Fuel injection and fuel delivery problems

ANDI CHILDERS

MEMBER
1992 FORD F-150
5.0L
V8
RWD
AUTOMATIC
200,000 MILES

I have the truck listed above with a 5.0 EFI. I have to keep it idled up to stay running. Just about every sensor, EGR etc. Are new. I am down to injectors and back to plugs. The plugs and wires are/were new when we put the newly rebuilt engine in. What is the pounds per hour for the injectors? When looking them up Ford says 19, then I call and the parts guy says 45. Holley makes injectors from 12 -66 pounds an hour. I do not want to waste gas, but I want this little truck to move on out when I step on it! What is your advice? I have been working on this thing for years. I want it to run well for my son who is about to graduate.

4 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Hey Andi

Please remove the EGR valve and see if you can blow through it. Here is a video that will show you how to test it.

https://youtu.be/DqUCbbKdWf4

Please run this test and get back to us so we can continue helping you.

Best, Ken

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Friday, February 24th, 2017 AT 2:09 PM

ANDI CHILDERS

MEMBER
3 POSTS

Ok. That didn't work. It has a new RGR, MAP sensor, position sensor etc. The only things that are not new on this is the TAB/TAD and the injectors. How do I test the injectors?

Was this

answer

helpful?

Yes

No

Tuesday, February 28th, 2017 AT 5:36 AM

HMAC300

MECHANIC
48,601 POSTS

Check fuel pressure with a gauge first auto parts rent it then check for a vacuum leak. don't worry about pounds on an injector on a stock engine unless you are modifying it with a turbo or something similar. see link.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Was this

answer

helpful?

Yes

No

Tuesday, February 28th, 2017 AT 8:19 AM

ANDI CHILDERS