FIXES OF THE WEEK

The fixes below are examples of head scratchers posted by our Direct-Hit customers. For a chance to win a free pizza lunch for your shop, post your unique fixes in Direct-Hit. Just look up the vehicle you're working on, click on Post Fix at the top right and tell us the problem and what you did to fix it.
 

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Posted Fix Information

ASIAN FIX
Posted By: V & V Automotive, Identifix User
Problem Description:
This 2003 Sorento came to us about five months ago with a high idle (2200 rpm) when cold. We kept it overnight to check all the...
Posted Date:
06/07/2014
 
Confirmed Fix:
Intake Air Bypass Control Thermal Valve
 
Problem Description:
This 2003 Sorento came to us about five months ago with a high idle (2200 rpm) when cold. We kept it overnight to check all the temperature readings when cold which checked out OK. We had done a timing belt and water pump prior so I pulled the front back apart to make sure all timing marks were good and of course they were spot on. I ended up trying an ISC motor which was of no help. Tried an updated TPS which didn't help. I had multiple hours in it at this point and ended up taking it to the dealer. They sold us a throttle body gasket and re-flashed the computer. Charged us $200 and said it was fixed. We shipped the car without keeping it overnight because the customer needed it badly. Of course, two days later they called and said its doing the same thing. They finally were able to leave the car with me again and I just dove in, checking everything, AGAIN. I saw in the data stream that the ISC step counts were in the negatives, which I had noticed before. It came to my conclusion that this had to be a "metered air" vacuum leak. I pulled the throttle body and dissected it. I ended up finding a coolant controlled idle control valve that was stuck open. I tapped on it with a small hammer and it popped back into the closed position. I cleaned it up, installed it and BAM!!!! Fixed!!!! I am ordering a new throttle body because you can't buy this valve separately. But why didn't the DEALER find this issue?????? I'm just glad I'm able to finally post a fix. I was on the hotline months ago about this problem and they were stumped also..........
 
Vehicle Description:
2003 Kia Sorento EX 3.5L
 
Category:
Engine Performance
   Idle Speed/Stability
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EUROPEAN FIX
Posted By: Morrisburg Autopro, Cindy Wolfe
Problem Description:
Vehicle came in with a customer complaint of not being able to go over 3000 rpm. Bogging and choking. Customer said if he...
Posted Date:
10/29/2014
 
Confirmed Fix:
Knock Sensor Bolt
 
Problem Description:
Vehicle came in with a customer complaint of not being able to go over 3000 rpm. Bogging and choking. Customer said if he accelerated very slowly he could get it to shift gears. During a test drive we verified the complaint. Transmission shifts were normal, however the rev limiter was engaging at 3000 rpm. Scanned for codes and found code P0332 Knock Sensor 2 upon further diagnoses. Checked for 5 volt reference at the gray connector on the side of the head and it was good. Found on a Volkswagen forum that there were a small number of these cars built on a specific date that had a torque wrench that was out of calibration that tightened Knock Sensor 2 to the block. Checked the torque of Knock Sensor 1 and found it correct at 25 NM but when I checked Knock Sensor 2 it was only at 14NM. After re-torquing Knock Sensor 2, the vehicle test drove perfectly. Cleared the trouble code and the car has been fine ever since.
 
Vehicle Description:
2009 Volkswagen Rabbit S 2.5L
 
Category:
~
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GM FIX
Posted By: Sauer's 66 Service Inc, Rob Sauer
Problem Description:
Symptoms: MIL light on, engine sluggish, lacks power and has a slightly rough idle. Trouble code P0332 is...
Posted Date:
07/23/2014
 
Confirmed Fix:
Knock Sensor (KS) Wiring
 
Problem Description:
Symptoms: MIL light on, engine sluggish, lacks power and has a slightly rough idle. Trouble code P0332 is present.
Diagnostic steps: Checked voltage between both wires and ground at Knock Sensor 2 with sensor disconnected. LT BLUE wire was 1.1 volts and GRAY wire was 1.9 volts...it should be 2-3 volts. With a DVM connected, performed a ""wiggle"" test on the harness and the reading changed to 2.47 volts.
Fix: Found harness rubbing against the left front valve cover mounting stud. Repaired the harness.
 
Vehicle Description:
2010 GMC Sierra 2500 HD SLE 6.0L Vin G
 
Category:
Engine Performance
   Idle Speed/Stability
   Low Power
   Other Engine Performance Problems
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CHRYSLER FIX
Posted By: Double R Automotive, Ron Martin
Problem Description:
No A/C clutch application, works fine if you put battery voltage to it. Tried a new TIPM because input was steady at 12v and the...
Posted Date:
08/22/2014
 
Confirmed Fix:
Air Conditioning (A/C) Compressor
 
Problem Description:
No A/C clutch application, works fine if you put battery voltage to it. Tried a new TIPM because input was steady at 12v and the PCM was grounding the TIPM. The A/C compressor would cycle very fast. Checked codes again and had a code for high amperage in the compressor clutch circuit. Replaced the A/C compressor and and the A/C works fine. The old clutch - 2.2 ohms and the new clutch - 3.9 ohms
 
Vehicle Description:
2007 Dodge Ram 2500 SLT 5.9L Vin C
 
Category:
Heating, Ventilation, and Air Conditioning
   A/C Compressor Clutch
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FORD FIX
Posted By: Gulf Auto Clinic, LORIN MARTIN
Problem Description:
Vehicle stalls intermittently. Examine the wiring to the right side of the battery, near the EGR tube. This is a bad spot for...
Posted Date:
06/18/2014
 
Confirmed Fix:
Engine Wiring Harness Near EGR Flow Tube
 
Problem Description:
Vehicle stalls intermittently. Examine the wiring to the right side of the battery, near the EGR tube. This is a bad spot for wires chafing/rubbing on the hot EGR tube. The heat protective wrap/cloth will fall away, the protective wire loom gets hot and falls off, letting the bare wires to rub and short to ground. Look very carefully at this area.
 
Vehicle Description:
2003 Ford Focus ZTW 2.0L Vin 3
 
Category:
Engine Performance
   Starting
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