Mercury Sable GS 3.0L Stall VIN: 1MEFM50U63
car was towed in , will stall after 30 minute warm up, check and had no codes, still has spark when its about to die, will always restart but when die unless you raise the idle way up and will keep on running until you go back to idle and just before it dies y...
1990 Mitsubishi Montero 3.0L No Start VIN: JA4GJ31S6L
i have this mits montero that wont start cold. it will crank and sputter after about six to ten times it will start but sputter for about six seconds then will idle fine seems like when a car is running too lean if i step on the accelerator it will die after i...
2007 Nissan Altima SL 3.5L Instruments/ front blower motor VIN: 1N4BL21E37
This vehicle came in with a no cold front blower operation for the first 15 mins. of operation. After initial operation, blower would work fine all day. I found a number of prompts on identifix to replace the blower relay which repaired nothing. Upon pin tests...
2008 Nissan Sentra SL 2.0L No Start VIN: 3N1AB61E58
Really in need of some direction on this one. This car has been in and out of the shop several times over the past 6 month's for this problem. First at the local Nissan dealer and more recently (2 months) here. Vehicle exhibits a hard or no start condition and... Trouble codes: P0340 (CMP Sensor Phase)
1997 Oldsmobile Bravada 4.3L Shift and TCC Solenoids VIN: 1GHDT13W5V
This problem is extremely intermittent. Initially the complaint was key would not turn to LOCK and the truck had no power. I found the ignition switch had failed and replaced it. All was well for about 6000 miles and the customer complained that the SES light ...
2001 Oldsmobile Aurora 3.5L modules VIN: 1G3GR62H51
we have a 01 Old's aurora 3.5L , the customer jump started vehicle since then the dash has erratic lights coming on, the security light comes on and stops the fuel gauge from working, when the ignition key is in the on position we can communicate with all the ...
2006 Pontiac G6 GT 3.5L Timing cover
Need some help from you GM guys. We have a leaking timing cover gasket here and Alldata says R&R time on the timing cover is 3.5 it also says to remove the oil pan. The time to r&r pan is 5.3 . So is the time on the cover way to low or can you leave the pan in...
1999 Porsche 911 Carrera 3.4L code 5 VIN: WP0CA2995X
thanks in advance ,i'm going crazy w/ this car .car came in top not working,inspect the cylinders and they were leaking ,replace 2 cylinders put new fluid ,when i try noting works ..after closing the shop,no phones ,no customers i found that the potentiometer ...
1999 Porsche 911 Carrera 3.4L drivers seat VIN: WP0CA2998X
drivers seat inop, passenger functions fine power going into seat module appears no power out apply direct power to seat no action by motor and connectors and wiring show no signs of obvious damage. possible repairs and or how common are these seat motors for ...
2007 Saturn Relay-1 3.9L No Heat VIN: 5GZDV53107
Vehicle came in with no heat at all, after replaced water pump & thermostat, heater works good at cruise. But no heat at idle. Also notice that 2 metal pipes along the front valve cover ( these pipes route to the heater core)turn cold when there is no heat. C...
2007 Subaru Impreza 2.5i 2.5L Vent Valve VIN: JF1GG61637
Hi, Guys, I needs some help for this Subaru Impreza. Car came in with the code P1443 - Vent control Valve problem, after resetting ECM, check engine light is back within 2-3 Ml to drive. Vent Control Valve (drain Valve) replaced. therei is 2 wires to the valv...
2001 Toyota Avalon XL 3.0L battery VIN: 4T1BF28B01
Customer complaint is battery is dead after 2 days of sitting. Found parasitic draw of 260mA after sitting for more than 1 hour. Pulled DCC fuse and draw dropped to 38mA. This fuse feeds the radio, ECU-B and Dome fuses. Pulling one of those fuses at a time doe...
2001 Toyota RAV4 2.0L No Start VIN: JTEHH20V21
Veh. is a no start.Number 1 and 2 coils not firing.3 and 4 work just fine.Tries to start but obviously can't on two cyls. I have 12volts,good grounds,5v reference.Have known good coils and plugs.I can switch coils and plugs to 3,4 cyl and they fire fine.All 4 ...
2002 Toyota Tacoma DLX 2.4L evap VIN: 5TENL42N22
truck had a P0440 code for small leak in the evaporative system so i check for crack hoses, gas cap gasket everything seems ok. i went and did a smoke test and there is a lot of smoke coming out of the filler neck of gas tank, so i plugged in the scanner and s...
2005 Toyota Camry 2.4L inoperative speedo VIN: 4T1BE32K15
Vehicles speedometer is inoperative and sets P0500 immediately. Alldata does not have any troubleshooting on this code for this model. We have replaced both speed sensors with no change. Any suggestions or advice on how this speedometer operates would be great... Trouble codes: P0500
2008 Toyota Tacoma 4.0L 4wd VIN: 5TEUU42N88
Need some Toyota experts, This Tacoma came in with no 4wd. When shifting into 4wd the light on the dash turns on and flashes. The transfer case is shifting into 4wd, the front driveshaft spins. The front actuator located on the front diff is not shifting. you ...
1982 Volkswagen Vanagon Campmobile 2.0L No Start VIN: WV2ZA0254C
towed in no start. found weak spark and no injector pulse. replaced points and condenser has good spark now. injectors have 12v on both sides of plug. very weak pulse when cranking. unplug ecm and has 12 v on 1 side of plug. have tried 2 used ecms with same re...
1997 Volkswagen Jetta GL 2.0L Mechanical VIN: 3VWWA81H7V
We have this pos in our bay[I still think the germans are still pissed about ww2] that needs a clutch cable. Under the hood looks ok, but we can't figure out how the under dash end can be done. Removed the inst cluster, can't get in that way, labor guide says ...
2002 Volkswagen Passat GLX 4 Motion 2.8L Leak VIN: WVWTH63B42
The customer complained of a strong fuel odor. He claims he has had no work done on the injectors recently. The fuel injectors themselves seem to be leaking. We suspected the o-rings but when we removed the injectors it seems like the fuel leaks up into the wi...
2004 Volkswagen Touareg V6 3.2L MIL Lamp on VIN: WVGBC67L64
Good evening all, what we have here is an emission failure, we feel we have quickly isolated the problem to high crankcase vacuum, did try replacing the pcv valve unit to no help, however if u remove the oil filler cap it is a strong vacuum and once removed th... Trouble codes: P0102 (Mass or Volume air flow circuit low input), P2180 (System too rich off idle bank 2)
2004 Volvo S60 2.5T AWD 2.5L Mechanical VIN: YV1RH59H34
I have an engine oil leak that slowly comes from the area in between the center diff and the engine. It does come out at the hole at the bottom of the bell housing but also over the area over the center diff and the trans. I have put enough dye in this thing f...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2004 BMW 745Li 4.4L Poor Idle Quality VIN: WBAGN63424
Thank you to all who replied. Many of you were dead on with the sensor wiring. The tech had accidentally crossed the wires on the front sensors driver side head. Since so many of you mention valve covers not seating correctly we went ahead and smoked te... Trouble codes: 27BC, 2732 (nw intake control bank 2).
2005 Cadillac STS 4.6L Surge, Stall VIN: 1G6DC67A95
First let me say I forgot to mention that I had tried cleaning the throttle body, with no improvement. The hotter it got, the worse it got. after checking all the grounds, connectors etc., I decided to disconnect the throttle body before the surge and stall wa... Trouble codes: P0365, P0638.
1993 Chevrolet K1500 Cheyenne 5.7L Hesitation, Poor Fuel Economy VIN: 1GCEK14K5P
Well I am sorry for the long delay in closing this post. As I mentioned the customer is doing the work we were trying to help him out... I had many useful tips I tried another alternator. we cleaned all the grounds and re-located the t-stat grounds to an intak...
2010 Chevrolet Silverado 1500 LT 5.3L Oil Mpressure VIN: 3GCRCSE08A
thank you for all the replies. most every one said the screen under the pressure sensor was bad. i ordered one and since i already had the pan off i ordered the secondary pressure relief valve that screws into the pan itself. (apparently the parts guy i was ...
2001 Chrysler Town & Country Limited 3.8L Blower Motor VIN: 2C8GT64L11
This Town and Country is fixed.I recieved 10 replies to my problem and I thank you all.There was a 6th screw on top close to the firewall that went from the upper cover into the lower cover.I ended up removing the instrument panel and then could see the myster...
2002 Dodge Grand Caravan Sport 3.3L Front Brakes VIN: 1B4GP44R02
Thanks to everyone that responded. We work on plenty of Grand Caravans, but have never seen this problem, as many others have. We replaced the ABS Pump, and so far we have not had a recurring issue.
2007 Dodge Ram 3500 ST 5.9L Hesitation VIN: 3D7MX48C37
Ok sorry guyz and or girlz, customer decided to take vehicle shortly after I asked for help. The vehicle was being traded in as is... I can only conclude that all turbo functions were working properly and all fuel test showed good including hi and low pressure...
1966 Ford Mustang 4.7L Mechanical VIN: 6F09A27211
I was definitely able to snap defeat from the jaws of victory on the one! Thanks for all of your responses. I should have done what we all know to be true and check the simple first. Instead, I pulled the transmission and air checked and dissasembled and found...
2009 Ford Ranger FX4 4.0L Alternator VIN: 1FTZR45E39
3 wire plug at alternator had no voltage supply (red)wire. Drivers wheel well battery harness We found Green caustic powder. Rubbed by Plastic inner fender edge, red wire damaged. Solder repairs heat shrink. All is Ok Charging 14.7 90 amps. Good responses...
2000 Honda CR-V SE 2.0L No Start, Stall VIN: JHLRD1876Y
Benjamin, Jose, and both Franks are the men! Igniter is the culprit. No ground from igniter when stalled. New part in and happy customer. Thanks guys!
2007 Honda CR-V EX 2.4L Door locks VIN: JHLRE48787
replaced the left rear door lock assembly to cure the problem. Thanks for everyone's help!!!
2005 Jaguar S-Type 3.0L convertor VIN: SAJWA01T35
So sorry. I forgot I had this request open. We are waiting for authorization to get a new torque convertor. There is a bulletin (TSB S307-13)and updated convertor for this car. Here is a summary of replies "I think there may be TSB for convertor faults as wel...
2005 Kia Optima LX 2.4L Engine VIN: KNAGD12695
Thank you all for responding. We figured out that at the same it stalls it loses communication with the PCM. We swapped it with a different PCM and it never stalled again!
2005 Land Rover LR3 SE 4.4L coolant fan VIN: SALAA25425
After further research i discovered that po695 is a faulty E box fan. My scan tool would state engine coolant fan. Sure enough i removed battery, e-box, and found the broken wire to the ebox fan. Looks exactly like a computer fan, cpu fan. Soldered connection...
2005 Mazda 3 i 2.0L dash/radio VIN: JM1BK12F35
well after checking and rechecking everything we could think of we replaced the passenger side junction box and reprogramed it to the car as it was the only thing that all the systems passed through. the car has been gone for two weeks now and so far so good. ...
2012 Mercedes-Benz Sprinter 2500 3.0L MIL Lamp on VIN: WD3PE8CC6D
2003 Volkswagen Jetta GLS 1.8L No Start, Poor Idle Quality, MIL Lamp on VIN: 3VWSE69M13
Released the vehicle to the customer it still starts hard and has a rough idle,will do more research and check later. Trouble codes: P0341 (camshaft position sensor implausible signal).
2011 Volkswagen CC Sport 2.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WVWMN7AN9B
this one is fixed matt from pennsylvania was right on. battery volts went below 10 volts lost its idle wouldn't run or idle bunch of misfire codes did a relearn and all is well.thanks for all the replies. Trouble codes: P00, 301 (po302-), P0302, P0300.
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