Walbro 255LPH install... only 10PSI.
Thread Starter
On The Tree
Joined: Jan 2009
Posts: 127
Likes: 0
From: Sebring, FL
Walbro 255LPH install... only 10PSI. My 1994 Firebird Formula needed a fuel pump, so I decided to go with a Walbro to support my LS swap down the road. I got it hooked up and it ran very rich but ran strong and acted completely fine... Then it died. I borrowed a pressure gauge to find it is getting only 10 lbs of pressure.
Has anyone got an idea??? My only current thought is that the pressure line in the tank must have partly come off or cracked. There are no signs of an external leak. All I can say is thank God I cut a hatch!
Has anyone got an idea??? My only current thought is that the pressure line in the tank must have partly come off or cracked. There are no signs of an external leak. All I can say is thank God I cut a hatch!
TECH Fanatic
Joined: Jan 2004
Posts: 1,157
Likes: 1
From: Kingfisher Oklahoma
My 1994 Firebird Formula needed a fuel pump, so I decided to go with a Walbro to support my LS swap down the road. I got it hooked up and it ran very rich but ran strong and acted completely fine... Then it died. I borrowed a pressure gauge to find it is getting only 10 lbs of pressure.
Has anyone got an idea??? My only current thought is that the pressure line in the tank must have partly come off or cracked. There are no signs of an external leak. All I can say is thank God I cut a hatch!
Has anyone got an idea??? My only current thought is that the pressure line in the tank must have partly come off or cracked. There are no signs of an external leak. All I can say is thank God I cut a hatch!
Could also be the regulator.
There are known issues with the black rubber hose many pumps come with too. That hose is actually not rated to be submerged and when it is is splits but usually take longer.
If you buy from Racetronix they supply a new flex hose like the stock one.
If you buy from Racetronix they supply a new flex hose like the stock one.
Thread Starter
On The Tree
Joined: Jan 2009
Posts: 127
Likes: 0
From: Sebring, FL
I got the pump from High Flow Performance... It came with the clear bendy straw style tube like the stocker. I changed the fuel filter at the same time as the pump. I will check the flow pre-filter and see what it does. I guess i can only cross my fingers that the pump is the real deal. It said made in U.S.A. on the actual pump.
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I got the pump from High Flow Performance... It came with the clear bendy straw style tube like the stocker. I changed the fuel filter at the same time as the pump. I will check the flow pre-filter and see what it does. I guess i can only cross my fingers that the pump is the real deal. It said made in U.S.A. on the actual pump.
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On The Tree
Joined: Jan 2009
Posts: 127
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From: Sebring, FL
It also had the same Walbro part # on the case... If it is fake I am going to sell my car and truck for a damn bicycle. I am so sick of buying useless parts. I would rather be skinny and have money anyways.
On The Tree
Joined: Sep 2010
Posts: 121
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From: Tucson, AZ
GOD DAMMIT!!!! I just bought a walbro from them too, didn't resolve ****, but I found out that with the ignition on I'm getting 7.5 volts to the plug that is close to the pump, at the battery I got 12.2 and at the relay I got 11.4, so the harness should be bad, already ordered one should be here tomorrow will let you know if that fixes it
I'm having the same issue with my walbro, bought it from SpeedTweekerz, a sponsor on this site. I was only getting 10-15 psi.. went into the tank and found the pump was spraying gas out of a small hole next to the fuel line on top of the pump. Weird. But they are warrantying it out for me.
Thread Starter
On The Tree
Joined: Jan 2009
Posts: 127
Likes: 0
From: Sebring, FL
They heavily advertise the pump to be a true Walbro. I will get to the bottom of the problem. This pump has only been running for about 10-15 minutes and sounds the same as the first time I turned the key. I should have some sort of update later today.
Thread Starter
On The Tree
Joined: Jan 2009
Posts: 127
Likes: 0
From: Sebring, FL
GOD DAMMIT!!!! I just bought a walbro from them too, didn't resolve ****, but I found out that with the ignition on I'm getting 7.5 volts to the plug that is close to the pump, at the battery I got 12.2 and at the relay I got 11.4, so the harness should be bad, already ordered one should be here tomorrow will let you know if that fixes it
Thread Starter
On The Tree
Joined: Jan 2009
Posts: 127
Likes: 0
From: Sebring, FL
I was lazy today... All I did was yank the connector off the back of the fuel filter and turned the key on to see nothing but a trickle of fuel. I hate my life haha. Whatever is wrong is in the tank.
Thread Starter
On The Tree
Joined: Jan 2009
Posts: 127
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From: Sebring, FL
Well, I have been lazy lately. The car is going to be parked until early next year due to lack of funds and will to work on it. I am considering stripping the car completely down to the body and starting fresh, even though it will take a couple years to get done that way.
