I know that the 89' S-15 Jimmy 4x4 With the 4.3 is a Blazer in diguise hence why I am postin in this forum....

I have a small problem....

Oil pressure gauge is bouncing and keeping the chech gauge light on the truck is running fine from the look sounds and feel, anyone have problems with sender or dash cluster????[:-]

And anyone know any good site for body parts????

 

Look for a loose ground...stand on your head,so to speak,and look upwards ...over by the parking brake...a 10mm bolt with 1 single wire...it gets loose and wreaks havoc

 

would that just affect the oil pressure gauge cause usually with a bad ground everything in sequence goes right?

 

who knows...but that ground does affect the cluster

 

no good tightened all... where is the oil pressure senor?

 

Not real sure on an 89..but should be at the back of the intake...near the distributor