Third Generation F-Body Message Boards

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-   -   1991 5.7L TPI - Vacuum lines by distributor (https://www.thirdgen.org/forums/tech-general-engine/756045-1991-5-7l-tpi.html)

jeffas000073 09-13-2018 11:51 AM

1991 5.7L TPI - Vacuum lines by distributor
 
Can someone please tell me what the vacuums line by the distributor in a 1991 5.7 (350) go to? There are several....some are a somewhat narrow type made of plastic that connect to rubber hoses and 90 transitions. When I was tightening my distributor clamp, I noticed them because they were in the way. There also seems to be some sort of mount for two of the lines to the right (passenger side) of the distributor. I couldn't figure out how to disengage the mount.

Tuned Performance 09-13-2018 11:57 AM

Re: 1991 5.7L TPI - Vacuum lines by distributor
 
The egr vacuum lines and hvac are next to the distributor.
the hvac comes out of the efi loom. The egr comes from under the Throttlebody to the solenoid then onto the egr.

Tuned Performance 09-13-2018 12:00 PM

Re: 1991 5.7L TPI - Vacuum lines by distributor
 

jeffas000073 09-13-2018 12:16 PM

Re: 1991 5.7L TPI - Vacuum lines by distributor
 
Great....thanks!! Does anyone know how to release the mount holding the 2 lines by the distributor? I thought it would simply slide off, but it seems locked in somehow. I'd post a picture, but I don't have access to the car at the moment.

jeffas000073 09-13-2018 12:24 PM

Re: 1991 5.7L TPI - Vacuum lines by distributor
 
Check that......I just found a picture online of the same vacuum connector I'm talking about, but minus the attachment feature that is securing it down by the distributor.

https://cimg1.ibsrv.net/gimg/www.thi...a3271baf87.jpg

Drew 09-13-2018 01:36 PM

Re: 1991 5.7L TPI - Vacuum lines by distributor
 
The EGR solenoid bracket is sandwiched between the coil and it's mounting bracket on the intake. Remove the coil and it comes right off.


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