Empty HPOP Res.
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Senior User
Joined: Oct 2007
Posts: 168
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From: Albuquerque, NM
Empty HPOP Res.
So the new motor was running great but the truck has been parked for about a week and now it won't start. It is a complete rebuilt motor with a adrenaline pump. I cranked it and it fired and ran for about a second or two then died. Tried cranking it several times after and no start. I opened up the res and stuck a 6" extension inside and came up dry. The dipstick is showing 1-2 quarts high.
What do I need to do to fix this?
I know there is a anti drain back valve thing because it is a 95 but I told Bob that and am prety sure I got a HPOP for a 95. How do I fix the drain back problem and do I have to pull the motor again?
The 3/8s plug is still tight in the valley behind the HPOP and I remember putting the ball bearing and spring in their did I forget something else. The truck has about 400 miles on the new motor so I am pretty sure the air is all out.
What do I need to do to fix this?
I know there is a anti drain back valve thing because it is a 95 but I told Bob that and am prety sure I got a HPOP for a 95. How do I fix the drain back problem and do I have to pull the motor again?
The 3/8s plug is still tight in the valley behind the HPOP and I remember putting the ball bearing and spring in their did I forget something else. The truck has about 400 miles on the new motor so I am pretty sure the air is all out.
Posting Guru
Joined: Nov 2007
Posts: 2,158
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From: West Texas
I'd verify the right pump too. The anti drainback valve is on 94 and 95 pumps and there is no way for the stock timing cover and reservoir to hold oil without it. Unless you mod it or change it all to 97 parts. Like I'm doing.
Hotshot
Joined: Feb 2009
Posts: 10,408
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From: Plankinton, SD
If that has fallen out it will cause the hpop to drain, it happens more common on the 94/95 models like yours.
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Senior User
Joined: Oct 2007
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From: Albuquerque, NM
Ok would it be easier to pull that 3/8 plug in the valley and stick a magnet down there to see if the ball and spring are in there? Also what holds the ball in place from falling?
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Thread Starter
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Senior User
Joined: Oct 2007
Posts: 168
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From: Albuquerque, NM
Ok so I made some progress I manually filled the res, cranked for 10-15 sec and it fired up then died. Then cranked it for 15-20 seconds and it fired up. Oil presure is good actually a little high. So now what would be your guy's vote?
Junior User
Joined: Jan 2011
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This is to 427 FORDMAN,was looking at your pic's on oil filter check valve and parts.
The spring was the only thing that fell out when my son changed the filter noticed a snap
ring,washer like thing,and silly black thing are these important ?????,thank's
The spring was the only thing that fell out when my son changed the filter noticed a snap
ring,washer like thing,and silly black thing are these important ?????,thank's