hi guys,,, just a quick one,,,
Im trying to fix my cold cold start problem,,,, was wondering if i had a possible vacuume leak. once the car is started it runs fine and i pull - 9psi vacuume (vacuume seems quite steady) just wanted to know if i had a vacuume leak would my vacuume be lower ,,, say 6psi?????

 

To add another small question,,,if i had a leak in the LIM gasket (the bottom one) what would the symptoms be???

 

magic/ rynberg?? anyone

 

If you have a leak in that area, depending on the size of the leak you might experience a rough idle, low vacuum and fuel odor.

 

i am having low vacume problems and rough iddle can someone tell me which one is the LIM gasket ? so i can check mine

 

The LIM gasket is the one between the core motor and the Lower Intake Manifold.

 

Under these bolts. There are other causes for your symtoms too.

 

which other causes. the car idles hunting between 1000-1500 and when i cold start it the car is fine as long as the electronic choke is on and after then erv start hinting and black smoke starts comming from exaust. even if i set it to idle at 3000 rpm still it will hunt between 3000-3500 rpm. car hesitates between 5000-6000 rev but if i keep pulling it for some time lets say a few miles the hesitation disapears

 

I circled the wrong gasket. The one I circled is the LIM to UIM gasket, which could also leak vacuum. As Mahjik indicated, the LIM gasket is beneath the area I marked. You follow the LIM down to the engine block. Sorry.

 

My vacuum at idle is at least 19 in/hg depending on RPM it's idling at.

9 in/hg seems awfully low.

 

well the hesitation was due to the pipe from the map sensor connecting to the intake manifold was leaking fixed that.


and the car hunting for idle is due to the screw on the right side of the thortolle body i noticed it was loosened so much that it was hanging to the fiting. i started the car and pushed the butterffly it was attached to down wards with my hand and it fixed the problem. now i tightened it a little clockwise as much as easily possible with the hand and now with head lights on the problem is fixed but with head lights of the proble is still there any idea what this screw does and how much to tighten it

 

that is the fast Idle cam adjustment screw and wax rod. Page F79 in the FSM

 

Don't forget about the kanooder valve, and the flux capaciter.

 

a liile more details please and there is a cylindercial unit behind this with a white electrical conector to it what does do also ??


and can this adjustment cause the hunt for idle and hesistaion while driving ?

 

Ok i think i have messed up my adjustment on that any one can explain simply how to adjust that and what does that do

 

My problem is fixed i had to turn the throttle sensor anticlockwise or in other words the connector downwards the most i could. now the iding and hesitation both are fixed is this extreme postion for the throtle sensor ok ?

 

interesting,,,ill check my throttle position sensor settings (factory manual)