Another problem just reared it's ugly head on my son's newly purchased '92 XJ 4.0 Auto.
He drove it ~ 2 miles up to the grocery store and it ran fine. Then got in and started up just fine and as soon as he tried to drive it it stalled/died. Fired up and idles ok but if you get it gas it wants to die.
So a couple hrs later I take him back up to look it over. Put my fuel pressure gauge on the schrader valve to see ~ 32 psi at key on and ~ 32 psi steady at idle and revving the motor. It will drive, but sputters a bit unless you give it a lot of gas and it wants to die. I was thinking it could be the pressure regulator, fuel pump going out, or a clogged fuel filter (none of which we've had a chance to chance yet since purchase)
My understanding is there should be 49 psi +/- a couple pounds. Is this true for the 92 4.0 HO? If so, what could cause the low pressure and what would you check?
Any suggestions are appreciated.
He drove it ~ 2 miles up to the grocery store and it ran fine. Then got in and started up just fine and as soon as he tried to drive it it stalled/died. Fired up and idles ok but if you get it gas it wants to die.
So a couple hrs later I take him back up to look it over. Put my fuel pressure gauge on the schrader valve to see ~ 32 psi at key on and ~ 32 psi steady at idle and revving the motor. It will drive, but sputters a bit unless you give it a lot of gas and it wants to die. I was thinking it could be the pressure regulator, fuel pump going out, or a clogged fuel filter (none of which we've had a chance to chance yet since purchase)
My understanding is there should be 49 psi +/- a couple pounds. Is this true for the 92 4.0 HO? If so, what could cause the low pressure and what would you check?
Any suggestions are appreciated.