egr valve

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92astro
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Joined: Tue Jan 29, 2008 7:37 pm
Location: oklahoma

egr valve

Post by 92astro »

when does the egr valve come into play on my 1992 astro with T.B.I injection?
bryan in oklahoma i have a 1992 chevy astro with 174,000 miles runs and drives very good with a couple of issues nothing major future mods: 350 smallblock v-8 simple and easy!!, tach, rims and others!!current mods:15%tinted windows
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Topic author
92astro
I finally get the smurf thing
I finally get the smurf thing
Posts: 216
Joined: Tue Jan 29, 2008 7:37 pm
Location: oklahoma

Re: egr valve

Post by 92astro »

does it come into play at idle or above idle?
bryan in oklahoma i have a 1992 chevy astro with 174,000 miles runs and drives very good with a couple of issues nothing major future mods: 350 smallblock v-8 simple and easy!!, tach, rims and others!!current mods:15%tinted windows
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kings-x59
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Re: egr valve

Post by kings-x59 »

The EGR operates between idle and wide open throttle. The EGR should not open at idle rpm.
'89 Astro, 4.3L, TBI. Minor intake and exhaust mods. Rebuilt 700R4 trans (by me). Corvette servo, 0.5" boost valve, police grade 1-2 accumulator spring (shifts fast and solid). B&M stacked plate trans cooler. Bilstein shocks. Belltech sway bars front and back. New head unit, speakers and subwoofer. Needs paint and a new headliner.

name's Steve
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Topic author
92astro
I finally get the smurf thing
I finally get the smurf thing
Posts: 216
Joined: Tue Jan 29, 2008 7:37 pm
Location: oklahoma

Re: egr valve

Post by 92astro »

lets say the egr valve was openning at idle what would happed?
bryan in oklahoma i have a 1992 chevy astro with 174,000 miles runs and drives very good with a couple of issues nothing major future mods: 350 smallblock v-8 simple and easy!!, tach, rims and others!!current mods:15%tinted windows
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GEJ
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Re: egr valve

Post by GEJ »

4.3's are known for carbon build-up that holds the egr valve open.Remove the egr and clean it.Then replace the gasket with a screened gasket.On mine,I replaced the bolts with studs so it was easier to take on and off.
Call me Gary

1985 Astro-"Ole Yellar"
1994 LT Astro
1981 Winnebago-"Baby"
12'dual axle enclosed trailer
The vendor trailer


Lead with my heart & take the hits because of it like a man.
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LiftedAWDAstro
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Re: egr valve

Post by LiftedAWDAstro »

92astro wrote:lets say the egr valve was openning at idle what would happed?
The engine idles real rough and may even stall out. There could be a piece of carbon stuck in there holding it open.
Current rides:
2013 Toyota Tundra DC 4x4
2008 Dodge Nitro 4x4
2005 Nissan Sentra 1.8S Special Edition

Mileage spreadsheet

Vans owned:
1986 Safari 2.5L 4 speed manual - scrapped
1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
2005 AWD, 4.10's - sold to skippy
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