Took some time reading to hear something like this to make my not want to change anything. I've had two 03 and never had a frps blow?:rockon:
Frps
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Took some time reading to hear something like this to make my not want to change anything. I've had two 03 and never had a frps blow?:rockon:
Since then, I've blown another one, and again at the track racing it. This time was with the nitrous spraying. And this time it was sucking fuel through the vacuum line. It completely flooded the motor. I had to cap the vacuum line, unplug the FRPS, and pull the fuel pump fuse to get the car to refire and run (this took about 1/2 hour).
FRPS FTL.
What is involved with retrofitting a return style fuel system? After reading this entire thread, I'm afraid to start modding my car because of this problem! Seems like the return style is a way more bullet-proof setup, as you never hear about this stuff happening with the older 5.0's even with massive mods. Will the computer keep displaying an error code, once the new system is in if it doesn't "see" the sensor there?
Brian
Brian
You turn it all off in the tune. It's roughly a $1,500 job to go returnless (give or take $500 depending on options).
03cobramanIII
Banned
do i need this disc? with my mods below? stock pumps, just a bap and 60s.KB FRPS damper ($5) + 5 minutes labor = problem solved [QED]
Seriously, there is no reason to ever blow a $50-60 sensor again!
Here's my before & after...
I'd say yes.
03cobramanIII
Banned
anyone else . i heard i need it , i heard i dont need it . i dunno?
Just blew mine for the first time last night at 27k miles. Called up the local dealer, gave me a price of $650! WTF! Anyway, I don't see how the diaphram would help, since the pressure in a closed fluid system is equally dispersed against the container enclosing it. The pressure that the diaphram sees would still be the same, since P=F/A.....the force of the fuel is the same, and the area of the diaphram is the same, therefore the pressure would be the same. Maybe I'm missing something. Just my .02. But where can I get an affordable replacement!
They clearly looked up the wrong part. The fuel pump assembly itself is around $650, that's probably what they found.
The part number is 3R3Z-9F972-AA, and it retails for $76.45. You can get it cheaper from various places.
The action that blows them is fuel pressure spike. The idea behind the "disc" is to dampen that initial spike, and save the sensor. The diaphram in the sensor is actually a small gel reservoir of silicone, which doesn't take much to ruin.
The part number is 3R3Z-9F972-AA, and it retails for $76.45. You can get it cheaper from various places.
The action that blows them is fuel pressure spike. The idea behind the "disc" is to dampen that initial spike, and save the sensor. The diaphram in the sensor is actually a small gel reservoir of silicone, which doesn't take much to ruin.
yep, called with the part number, $93.65. Where are these various places?
There is a dude on here who sells Ford parts for 10% over cost, plus shipping. I'll find him.
I think this is the guy:
1993SVTCobra
1993SVTCobra
Call Steve at Tousley Ford. Great prices and service.
Will someone take a micrometer to these things so I can have one made?
here was what mine did when killed the sensor!! sounds bad ass but its not!!
http://www.youtube.com/watch?v=Tep8v36dq44
http://www.youtube.com/watch?v=Tep8v36dq44
another video, first with disonnected , then i connect it.. started the car and then pulled it. http://www.youtube.com/watch?v=B8K3VDdhQbM
then the end result was this... http://www.youtube.com/watch?v=amvJOiqTMJc of course.. granny shifting with no pprv delete and on slicks with almost no traction.. ...and yes i was setting up camp at the tree and was caught sleepin
Hey guys,
I'm a Cobra noob here, but I can tell you a little about the disc. I am a Journeyman Instrument Technician, among other things. All over the world, in refineries, chemical plants, paper mills and anywhere else that gauges are used, you will find some that have "snubbers" installed. What's a snubber? It's basically a small disc with a very small hole drilled in it, just like what's being kicked around here.
If you don't install the snubbers on some applications that are prone to having pressure spikes, you find the pointer needle of the gauge will be bent from slamming into the stop at the end of it's travel. These snubbers are tried and true.
Do they slow down the response time? Yes. But the difference is so small that you won't be able to measure it. If you had molasses in your fuel rail, it might be slowed down enough to notice, but gasoline- you'll never know.
I'm a Cobra noob here, but I can tell you a little about the disc. I am a Journeyman Instrument Technician, among other things. All over the world, in refineries, chemical plants, paper mills and anywhere else that gauges are used, you will find some that have "snubbers" installed. What's a snubber? It's basically a small disc with a very small hole drilled in it, just like what's being kicked around here.
If you don't install the snubbers on some applications that are prone to having pressure spikes, you find the pointer needle of the gauge will be bent from slamming into the stop at the end of it's travel. These snubbers are tried and true.
Do they slow down the response time? Yes. But the difference is so small that you won't be able to measure it. If you had molasses in your fuel rail, it might be slowed down enough to notice, but gasoline- you'll never know.
unplug the sensor connector
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