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Prev Professional Automotive Repair Technical Discussions for March 30, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
1993 BMW 318i 1.8L mixture formation VIN: WBACA42000
eng starts ,runs normal,when acelerating from rest under full throttle sticks in 3rd gear will go into 4th after driving a few kilometers at normal throttle,then pull up to idle engine surges badly then will cut out,wait a few moments then restart all okay til...
1995 Chevrolet Corsica 2.2L Spark Control VIN: 1G1LD5543S
Vehicle came in with a seized motor (Walmart installed wrong filter). Installed a used engine from a 1999 Chevy Cavalier. The Head, intake, ect... Had to be used from the original engine. The lower end looked the same other than the original block had only a c...
2004 Chevrolet Trailblazer LS 4.2L torque converter VIN: 1GNDT13SX4
This Trailblazer has a bearing noise only when the torque converter is locked. The noise is very similar to a bad idler for a serp belt. I can observe converter with tech2 and amplify the noise using a chassis ear clamped on the trans and the noise definitely ...
2007 Chevrolet Silverado 2500 HD LT 6.0L Transfer Case Module VIN: 1GCHK23K77
Hey guys need some help on this. Customer came in with a message in the instrument cluster " service 4 wheel drive system" hooked the scanner up to it and i could not communicate with the tcsm( transfer case shift module) i can communicate with everything else...
2008 Dodge Grand Caravan SE 3.3L Hesitation, Stall, Misfire VIN: 2D8HN44H08
Customer complaint of hesitation and stalling when change gears and at idle. Vehicle misfires intermittently and stalls. I was able to get it to stall in the shop by switching gears back and forth from drive to reverse. When van acts up I am able to see on sca... Trouble codes: P0339 (p1128-), P1128 (p0300-), P0300
1994 Ford Aspire 1.3L lack of power VIN: KNJLT05H2R
I have this fine gem in for a lack of power. The customer said he drove it to work, ran fine. Got in after work and started it and it has no power. I have checked codes and had no codes. In the process of cleaning the MAF sensor i broke it and had to replace i...
1998 Ford Mustang GT 4.6L Rear wheel bearings VIN: 1FAFP45X4W
The car has the typical growling noise from the back that bad wheel bearings make so we replaced both with SKF brand bearings, used Mobil 1 75W-140 fluid and a bottle of Motorcraft XL3 additive. Afterwards the same noise is still there. Could the axleshafts be...
2001 Ford Taurus SE 3.0L Battery Discharging VIN: 1FAFP58U41
Thank you in advance for taking time to read this. I originally posted this as a " NO CHARGING", and thought a warranty alternator had fixed it. Start the car the "BATTERY Light" in the cluster is on, not very brightly, but you can see it. Check the voltage a...
2002 Ford Explorer Sport Trac XL 4.0L Poor Fuel Economy, MIL Lamp on VIN: 1FMZU77E52
This one has me stumped. Thought this would be a simple fix with a t stat. Looking for hidden radiator or resevior. I cant make this truck get hot unless I disable the cooling fan. Fan is not locked and will almost freewheel. I can stop it with a piece of card... Trouble codes: P0125
2006 Ford F-150 XLT 5.4L Engine VIN: 1FTPX14566
This truck was sold at a local Carlot. Customer tried to default cause of an oil leak so Carlot paid another shop to fix it. A day after customer picked it up ,it started smokin out exhaust and from under the hood. Also startedknocking and misfiring. Customer ...
2002 Honda Civic LX 1.7L No Start VIN: JHMES16552
the p0118 code is the only code showing. when code is cleared, it reappears. tested continuity from chassi ground to ect selonid ground. tested pin 4 & 5 in DLC. 5 grounded but 4 did not. pulled out passenger seat to check ground. Trouble codes: P0118
1998 Jeep Grand Cherokee 5.9 Limited 5.9L Mechanical VIN: 1J4GZ88Z2W
I got this 1998 Jeep Grand Cherokee Driving me crazy, I cant figure out why the belt is Squeaking, New Belt , New Tensoiner,New Idler Pulley & Still Squeak, replace another belt thought may this belt is defect, no luck,, Crankshaft Pulley tested okay all pulle...
2008 Jeep Wrangler Sahara 3.8L Mechanical VIN: 1J4GA54118
Hi, This jeep has been well maintened oil change every 10K km.After 25K km it started to burn some oil and it's progressive. We changed the valve seals at 37K but it still burns 500g oil per 1000km. Any ideas what could be wrong? BR Rasmus
2003 Land Rover Discovery SE 4.6L Transmission VIN: SALTY16483
To all my Land Rover mechanics. I NEED HELP!!! My customer bought this vehicle with this problem and Land Rover says there is no problem:( What happens is that for no aparent reason the "M" & "S" lights start flashing and the shift indicator on the dash goes a...
2010 Mazda 3 S 2.5L Eps VIN: JM1BL1H58A
Got this from local bodyshop with EPS(steering) light on and Skid Control disable warning on(because of EPS, I'm ASSUMING!!!). Bodyshop put a used EPS assy in RF area. Now the warning lights are on for EPS(steering wheel icon) and DSC icon. Only codes are U014...
1999 Mercedes-Benz CLK430 4.3L Limp Mode VIN: WDBLJ70G8X
Swapped a 722.632 with a damaged center planetary , with a 722.604 from a 1997 c280. Had to swap bell housing and torque converter with drive shaft flange. I cleaned valve body and tested all sensors and actuators in valve body. From my understanding there sho...
1999 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NE12T5X
this ones got me rattled. came in as a no start but almost would. low battery. charged battery. check codes with my mack scanner. had po300. engaged starter, acted flooded but did start, ran rough but cleared up. ran for a cpl minutes then just died. no restar... Trouble codes: P0300, P1626
2008 Pontiac Wave 1.6L MIL Lamp on VIN: KL2TD65648
This vehicle has been coming in since Feb,2012 with p2135 TP SENSOR 1-2 CORRELATION, I started off by clearing all codes and road testing. It never acted up so cust. took vehicle and in a few day's the SES LIGHT returned. I rescanned and found again P2135. I t... Trouble codes: P2106 (Throttle control system performance - throttle limitation active), P2110 (Tac system-forced limited eng speed), P2135 (Tp sensor 1-2 correlation), P2101 (Tac motor circuit range/performance)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 323Ci 2.5L Turbin Speed Sensor VIN: WBABR3342Y
Many responses said it is a "Hall Effect" sensor, so a resistance check is meaningless. The resistance values I found for it may have been for an earlier or later model.(?) I thought all hall effect sensors required 3-wires. It must be scoped to verify its ope...
2004 BMW 325i 2.5L Misfire VIN: WBAET37414
thanks for all the replies they were very helpful.we did running and cranking compression test cranking was 180psi running was 170 we found when we unplugged vanos solenoid on intake cam car ran considerably better no misfires plenty of power.indentifix hotlin... Trouble codes: P0305, P0306, P0300.
2008 BMW X3 3.0si 3.0L Engine VIN: WBXPC93448
Thank you for all the good info. Replacing the valve cover took care of the problem
2005 Ford F-250 Super Duty Lariat 6.0L Hesitation, Sluggish start VIN: 1FTSX21PX5
Found to be a bad ICP sensor / connector. I always replace the connector when replacing an ICP or EBP sensor (same connector). Readings were in normal values but not actual correct pressure. Only indicator was inconsistent KOEO pressure reading. Seemed to ...
2003 Hummer H2 6.0L shifting VIN: 5GRGN23U13
i want to thank all 7 replies from technicians who responded to my help. removed the solenoids and bench tested them w/ a power probe only to find out that they were good, so i decided to check for technical service bulletins and i found SB# 01-[...] that t...
2002 Land Rover Discovery Series II SE 4.0L No Start, Stall VIN: SALTY15402
Hello and thank you to all who responded to this post. Well the Carolinas have it. Both Thomas and Jason hit it. The MAF sensor was out of the circuit. But no codes. Very strange. I unplugged the MAF and the engine would stay running. Not very well but it ran...
2007 Nissan Xterra X 4.0L Rear differential VIN: 5N1AN08W37
Ok, so my customer has gone AWOL after promising me that he would update me after getting the vehicle back from the dealer. I'm going to close this request for now and I will update if he ever gets back to me. Thanks to all who replied!
2006 Porsche Cayenne S 4.5L Mechanical VIN: WP1AB29P56
Thank you to all that responded! It turns out the superceded Porsche factory pads were the problem, the cut on the backing steel plate was left a hair short and the pad fit loosely in the caliper and that my friends caused the loud clicking going backwards an...
1996 Toyota 4Runner Limited 3.4L Flex Plate VIN: JT3HN87R1T
i would like to thank everyone that replied,alot of you said to check the dowel pins for missing or damaged. well after checking everything possible we decided to remove the metal plate between the engine an trans. an there it was, where the top dowel went int...
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