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Living in RV heaven. You think cars are bad!
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Discussion Starter #1
I know this is a real guessing game but take a swing. Seems like fuel pumps always fail when the tank is 3/4 or more full, making it even tougher for a DIY'er to replace. I would like to replace the one in the 2002 we recently bought while the tank is nearly empty and I'm pondering on when to do it. I have no idea if it's ever been replaced before so we'll assume it's OEM.

It's 11 years old of course, and has about 101k miles on it. When would you replace it?
 

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It really is impossible to say. The two failures I've had, one was at 210K miles and 11 years, the other was at 125K miles and 27 years. A lot depends on how often and for how long the pump was run with the tank below about 1/4 full, and whether it was lots of short trips or long trips; and the individual quality of that pump.

To replace one yourself with a quality brand would be about $250 in parts, and I find it better to do proactive replacement in warm weather at my convenience at home (I have no garage).

I would not worry about the tank being full. Most pumps or sending units have a siphon port that is capped off with a rubber cap and hose clamp. You can buy a hand siphon pump for gasoline at most parts stores for less than $20. Takes a couple hours, but you can pump into a gas can and use it in another vehicle or a lawnmower.
 

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Living in RV heaven. You think cars are bad!
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1,580 Posts
Discussion Starter #3
Bob, I don't want to buy a pump nor containers to hold gas. That's what I'm trying to prevent by doing some advance maintenance. On my '90 2.5 Turbo, the pump went out in '99 but I can't recall the mileage. The pump on our '96 3.0L went out in '07 at about 150k. I may just change it since it's already 11 years old (if OEM) and that's far past both of my most recent 2 vans.
 
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