Two problems related to engine stall have been reported for the 2003 Ford Ranger. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Ford Ranger based on all problems reported for the 2003 Ranger.
2003 Ford Ranger 4. 0l 4wd at. Two of the six valve seats in the engine dropped causing the engine to lose compression after less than 70k miles. Noticed loss of power, took it in and had to pay over $2k in repairs even though it was still under warranty. The valve seats were replaced. The problem was fixed but a few months later while merging to freeway speeds the car stalled and would not re-start. Towed it in to find that the engine had jumped timing and bent all six crank arms. Again, repairs were made. Top end of the engine was replaced including the cranks. This is ridiculous for a truck with less than $70k miles on. I feel the original repair costs upwards of $2,000. 00 should have been covered under the warranty as it was an internal engine issue and been reimbursed. Also a new engine should be installed or vehicle traded as this engine is obviously defective. All the meanwhile the main reason for taking the vehicle in for repairs three times prior was to fix the huge thump and delay on acceleration that almost caused me to get in an accident! the dealer said this was normal for 4wd trucks and there was nothing wrong with it. Yet every 4wd I've driven, even ones with over 100k miles on them, accelerate smoothly with no thumping or delay in acceleration. Nearing the expiration on my warranty due to mileage, I feel the dealership was trying to push the actual repairs off until then. They even said that the cause of the thump was that the transmission mounts were loose. So they "repaired" that but it had no effect and the issue still remains. This is where I stand currently and am trying to get the truck back in the shop, once again, to have this issue fixed so that I do not actually get in an accident. And to add to that, there is once again a loss in power, so we'll find out if the valve seats have once again dropped. . .
Brake and engine problems. The rotors were turned on the front brakes and a idler was installed because the engine stalled out. (twice after that the vehicle was returned the vehicle for the same problem).