car dies while driving, sits for a bit and restarts on 1996 Volkswagen Jetta

car starts ok in the morn. but after driving for apx. 30 min it cuts out n dies, cranks n has full power but no grip, i let it sit for 20 to 45 min (progressively getting worse) and it starts. replaced plugs, wires, dist cap, rotor, cam seal, crank seal, fuel filter, timing belt n tensioner pulley, $1500.00 later it did the same darn thing so i dot know... maybe coil or fuel pump not too sure plz help...

by in Boise, ID on March 01, 2011
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1 answer 1 comment
ANSWER by , March 01, 2011
Sounds like the fuel pump may be failing. You could check for fuel pressure when you have the difficulty. If there's no fuel pressure, then check out the fuel system. If it has fuel pressure and won't run, check spark.
COMMENT by , March 11, 2011
checked spark replaced the coil but i think i figured it out it only has a problem when i let my gas get below a quarter of a tank so im thinking that i have a cracked hose in my pump somewhere like a broken straw it will only suck the gas as low as the break goes.......................... thought id update and found out it was the crank sensor ie engine speed running great now