Fuel Pump Or Pressure Regulator?!
Thread Starter
Teching In
Joined: Feb 2010
Posts: 26
Likes: 0
From: Pueblo, CO
Fuel Pump Or Pressure Regulator?! Okay, ive had this problem for awhile now..what happens is i can almost never start the car on the first "turn". i took it to my mechanic and he said my fuel pressure seems to be fine when its running..but it wont hold pressure for long when its off..he said it might be my regulator and pulled out this little thing from the engine bay lol..but he said he didnt have a way to test it..said he didnt think it was my pump since it holds pressure fine when its on..i dont have any funky idle or nothing..oh and when the car starts..i hear a little screech..kinda like if you slide your foot on a smooth tile floor...cars power is fine..no hesitations i think..so idk. opinions?
Thanks in advance
-Drew
Thanks in advance
-Drew
My buddies car does the same thing and its the pressure regulator as I understand though the regulator is inside the pump so youd have to replace the whole pump in the tank which is very expensive
Banned
Joined: Mar 2010
Posts: 334
Likes: 3
Find a new mechanic quickly........the thing he thinks is a regulator is actually an acumulator to smooth out the pressure pusles in the fuel rail as the injectors open and close. The regulator is in the fuel pump assembly in the fuel tank.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Yup, that'd be the best thing to do anyway. A racetronix kit is quite a bit less than a new stock assembly, and it flows a lot more than the stock pump.
btw OP I have a spare stock regulator, pm me if you need one.
btw OP I have a spare stock regulator, pm me if you need one.
Joined: Mar 2002
Posts: 2,032
Likes: 26
From: A Racetronix dealer near you...
Okay, ive had this problem for awhile now..what happens is i can almost never start the car on the first "turn". i took it to my mechanic and he said my fuel pressure seems to be fine when its running..but it wont hold pressure for long when its off..he said it might be my regulator and pulled out this little thing from the engine bay lol..but he said he didnt have a way to test it..said he didnt think it was my pump since it holds pressure fine when its on..i dont have any funky idle or nothing..oh and when the car starts..i hear a little screech..kinda like if you slide your foot on a smooth tile floor...cars power is fine..no hesitations i think..so idk. opinions?
Thanks in advance
-Drew
Thanks in advance
-Drew
__________________
Manufacturer / Distributor of Automotive Fuel Systems, Components & Electronics
Please support a Racetronix dealer near you for personalized service.
>WEB SITE<
Manufacturer / Distributor of Automotive Fuel Systems, Components & Electronics
Please support a Racetronix dealer near you for personalized service.
>WEB SITE<
Thread Starter
Teching In
Joined: Feb 2010
Posts: 26
Likes: 0
From: Pueblo, CO
"My 96 Camaro does the same exact thing as you describe. I just had this EXACT conversation with the guy next door to me who owns his own mechanic business. This is how I know haha.
He told me not to worry about it and that it won't affect the fuel pump at all.
My guess is that you would have to drop the tank to access the fuel pump.
The advice I gave you of what to do to start it on the first turn is what he told me to do it it bothered me. "
is what someone told me on ls1.com, i havent found any hesitation..funny sounds..idles fine..mileage is fine..ride is fine..im real paranoid bout my cars so i keep a close eye on that kinda stuff all the time..but yea..opinions?
He told me not to worry about it and that it won't affect the fuel pump at all.
My guess is that you would have to drop the tank to access the fuel pump.
The advice I gave you of what to do to start it on the first turn is what he told me to do it it bothered me. "
is what someone told me on ls1.com, i havent found any hesitation..funny sounds..idles fine..mileage is fine..ride is fine..im real paranoid bout my cars so i keep a close eye on that kinda stuff all the time..but yea..opinions?
Your pump is dead. My old TA did the exact same thing. I could never start it on the first try after it set. I would have to "prime" it several times and then it would start smoothly. I installed a Racetronix on it and it worked like a charm after it.
My car would drive and idle fine once it started. It was the check valve.. It was on a 97.
My car would drive and idle fine once it started. It was the check valve.. It was on a 97.
