Need help

[RedTyFoon]

Guys got a problem with the syclone...Slow cruise nail it around 20 mph makes boost but wont pick up any RPM or mph.....?...Tranny is fine?...Any ideas...I noticed with race gas the truck was getting alot of knock...Wonder if the knock sensor went bad and is causing it to pull everything out????? Anything would help...Completely lost...John

 

[Hu Ryde]

Re: Need help

Does it downshift or anything related?

Have you had the truck on a scan tool?

 

[VermontTy]

Re: Need help

Does it downshift or anything related?

TV cable came to mind right off......

 

[RedTyFoon]

Re: Need help

It has been scanned a few wierd things but nothing outstanding...It just started out of the blue...No it does not down shift..The tranny is recently rebuilt. I have never had a minutes trouble out of it...Where is the knock sensor mounted?

 

[VermontTy]

Re: Need help

there's the kickdown cable that runs right off the throttle body; attached right by the throttle cable. Take a look at it and see if there is slop, etc. in the cable or connection to the throttle linkage.

http://www.tciauto.com/instructions/gm_tv_cable_adjust.htm

 

[EcSy#2671]

Re: Need help

The knock sensor or "ESC" is located on the back of the Engine just above the Transmission on the Driver side. In line with the Head.

 

[Bill Z]

Re: Need help

John,

Like they said above,
Does the transmission down shift?
Is your timming set to zero at idle with the sensor unplugged?
Did you plug your sensor wire back in?

Bring it by and let me look at it.

Bill