Help!! fuel pump dies w/hot
Thread Starter
Teching In
Joined: Feb 2006
Posts: 39
Likes: 1
From: cincinnati
Help!! fuel pump dies w/hot Hi all you fuel experts , my walbro pump dies when ever the temp outside is above 75 and I drive for more than 45 minutes. After the car cools off overnight it works fine. This is the second walbro pump that has done this after only 1500 miles. My car is a 98 WS6, I have a hot wire kit and even a voltage booster. This is all too frustrating please help any sugestions would be greatly appreciated
Ive had bad luck with Walbro pumps as well. I had the same problem with one shortly before it died. Ive heard a few others complain of the same problem. I know there are plenty of good ones out there. I think the pumps w/ part number ending in "169" are not so good.
TECH Enthusiast
Joined: Aug 2006
Posts: 542
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From: Memphis, TN
the 98's dont have a bucket do they? Sometimes fuel pumps will do that when they are starting to go out, they get hot when there isnt enough fuel covering them to keep them cool. People who mod the bucket and cause it not to hold onto fuel properly see this problem some when juicing the hell out of the pump. I'd say try and run it without the BAP on it and see what happens, that is unless your setup requires the BAP.
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Verdad Gallardo Thread Starter
Teching In
Joined: Feb 2006
Posts: 39
Likes: 1
From: cincinnati
the 98's dont have a bucket do they? Sometimes fuel pumps will do that when they are starting to go out, they get hot when there isnt enough fuel covering them to keep them cool. People who mod the bucket and cause it not to hold onto fuel properly see this problem some when juicing the hell out of the pump. I'd say try and run it without the BAP on it and see what happens, that is unless your setup requires the BAP.
Thread Starter
Teching In
Joined: Feb 2006
Posts: 39
Likes: 1
From: cincinnati
the thing is this is the second pump in about 1500-2000 miles the second pump worked even in 98* temp for a little while . if that is all the longevity I can expect what other pump is available ? every pump I see either is a plain walbro or is a walbro with fancy dressing
Thread Starter
Teching In
Joined: Feb 2006
Posts: 39
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From: cincinnati
I have been told that a stock pump won't feed my motor but I'm considering giving it a try my motor is a 442 ci 635 hp 615 torque
Thread Starter
Teching In
Joined: Feb 2006
Posts: 39
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From: cincinnati
I'll check their web site, I really want an easy,but permanent fix. the walbro feeds it well enough when it's working, but the swaping fuel pumps job has become really old
Did you cut the access panel in your trunk area so you can pull the fuel pump assembly straight up and out of the car without dropping the tank? that's what i've done and it takes 5 minutes to pull the assembly up and out.
Thread Starter
Teching In
Joined: Feb 2006
Posts: 39
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From: cincinnati
no I havent cut in the access panel so its a 4 hour job but I really want to know why this is happening,,, I think I'll run a return line from the front of the car and see if that helps. I cant believe that I'm the only one that has run across this problem. seems like everyone uses walbro...without this problem
Teching In
Joined: Feb 2007
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If your pump fits inside a bucket, you really should mod the bucket with holes so that the fuel can keep your pump from running dry and overheating. Once you do this mod it should stay cool. You can't run your car bellow 1/4 of a tank after this mod or your pump willrun dry.
On The Tree
Joined: Dec 2007
Posts: 122
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From: Rosenberg,TX
Walbro makes most of the stock pumps for the OEMs. You have to make sure you are getting a real Walbro, because there are a lot of fakes out there. I get mine from www.fuel-pumps.net
TECH Enthusiast
Joined: Aug 2006
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From: Memphis, TN
If your pump fits inside a bucket, you really should mod the bucket with holes so that the fuel can keep your pump from running dry and overheating. Once you do this mod it should stay cool. You can't run your car bellow 1/4 of a tank after this mod or your pump willrun dry.
thats the point of the bucket, it is there to keep the pump submerged even below 1/4 tank because of the siphon setup it has. I would not mod the bucket at all, or you will cause the pump to run unsubmerged because the siphon will not work with holes in the bucket. This will cause all of the fuel to run out of the bucket.
Are you running a dedicated hot wire kit for the pump, or just running it off stock wiring and added a boost-a-pump?
Thread Starter
Teching In
Joined: Feb 2006
Posts: 39
Likes: 1
From: cincinnati
thats the point of the bucket, it is there to keep the pump submerged even below 1/4 tank because of the siphon setup it has. I would not mod the bucket at all, or you will cause the pump to run unsubmerged because the siphon will not work with holes in the bucket. This will cause all of the fuel to run out of the bucket.
Are you running a dedicated hot wire kit for the pump, or just running it off stock wiring and added a boost-a-pump?
Are you running a dedicated hot wire kit for the pump, or just running it off stock wiring and added a boost-a-pump?