Few Problems

First Problem
Trucks been loff the road for awhile and when i put battery in to start it the truck wouldnt start, 2 grounds off from fixing cab mounts, so fixed them grounds and then tried again, truck rolled over very slow, started but rolled over slow, when i shut it off and tried again it rolled over even slower so i holded the key on and the ground wire comming from the battery going to the rad support, a small ground wire not the big heavy one started to smoke and got really hot, why would this be and could it be causing the problem of winding over slow?

Second Problem
When i got the truck started, it didnt want to idle, would die out everytime i pressed the gas , press the gas couple more times and it would finally rev up, but still it wouldnt run right, like it had no power. Any ideas? The plugs are new, wires new, cap new, could it be fuel pump or fuel filter, it seems like the truck aint getting enough gas.

Its a 87 S10 4x4 with 2.8L

When you said the truck had been off the road for awhile, did you mean it had not been started for awhile. How long? Has the engine been turned over anytime during the idel period? The burned ground wire sounds like it was an undersized wire.

Wires will smoke if the contact is bad too, I think that you might still have 1 or more bad grounds.

I would recomend that you take them all off and clean them with emery cloth or sand paper

You might have some rust and other comtaminants in the cylinders, making it a very low compression motor. If this happens it won't run right.

I would pull all the plugs, adn poup in a little ATF fluid in each cylinder.
Put the plugs back, rotate the motor a couple of rotations. By hand if possible. Don't start it.
Then let it sit overnight.

Then it might run right.

I recomend that you do a full tune up quickly, and replace the fuel filter right away

the truck has been not driven in 2 years, but been started every now and again. i forgot to mention that this problem with the truck running started to happen while i was driving it so i took it off the road because well it was summer so i drove my car instead and never put it back on the road or tired to fix it. I'm tring to get it running right now so i can use it for plowing snow. Also the grounds in question were cleaned with sand paper and where they attached to the body was cleaned up too.

2 grounds were broken that i found, one running from the rad support down to the chassie and the other one came from the back of the motor to the firewall, both of them were gone. The wire thats smoking comes from the negative terminal on the battery to the rad support and connected above the right headlight. The 2 grounds i put on seems to be working good, neither heating up or smoking.

would anyone know how many and locations of grounds on a 2.8L? or where i could find a wiring diagram online

I wouldn't know.

I'm suddenly thinking that you should take the coil and bracket off the block, and clean everywhere it touches metal. Without a good ground the coil won't work properly. I know from first hand experience with my own blazer.

I really hope that this will cure all your problems

Come to think of it overboard the screws may be out of the coil, i dunno how they got out but come to think of it now i'm pretty sure they are out and the coil is just hanging there resting aganist the bracket, but when i get home next week i'll be sure to clean it up and reattach it and give it a try, should it run without that grounded? if not its probably something else just hanging there, its either that or something with vaccume lines going into it, i cant remember exactly.

thanks for the input

That's your problem then.

I had the same one, so I found out that the coil does have to be bolted to a good ground.

You can bolt it anywhere on the body, frame or motor, as long as the ground is good.

It took me 2 days t find it on my rig :rolleyes: