Hey guys,

Been a while since I posted on here. I just finished a rebuild on a fuel injected 22re and installed it in my 86 pickup. It starts and runs but.....

1. There is a painfully loud ringing/whistling coming from around the intake.

2. The timing is set at 8 deg. BTDC and the idle wants to sat around 1800 rpm even after warm up

3. I've noticed a small misfire every second or two throughout the driving speed range.

I've adjusted both idle settings back and forth and checked around but I can't seem to figure this one out quite yet. Any thoughts? Note.... I have to install an exhaust there is currently no muffler on it.

https://www.facebook.com/video.php?v...54&pnref=story

I have a video clip if anybody know how to post one here from a phone.

 

nobody?

 

Intake leaking??

 

Something not right under the valve cover?
Exhaust leak?

 

Definitely seems like an air or exhaust leak somewhere, as the pitch does not directly match the rpms. It's like what happens to a whistle when you blow more or less air through it.

I would grab some vacuum caps and isolate the intake completely from any vac lines. Also a stethoscope might help you pinpoint where it is coming from. Just be careful not to blow your eardrums out!!

From start to finish, you could isolation check

air filter to
afm to
throttle body
idle air control valve (try pinching the hose and see if that drops rpms, if so it's stuck open)
egr vac hoses on top of the TB
a/c and power steering idle up air valve
a/c vsv
fuel pressure up vsv
brake booster vac line
brake booster check valve
brake booster diaphragm
cold start injector connection to plenum
egr modulator
egr connection to end of plenum
upper/lower intake gasket
lower intake to head
valve clearances
exhaust manifold
cat

 

Thanks guys.... I was leaning towards an air leak somewhere. Ill start the check. Were you guys able to see the video?

 

Yes, video played ok for me.

 

Any word on this? Looking forward to knowing what that sweet noise is coming from

 

Odd that the pitch doesn't change when you increase idle speed. It doesn't really sound like a vacuum suction leak though, more like pressure build-up relief (think of a whistling stovetop kettle). You can use a can of carburetor cleaner spray to check for intake leaks. Just spray a little at a time around the intake and vacuum lines and listen for an increase in idle speed, which would indicate the presence of a leak. If on the other hand it were an exhaust leak I'd expect that you could smell it or at least see carbon build-up somewhere. It also sounds a little metallic - possibly a bad bearing, but again I would expect a change in pitch as you increased idle speed. How old is your alternator? I had a bearing go out on one with 225k miles and it made a high pitched buzzing sound, but worked perfectly otherwise. Listen in that general area to see if you can isolate the noise and definitely let us know what you discover. Good hunting.

 

My guess would be bearing someplace. I have never had something like that happen on a vehicle but I am into rebuilding bicycle's and I often hear a bearing make a loud scream, that doesn't change much with rpm speed.
Other then that like other's said it really sounds like a air leak. I have heard of the air intake getting a crack in them.

 

long overdue but the ringing was a leak between the intake plenum and throttle body

 

Glad you found it. Was it the gasket between them or something else?

 

yea i replaced the gasket and put rtv on both sides. that solved it. Now the im getting coolant in th combustion chamber. I just pulled the head....... -_-