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: Just Right Auto Repair, Lindley Knight
Problem Description:
Vehicle was towed in. It has no power and the transmission is stuck in third gear (limp home mode). Attempted to communicate with...
Posted Date:
02/06/2014
 
Confirmed Fix:
Repaired Engine Wiring Harness
 
Problem Description:
Vehicle was towed in. It has no power and the transmission is stuck in third gear (limp home mode). Attempted to communicate with the scanner but was unable to access the PCM. All other systems had codes for CAN network connection loss as well as a U0100 trouble code. Tested for power and ground at the PCM and all were good. Inspected the wiring harnesses from each component, paying close attention to the transmission harness (prone to issues). Inspected the ABS harness and found a rub through on the air filter muffler box bracket (located under the driver's headlamp). Opened the harness and found two chaffed wires. Repaired the wires and was able to communicate with the PCM. Cleared all system codes. Vehicle is now fixed.
 
Vehicle Description:
2005 Mazda 6 S 3.0L
 
Category:
Engine Performance
   Check Engine Light (MIL)
   Low Power
Transmission (Automatic)
   Shifting Problems
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EUROPEAN FIX
Posted By: Bertco Automotive, Steve Bertelsman
Problem Description:
The vehicle was towed to the shop. The engine will only idle and will not accelerate at all. Confirmed the loss of fuel pressure...
Posted Date:
02/17/2014
 
Confirmed Fix:
Repaired Fuel Pump Wiring
 
Problem Description:
The vehicle was towed to the shop. The engine will only idle and will not accelerate at all. Confirmed the loss of fuel pressure to the point of the engine stalling. Gained access to the fuel pump, which is located under the back seat. Upon engine stall, noted a loss of 12V (Green wire) at the fuel pump. Traced the wiring to the loom on the outside in the driver's rear fender well. The Green fuel pump 12V wire was rotted through. When the vehicle was accelerated there was just enough body flex to cause a complete open in the wire. Repaired the wiring and test drove the vehicle and the problem is repaired.
 
Vehicle Description:
1998 Mercedes-Benz ML320 Base 3.2L
 
Category:
Engine Performance
   Stalling
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GM FIX
Posted By: Easton Auto Care Inc, Mark Patrick
Problem Description:
Soft brake pedal and air at the front brake calipers after brake pad replacement. The automated brake bleed procedure was of no...
Posted Date:
02/06/2014
 
Confirmed Fix:
Replaced Brake Master Cylinder
 
Problem Description:
Soft brake pedal and air at the front brake calipers after brake pad replacement. The automated brake bleed procedure was of no help. Did the manual brake bleed several times with no air at the rear but still a lot of air at the front. Tried the automated brake bleed a second time and as we finished the 3rd wheel the ABS pump quit and produced a trouble code C0550. After the truck sat for about
an hour the ABS pump started to work again. Performed a maser cylinder bleed and had no air. Replaced the master cylinder and the problem was solved.

 
Vehicle Description:
2008 Chevrolet Silverado 1500 LT 4.8L Vin C
 
Category:
Base Brakes/Parking Brake
   Braking Performance
   Other Base Brake/Parking Brake Problems
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CHRYSLER FIX
Posted By: Torchio's Auto Repair, Mike Bott
Problem Description:
The ASD fuse was blown. Disconnected the PCM connectors and then connected them one by one until the short showed up. The C3...
Posted Date:
03/03/2014
 
Confirmed Fix:
Repaired Alternator Wiring
 
Problem Description:
The ASD fuse was blown. Disconnected the PCM connectors and then connected them one by one until the short showed up. The C3 connector was the problem. Traced the problem to an alternator wire that was pulled tight over the transmission dipstick tube bracket. This created a direct short. Elongated the wire by soldering in a longer piece. Problem solved.
 
Vehicle Description:
2005 Jeep Wrangler Unlimited 4.0L Vin S
 
Category:
~
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FORD FIX
Posted By: Ronald Meservey Co, Ronald Meservey
Problem Description:
The engine will not start. It will not turn over. Found no ignition signal at the starter solenoid. The 40 amp fuse to the...
Posted Date:
02/14/2014
 
Confirmed Fix:
Repaired Starter Relay Wiring
 
Problem Description:
The engine will not start. It will not turn over. Found no ignition signal at the starter solenoid. The 40 amp fuse to the starter relay had blown. Created a jumper harness for the fuse to check the amperage draw during cranking. Only found a 16 amp draw. Removed the wire from the solenoid and held the key in the start position while performing a wiggle test. Had to remove the right front fender well to access the full harness. While wiggling the harness near the coil spring the amperage spiked and blew the fuse. Opened the wiring loom and taped it away from the wires. Found an area on the cross member, behind the coil spring, where the Brown/Green wire had rubbed through. Spliced in a new wire with heat shrink connectors. Re-taped the wiring and replaced the loom. Added coolant hose around the affected area and zip tied everything down to prevent future rubbing. There are several small wires, all in this loom, that could cause different issues. This one happened to be the signal wire to the starter.
 
Vehicle Description:
2011 Ford F-350 Super Duty XLT 6.7L Vin T
 
Category:
Engine Performance
   Starting
Starting and Charging
   Cranking
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