ok so i just got this blazer about 6 days ago i had to tow it behind a friend to my house we droped the gastank and replaced the pump cause the old one was dead i physically cant get the filter off its like locked on there dongt got a clue on how now the pump kicks on and prims but it wont start dont got a clue on wha could be going on pls help is it the injectors or the filter is cloged the line bad anyone got an idea and im onl 16 and i have 54 dollars now spent about 72 to get the 91 up to running conditions all fluids and the feul stuff

 

Are you getting spark?

 

Periods would help.


Truck specifics would help too. YEar, engine, tranny, 2wdr 4x4, etc.


IF I understand your post.
There is a lock ring on top of the fuel pump. Take a hammer and screw driver and turn the lock ring. Remember gas fumes and sparks are not a good combination, use rags to reduce teh chance of a spark. Try some penetrating lube too.

There is a relay that controls the pump. If the pump isn't starting with the turn of the key, the relay may be bad. Should be a couple of relays next to each other, try one of the other ones and see if that fixes the problem.

There is also a oil pressure switch tied into the relay, no oil, and the relay wont let the fuel pump fire.

Did yuo disconnect the battery? Got power? Headlights work?

 

Sorry about the post hijack, but I just noticed something in Hanr3's sig. Are you sure you want me to convince you to do a V-8 Swap? I'll do it ya know. I'll start posting videos and pics and i'll have you swapping by this weekend......lol.

 

Post away.


My '00 has 127,000 miles on her now. I figure I'll be swapping in a new engine in 2 years. I really lke the 4.3L, however I need some serious conviencing to drop in a 5.7L. I know the tranny will handle it. I already rebuilt it.
End hi-jack.