ADJUSTMENT: The following procedure uses a propane enrichment method of adjusting the idle. Use extreme care when using the propane tank. Make sure that it is in a secure location and that the fittings are not leaking.
Holley and Mikuni Carburetors
Disconnect and plug the EGR hose. Disconnect the oxygen sensor, if equipped.
Disconnect and plug the hose at the canister.
Remove the PCV hose from the valve cover and allow it to draw under hood air.
Ground the carburetor switch with a jumper wire, if equipped.
Disconnect the vacuum hose from the computer, if equipped and connect an auxiliary vacuum supply of 16 in. Hg (54 kPa).
Remove the concealment plug. Disconnect the vacuum supply hose to the tee and install a propane supply hose in its place.
Make sure all accessories are OFF . Install a tachometer and start the engine. Allow the engine to run for 2 minutes to stabilize.
Open the main propane valve. Slowly open the propane metering valve until the maximum engine rpm is reached. When too much propane is added, the engine will begin to stumble; at this point back off until the engine stabilizes.
Adjust the idle rpm to obtain the specified propane rpm. Fine tune the metering valve to obtain the highest rpm again. If there has been a change to the maximum rpm, readjust the idle screw to the specified propane rpm.
Turn the main propane valve off and allow the engine to run for 1 minute to stabilize.
Adjust the mixture screw to obtain the smoothest idle at the specified idle rpm.
Open the main propane valve. Fine tune the metering valve to obtain the highest rpm. If the maximum engine speed is more that 25 rpm different than the specified propane rpm, repeat the procedure.
Turn the propane valves off and remove the propane canister. Reinstall the vacuum supply hose to the tee.
Perform the idle speed adjustment procedure.
Connect all wires and hoses that were previously disconnected.
Hope this helps.
You can not manualy set the rpm on your dodge caravan, it is set by your computer and your idle air control valve, if you are having problems with your idle being to high or low you may need to replace your idle air control valve, go to your local auto zone or auto parts store and get a new one, they are pretty easy to replace,just a couple of screws and a electric connection plug, the auto store should be able to give you the location of the part on your vehicle of where it is located.
SOURCE: 1991 caravan, replace wiper switch
too long to list here.
You can e-mail me and I will sen it to you my e-mail is
[email protected]
Or you can look it up at he library.
SOURCE: need diagram for serpentine belt for dodge caravan 1991 free online
My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.
I have only been a free contributor to this site for the past 4-months.
I do not know if you still need this information, but I am going ahead and answering it anyway. You may want to Print the Diagrams for future use.
CLICK on the following LINK. It has the Belt Diagrams you will need.
If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!
Again my apologies...
For the 1991 Dodge Grand Caravan:
http://www.2carpros.com/car_repair_information/year/1991/make/dodge/model/grand_caravan/1991_dodge_grand_caravan_drive_belt_routing_diagram.htm
Testimonial: "thanks for your help it was along time ago and forgot to let you know thank you so much "
SOURCE: how to adjust a rack & pinion on a dodge caravan 2000
there is no adjustment on chrysler rack & pinion,
584 views
Usually answered in minutes!
×