Replaced Fuel Pump
05-23-2002, 08:12 PM
#16
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No I didn't. I filled it up with premium. The fuel is pretty clean too because I dumped half a gallon on my grage floor when I replaced my fuel pump. I thought that I had the line clamped off but I didn't have it tigh enough. I am at a complete loss as to what the problem could be.
05-24-2002, 09:54 AM
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I had the exact same problem. Went thru 2 fuel pumps. Actually, when the end blew out of the second one, I started to look for other culprits.
The answer and fix was easy. It was a combination of replacing vacuum lines that were leaking and the Fuel Pressure Valve (?) that sits atop the engine and returns unused fuel/pressure back to the tank. My unit was stuck and not releasing the pressure.
When replaced the white smoke, noisy pump, and stalling all went away. Cost = $50.
The answer and fix was easy. It was a combination of replacing vacuum lines that were leaking and the Fuel Pressure Valve (?) that sits atop the engine and returns unused fuel/pressure back to the tank. My unit was stuck and not releasing the pressure.
When replaced the white smoke, noisy pump, and stalling all went away. Cost = $50.
05-24-2002, 10:01 AM
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find someone with a 944 and switch dme relays, its a 993 part number, so options are available, wouldn't hurt to have an extra on hand anyway.
Jason
Jason
05-24-2002, 12:03 PM
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I will call you Don.
[quote]
The answer and fix was easy. It was a combination of replacing vacuum lines that were leaking and the Fuel Pressure Valve (?) that sits atop the engine and returns unused fuel/pressure back to the tank. My unit was stuck and not releasing the pressure.
<hr></blockquote>
I was thinking that it was fuel delivery as well. I will look into it thanks for the advice.
[quote]
The answer and fix was easy. It was a combination of replacing vacuum lines that were leaking and the Fuel Pressure Valve (?) that sits atop the engine and returns unused fuel/pressure back to the tank. My unit was stuck and not releasing the pressure.
<hr></blockquote>
I was thinking that it was fuel delivery as well. I will look into it thanks for the advice.
05-24-2002, 04:18 PM
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Kool,
The correct terminology for my fix was....replacing the Fuel Actuator. Got new one from Vertex.
I cant' explain the smoke, but I had the same thing...also many of the thin nylon vacuum lines running around the manifold were brittle/melted. Replaced with silicone hose.
Purrs like a kitten...
The correct terminology for my fix was....replacing the Fuel Actuator. Got new one from Vertex.
I cant' explain the smoke, but I had the same thing...also many of the thin nylon vacuum lines running around the manifold were brittle/melted. Replaced with silicone hose.
Purrs like a kitten...
05-28-2002, 04:07 PM
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Hey Everybody
Just got off of the phone with my wrench. And Mark was right the FPR was shot. My Wrench said that the car was running 8 bar or pressure at the rail. He said normal is 2. I would venture to say that it was running a little rich. I will get it back tomorrow and put my APE stage II's in.
I am still leary of the white smoke so I had him go ahead and do a Compression check just so I could sleep at night.
Thanks for all of the advice you guys were a great help.
Just got off of the phone with my wrench. And Mark was right the FPR was shot. My Wrench said that the car was running 8 bar or pressure at the rail. He said normal is 2. I would venture to say that it was running a little rich. I will get it back tomorrow and put my APE stage II's in.
I am still leary of the white smoke so I had him go ahead and do a Compression check just so I could sleep at night.
Thanks for all of the advice you guys were a great help.
