1988 chevy silverado 4x4

[EddieA]

This truck is driving me crazy! It is flooding to death, I have replaced evry sensor on this truck and still no luck. When I start it, it will fire right up but, if I get in the throttle it will load up. Now, I can unplug the heat sensor and it will run top notch but, when it cools off, it will not start back until I plug it back up, then more flooding until it reaches operating temperature then unplug it and go. I have also tried a new computer with no luck! Can anyone help me, please?????????????????????

[prong2002]

Eddie:
Do you have spark? Also, is it in time. Have you changed the timing chain lately? Spark tester is probably good to get about right now. Also, you may want to run a fuel pressure test to make sure the pressure regulator is not allowing too much gas through.
I have a 1988 silverado 4x4 myself. I'm tweaking mine a little myself. The time is actually off by 180 degrees because I forgot to line up the distributor when I was checking the timing chain (I mean replacing it). Be careful if you check the timing chain. I accidentally tore the oil pan gasket and ended up tearing apart the entire axle to change the gasket.

[EddieA]

It is in time but, I have not changed the timing chain. I will take your advice and check the fuel pressure even though I don't understand how it could be that, when it runs good after you unplug the tempersture sensor. I'll let you know how that turns out. Thanks for your help.

[prong2002]

Eddie:
I would start by swapping out that coolant temperature sensor. I just swapped mine out for $8. I bought a replacement sensor at autozone. If the car computer thinks that it is really cold (-70 degrees fahrenheit) it will pump too much gas in there.