Automotive Technicians Technical Discussion and Fixes for Feb 25, 2013

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Prev	Professional Automotive Repair Technical Discussions for February 25, 2013 International Automotive Technicians' Network (iATN) - Members Only	Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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	Help Request	Answers
	2005 Audi S4 4.2L coolant VIN: WAUPL68EX5 This vehicle came in running with gauge barely off the cold mark. If you allow it to idle for 30 minutes the gauge will come up to 50% and the fan will cycle on and off continuosly. Drive the car and the gauge will sink down to nearly the cold mark. I put a th...	View
	1995 Cadillac Seville STS 4.6L Starter VIN: 1G6KY5296S Car was towed into shop for a no start. When ignition switch is turned on instrument panel will work normal and information bar at bottom will display circuit checks. It will display "SWITCH PROBLEM" then stop. When ignition switch is turned to start position...	View
	2004 Cadillac CTS 3.6L Poor Idle Quality, MIL Lamp on VIN: 1G6DM57764 Ok guys code p0342 low came voltage bank one intake sensor replaced sensor still mil on checked voltage within spects you can clear codes test drive all day no mil cycle key of on mil will light p0342 help Trouble codes: P0342 (Bank 1 intake sensor low voltage)	View
	2005 Cadillac STS 3.6L headlight assm VIN: 1G6DW67755 Hello all,I install 2 headlight bulbs in this 2005 Cadillac over a month ago.Now the customer is complaining of water in his headlight assm.I tried to tell him that GM his had problems with this and it is not due to are replacement of the bulbs.Well now I have...	View
	1986 Chevrolet El Camino Conquista 5.0L Heat Guage VIN: 3GCCW80H1G A friend bought an '86 ElCamino that has had a '94 5.7 P from a Y body installed. Nice job, runs great. The only issue is the Heat guage. Guages are new,(same as 86 Monte Carlo). Does anyone have the resistance to temp values for this guage. I can't find this ...	View
	1995 Chevrolet K2500 Cheyenne 7.4L No Start, Cuts out, Stall VIN: 1GCGK24N0S Truck came for stalling at idle and would start right back up.When driving its okay.Check throttle position sensor and scan tool was showing wierd voltages.When at idle it dies but not all the time.Cold has fast idle and doesnt happen.When dies its hard starti...	View
	2000 Chevrolet Blazer LS 4.3L transmission VIN: 1GNDT13W1Y Hello every one,I have this 2000 blazer that the 4 wheel would not engage in a snow storm,had to be pulled out a number of times during her mail route,it is a np233 transfer case first the lights would flash but would not go into 4 wheel got a code 2 flash cod...	View
	2002 Chevrolet S10 2.2L Hydraulic System VIN: 1GCCS14502 First Off This Is A Comercial Vehicle For The Railroad. It Is used Around The Railyards Not Running Up & Down The Highway So Much. We Replaced the Slave Cyl. On 9/17/12 Because It Leaked Fluid And Caused The Clutch Not To Work. Then Truck Came Back On 10/11/12...	View
	2003 Chevrolet Trailblazer LT 4.2L MIL Lamp on VIN: 1GNES16S63 Sets code p1345 - cam/crank position correlation. Problem is intermittent, happens every couple of days according to customer. Freeze frame data shows it happens 8-9 seconds after engine start up cold - CTS shows 46 deg. Desired cam pos. and actual cam positio... Trouble codes: P1345	View
	2003 Chevrolet Blazer LS 4.3L front axle will not engage VIN: 1GNDT13X43 hello every one this t10 blazer is confusing the hell out of me and alldata does not seem to provide any discrition on how the whole system functions.i replace the vacuum actuator because it would not hold vacuum,after replacement still no engagement and actua...	View
	2003 Chevrolet C4500 Kodiak C4C042 6.6L low engine temp VIN: 1GBC4E1173 Hey duramax techs, looking for a little help on this one. This truck came in with the complaint that the temp gauge reads low all the time. ECT readings verified very low temp, gauge sweeps normally. I replaced both thermostats, I found the t/stats in the inco...	View
	2005 Chevrolet Uplander LS 3.5L Misfire VIN: 1GNDV23L05 Came in with check engine light. Change plug wires, EGR,SPARK PLUGS, COIL PACK , CHECK a/f sensor ,airfilter, fuel pressure,and still same thing. anyone have more info that will help. thank you Trouble codes: P0300 (Random misfire), P0306 (Misfire on 6 cylinder)	View
	2009 Chevrolet Uplander LT 3.9L Sensors, Module VIN: 1GNDV33189 no more than 1.6 v on sensors. RF have .6v and inop. Other have 1.6 v and works properly. Supposed to have 5v. I tried a new module, don't works. Sensor wiring is good, some body help??	View
	2004 Chrysler Sebring LX 2.4L Surge, Cuts out VIN: 1C3EL46X74 Car originally came in with check engine light and interemittent surging. I was able to pull codes using DRB III. As follows p0340, p0344, p0016. Ran diag for codes and came back with faulty cam sensor. Knowning the cam and crank sensor problems I replaced the... Trouble codes: P0340, P0344, P0016	View
	1998 Dodge B3500 5.9L pedal travel VIN: 2B7LB31Z6W Hello, I would like to thank anyone reading this in advance for your time. I have this dodge van 3500 with r.w.a.l. that is really a church bus, the brake pedal goes nearly to the floor and only actuates the front brakes, it has a new master cylinder we put on...	View
	2003 Dodge Durango SLT 4.7L Engine Head Passanger Side VIN: 1D4HS48N03 WE GOT THIS DURANGO LIKE THREE MOUNTS AGO , for reposition timing chain passanger side, (consumer remove and replace passanger side head assy. for some reason ,and replace head gasket . timing chain set, camshaft sensor ,)still no start,thats when decide to br...	View
	2006 Dodge Charger SXT 3.5L transmission VIN: 2B3KA43G76 Hi all, I have this charger here that has no speed showing on the scanner in either rear wheel. The transmission also will not shift out of low gear. The customer maintains this happened all at once. Now if I remove the rear sensors and take a magnet and pass... Trouble codes: U140C, U140B, P0501	View
	1995 Ford Mustang 3.8L engine VIN: 1FALP4045S i didnt check timing yet car is vibrating real bad like wires were crossed worse when in gear runs ok no stalling or chugging or loading up ...shacing so bad you think windsheild is going to fall out	View
	2002 Ford Explorer XLT 4.0L Transfer case VIN: 1FMZU73E02 Customer complaint is of a surge while driving. Customer test drive with service manager found suspected unwarranted automatic 4x4 engagement. Concern is very intermittent. Found intermittent 4x4 PWM command when driving on dry pavement; no loss of traction, b...	View
	2006 Ford F-350 Super Duty XLT 6.0L Hesitation, Surge VIN: 1FTWW31P76 Truck will start up n run beautiful as soon as u come off idle it surges bucks and smokes like a bastard every once in a while it will have no issues and runs beautiful, 90% of the time it craps out	View
	2003 Kia Sorento EX 3.5L engine VIN: KNDJD73393 I need help from Kia Techs. I have this Sorento 2003. This vehicle came for engine head gasket. We removed the engine make the head work replaced water pump, timing belt tensioners including hydraulic tensioner and timing belt. I’m not the technician that disa...	View
	2004 Mitsubishi Galant ES 2.4L Poor Idle Quality, Stall VIN: 4A3AB36F04 Vehicle has no power and check engine light is on. I road tested and before i was even out of the driveway i could was low on power. Connected scan tool and got a code for B1S1 O2 sensor. Found that O2 sensor was left unplugged when customer replaced crank sen...	View
	2005 Mitsubishi Galant GTS 3.8L lifters VIN: 4A3AB76S85 Engine has very noisy lifters intermittently, usually after cold start. Oil pressure checks good. Pulled oil pan and checked for sludge, it was clean. Have changed the oil and filter twice. Used OE filter. I can race the engine up for a while to get the lifter...	View
	1992 Nissan Pathfinder SE 3.0L drivability VIN: JN8HD17Y7N vehicle was towed into shop with a no start condition. after finding it had fuel and spark i removed spark plugs and found them to be fuel fouled, cleaned plugs and disabled fuel pump cranked engine to run excess fuel out of system. reinstalled plugs slowly in...	View
	1998 Nissan Altima GLE 2.4L No Start VIN: 1N4DL01D4W Car came in for no-start. Checked all power and grounds to ecm and wiring to distributor. No spark, but everything else seemed ok. Flow chart stated to replace distributor. Replaced distributor and immediately started and ran. Test drove vehicle for a couple o...	View
	2002 Nissan P12 PRIMERA 2000CC 1-2 shift I carried out a diagnostic scan on the vehicle's entire system, cleared all codes and test drove the vehicle, and this is the problem found, no shift from 1-2. The car doesn't shift out of 1st gear, reverse is good. When i scanned it again I found the above me...	View
	2004 Nissan 350Z 3.5L Poor Idle Quality VIN: JN1AZ34014 Customer brought car to shop for po507 code and idle speed is 1100 rpm. They replaced the throttle body assembly and performed idle air volume relearn through consult 3 and to no avail. Disconnected 3 injectors and still will not relearn. I have a nissan consu... Trouble codes: P0507	View
	1998 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF18B7W Ok I have code P0664 EVAP Vent Control Fault. Can anyone tell me exactly how this system is suppost to work? Mitchells information Leaves me with more questions than answers. Commanded VSV on and no change in flow through VSV. Flow through VSV all the time.did... Trouble codes: P0446 (EVAP Vent Control Fault)	View
	2005 Volkswagen Jetta GLS 2.0L no dash lights VIN: 3VWSA69M65 car came in with no dash lights, we replaced the rheostate but no change any ideas, thanks for any help william	View
	2005 Volvo XC70 2.5L MIL Lamp on VIN: YV1SZ592X5 Volvo techs help!! i have one driving me crazy.it started out with multible lean codes and air flow related codes.i lost my original list.i replaced the airflow sensor and the front o2 sensor.put clamps on several vac connections to correct tiny leaks.now ther... Trouble codes: 120D	View
	2006 Volvo S40 2.4i 2.4L Fuel Gauge,Window,Wipers SRS, Directionals VIN: YV1MS38236 Veh. Towed in with wiper running,windows inop,SRS light on,fuel gauge inop no communication with modules	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2005 BMW 645Ci 4.4L active steering VIN: WBAEK73475 I want to thank all that replied. This car is now fixed and can go home. It turned out that I had forgotten bout the connector on top of the active steering motor and wasn't visible without taking down the lower wheel well cover. Rookie mistake but I learne...	7
	2004 Buick Rendezvous Ultra 3.6L Right front headlamp and fog lamp dim VIN: 3G5DB03704 Thanks for all your replies. Almost all of you were right. Bad Ground just behind the right headlight in front of the battery. Remove the 10 mm bolt and clean all rust, reinstalled and all lighting problems are fixed. Thanks again.	20
	2003 Chevrolet Malibu 3.1L Battery VIN: 1G1ND52J53 Some replies said should be 25mA or less of a draw. Others stated that the modules must go to sleep and some said the key in switch could be bad. I rigged up some jumper wires to power up the system and removed the jumper after 30 minutes with my ammeter hooke...	10
	2013 Chevrolet Malibu LT 2.0L Bcm VIN: 1G1PE5SB6D A new wiring harness is not available yet for the car. Looking at getting one from a dry wreck donor.	29
	2001 Chrysler Town & Country LX 3.3L dash VIN: 2C8GP44331 I was told there were no problems before the repair. I was then asked to look at the wipers as they were not working at times. I asked the Wife at this time about the cluster and it was also going out sometimes. I know now the body control module is bad.	7
	1995 Dodge Avenger ES 2.5L Engine VIN: 4B3AU52N8S further checks of the car have revealed that either the pcm is problematic or the timing is off. a check of the aldl showed at first that there was ground present but after i tried to start the car the aldl lost even that and now the car won't crank. something...	18
	1996 Ford Thunderbird LX 3.8L Check Engine Light VIN: 1FALP6247T Thanks for all the info. I was wondering about the syncro. The customer declined the repair at this time. When he cant get it through emissions then im sure it'll be back. Trouble codes: P0340 (Cmp Sensor Ckt).	9
	1997 Ford Explorer Eddie Bauer 4.0L Gem Module VIN: 1FMDU34X7V This vehicle had an incorrect aftermarket turn signal/hazard flasher previously installed keeping the GEM Module from going to sleep causing a drain. Installed the correct electronic flasher and now all my codes in the GEM are gonna and all the instrument clus...	6
	2002 Ford Explorer XLT 4.0L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FMZU63K52 thank you very much guy for your help , but the vehicle is running much better after replace the air flow meter , but the owner of the vehicle is going to take the vehicle to the dealer to reflash the computer , but he didn't do it yet is been a month already ... Trouble codes: P0172, P0175.	19
	2004 Ford F-350 Super Duty Harley-Davidson Edition 6.0L No Start VIN: 1FDWF36P94 This truck has not yet been repaired. To say the least, customer is EXTREMELY upset with Ford Motor Company. Having a truck with only 48K on the clock, with this type of issue. Upon further testing it was found that cylinder #3,4 &6 were low on compression,#1 ...	25
	2004 Ford Explorer XLT 4.0L No Start VIN: 1FMDU73K94 Hey everyone, thank you alot for all the information posted. I ended up replacing the coolant sensor, but this is just a shot in the dark. Everyone had some very good points that I had not thought about. The customer finally took this vehicle and when he comes...	21
	2005 Ford F-150 FX4 5.4L 4x4 VIN: 1FTPW14555 well figured this out it turned out to be the pcm if there are power and grounds to the 4x4 side of the pcm and no communication it left only one thing i installed the pcm and programed everthing works good thanks for the help	3
	2005 Ford Escape XLT 3.0L Noise VIN: 1FMYU93155 Thanks to everyone for the repllies. The number of responses were overwelming. Sadly enough the customer did not want to spend any additiona time on this vehcile and it went on its merry way. I have no great ending to share for this very very odd noise.	27
	2006 Ford F-550 Super Duty XLT 6.0L low pressure oil pump VIN: 1FDAW57PX6 Pretty much sounds like any time you have engine failure replace complete assy. We are going to get a used engine to put in it. I did get a sugestion to run over with a dozer...that was my favorite!	8
	2008 Ford F-250 Super Duty XLT 6.4L Cooling Systems VIN: 1FTSW21RX8 Thanks to all who replied. The customer does not want to make any repairs at this time. In all my testing I truly believe this to be a head gasket issue.	13
	1996 GMC K2500 Sierra SL 6.5L No Start VIN: 1GTGK24F6T hey everybody! im sorry but I will have to close this post.told the owner that I need to spend some time on it but I ask him to pay his previous bill so I put the truck in the parking lot and I am waiting for him to show up with the money!if he decide to go f... Trouble codes: P1218.	21
	1996 Honda Civic DX 1.6L speedo VIN: 2HGEJ6657T There is a bus bar style connector under intake manifold with 14 wire connections 7 blk yel 7 grn blk cut this off and joined the two sets of 7 together,could not see any corrsion but this fixed it.	6
	2006 Hummer H3 3.5L MIL Lamp on VIN: 5GTDN13636 testing found intake leaking vacuum at pcv tube.customer declined repairs at this time.thank you for all tips on repair. Trouble codes: P0171.	6
	2002 Hyundai Accent L 1.5L Poor Fuel Economy, hard start VIN: KMHCF35G02 Thanks to everyone who took the time to reply.We have repaired the hard start after fueling. It was the purge valve. I knew it was defective because I could make it stick open when I would turn it on and off. I was concerned about the carbon canister but after... Trouble codes: P0441 (EVAP System incorrect/no purge), P0442 (EVAP Small leak), P0130 (O2 Sensor fault bank 1 Sensor 1).	9
	1997 Pontiac Trans Sport 3.4L MIL Lamp on VIN: 1GMDX03E6V Thank You all for your great info! Wire to relay from ECM rubbed threw/broken. IATN and it's members are the best! Trouble codes: P1651 (manufactures control auxiliary inputs auxiliary outputs).	5
	2004 Pontiac Grand Prix GT1 3.8L Cuts out VIN: 2G2WP52204 After extensive diagnose I believe I have found the problem. After many Tech 2 snapshots and reviewing the usual suspects I decided to monitor the 5 volt reference signal (CKT 432 Lt Gn wire) to the pcm from the TP sensor. It was being intermittently being pul...	18
	2002 Saturn L100 2.2L No Start VIN: 1G8JS54F12 Thanks to all that replied. The fix was to replace and flash a new oem BCM. I tried a used BCM but could not get it to even flash the security light or reset key.It acted just the same as not being plugged in. As soon as I plugged in the new one before having ... Trouble codes: B2957 (Data shorted to ground), B2960 (Passlock cylinder incorrect), P1599 (Engine stall or near stall), B2623 (u1000-), U1000 (u1096-), U1096 (testing and results).	10
	2007 Saturn Ion-2 2.2L lf headlight VIN: 1G8AJ55FX7 Changed harness in headlight,GM does have a recall on some of the older ions,someone may have put a used older light in this or the recall has not caught up to it yet	27
	2002 Suzuki Aerio S 2.0L Poor Idle Quality, Stall VIN: JS2RA41S02 Good news (at least for me and my customer). We found the problem and fixed it. It turns out, as I suspected, the MAF that we got from an internet source was scaled wrong. I knew that 5 g/s was way too high for idle but since the original maf gave me a simula...	13
	2007 Volvo XC70 2.5L No Start VIN: YV4SZ59267 Thanks to all those who replied. This vehicle would never fail to start for me. The customer needed it back as they needed their second vehicle fixed. They will bring it back at a later date to be repaired.	9

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