Hi, Can some one tell me what the fuel pressure should be on my 1995 Blazer
4.3L CPI vin code WThanks Larry
Hi, Can some one tell me what the fuel pressure should be on my 1995 Blazer
4.3L CPI vin code WThanks Larry
It's 60-66psi isn't it?
Doc
Hayne's for my 94 with the same motor says 54-62 PSI.
Well I checked the pressure tonight , When i turn the key on I get 60 psi. As soon as the pump shuts off it drops to zero within about 10 seconds. With the engine running i get 53 psi at idle. Is it supposed to drop off or should it hold pressure ?
TIA Larry
You have a problem with the CPI unit or the nut kit. It's not a terribly difficult job for a DIY person. I had NO mechanical experience except for changing tires and brakes before I replaced the one in my 94. Took me the better part of a day, but I had some trouble and had to go on a tool run in another vehicle.
Go to
If you want me to list the tools I needed and do a quick write-up of the procedure, I'll go check my tool bag to see what I had to buy. I know I needed a 10 mm box-end wrench, one stud was too long for ANY deep-well socket I had available. Maybe a 10 mm crow's foot for a ratchet would have been a better choice. The Hayne's manual also does a decent job of explaining it, but it's fairly straightforward, you need to get the upper plenum off and the injector is right there in the middle.
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