i tested my fuel pressure and it is good but it loses pressure after sitting a period of time resulting in a long turn over to start it. it sounds like a fuel pressure valve in the fuel pump. you all know that is a pain to replace! was thinking that i could put a inline pressure valve under the hood, in the fuel line instead of replacing the fuel pump one, i found a valve and it looks easy to do, will this work!?!?!?!?

------------------

Welcome to the site, Did you people of Rapid City have a sell out crowd for Sturgis?

Concerning your fuel pressure problem, what you are experiencing is normal, pressure will fall after some time.

However, at the ign position, just before cranking, you should here the fuel pump running, for a short time, 20 secs maybe, this is for the purpose of priming the injectors.

There is also a set of contacts on the oil pressure sending unit for the fuel pump to work, you have 20 lbs. oil pressure, you have fuel pump.

I believe there is also a way to cheat the system and supply power to the fuel pump through the ALDL connector under the dash. Get a Haynes manual to find out which pins, it eludes me at the moment. Or go to the library and look up in the reference books.

It may also be the engine is not being fueled enough during cold start due to summer time temperature being too high. Does the car start very quickly in colder weather?

Others here will have some good suggestions also.....

Everett 68/350/PG/11.90/115mph

No actually rally was a bit slow this year due to the heat and gas prices. but back to the pressure valve, do you think that will work putting one in the rubber line under the hood? the pressure valve in the fuel pump is definitly not holding the pressure. we crimped off the line and built up the pressure and let is sit for 20 minutes, it held 40 pounds and then took of the crimp and it dropped to 20! i just do not want to drop the whole axle and take out the tank to get to the pressure vavle. <BLOCKQUOTE>quote:</font><HR>Originally posted by Everett#2390:
Welcome to the site, Did you people of Rapid City have a sell out crowd for Sturgis?

Concerning your fuel pressure problem, what you are experiencing is normal, pressure will fall after some time.

However, at the ign position, just before cranking, you should here the fuel pump running, for a short time, 20 secs maybe, this is for the purpose of priming the injectors.

There is also a set of contacts on the oil pressure sending unit for the fuel pump to work, you have 20 lbs. oil pressure, you have fuel pump.

I believe there is also a way to cheat the system and supply power to the fuel pump through the ALDL connector under the dash. Get a Haynes manual to find out which pins, it eludes me at the moment. Or go to the library and look up in the reference books.

It may also be the engine is not being fueled enough during cold start due to summer time temperature being too high. Does the car start very quickly in colder weather?

Others here will have some good suggestions also.....

Everett 68/350/PG/11.90/115mph<HR></BLOCKQUOTE>

It sounds like fuel pump for sure. We get paid 5 hrs at our shop to do one. It's not really something I'd like to do laying on the ground, but making any homemade changes to the factory fuel system can be down right dangerous! Worst case, it could burn to the ground. I'd say put a new pump in and forget it...Also, you might be surprised how much better your car will run with a good pump. The pressure function of your old pump could also fail real soon now too..then you'd need to replace the pump anyway and your modification would have to be redone back to factory specs.

------------------
Don~ ZZ430DropTop (http://hometown.aol.com/zz430droptop67rs) Pro-Touring.com DropTop (http://pro-touring.com/featured_cars/Camaro/Don%20Seefeldt%2067%20Camaro/don_seefeldt.htm)
67 RS/SS Convertible, 70 RS/Z28



[This message has been edited by ZZ430DropTop67RS (edited 08-18-2001).]