why do my new injectors leak down quickly
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Joined: Dec 2004
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From: my garage
Car: 84 firebird T/A
Engine: shinny 350
Transmission: slush box L65
Axle/Gears: Torsen "3.73"
why do my new injectors leak down quickly
Can anyone offer an opinion why my new accel 24 lb injectors bleed of pressure quickly when the engine is turned off?
thx
Jeff
thx
Jeff
Supreme Member
Joined: Feb 2008
Posts: 1,004
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Car: 90 IROC
Engine: 5.7 TPI
Transmission: 4L60
Axle/Gears: 3.23
Re: why do my new injectors leak down quickly
How do you know for sure that it's the injectors? It could be the fuel pump or plumbing. Did you put a new fuel filter in? Is there any possibility you got dust or dirt into the injectors during the install?
Joined: Jan 2006
Posts: 930
Likes: 6
From: Sweden
Car: 1989 IROC-Z
Engine: 350 TPI
Transmission: Th700R4
Axle/Gears: 3.27
Re: why do my new injectors leak down quickly
Is there yellow or silver/white accel injectors.. My Accel injectors (yellow) seems to be bad, (not all of them but some...)
I think I will buy new ones, Ford Racing injectors instead..
You can try and see if its the pump / or injectors / regulator..
Sqeeze the return hoose and see if the pressure holds.. if it holds your regulator or injectors are bad..
If you sqeeze the input after shutting of the ignition and the pressure holds its the pump, (f you remove the clamp and the pressure drops its going back thru the pump..)
If you start the car and remove the vacuumhose from the regulator, if it comes out fuel its bad.. you need to change the regulator.. if not, there may be your injectors that are bad..
I think I will buy new ones, Ford Racing injectors instead..
You can try and see if its the pump / or injectors / regulator..
Sqeeze the return hoose and see if the pressure holds.. if it holds your regulator or injectors are bad..
If you sqeeze the input after shutting of the ignition and the pressure holds its the pump, (f you remove the clamp and the pressure drops its going back thru the pump..)
If you start the car and remove the vacuumhose from the regulator, if it comes out fuel its bad.. you need to change the regulator.. if not, there may be your injectors that are bad..
Thread Starter
Senior Member

Joined: Dec 2004
Posts: 556
Likes: 0
From: my garage
Car: 84 firebird T/A
Engine: shinny 350
Transmission: slush box L65
Axle/Gears: Torsen "3.73"
Re: why do my new injectors leak down quickly
I have replaced everything it is the injectors they are the yellow 24 lb ones.
Anyone have a suggestion for a decent 24 lb injector? part#?
thx
Jeff
Anyone have a suggestion for a decent 24 lb injector? part#?
thx
Jeff
Senior Member
Joined: Mar 2008
Posts: 428
Likes: 0
From: nj
Car: 89 iroc
Engine: l98
Transmission: tremec
Re: why do my new injectors leak down quickly
hi my brother has a set of Bosch 24 part 0280150947 used 1 day at the track trying to get his mustang right.. had to go to 30's.. he wants 150 for the 8.. they are perfect
Thread Starter
Senior Member

Joined: Dec 2004
Posts: 556
Likes: 0
From: my garage
Car: 84 firebird T/A
Engine: shinny 350
Transmission: slush box L65
Axle/Gears: Torsen "3.73"
Re: why do my new injectors leak down quickly
I am thinking about your offer. I kinda hate buy buy stuff not specific to my application
thx
jeff
thx
jeff
Senior Member
Joined: Mar 2008
Posts: 428
Likes: 0
From: nj
Car: 89 iroc
Engine: l98
Transmission: tremec
Re: why do my new injectors leak down quickly
jeff the only reason that bosch injectors are not in you car is because of the contract with rochester products,, gm had to use that crap multec injector.. 85-88 had bosch in them.. then in 97 they went back to bosch.. now delphi has the contract.. the bosch work great in our engines
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Joined: Jan 2006
Posts: 930
Likes: 6
From: Sweden
Car: 1989 IROC-Z
Engine: 350 TPI
Transmission: Th700R4
Axle/Gears: 3.27
Re: why do my new injectors leak down quickly
Yeah the bosch are really good, alot better then Accel yellow injectors.
The new White/silver Accel injectors are very good they say... I have the yellow ones, and its not running right with them...
The new White/silver Accel injectors are very good they say... I have the yellow ones, and its not running right with them...
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