Chevrolet Truck Owners..Answer This Please...?

Question

I have a 1990 Chevrolet Cheyenne 1500. It runs great and starts like a champ but if I punch the gas it just bogs a little bit and doesn't do anything. But if I start out slow and work my way up the throttle its fine. Any ideas on why it bogs/loses power when full throttle is applied at once?

Answer 1

The fuel filter may be plugged. For the 7 or 8 dollars and ten minutes it takes to change it. It is well worth the gamble. The issue is fuel delivery. When you accelerate very rapidly the engine demands alot of fuel fast. When you accelerate slowly then it doesnt demand as much. With what you describe it spells out a definate fuel delivery issue. Start with the fuel filter and a can of fuel syatem cleaner and go from there. Fuel filter is cheap enough and easy enough I do the once a year.

Answer 2

My 1991 Cheyenne 2500 did this too. It did this since it was brand new. I've changed everything out fuel pump, filters, and it still did it, I finally started using a higher octane fuel (premium unleaded) after the 2nd tank it stopped doing it.

I only burn premium unleaded now and the truck runs great, run's better than it ever has. I just recently rebuilt the engine, and i swear it's like a brand new truck. Now i'm actually debating whether to keep it and get rid of my 2000 Silverado 1500.

I think i'm going to dump the 2000 silverado it has 150K miles, but my 91 only has 1500 miles on the engine and drivetrain rebuild.

Answer 3

Fuel Filter. If its is clogged any at all it will bog out. Because it isn't getting the proper fuel.

Answer 4

Ageree with maximum, radiator. you won't be able to "restoration" a corroded/plugged radiator. something corrosive sufficient to actual get rid of scale and deposits from galvanic corrosion (google that, be the only one on your class who is conscious why antifreeze is so mandatory besides freeze protection) ni the radiator, might devour the radiator itself. over the years, without changing coolant mind-blowing, the radiator loses performance simply by restrict from what i discussed. the only thank you to "restoration" them is to rod them, have the middle replaced, or purchase yet another radiator. The aluminum/plastic radiators are airborne dirt and dust low value, purely get yet another one. have confidence us. Why the hell might you tension it speedier while that's overheating? you do not have sufficient education under your belt to make that decision, and right here is the place i'm going that might assist you: If a automobile starts to overheat, close IT OFF! mind-blowing there, mind-blowing then, close it off. the speedier you circulate, the extra durable the engine works, and the extra warmth it develops. The worst element you're able to do is shop utilising, not to point tension speedier. *If* that's low on fluid, the temp gauge might additionally be misguided, as they're made to degree coolant temp, and air is a undesirable conductor...what they practice as temp in air will take a techniques longer to alter than if it have been in coolant. The temp of the coolant on the cylinders is a lot bigger than that's the place the temp gauge measures, so overheating on the gauge is actual a important bigger project on the cylinders/head gasket.

Answer 5

Try a filter canister 481 type first, if not than think about dropping tank for fuel pump replacement.

Answer 6

i would say check the fuel pump too... My 1985 did the same thing till i changed the fuel filter.. but i also put a new 4bl holley on it.. That helped too =)

Answer 7

fuel injected or carb? carb , could be a weak accelerator pump in carb or fuel filter ,same with injection ( fuel filter ),also check timing

Answer 8

It could also be your kickdown, pcm, or a half dozen other things, without proper diagnostics, you can't be 100% positive.

Answer 9

try changing your flue filter.. u will find it under the truck just under the drivers seat