1994 Chevy 4x4 1500 5.7

Asked by GuruYB9ZK Mar 04, 2018 at 09:04 PM about the 1994 Chevrolet C/K 1500 Silverado Extended Cab 4WD

Question type: Maintenance & Repair

If I start my truck in the morning it fires
right up and drives fine till it warms up then
is shutters and bogs out but doesn’t die
but if I’m going slow like turning in to
somewhere it might die spark plugs and
wires have been replaced her replaced
exhaust has no leaks and no cats not sure
on vacuumed leaks but from what I
checked there isn’t any leaks and it only
has 137474 miles I’m stumped

2 Answers
40

Mantis60 answered 6 years ago

It just started doing this or after you worked on it?. If you worked on it go to the last thing you did. It sounds like a unplugged manifold vacuum port. Check vacuum hoses all around working from the engine out. Things to check. Stuck open EGR valve. Try to move the diaphragm with a screwdriver.. PCV valve hose. Hoses to air cleaner. The power brake booster valve. The piece of plastic connected to the hose that plugs into the booster. If it has OEM fuel sysyem it could be running in cold loop. The computer version of a choke. Check fuel pressure. If you've removed cats and by mistake O2 sensors on exh manifold you need to provide way more detail to your question.

Mark helpful

GuruYB9ZK answered 6 years ago

Before I worked on it I’ve been trying to solve it and my phone auto corrected on me I have replaced the egr and I have check all the hoses and there’s no leaks the air breather hose is good and clean and air filter you can see light through it and it has no cats and it has a brand new o2 sensor The check engine light is on I forgot to say that originally

Mark helpful

Your Answer:

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