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77 chief
02-05-2003, 04:37 PM
im not getting gas. replaced lines, put an inline filter along with the regular filter, new pump. even tried putting the gas line in a gas jug, so how do i check/fix the vacuum without the jeep running? thanks in advance....
timmirvin
02-06-2003, 06:06 AM
Originally posted by 77 chief:
im not getting gas...so how do i check/fix the vacuum without the jeep running?:confused: A little confused here, are we talkin' fuel supply to the engine, or vacuum lines???

Are you getting fuel to your fuel pump from the tank???
oke-ja
02-06-2003, 07:38 AM
confused too...
:confused:
vacuum is a product of a running engine - what is to check when engine is off?

So you put a fuel hose in jug full of gasoline, then connected the other end of hose to the fuel pump inlet - right?
then another hose from the fuel pump outlet to an empty container - right?
Turn over the engine and no fuel is pumped?

Is that correct?
77 chief
02-06-2003, 03:08 PM
sorry for the confusion, ok lets try and clear this up. im not pumping any gas from or to anywhere. bought a new pump and line, put an inline filter in. didn't work? so i thought the tank was clogged or something, disconected made sure line was clear, put in the jug of gas. still no fuel. bought another pump, same prob. have i just bought 2 bad pumps in a row? or is there another prob? me being a newbie, seeing all the talk about the acc. pump. thought i might a a vacuum leak??? my fault there!
timmirvin
02-06-2003, 03:13 PM
I think I need a cup of coffee or something....where did you put the jug of gas...in the tank, or did you put the fuel line in the jug.....
oke-ja
02-07-2003, 12:08 AM
OK... it is a mechanical fuel pump - right?

Simple machine - if it is installed correct (pump needs to be right side up and the pump lever needs to ride on the cam lobe) and if the inlet/outlet lines are conntected correct ...it will pump fluid when the engine is turned over to actuate the pump.

If no fluid is pumped when engine rotates - check all the installation and connection.

If all above are correct and still no fluid... likely the pump is bad. Getting two bad pumps in a row is rare... but it could happen.

IMHO - double check installation and connection. Be sure the intake line is compelte immersed in fluid - then try again.
IIRC... Haynes has decent troubleshooting guide for mech fuel pumps.

[ February 07, 2003, 07:10 AM: Message edited by: oke-ja ]