2000 Chevy Astro No Fuel Pressure

2000 Chevy Astro No Fuel Pressure

Postby Disarobbry [OP] » November 10th 2020, 5:25pm

Got a 2000 Astro for free, and initially had it running. Replaced fuel pump relay after jumping the battery and it ran. Ran for about 25 minutes after being helped with starting fluid and then died. Wouldn't start at all. Low fuel pressure at all times (koeo, cranking etc all about 30 psi) Figured I'd replace the fuel filter and go from there. New fuel filter brought me down to 10 PSI primed and cranking and eventually rose to about 20ish. Figured fuel pump so went ahead and knocked that out. Still 20ish PSI at Schrader valve when cranking. Codes are P0200 and P101. Confused because Schrader valve is before fuel regulator but I have no idea what could be causing this issue. Any help is appreciated.
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Re: 2000 Chevy Astro No Fuel Pressure

Postby AstroWill » November 10th 2020, 8:43pm

If you are getting good power to the new pump and still no pressure then it's probably the regulator.

A fuel pump sitting in fuel will only create flow, needs to have a restriction to build any useful pressure. That restriction comes from the fuel pressure regulator. Engage the pump and gently pinch off a return hose to see if it starts to build pressure, watch your gauge and don't let it get above 70psi while testing.

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Re: 2000 Chevy Astro No Fuel Pressure

Postby Disarobbry [OP] » November 10th 2020, 9:26pm

Not that I know much about this fuel system but the regulator is after the rail, is it not? Most of the cars I've worked on have the regulator are inline or attached to the tank. Also, is it possible this is causing the codes as well?
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Re: 2000 Chevy Astro No Fuel Pressure

Postby AstroWill » November 11th 2020, 12:31am

Disarobbry wrote:Not that I know much about this fuel system but the regulator is after the rail, is it not? Most of the cars I've worked on have the regulator are inline or attached to the tank. Also, is it possible this is causing the codes as well?


It's in the plenum, part of the injection spider assembly. It's job is to hold back ~60psi of fuel, letting anything above that flow back to the tank through the return lines.

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Re: 2000 Chevy Astro No Fuel Pressure

Postby Disarobbry [OP] » November 11th 2020, 2:41am

Couldn't find a decent how to on replacing that, any links?
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Re: 2000 Chevy Astro No Fuel Pressure

Postby AstroWill » November 11th 2020, 4:04am

If that is confirmed to be your issue, I would replace the entire spider assembly while you are in there with the newer style injectors instead of poppet valves https://amzn.to/3eUpQSg
I would also replace the lower intake manifold gasket if it hasn't been replaced already, they are virtually guaranteed to eventually leak. Better than going in there twice. https://amzn.to/38u45Y3

Grab the GM techline eSI(links in sig) factory service manual for your van, has all of the detailed repair/diagnostic instructions and wiring diagrams/etc.

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Re: 2000 Chevy Astro No Fuel Pressure

Postby Disarobbry [OP] » November 11th 2020, 4:43am

Mediafire link was toast and I'm unable to use a torrent on my work computer(which is the only one I have ATM) Any other way to access it?
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Re: 2000 Chevy Astro No Fuel Pressure

Postby AstroWill » November 11th 2020, 7:10am

Disarobbry wrote:Mediafire link was toast and I'm unable to use a torrent on my work computer(which is the only one I have ATM) Any other way to access it?

Mediafire link still works, but requires some manual labor ;)

Here is some help with virtualbox as well https://sites.google.com/site/astrosafa ... virtualbox

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Re: 2000 Chevy Astro No Fuel Pressure

Postby Disarobbry [OP] » November 11th 2020, 7:55pm

AstroWill wrote:
Disarobbry wrote:Mediafire link was toast and I'm unable to use a torrent on my work computer(which is the only one I have ATM) Any other way to access it?

Mediafire link still works, but requires some manual labor ;)



Yep, got it.
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Re: 2002 Chevy Astro GM techline eSI

Postby captainleeward » December 11th 2020, 5:47am

How do I get the Grab the GM techline eSI(links in sig) factory service manual for my van ?

thanks in advance......Cap.
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Re: 2002 Chevy Astro GM techline eSI

Postby sixsix » December 11th 2020, 5:22pm

captainleeward wrote:How do I get the Grab the GM techline eSI(links in sig) factory service manual for my van ?

thanks in advance......Cap.


This is from a post from AstroWill back up the page a bit - Nov. 11th:
AstroWill wrote:... Here is some help with virtualbox as well https://sites.google.com/site/astrosafa ... virtualbox


Here is another link from his Astro-Safari-Info Links:
https://sites.google.com/site/astrosafa ... s_and_Docs

Sounds like it is a bit of work - But - Very Beneficial - Never heard of any complaints.
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Re: 2002 Chevy Astro GM techline eSI

Postby stentstent is online! » December 11th 2020, 5:50pm

sixsix wrote:
captainleeward wrote:How do I get the Grab the GM techline eSI(links in sig) factory service manual for my van ?

thanks in advance......Cap.


This is from a post from AstroWill back up the page a bit - Nov. 11th:
AstroWill wrote:... Here is some help with virtualbox as well https://sites.google.com/site/astrosafa ... virtualbox


Here is another link from his Astro-Safari-Info Links:
https://sites.google.com/site/astrosafa ... s_and_Docs

Sounds like it is a bit of work - But - Very Beneficial - Never heard of any complaints.


i tried to get the gm tech downloaded to an iMac awhile back but all i got was malware (sounds like a t-shirt). i need to try this again.
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Re: 2000 Chevy Astro No Fuel Pressure

Postby Leeann_93 » December 12th 2020, 3:16am

Works fine on my iMac.
'05 Astro AWD vin X
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Re: 2000 Chevy Astro No Fuel Pressure

Postby stentstent is online! » December 12th 2020, 5:38pm

thanks Leeann, i'll try again. it sounds like you get a whole library of stuff with the download. i've acquired the '98 & '99 paper copies of the M/L manuals, but the 2000 thru 2005 hardcopies are still pretty expensive.
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Re: 2002 Chevy Astro GM techline eSI

Postby AstroWill » December 15th 2020, 12:49am

stent wrote:i tried to get the gm tech downloaded to an iMac awhile back but all i got was malware (sounds like a t-shirt). i need to try this again.


Use the links in my sig. For the torrent, I recommend uTorrent. Once you have the OVA downloaded, use Virtualbox to run it: https://sites.google.com/site/astrosafa ... virtualbox

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Re: 2000 Chevy Astro No Fuel Pressure

Postby stentstent is online! » December 15th 2020, 8:54am

thanks AstroWill i'll try it this weekend & let you know
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Re: 2000 Chevy Astro No Fuel Pressure

Postby AstroWill » December 16th 2020, 3:25am

stent wrote:thanks AstroWill i'll try it this weekend & let you know

No prob, if you run into any issues, feel free to PM me.

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Re: 2000 Chevy Astro No Fuel Pressure

Postby Disarobbry [OP] » December 28th 2020, 10:50pm

Just a heads up but I will be finally tackling this thing this week. Compared to clutch replacements and jeep heater cores this is a cake walk. Pump is priming so I know it is getting good power and fuel filter is new. Found the spider unit online but wasn’t sure which units to avoid?
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Re: 2000 Chevy Astro No Fuel Pressure

Postby stentstent is online! » December 30th 2020, 7:37am

Disarobbry wrote:Found the spider unit online but wasn’t sure which units to avoid?


this is the delco injector spider with the upgraded injectors - i got it for my 1999 but haven't put it in yet :
spider.jpg

ick12.jpg
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Re: 2000 Chevy Astro No Fuel Pressure

Postby stentstent is online! » December 30th 2020, 8:01am

Disarobbry wrote:Couldn't find a decent how to on replacing that, any links?

leann did a great writeup about changing her injection spider :
https://www.astrosafari.com/viewtopic.p ... &start=260
it starts on her page 14
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