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6.0 vacuum to hydroboost brakes

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Old 09-10-2020, 04:13 PM
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Default 6.0 vacuum to hydroboost brakes
I've been having trouble getting my 6.0 ls to idle. The engine came from a vacuum brake truck, mine has hydroboost. I know everyone says to just plug the vacuum line off, when I plug the line the truck won't idle, sounds good at higher rpms but still rich.
New O2 sensors, plugs, and wires.
Any ideas??
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Old 09-10-2020, 05:51 PM
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Originally Posted by WGreen75
I've been having trouble getting my 6.0 ls to idle. The engine came from a vacuum brake truck, mine has hydroboost. I know everyone says to just plug the vacuum line off, when I plug the line the truck won't idle, sounds good at higher rpms but still rich.
New O2 sensors, plugs, and wires.
Any ideas??
Its not getting enough air. whether its the throttle blade open enough or the iac.
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Old 09-10-2020, 08:02 PM
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Originally Posted by Kfxguy
Its not getting enough air. whether its the throttle blade open enough or the iac.
Dumb question - Is the IAC a separate sensor or in the throttle assembly?
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Old 09-10-2020, 10:16 PM
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Originally Posted by WGreen75
Dumb question - Is the IAC a separate sensor or in the throttle assembly?
if you have drive by wire then it needs more idle air. Stock cam?
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Old 09-11-2020, 06:53 AM
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Originally Posted by Kfxguy
if you have drive by wire then it needs more idle air. Stock cam?
yes, all stock. Do I have to have it tubed for more air?
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Old 09-11-2020, 06:54 AM
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Originally Posted by WGreen75
yes, all stock. Do I have to have it tubed for more air?
*tuned
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