03 Navigator slow start
Thread Starter
|
Laughing Gas
Joined: Apr 2007
Posts: 1,238
Likes: 2
From: North Port, Florida
03 Navigator slow start
. My wifes nav is starting to crank a little longer before starting so I have done some searching and found a thread from 08 having the same problem and someone suggested a leaky check valve in the fuel pump but there was never anything else said. So does this sound right? Is a check valve serviceable or feasible or is a new pump the easiest way to go? Or is it something else entirely? I think she had over 180k on it the last time I looked.
thanks for any help.
thanks for any help.
Fleet Owner
Joined: Apr 2008
Posts: 24,318
Likes: 5,128
From: 0,0,1
You can usually verify that the check valve is the problem by cycling the key on and off several times, slow not fast though. Turn the key on for 5 seconds then off for 5 seconds. Do this 3 times then try starting it. If it fires right up it's the check valve, if it doesn't it's probably old and worn spark plugs.
Thread Starter
|
Laughing Gas
Joined: Apr 2007
Posts: 1,238
Likes: 2
From: North Port, Florida
You can usually verify that the check valve is the problem by cycling the key on and off several times, slow not fast though. Turn the key on for 5 seconds then off for 5 seconds. Do this 3 times then try starting it. If it fires right up it's the check valve, if it doesn't it's probably old and worn spark plugs.
thanks again.
Thread Starter
|
Laughing Gas
Joined: Apr 2007
Posts: 1,238
Likes: 2
From: North Port, Florida
Alright I have some time again and was thinking of replacing the pump. Is it best to just change the whole fuel pump assembly or just the pump? big price difference but want to do it right the first time.
Thread Starter
|
Laughing Gas
Joined: Apr 2007
Posts: 1,238
Likes: 2
From: North Port, Florida
alright update I finally took the time to switch out the fuel pump assembly on the wifes nav. Seems like it is starting right up now but a overnight set will tell us everything i think. Hopefully that will do it. Next oil filter adapter seal I think is leaking not sure how bad of a job that will be.
the tank would not have been to bad if the damn hose clamps would have been turned where you could get to em but that is normal. Will follow up later after I find out if that took care of the long crank slow start.
the tank would not have been to bad if the damn hose clamps would have been turned where you could get to em but that is normal. Will follow up later after I find out if that took care of the long crank slow start.
Thread
Thread Starter
Forum
Replies
Last Post
kalpesh
1997 - 2006 Expedition & Navigator
3
Dec 7, 2011 09:16 PM
sumbeach
1987 - 1996 F150 & Larger F-Series Trucks
6
Apr 17, 2006 07:07 AM
