My 1998 Chevy Blazer won't start will turn over but won't start

bad body ground at tank connection, also check gauge fuse

try use this tool check your car.

fuel pumps can be nasty things but befor i payed out the cash for a new one i would check my ground wire on top of the gastank if its loose it can sputter, fail to work all together, had a chevy blazer that did that it would start when i banged on it cause it made the ground connect then after a lil bit it would stop, keep in mind this is real rare but happens with gm products check the crank shaft possition sensor as if it goes bad the fuel pump wont pump fuel the computer doesnt know to turn it on, those will come and go as well has a very simular appearance to a bad fuel pump, this sensor is located behind the pully on the front of the engine its the one at the bottom in center sadly got to remove that to get to it but shouldnt be to hard

Try giving it a shot of starting fluid. You don't say if it's actually firing. If it tries or runs for a few seconds off of the starting fluid then try changing the fuel pump relay. It's inside of the glove box on the left hand side behind the little door. If that doesn't work it's most likely the fuel pump.

Whenever I had this problem, it was always cured with a new set of GOOD spark plug wires. Not generic set off the parts store shelf. Get some moisture removal spray and put it on both ends, the coil and the plug, before putting the wires on. Do one wire at a time so you do not get them mixed up. I do not think you have a distributor or a cap. If you do replace it also as it is over 20 years old.

Have you ever put in the gasoline tank any injector cleaner yet because the cleaner will unclog the injectors so full amounts of gasoline can get into the piston chambers the right amounts so try putting injector cleaner into your gas tank. When you put this into the gas tank to remember that it takes time for the cleaner to get to the injectors so you might have to keep trying to start the vehicle many times for the cleaner to unclog the injectors. This will not hurt your vehicle at all so go try this.

Before spending several hundres on a fuel pump, I recommend doing a fuel pressure test. You can get a test gauge pretty cheap at a parts store. If the pump is junk, you raise the truck, lower the fuel tank, unplug the electronics from the pump at the top of the tank, then with a hammer and flat head scrwedrive, gently tap the lock ring in a counter clockwise direction until it pops off. Pull the pump assembly out and install the new one. Reverse directions to install.

try buying some starter fuild. if that dont work try checking the gas filters. if thats not it your erg value may have a carbin build up. that will need to be clean out. but most of all make sure you have spark

I used the cover off another Blazer like mine. Thanks. AJTaylor

if it turns over there are a cocuple of things to check. crankshaft sensor and the coil pack maybe the computer.id start with the crankshaft sensor