95 chevy 1500 4WD running issues when out side temp is over 50 degrees

Asked by Feb 04, 2018 at 04:49 PM about the 1995 Chevrolet C/K 1500

Question type: Maintenance & Repair

Under 50 truck runs fine but over 50 and hwy speeds and accl. it coughs and
spits back through TB and dies. Restarts and idles fine hit the gas and I get a
cough and die. truck runs fine under 50 degrees. I replaced the fuel
pump,pump relay and both filters inline and the sock in the tank. The outside
temp has me scratching my head. Need a little help thank you.

3 Answers


Flat cam?

Truck runs to good, as long as it's cold outside you would never know there was a problem. I can drive all day. Can a cam lobe be affected by the weather? I'm trying not to just through parts at it.


No,but it can cause popping back thru intake if it's bent or not seating properly and that screws up more then the one cylinder from getting fuel

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