What controls the choke on a 99 silverado 4.8?̡̡ ̡͌

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Sep 14, 2009 | 09:55 PM

#11

budhayes3

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From: Hackensack, NJ

I used to work on Land Cruisers with manual chokes....

Maybe the OP means what controls high idle? Which would be the IAC valve in conjunction with a richer fuel mixture...

Sep 14, 2009 | 10:06 PM

#12

built408

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From: Fort Worth Texas

Depends, is a 750 single pumper? or double pumper?

Sep 14, 2009 | 10:07 PM

#13

skolman91

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From: muncie IN

stomp your feet clap your hands then hit the gas and the brake pedal at the same time then your efi engine is now choked..

Sep 14, 2009 | 10:09 PM

#14

BEAUCHAMP

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Wow ok I'm not an idiot lol But my truck is not revving up like its sposta when i start it i have to give it gas to start it and it idles real low until it warms up so YES I USED THE WORD CHOKE

Sep 14, 2009 | 10:11 PM

#15

dirt track racer 81

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From: Hennessey, Oklahoma

Quote:

Originally Posted by built408

Depends, is a 750 single pumper? or double pumper?

possibly a 3 barrel?? http://cgi.ebay.com/ebaymotors/HOLLE...=p4506.c0.m245

Last edited by dirt track racer 81; Sep 14, 2009 at 10:17 PM.

Sep 14, 2009 | 10:21 PM

#16

MikeGyver

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From: Suburban Chicago

A buddy had a SD 455 Firebird that came with that carb.

Sep 14, 2009 | 10:24 PM

#17

MikeGyver

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From: Suburban Chicago

Quote:

Originally Posted by BEAUCHAMP

Wow ok I'm not an idiot lol But my truck is not revving up like its sposta when i start it i have to give it gas to start it and it idles real low until it warms up so YES I USED THE WORD CHOKE

It sounds like your IAC valve is stuck, some carb cleaner sprayed in the right spot might help.