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The text above is a follow-up to ...
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The text above is a follow-up to ...
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I have 94 astro van 2wd already open the hatch and I saw a broken line from the litle black box left side the engine I can't where come from .please help me
Than you
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Hi Robert,
I guess by 'hatch' you mean the hood. Hatch to me is the back door. I hope I am right in assuming you meant hood. There is a cable in the rear hatch, too.
Your cruise control is operated by a combination of engine vacuum and a cable. The engine vacuum gives the cruise diaphram a position, which pulls the cable to a position and holds the throttle there.
If this cable broke, you need to get a new one, install it and adjust it. Should not be too big of a deal. You won't have cruise control until then. Try to eyeball the adjustment area of the old one, to get the new one a point to start adjusting from. If you are wrong, the van will cruise at the wrong speed.
One end of the cable attaches to the cruise control mechanism, and the other to the throttle area, where the gas pedal cable connects.
Hope this helps.
C J S
Hello CJS
i am sorry about hatch is a hood inside the truck ,the broken line is neoprene tube I don't where is connected,I saw little "T" with one exit close this connection is left side of the carburetor .
thank you
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Hi again, Robert,
I am to understand the cruise cable is broken, around the carburetor. You need to buy a new cable, and adjust it. It is possible that what you are seeing is the adjustment came apart on your old cable.
Good luck fixing this.
C J S
Hi CJS
the cable is fine ,the neoprene tube is connected on the right side of the little black box I think is from the vacuum line.my question is do you think is from the little
"T" right side on front the carburetor.
Thank you again.
AnswerHi Robert,
Ah-Hah! Now I get it.
OK, you want to conncet this tube to any PORT VACUUM area. You have two types of Vacuum on the motor. Port and Manifold. Manifold is strongest at idle. Port is strongest at open throttle. As you step on the gas, MAN VAC falls off or drops, and PORT VAC increases. Since you will set the Cruise Control at a cruising speed, you will want to tap the Port Vacuum, from anywhere it is found. This is why you are not usually able to use Cruise Control at low speeds.
Two things. One is you should cap off all vacuum lines that are not going anywhere. You could screw up the air/fuel ratio.
Second, is use a vacuum guage to see what type of vacuum the broken line area on the carb is producing. If you don't have a guage, put your finger there. If you feel suction at idle, it is MAN VAC. If not, step on the gas. If you feel suction after that, you have found the PORT VAC, and you can use that for Cruise Control.
Hope This Helps
C J S
