Automotive Technicians Technical Discussion and Fixes for Apr 19, 2013

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	Help Request	Answers
	1996 Cadillac Fleetwood 5.7L low power/vacuum VIN: 1G6DW52P8T Customer complaint is low power and check engine light on. The fuel pump solved part of the low power problem, but it is still weaker than I would like to see for an LT1, and it is continuing to set lean codes. I also have an evap problem, but I have isolated ... Trouble codes: P0171 (lean bank 1), P0174 (lean bank 2), P1171 (lean during acceleration)	View
	2004 Cadillac CTS 3.6L EVAP purge valve VIN: 1G6DM57774 2004 Cadillac CTS 3.6V-6 keeps setting a P0443 ,sometimes a P0300 and P0304 when driven.P0443 come back seconds after start-up.ALLDATA tests for P0443 code seem to indicate a bad driver in the computer.Purge won't actuate with scan tool.A class instructor said...	View
	2004 Cadillac DeVille 4.6L windows VIN: 1G6KD54Y94 I have this cadi, that came in with a intermit right front window inop, so at customer request I replaced window motor and regulator, cust still had intermit RF window inop, along with all the other windows. check the 30 amp circit breaker and found to be melt...	View
	1996 Chevrolet Blazer 4.3L Brake VIN: 1GNDT13W5T Came from another shop they indicated that the master cylinder was replaced for a low pedal. That did not change after new master was installed. They installed old master and told customer they cant fix. We get we perform full bleed procedure including the abs...	View
	2006 Chevrolet Silverado 2500 HD LT 6.6L Tcm VIN: 1GCHK23D66 Truck came in from ford dealer to have tcm replaced and programed, replace the module with a new module and went to program and there is no communications...had some used modules and tried them,still no communications. Replace glow plug control module then ecm...	View
	1989 Chrysler Fifth Avenue 5.2L Surge, flattens out VIN: 1C3XM66P9K see repair history	View
	2006 Chrysler PT Cruiser Touring 2.4L Ignition switch VIN: 3A4FY58B06 Hi Group, got this PT in,Intermintently not cranking,tested starter,test good.Turn key,will not crank,starter relay & ASD click,found if I turned the ignition switch easy like a lady would,no crank,but if I really turned the key hard it would crank,like the sw...	View
	1998 Dodge Ram 1500 ST 5.9L Interior Lights VIN: 1B7HF13Z6W Got an interesting one in this morning that I could use a little reassuring on. 1998 Dodge Ram pickup with dome light issue. The dome and map lights will not turn off unless you pull the fuse #3 in the interior fuse panel. This also affects the radio. Door swi...	View
	1993 Ford Ranger STX 2.3L Hesitation, Stall VIN: 1FTCR10A2P We have "inherited" a 1993 ford Ranger that will die off on acceleration at about 35 mph hot or cold. It acts like it is starving for fuel. At first the pressure was low 19 lbs. After a new pump and regulator the pressure is correct 35 lbs.,but it still dies. ...	View
	2004 Ford F-250 Super Duty Lariat 6.0L Hesitation, Poor Power VIN: 1FTNX21P04 After completion of above repair, engine would not build any high pressure oil, Air tested system and found no leakage, Finally I got tired of just assuming the new part was a good part, installed old HPOP. Engine started almost immediately and had good idling... Trouble codes: P2290	View
	2004 Ford F-350 Super Duty XL 6.0L oil pressure VIN: 1FTSF31P44 04 f350 6.0 low oil pressure when hot, replaced front cover and low pressure pump. High pressure is in spec. Seems to run fine but hard starting after hot the oil pressure light comes on. replaced oil gage sender.Manual oil pressure also drops when hot.Added 2...	View
	2006 Ford Expedition XLT 5.4L Unknown VIN: 1FMPU16566 Customer bought vehicle with no engine and installed used engine from a 2006 F-150 (could not find any Expeditions). Setting codes P0198-Engine oil temp sensor circuit high and P0349-cmp sensor circuit intermittant bank 2. The P0198 was simple, the motor he pu...	View
	2009 Ford Escape XLT 3.0L AC system VIN: 1FMCU03G59 Hello all, and thank you for in advance for an guidance. Working on a Ford escape, 3.0 duratec. Having odd AC issues. This car came in originally with the pressures thru the roof: high side about 370psi and low side had our gauge pegged (120 psi). Wouldnt turn...	View
	2002 GMC Sonoma SL 4.3L MIL Lamp on VIN: 1GTCT19W22 Generally speaking a heater circuit code does not present too big a problem unless the wires are shorted or broken, but this is not the case here. All purple and purple/white wires intact and not grounding anywhere. So back to my wiring diagrams and I find the... Trouble codes: P0155	View
	2005 GMC Envoy SLE 4.2L Powertrain VIN: 1GKDT13S55 Vehicle was towed in with a Reduced Power Light and Check Engine Light on. Problem is intermittent and does not do it all the time. When it does act up vehicle will not go over 20 mph and no power. Did all the Pinpoint Tests related to the trouble codes and th...	View
	1995 Honda Accord LX 2.2L Hesitation, MIL Lamp on VIN: 1HGCE1823S Car has a slight stumble and turns the check engine light on when cold. Otherwise runs great. checked wire from sensor to pcm OK. If pcm thought it wasn't seeing the signal would it cause the stumble? Stumped on this one. Thanks in advance for your help. Trouble codes: 09 (1 cyl identification sensor)	View
	2001 Honda Civic LX 1.7L timing tensioner VIN: 1HGES15591 I replaced the timing belt on this car about 5000 miles ago. About a month afterward the customer said there was a loud noise coming from the engine. What I found was the tensioner spring for the timing belt broke and the belt was slapping against the timing c...	View
	2002 Honda Accord SE 2.3L Steering Rack VIN: 1HGCG56732 Thanks to all for help. Coworker complained of a clunking in the steering while turning wheel side to side a little while vehicle is stopped. Could only duplicate with vehicle on the ground. Noise was most prominent from the rack. Put vehicle on the alignment ...	View
	2004 Honda Civic EX 1.7L o2 sensor code VIN: 1HGEM21904 Car came in with a P0134 ho2s s1 circuit no activity code I informed customer a o.e. sensor needs to be put in and what it would cost he decided he would do it him self and ended up back for the same code I tested wire integrity with a small load from the pcm ...	View
	2005 Honda Civic Hybrid 1.3L Immobilizer system VIN: JHMES96655 This vehicle was towed here from another shop, they replaced the fuel pump, fuel pump is working now but it will not start. The immobilizer system indicator light keeps flashing. I know how to do a relearn for the key on GM vehicles, but I am at loss with this...	View
	2005 Hyundai Santa Fe GLS 2.7L A/C Fuse VIN: KM8SC73D45 This vehicle was purchased at a salvage auction & brought to us by the body shop. It had been hit lightly on the right front corner. The body shop has replaced the right front fender. The a/c fuse continues to pop as soon as it is turned on. Could not see any ...	View
	2008 Infiniti G37 Sport 3.7L Poor Idle Quality, MIL Lamp on VIN: JNKCV64E88 Round 2 Infiniti/Nissan guys. I closed the previous post due to lack of help. I have more information now. I pulled the timing cover and lined all the marks up correctly. Started engine and runs just as bad as before. Sounds retarded. I scoped the cam/crank se... Trouble codes: P0011 (Intake valve timing bank 1), P0021 (Intake valve timing bank 2)	View
	2002 Jaguar XJ8 4.0L a/c VIN: SAJDA14CX2 So this Jag came in with no A/C I hooked the gauges up and had high pressures, high side was up above 300 and low side was around 50 to 60. So i evacuated and recharged and got the same readings. So i was going to replace the condensor, drier, and expansion va...	View
	2006 Land Rover Range Rover Sport HSE 4.4L Both Front Wondows Not Working VIN: SALSF25476 Hi evrybody the car came both front windows not working ,i checked all fuse all fine ,lift window relay was fine .evrything seam ok only gry/black wire came from global open/close fet to driver side window motor no have grn - ,,when i feed it with grn- only dr...	View
	2004 Mercedes-Benz S430 4.3L Poor Idle Quality, Misfire VIN: WDBNG70JX4 This vehicle came in with a rough idle, it has never had a tune up so we replaced the plugs and wires with oe parts. We also smoked the evap system for leaks and found none. The air filter housing was packed with sand so we cleaned it out and replaced both fil... Trouble codes: P0500 (speed sensor), P0456 (purge control minor evap leak), P0101 (maf sensor signal and voltage)	View
	2005 Mercedes-Benz E500 5.0L Control panel VIN: WDBUF70J15 This car came in with A/C not working. We found a leaking dryer. We replaced dryer, evacuated & recharged system. A/C light flashes when pressed. We think it may have set a code when the freon got low and needs to be cleared. Our Snap-on scanner does not have ...	View
	2007 Mercedes-Benz ML320 CDI 3.0L Cuts out, Stall VIN: 4JGBB22E57 This is a 2007 Mercedes ML 320 (W164) 4Matic with a 642.940 CDI diesel engine and 722.902 transmission. Customer states he was driving in town and vehicle just shut off. Restarted immediately, but stalled when put into gear. Restarted again and drove to shop. ... Trouble codes: 20210, 20470, 20170	View
	1996 Nissan Pathfinder LE 3.3L Cuts out, Stall VIN: JN8AR05Y0T STUMPED IN VIRGINIA!I hava found a few minor problems like a metered air leak in intake hose-replaced.Worn out spark plugs-replaced.Coolant leak on throttle body-repaired and cleaned throttle body.Original problem was for stalling,ran the vehicle on and off fo... Trouble codes: P0100 (Maf sensor problem), P0304 (Cyl 4 misfire), P0300 (Multiple cyl misfire), P????	View
	2005 Nissan Titan LE 5.6L Differential VIN: 1N6BA07B25 This truck has a leaking right rear axle seal. There is a Nissan tsb 10-032 for this problem. The tsb repalces the axle shaft, seal, and bearing. Here is the question...When I called Nissan about the parts they said that they only replace the complete differen...	View
	2006 Nissan Maxima SL 3.5L Unknown VIN: 1N4BA41E06 This vehicle came in with a vibration when applying the brakes the whole front vibrates real bad has anyone seen this problem before. thanks.	View
	2008 Nissan Frontier LE 4.0L Check Engine Lite VIN: 1N6AD07W28 Customer came in stating that he replaced the battery with a new one and soon after the check engine lite surfaced. I scanned it with my modis and got code p0603(ecm power back up problem) i checked all fuses and they all seem to be good. Any help will be appr...	View
	2005 Other GM rodeo 3.0L Excessive Emissions, Hesitation, Surge, MIL Lamp on, blows white smoke VIN: MPATFS77J5 HI GUYS, I need a bit of guidance here not a diesel specialist but this customer is a regular and has a fleet of cars we service. The vehicle was towed in and wouldn't start.It would crank but not start.I removed the diesel filter and it was full of water.Re... Trouble codes: P0216	View
	2005 Subaru Outback i 2.5L Surge VIN: 4S4BP61C65 This is my personal car. Vehicle surges only when the cruise control is on. Once the cruise is cancelled or turned off the surging stops. The surging is very noticeable to the extent that passengers notice even if they are unaware the cruise is turned on. The ...	View
	2000 Toyota Tacoma DLX 2.4L 2-3 Upshift VIN: 5TENL42NXY No automatic upshift from 2nd to 3rd. When I installed our Snap-ON Modus it gave no option to interface with the automatic transmission electronics and I have been told it may not be electronically controlled like most everything else I have worked on of this ...	View
	2003 Toyota Camry SE 2.4L Brake Pads VIN: 4T1BE32K63 Im at a loss . This camry goes through brakes like mad.First and second times pads were replaced factory pads were used. The third time we tried aftermarket ceramic pads and they lasted approx 12000 miles.When the vehicle comes in I put it up in the air and al...	View
	2005 Toyota Corolla CE 1.8L Right Rear Door VIN: 1NXBR32E95 Hello. I cant get the right rear door open on this thing. It opens up to the first locking point of the latch but doesnt go any further. It is the same between the inside and outside handles. I have put my full wieght on it and it will not budge. Pretty much I...	View
	2005 Toyota 4Runner Sport 4.7L MIL Lamp on VIN: JTEBT14R05 Vehicle came in for P1445, last week. Code states asv no.2, bank 2 stuck closed. I tested the easily accessible asv solenoids first, they operated flawlessly with a power probe. After reading up, I pulled the intake, found cracked/broken vacuum hoses going to ... Trouble codes: P1445 (Air switching valve no.2b2 stuck closed)	View
	2005 Toyota Tundra SR5 4.7L lock cylinder VIN: 5TBET34135 Hello to all and welcome spring! This Tundra has a situation in which the igntion key will not turn at times. This condition occurs when the steering wheel has been turned enough that the lock in the column has caught the lock ring. There is enough tension th...	View
	2005 Volkswagen Jetta TDI 1.9L Excessive Emissions, Hesitation, Surge, Cuts out VIN: 3VWRT71K35 Hi everyone. This TDI BRM engine code recently came into the shop with a P0101 fault code and customer complaint of smoking and hesitation. After researching it on here I inspected the EGR valve and found it was sticking open we also noticed that air filter ...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2007 Cadillac DTS L 4.6L Air Ride Level VIN: 1GEEH06Y67 have been trying to locate grounding wire thru harness - only seems to drop now when you go over bump & have body twist. will post fix when I find it.	4
	1968 Chevrolet C10 Pickup 5.3L Engine VIN: CE248Z1721 Hello, Thank you for all the replies that we have received. We checked the distributor, oil pump shaft, fuel pump, Oil pump and screen, couldn't find anything wrong. We changed the Oil pump, shaft and screen anyway since we dropped the oil pan to inspect. We a...	31
	2003 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK29143 you guys all hit the nail on the head. i rechecked fuel return and had over 30ml on left bank. replaced left bank injectors and now truck starts perfectly. thanks to all who replied.	17
	2006 Chevrolet Uplander LT 3.5L steering VIN: 1GNDX33L16 Thanks to all who responded. looked for all the usual issues. Hoses were all ok. This vehicle does not have a remove reservoir. We ended up flushing the system and so far all is well. Thanks,	8
	2007 Chevrolet HHR LS 2.2L steerig VIN: 3GNDA13D07 it was a 60 amp fuse under the hood thanks to everyone who replied thanks again jim	6
	2007 Chevrolet Silverado 2500 HD Classic LT 6.0L Hesitation VIN: 1GCHC24U47 This truck is partially fixed. The lean code went away after I changed the spark plugs and it idles much smoother also. The cat code is still there and the check engine light goes on after I drive a couple of miles and come to a stop and after idling for a sho... Trouble codes: P0420 (Cat sys efficiency below threshold bank 1), P0174 (Too lean bank 2).	13
	2004 Chrysler Pacifica 3.5L Hesitation VIN: 2C8GM68414 Thank you, IATN members, for your quick replies. As always, the comments were helpful. I think this is my 15th help request, and I am grateful to all who share their experience. The problem was two-fold, and I fixed one part of the problem, and am waiti... Trouble codes: P2008 (Short Runner Valve Solenoid Circuit).	5
	2006 Chrysler PT Cruiser Touring 2.4L Charge Light on VIN: 3A4FY58B76 Thank you for the replies. Customer took the vehicle to Chrysler and had it programmed. All is well now.	8
	2006 Dodge Ram 1500 ST 4.7L Intake Vacuum VIN: 1D7HU18N66 Thank You to all the replies. After reading the replies our tech tried switching the fuel injectors from side to side and it didn't change anything. We found out from Jasper that this engine has a common problem with valve seat fall out. This would explain the...	7
	2001 Ford Focus LX 2.0L Poor Idle Quality, Misfire VIN: 1FAFP33P81 Thank you everyone for the help. It was the shaft seal on the intake runner where it goes into the housing causing an intake leak. It didn't always leak enough, which made it tough to find. They do not sell the seal alone. We need to replace the housing assem...	34
	2006 Ford Fusion SEL 3.0L Misfire, MIL Lamp on VIN: 3FAFP08186 Recieved numerous replies about possible cat issues but Tim [...] hit the nail on the head. Timing had skipped, notified the customer and recommended for him to take it to the dealer because I have never had one of these apart and he needed the car back as ... Trouble codes: P0304 (No. 4 misfire), P0305 (No. 5 misfire), P0306 (No. 6 misfire), P0300 (Random misfire/misfire on start-up).	16
	2006 Ford Expedition XLT 5.4L No Start VIN: 1FMPU16596 Thanks for all the replies to my problem. I tried all the things that were suggested and I still couldn't get this vehicle to start. Most of you I believe were right when you said the vehicle should be taken to a Dealership. We have no Dealerships close to u... Trouble codes: B1602 (PATS received invalid FMT/ key CD).	7
	2004 GMC Savana 3500 6.0L Oil pressure VIN: 1GDJG31U84 Customer had engine replaced, no more problems. Thanks everyone for your opinions.	16
	2007 GMC Savana 3500 4.8L Cat VIN: 1GDGG31V37 OK, I really appreciate all the input and understand that the "real fix" is to install OEM cats. I have educated the customer (as well as myself) on the smaller aftermarket cat's surface areas which in turn only allows for smaller portions of the precious meta...	12
	1994 Honda Prelude Si 2.3L Not accurate VIN: JHMBB2258R I wish there was a way to edit a post rather than only being able to update it. I would have liked to edit the symptom and I may have gotten more replies. I was able to test RPM on the tach pulse wire and there was a signal there. From looking at the wiring di...	6
	2003 Hyundai Accent GL 1.6L No Start VIN: KMHCG45C13 Thanks for all the replies from everyone. We removed the crank sensor and cleaned the rust build up under it and this never corrrected the problem. What we ended up doing was replacing the crank sensor with another aftermarket one of the same brand and have st...	9
	2003 Hyundai Accent GL 1.6L MIL Lamp on VIN: KMHCG45C93 all data showed wrong voltage specs. should have been 12v reference not 5 volt. bad connection at connector at ecm causing open circuit. Trouble codes: P0340 (Cam sensor).	3
	2008 Infiniti G37 3.7L Timing VIN: 1NKCV64E88 I have NOT fixed this and will be reopening it for further help if possible.	10
	2007 Jeep Liberty Limited 3.7L Check Engine Light VIN: 1J4GL58K67 We tested compression/leak down seven ways to sunday without failure. looked for vac. leaks, o2 readings, nothing.. had identafix tell me to disconnect cam/crank sensor to see if it resets?! the only concern was cel, unable to see if cel resets if its on with ...	9
	2002 Lexus RX300 3.0L Noise in rev, 1,&2 VIN: JTJHF10412 Test drove this one today after repair, most likely it was the planetary going out as most of the replies said. The customer chose to get a replacement unit, also my boss chose to replace the transfer unit too as he has replaced several of those for noise issu...	5
	1999 Mercedes-Benz SL500 5.0L key fobs VIN: WDBFA68F9X JUST A PERSONAL NOTE OF THANKS ITS BEEN A VERY WILD WEEK HERE IN BOSTON AS YOU CAN IMAGINE BY SEEING THE NEWS,, MOST VENDORS AND SUPPLIERS WHERE SHUT DOWN DUE TO THE EVENTS OF THE WEEK HERE JUST A WORD OF THANKS TO THE ONES WHO DI...	6
	2007 Mercury Montego Premier 3.0L Compressor VIN: 1MEHM42127 Most of the replies focused on too much oil, this system has only been serviced by us and has worked properly for a year. I replaced the condenser, suspecting debris from the previous compressor failure intermittently moving around and plugging the passages, t...	14
	2003 Nissan Sentra GXE 1.8L No Start VIN: 3N1CB51D93 IVE GOT THE CAR RUNNING, THE TIMING WAS OFF ONE TOOTH. I DISREGARDED EVERYTHING THE MANUAL SAID. I TOOK THE INTAKE CAM OFF WITHOUT USING AIR AND PUT THE NUMBER 1 CYL AT TDC VIA DIAL INDICATOR, I PUT THE EXHAUST CAM KEYWAY STRAIT UP AND PUT THE TIMING CHAIN ON ...	14
	2008 Nissan Altima 2.5L power steering VIN: 1N4AL21E78 thanks for all the help replaced the ps pump and corrected the concern.	8
	2000 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF28B0Y vehicle repaired by replacing mass air flow sensor many of the replies i recieved were correct on the proper repair	13
	1967 Volkswagen Transporter 1.5L flasher VIN: 2470579910 Why we don't listen to that old saying about asuming. When you see an old European car with the + grounded you asume thats how it is, especially when the thing starts and runs. I learned more from the replies to this post than hours looking at books and intern...	15
	1997 Volvo V90 2.9L Engine VIN: YV1965966V Sorry guys. I am still scratching my head on this one. I am trying varying options to get the beast to roar but it subbornly refuses to budge. If and when I find the cure I will post the fix. In the meantime I would like to thank those Volvo Techs who took the...	10
	2001 Volvo V40 1.9L MIL Lamp on VIN: YV1VW29531 we finally fix the problem, before I asked for help I forgot to mention that the ABS light was on, thinking that the ABS had nothing to do with it, we were wrong! We took a scanner, droved it and notice the MPH was at 0, although the MPH guage was working fine... Trouble codes: P0507 (Idle Air Control System RPM high Than Expected).	3
	2006 Volvo S60 2.5T 2.5L No Start, Stall VIN: YV1RH59266 this one was finally fixed with the aid of a smoke test.found smoke at the pipe to intercooler connection on left front bottom.it was overlooked due to it looked connected,but was only touching together.	7

(Also Available: All, Asian, Chrysler, European, Ford, GM.)