What would cause my truck to stall out at 75mph and above?


Asked by Sep 15, 2016 at 06:40 PM about the 1993 Chevrolet C/K 1500 Silverado Standard Cab SB 4WD

Question type: Maintenance & Repair

I have a 93 Silverado K1500 5.7l Z71. When I drive down the expressway if I drive 75mph or above the truck stalls out for a second like I hit a governor or fuel cut off, and then will catch itself and keep doing it. If I drive at say 73mph it will not do it. When it does stall out I can flutter the gas pedal and nothing happens. I have recently done quite a bit of maintenance on the truck. I replaced the fuel pump, fuel sending unit, fuel filter, plugs, wires, cap, rotor, MAP sensor, TPS sensor, coolant temp senor, injectors, fuel pressure regulator alternator, and throttle body gasket. All were changed before this problem started and after a couple of weeks of driving the problem started and that's when I changed the TPS. Any ideas of what I can look at next. I believe right now I need a new EGR valve and u joints, but I don't see either of these being my problem now.

1 Answer


Problem was EGR valve if anyone was wondering.

Your Answer

Add photo

Related Questions

Search Chevrolet C/K 1500 Questions

Chevrolet C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,570
#2 John Saffrahn
John Saffrahn
Reputation 2,260
#3 Rowefast
Reputation 1,190
View All

Related Models For Sale

Used GMC Sierra 1500"
1,054 Great Deals out of 56,406 listings starting at $2,400
Used Ford F-150"
3,237 Great Deals out of 216,704 listings starting at $1,000
Used Chevrolet C/K 2500"
285 listings starting at $1,995
Used Dodge Ram 1500"
536 Great Deals out of 13,918 listings starting at $1,595
Used Chevrolet S-10"
9 Great Deals out of 1,813 listings starting at $1,749
Used Chevrolet C/K 3500"
311 listings starting at $5,600
Used Chevrolet Camaro"
839 Great Deals out of 39,080 listings starting at $2,650