Timing Tensioner Problems of Ford Explorer Sport Trac

After turning onto the main road out of our subdivision the vehicle shut down and would not start. The car behind us nearly ran into the back of the vehicle. It appears there is a design flaw in the tensioners used for the timing chains on the motor in this vehicle. The tensioners are a plastic that cannot hold up to the heat and eventually deteriorate prematurely. Apparently when one of them fails the vehicle automatically shuts off the engine causing the driver to lose control.

See all problems of the 2008 Ford Explorer Sport Trac 🔎.

The rising price of gas discouraged me from using my sport trac (st) often, so it was garaged during the work week. On the weekends, I usually drove the st to run errands around town. On Jan 28, 2012, I drove less than a mile when my st began losing throttle response and an unfamiliar clattering can be heard generated in the engine bay. I quickly realized that this was not normal, so I proceeded to pull over. I then took the truck to a mechanic near my location. The mechanic after extensive diagnosis determined that the timing chain tensioner had failed, along with timing chain guides which shattered into multiple pieces (photos available). The timing chain and its components are suppose to last for a lifetime of the vehicle, and hence Ford provided no information or provision for its maintenance. The repair was expensive, because it required the removal of the engine which is based on the sohc design having its right camshaft driven by a timing chain located behind the engine near the firewall. A recall of the timing chain guides and tensioner should be made because of the common problem this has been for this engine design, sohc 4. 0l after the removal of the engine and timing chain guide replacement, my vehicle began to experience transmission failure. The transmission registered an error on my dashboard, and after consultation with an expert, required a transmission rebuild. The cost of the engine and the transmission rebuild has been very expensive to say the least. The unpredictable nature of this failures would compromise safety during high speed operations. I hope NHTSA will review complaints regarding timing chain and transmission failures, which should reveal a pattern of design failures at Ford. Interestingly, Ford had issued a recall for the timing chain tensioners and engine removal to repair chain guides in the past.

See all problems of the 2001 Ford Explorer Sport Trac 🔎.

Currently Ford has an extended warranty program under onp 00m12 which extends the warranty for the timing chain tensioner on, but not limited to, 2001 Explorer Sport Tracs. According to Ford's system, my car, while a 2001 sport trac with the sohc motor, is not covered. I am at this time experiencing the exact problem that they are covering under this extension, but for some reason my car is excluded. I called customer service and they had no information why my car was not covered, but did admit that 2001 sport tracs were part of this extended covereage. They would not provide any details or facts to support their reasoning. It is apparent that this is a problem for the sohc motors, thus the reason for the extended warranty. However, my car seems to be not part of this program, thus not covered by this warranty, yet I am having the same issue as what is covered.