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pressure required to injectors 2000 Chevy Astro


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Richard c
User

Jul 5, 2010, 4:55 PM

Post #1 of 14 (5235 views)
pressure required to injectors 2000 Chevy Astro Sign In

Greetings, Our 2000 Chevy Astor ,4.3 lt, stopped dead while driving. I checked the fuel filter, it was clogged. I changed the filter. The engine wouldn't start unless I introduced fuel into the manifold.
I checked the fuel pressure to the injectors it was 20 lb.

Question: Is 60 lb pressure still required on the 2000 model with 4.3 lt?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 5, 2010, 5:16 PM

Post #2 of 14 (5231 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Yes, it is. You need a minimum of 55 PSI to run. Make sure your checking that cranking.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Jul 5, 2010, 5:16 PM)


Richard c
User

Jul 5, 2010, 5:26 PM

Post #3 of 14 (5224 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Thanks for taking the time to reply. I have a 95 GMC safari. I had to replace the fuel pump on a couple years ago and the and the spider ,Injector set up, as well, what a bother. The injector was under the manifold.

Question: Looking at this 2000 Chevy Astor the injector looks like it can be serviced form the top, is that so?

Richard


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 5, 2010, 5:29 PM

Post #4 of 14 (5222 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

It's under the manifold like the last one but your problem is with the fuel pump and that's inside the fuel tank.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Richard c
User

Jul 5, 2010, 5:36 PM

Post #5 of 14 (5218 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Yes! I know. I didn't enjoy dropping the tank.

Question: Have you ever seen the screen on the pump clogged badly enough to so it could be cleaned and the pump reinstalled? Thanks

Richard


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 5, 2010, 5:38 PM

Post #6 of 14 (5215 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Never, Even if it was possible, it would ruin the pump too.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Richard c
User

Jul 5, 2010, 5:46 PM

Post #7 of 14 (5211 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Thanks! The condition of the fuel filter was the worsed I've seen, that must have been the cause of the pump failure.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 5, 2010, 5:48 PM

Post #8 of 14 (5208 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

That's what ruined your pump but you'd better make sure you get it all cleaned out of the tank when you change the pump or you will ruin the new pump too.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Richard c
User

Jul 5, 2010, 5:59 PM

Post #9 of 14 (5204 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

I'll do that! We had just gotten petrol 15min before the failure, makes you wounder.


Richard c
User

Jul 6, 2010, 10:02 AM

Post #10 of 14 (5197 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

The price of replacement parts is from $94 to $350. What is your thought?

Richard


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 6, 2010, 10:08 AM

Post #11 of 14 (5194 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Thought on what. Brand wise, I would use nothing but Delco. Those prices all sound cheap.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Richard c
User

Jul 6, 2010, 10:12 AM

Post #12 of 14 (5191 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Sounds right I found a delco priced at $254 plus shipping.

Richard


Richard c
User

Jul 18, 2010, 7:42 PM

Post #13 of 14 (5173 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Installed the new pump, she runs good again. Thankyou for the help.

Richard


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 19, 2010, 2:36 AM

Post #14 of 14 (5169 views)
Re: pressure required to injectors 2000 Chevy Astro Sign In

Glad to hear it. Thanks for posting the fix..



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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