91 syclone not starting up. help

syclone#488

GMC Syclone 36,000 miles
I just bought my syclone with 36000 original miles and it had been in storage. It is my new project. I bought it knowing it doesnt start up the truck wants to start up and cranks over. When i turn the key you hear the fuel pump turn on and when i try to turn it on it sounds like it really wants to turn on . The guy told me the truck has a new battery, injectors, ignition control module, distributor, he says the truck turned on about 2 months ago. My cousing checked the truck a little and said it is not getting spart to te distributor any of you guys ever had this problem or know what it could be . Thanks alot .
 

gkrcr882

SyTyless......for now!
Re: 91 syclone not starting up. help

Do a basic tune up and disregard what the previous owner said, the truth is in front of you. Plugs, wires, cap, rotor and fuel filter. Go from there. While you're at it, replace the decrepit vacuum lines with new ones. Other possibility for no spark is the coil.
 

BoostedSUV

Active member
Re: 91 syclone not starting up. help

Verify the timing is correct (dizzy set on #1 at TDC), verify fuel pressure and that the truck holds fuel pressure after the fuel pump primes
 

syclone#488

GMC Syclone 36,000 miles
Re: 91 syclone not starting up. help

I checked the truck and it is getting fuel. but i removed one on the spark plugs and tried cranking it and it is not getting spark at all. I put a new ignition coil and ignition control module and it still will not start. The only thing i saw that looks weird is a wiring harness connector that connects to the back of the distributor i think its three wires a white orange and i think purple. Well the white wire is cut open and you can see about two inches of bare wire. Any ideas guys.
 
Top