Two problems related to engine belts and pulleys have been reported for the 2003 Ford Explorer Sport Trac. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Ford Explorer Sport Trac based on all problems reported for the 2003 Explorer Sport Trac.
Took vehicle in fluid changes, complete check, and to investigate a leak under vehicle. After "complete" check said they found bad serpentine belt, air filter and but nothing valve cover gaskets as cause of leak. Cost to repair gaskets over $1000. While doing repair they called again and said they found that the rear timing cartridge was broken and pieces of it missing. Told me that bolt was wore half way through as timing chaining was rubbing it. Said if it breaks before repair engine will "blow" and need to be replaced. Told me it would costs over $2,500 to replace this cartridge. Total cost was now over $4,000. I asked why part was bad when engine only had 84,000 miles and why this wasn't found with the "complete" check. Mechanic stated only saw it because he had things apart to fix valve cover gaskets. Told me it was a plastic part and even with low mileage the plastic deteriorates with time. Said part only designed to last 100,000 miles. If I am to believe this Ford mechanic, Ford uses a plastic part in a crucial part of the engine (timing) and if that part fails the engine will "blow". And they cannot know the part is bad unless they have the engine apart for other major repairs. So if the valve cover gaskets were not leaking the issue would have been undetected by the Ford maintenance "complete" check up. In addition Ford has not issued a warning that this engine will possibly "blow" after only 100,000 miles if this part not replaced by a $2,500. 00 - $3,000. 00 repair. Ford should pay for this repair. They design a vehicle this way with no warning to the buyers/owners. If I am to believe the Ford mechanic there is no way to really know you may have a problem. How are we to protect ourselves? my friend showed me this site and did some searching on other blogs/sites dealing with vehicle issues. There are numerous cases of this unacceptable issue.
Constant loud squeal coming from serpentine belt, replaced by dealership and I had to purchase, still squeal, warranty and replaced, still squealed dealership called Ford, Ford suggested stronger belt that normally does not go in this truck. Currently no squeal. Total belts: 4.