My 99 Dodge Durango starts good runs good one day on freeway it died and about 20 minutes later started up again this has happened twice I'm afraid to drive it. I've been told it could be a distributor cap. Someone help Please!

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thanks

Hi
Please check the fuel pump condition first.
Thanks

It wouldn't stop the engine from turning over while trying to start. But it can make engine not start or run poorly

Its probably your computer. Had the same thing happen to me about ten years back. About 500 dollars. better off finding one on ebay or at a junk yard.

What does it do, if you try to accelerate when this starts to happen? If it dies,sputters or is sluggish, I'd start by changing fuel filter, and if that doesn't help, have fuel pressure tested when (if at all possible) this begins to happen. Had similar problem, winter was fine, hot weather it would die, and restart after 20 minutes or so, then go a fair distance again, then same thing. Fuel pump was on it's way out and when it got hot, fuel pressure would drop. First thing in the morning when fuel in tank and pump was cool, ran like a charm, but on way home from work, after sitting on a hot day, fuel got warm/hot, and pump heated up and that's when it started. Carried a fuel pressure gauge with me. Fuel pressure when cool, was 49 psi, and when it got hot, eventually dropped off to 2 psi. Sat for 20 minutes, jumped back up to 49psi, took off for home,then would eventually get lower and die again. Changed pump and filter, all was well. Try filter first, you have nothing to lose, and it should be changed if pump replaced later anyway.

Check the fuel pump relay, it should be in the underhood fuse box, and could cause the problem your describing. Buy one at the parts store ( quite inexpensive) and try replacing it before going to the pump itself.

What engine? 2.4 or 2.5

When it dies does it start back up? Does it have spark when it dies?

i would check your ignition system. you would need a meter for this but look for broke or loose connections. if it was a fuel problem i dont think it would just start up after 20 minutes. or you might try your ignition switch. if its shorting or something then ya well it would cut your engine off real quick

Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.