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just as the title says, im taking my intake manifold off after i noticed that the gasket has a hole in it and is causing my idle problems. What other things should i/ can i do while i have that all apart? Thanks.
 

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I am gonna install my FFIM in a couple of weeks, but I plan to change all accessible gaskets from that side... Like the EGR & valve cover gaskets and any vacuum lines that run underneath.
 

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word on the knock sensors. even if they look good it wouldnt help to get it replaced (both the sensors and the wiring)

also, put new gaskets on the manifold. bad intake mani gaskets can lead to shitty performance and gas milage.
 

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Polish the intake manifold and make it SHINY!
 

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install some direct port nitrous jets?
 

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something simple yet smart would be to check any and all electrical/vac lines and make sure they are ok. No burn marks, pinned back and away from any danger, etc....
 

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better yet, cap them all off. but you have to reroute the one from the block to something else, cant remember. less hoses, less problems.
i capped the one for the isc or something, cant remember. i got 2 hoses left.
 

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BMM
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^ ?? i have never heard of any one doing that
 

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ISC and TB coolant hoses are only for warmup in cold climates (emissions). Since there is no standard for "having coolant lines attached", even in evil Cali, people decide to remove them so there's less heat in the intact tract (of course, without a FFIM, it's wasted heh).
 

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ahh, i see. thanks for clearing that up!
 

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I pulled my hoses off the TB and ISC last fall... drove the car through the winter (it got C O L D) and I did not have ANY issues at all.
 

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why not do a little port and polish on the manifold? Smoother air flow is always a good thing!....Also i am doint a build of my 7M and just purchased the new knock sensors...how much more are the wires?
 

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Shlongor said:
ISC and TB coolant hoses are only for warmup in cold climates (emissions). Since there is no standard for "having coolant lines attached", even in evil Cali, people decide to remove them so there's less heat in the intact tract (of course, without a FFIM, it's wasted heh).

Incorrect.

It is to prevent icing and the throttle sticking open in humid freezing climates. If you drive your car in the winter, I would leave them.
 

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90T
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That is true, the coolant has no effect on emissions. The icing can occur well above freezing if the humidity is high (due to the drop in pressure past the ISC pintle valve and throttle plate). I don't see any value in rerouting those hoses. Based on my experience, they last at least 16 years, so just replace them every 16 years and you will be fine.

aljordan said:
Incorrect.

It is to prevent icing and the throttle sticking open in humid freezing climates. If you drive your car in the winter, I would leave them.
 
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