12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

Lift pumps have a check valve?

Thread Tools
 
Search this Thread
 
Old Mar 4, 2011 | 12:29 AM
  #1  
gozapper's Avatar
Thread Starter
Registered User
 
Joined: Feb 2006
Posts: 189
Likes: 2
Lift pumps have a check valve?

Do the lift pumps have a check valve so that the fuel dosen't drain back?

Should there always be some pressure showing when we shut down?

Thanks,,
Tom
Reply
Old Mar 4, 2011 | 10:35 AM
  #2  
infidel's Avatar
Registered User
 
Joined: Dec 2003
Posts: 14,672
Likes: 9
From: Montana
There are three check valves in the pump but they don't prevent the pressure from dropping when the engine is off.
Normal for the pressure to drop to zero in about ten seconds.

Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DIESELDENT
Performance and Accessories 2nd gen only
7
Oct 17, 2007 09:21 PM
JSPulliam21
12 Valve Engine and Drivetrain
3
Mar 7, 2007 10:49 AM
Ilikebikes
1st Gen. Ram - All Topics
10
Dec 11, 2006 10:13 PM
Intercooler
24 Valve Engine and Drivetrain
6
Jun 4, 2005 07:48 PM
Duelin
24 Valve Engine and Drivetrain
46
Mar 12, 2003 08:56 PM




All times are GMT -5. The time now is 05:40 PM.