Time to change egr valve and map sensor

Time to change egr valve and map sensor

Postby khundan [OP] » June 7th 2012, 2:25am

I have a '94 4.3L with a z vin. It threw off codes to replace the egr valve and the map sensor. I replaced the map sensor but am feeling nervous with the egr valve. I believe it is 10 mm bolt on it but it feels a little loose. Someone suggested it could be a 9.5 mm but that seems way to odd. I started it up after the map sensor and there is no code, but it is running a little rough.

I'm feeling like I should change the egr valve. Could someone tell me what bolt size that is? I really do not want to strip it and have to use an easy out. Any help would be greatly appreciated.
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khundan
Fueling (Empty tank)
Fueling (Empty tank)
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Year: 1994
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Extra Info: 4.3L V6 RWD Z vin

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Re: Time to change egr valve and map sensor

Postby gg/ss » July 19th 2012, 6:40am

try a 3/8 socket
gg/ss
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Re: Time to change egr valve and map sensor

Postby Leeann_93 » July 20th 2012, 2:59am

They are 10mm. Try another 10mm socket, prefrably 6 pt, or a box-end wrench.

Oh, and most EGR valves don't die, they get plugged. Pull it off, clean it, reinstall it with a clean screen gasket by Dorman/HELP!
'02 Astro LS AWD vin X
'00 Astro LS AWD vin W - WIP
'99 Safari XLE AWD vin W - broke
'93 AWD EXT vin W - real broke
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