I just installed my Crawford Plenum, and when i started the Z, i had really low idle, and a awful high pitched sound coming from the engine... sounded like some kind of a leak. I did not put the new gasket in, i left the stock one in b/c it looked like it was still in good shape. Could that be my problem? And if so, do i put the new gasket that Crawford sent me on top of the existing one, or do i take the old one out and put the new one in? You got to understand, im 18 and i just wanna do all the work on my car on my own.

- Chris

 

Chris,

You should put the extra gasket provided by Crawford on. Also, check all your hose attachments, as well as the black nipple in front of the plenum. Review the installation instructions again.

Hope that helps.

 

take it apart, totally; everything you took apart the first time, take apart again.

then reassemble, with the new gasket(just the new gasket).

if it fixes it, great, if not, come on back, might just have to go to a shop to let them fix it then.

pay special attention to the MAF; if you disconnected that during the install. you dont want to damage that, and you dont want to put it back in backwards or anything.

 

Aright, thanks, i just ran it for a while up and down the streets and it ran fine... i think... it has a weird sound to it though... cant really descride it, im sure they all sound like that though. I am going to work on it tomorrow morn, and ill let you all know whats up.

 

I hear it whistles, I donno what that really means cause I dont have one. but it should sound different.

 

yeah that sounds right i guess... does it take time for the comp to read the difference and will it take time for me to see a gain? Thats what i have heard when i put my crank pulley on.

 

You are suppose to use both gaskets!! You probably have an air leak.

 

Does it sound like a diesel or wup wup sound ?

 

As mjedens said, you are supposed to use both gaskets with the Crawford. If any doubts, call Doug @ Crawford & he will confirm this.

PS - I'll reply to your PM after work today..........

 

Like others have said: Use both gaskets. Crank that puppy down tight! Check for rubber nipple on front of plenum.

Make sure you dont have extra bolts leftover. If you do, you probably left out the inside bolts. It causes an air leak and makes some strange noises.

As always the install manuals can be found on the website (http://www.crawfordz.com/support.htm).

 

Thanks guys... im taking it all off again and putting it all back on... I talked to Doug this morning, great responce by the way, and he told me to use both gaskets. Thanks for all of yalls help. - Chris

 

Also watch to make sure the rubber around the oil fill cap does not get caught under the plenum. This tends to be a common area for leakage as well.

 

Well i fixed the problem, it was the gasket. Thanks for all of yalls halp... runs great now... see yall at the Houston meet if any of yall are going - Chris

 

good job. Always great to see someone attempting to do their own work. Its much more satisfying than paying someone, isn't it? Unfortunately, you will find its a long, expensive ride, as doing elective surgery on your car can be very addicting.

btw, I installed my 5th Z exhaust system today (on a friend's car)

 

Thanks man, it is really hard for me to trust some1 else to do the job for me... I mean come on... its my baby. And yes, it is putting a huge hole in my pocket

 

EXTRA BOLTS???

What kind of num nuts would do that??

Oh yeah I forgot, RTFM first!

LOL (Inside joke.)

 

bah the sign of a good install can only be measured by how many parts you have left over.

think of it as weight savings

 

exactly!!

Except the one I had left over was supposed to go inside the plenum (Version 1 at the time) and I had to take everything apart.

lol

 

yeah that sucks... The instructions that i had printed off the internet from Crawford was the old plenum, and it took me about 2 secs to figure out why i had 4 bolts and why the older version plenum had more lol