darlandz

Okay here is the problem. i got a 95 z28. So my car starts fine and everything is great and then once it is good and warm at normal operating temperature, i come to a stop sign and hold the brakes down pretty good and the cars rpm's are jumping and its starting to bother me. So what are the major spots for a vacum leak, or is it something else? the only thing i can think of is where i cut the spot for the gigantic tube out of the intake elbow, but i taped it really well.... i dont know though let me know. thanks

30696bird

Buy a new elbow.....tape ain't gonna get it! If that does not fix it maybe it's the MAP sensor. Just a guess.

mrmint69

I would check to see if your getting any codes. It could be a number of things so it might take some work. You should be able to find the problem without just buying new parts so i would go that route first.

greenmachinedriver

does the rpms still jump if you take your foot offthe brake and put it in neutral? if not your brake booster may be leaking.

darlandz

yes that is exactly how it is. i put it in drive and its like jump jump jump and then neutral is smooth as a bird. and why is that jump so hard once its warm though? and not so noticable when its cooler? o and just a quick question to throw in here also is there anything i can put on my belt to make it stop squeking. i bought a cheap belt at auto zone... maybe should've went with the more expensive one...