The truck seems to run well when accelerating but when i start it it will run for a few seconds and "pucker out"and this ususally repeats 4-6 times .. once started and traveling at a constant speed usually 55 or so it has a hiccup,, it is random and not predictable .. i have been through every possibility i can think of at the moment,,, suggestions???
it feels like a miss fire.. but thats not the issue.. but it feels the same. just a quick as if somebody were to unplug and replug in the coil wireit feels like a miss fire.. but thats not the issue.. but it feels the same. just a quick as if somebody were to unplug and replug in the coil wire
had a cam shaft pos.. code.. replaced it.. and o2 codes.. 1 o2 is bad.. but it was bad far before this issue startedhad a cam shaft pos.. code.. replaced it.. and o2 codes.. 1 o2 is bad.. but it was bad far before this issue started
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first you have to do tune up. fuel filter,spark plugs,air filter,clean trottle body ,trottle plate, it's hard to say like that but it seems fuel pump relay or fuel pump have pressure test check.catalytic converter to.
i have a 90 chevy 2500 2wd 350ci.when i go to start my truck the key turns hard in the ignition,the check engine light and brake light come on the heater dont work,and the transmission will shift from 1-2 at real high rpm and shift hard,no 3-od.this comes and goes,but all happens at the same time.some times it last for 10 min,sometimes its days.what is going on?
Lets go back to the fuel pump. I am working on one now that has the same symptoms.It turns out it is the fuel pump. Still pumping fuel, just not enough pressure. Hard start, idles fine give it some fuel and dies. One other thing that I can think of that will do this is clogged catalytic converters.
Have you replaced your fuel filter lately? If not try it. My friends Chevy will do that same thing and then we change the fuel filter and it's good to go. Also try turning you key on for a few seconds before trying to start it and see if you can hear the fuel pump running. You should hear it run for a few seconds and if not you may have a fuel pump relay or pump acting up. You could also do a fuel pressure test with a pressure gauge when it is cold also.
No, the fuel regulator from a 96 will not fit a 98. The 98 is a vortec and i believe the 96 is TBI. You are on the right track though, but the fuel regulator is attached to the fuel injector spider and is one unit inside the upper intake. It is relative easy to replace just takes some time.
i would suggest replacing the catalytic converter. it might be plugged up and that could solve both your problems. if it demonstrates more going up hill the fuel pump might be going out
you need to replace the coolant temperature sensor. It tells the computer that your car needs a high idle. As far as your running, you got some water displaced in your system. Change out the fuel filter, and pour a can of "Seafoam" in the tank. It will take a few miles, but that should fix your problem.
What does "hiccup" mean in terms of engine driveability problems??
it feels like a miss fire.. but thats not the issue.. but it feels the same. just a quick as if somebody were to unplug and replug in the coil wire
Do you have any engine fault codes showing up on scan of the electronics?
had a cam shaft pos.. code.. replaced it.. and o2 codes.. 1 o2 is bad.. but it was bad far before this issue started
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