Consensus on fuel pulsator?
Thread Starter
Melting Slicks
Joined: Nov 2013
Posts: 3,451
Likes: 336
From: Greater Cincinnati Area.
Consensus on fuel pulsator?
I am having sender problems and will have to remove it. I remember from the pump install that there is no pulsator installed.
Should I get one? Is it important?
If I remember right, I think it just had a piece of hose clamped there?
Year is 85 if it matters.
Should I get one? Is it important?
If I remember right, I think it just had a piece of hose clamped there?
Year is 85 if it matters.
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Team Owner
Joined: Aug 2004
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From: Park City Utah
Because the pump is a turbine and provides a very smooth delivery. Additionally, the rubber fuel hose in place of the pulsator has damping characteristics on it's own. What ever criteria GM may have been trying to meet, you won't notice the difference one way or the other.
Team Owner
Joined: Jul 2004
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From: Hartford WI
It is rubber with the metal or plastic parts pushed in. So what do you think can happen when the fit gets loose? I would put in hose that is fuel submersible rated.
Team Owner
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From: Hartford WI
Le Mans Master
Joined: Sep 2013
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From: near the thumb in the mitten
Fuel Pump Pulsator is for noise only. When GM went to the high pressure in-tank fuel pump there was a concern about the noise coming from the back of the cars. The noise was a characteristic of the type of pump used and varied from a slight hum to a loud buzz. GM went thru several different fuel pump and pulsator designs in an effort to reduce the noise and related customer complaints. Most fuel pumps made today don't generate noise like the early pumps so pulsator can be eliminated.
A funny note if you have a 85-87 C4 resto being judged; do you lose points if fuel pump isn't loud enough
A funny note if you have a 85-87 C4 resto being judged; do you lose points if fuel pump isn't loud enough
Team Owner
Joined: Jul 2004
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From: Hartford WI
If the pressure holds with the return line off, I'd suspect leaking injectors or bad FPR
Safety Car
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From: Glenbeulah Wi
Team Owner
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From: Park City Utah
THIS^
.
Last edited by Tom400CFI; Oct 27, 2016 at 06:17 PM.
Team Owner
Joined: Jul 2004
Posts: 28,501
Likes: 3,302
From: Hartford WI
