Put the Plenum back on today: HELP

not4kt · 08-17-2004, 05:11 PM

Well I recieved the starter yesterday and was able to reassemble everything. I put new coil packs on as well as plugs and wires.

When I was putting everthing back together, I cam across a hard plastic hose that came from the, I believe the Evaporator canister purge
solenoid (It's right in front of the coil packs). I could not find a home for this hose. I searched for about an hour and decided to just leave it off, hoping it was supposed to be that way because I could'nt recall taking it off.

well I got everthing else back in place and the car started up but I noticed a hissing sound coming from the engine area? I let the car run for several minutes and everthing seemed to be working fine, except I noticed the idle was about 1000rpm. Proir to the plenum removal it was about 650 to 700rpm.

I drove the car about 20 minutes, and she ran great, plenty of power. I got me spped up to about 92 mph for a short bit. When I got back home, she still was idling high, 1000rpm to 1050rpm.

So I'm assuming the mystery hose is my probelm. What do you guys think?

Marcus
1991 ZR1 #1887

Jeffvette · 08-17-2004, 05:20 PM

It does need to be hooked up. Take it apart and get a picture of the hose. I believe it connects into a check valve that typically will fall into the V of the block. Easy to miss. But nothing should be disconnected with the vacuum system.

not4kt · 08-17-2004, 05:26 PM

I should have known better, but I was hoping (Praying) everything was going to work. Do think this is the cause of my high idle?

Jeffvette · 08-17-2004, 07:20 PM

Not a doubt in my mind.

We Gone · 08-17-2004, 10:51 PM

Hope this helps

http://zr1.net/gifs/vacuum.jpg

not4kt · 08-18-2004, 02:47 AM

It's fixed, the hose I missed went to the bottom of the plenum, towards the front. Took her out for a spin, everything works great and my idle is back to 650rpm. I just hope the new starter cured my no start problem. Thanks for the help.

Marcus