U might be able to but u have to go though alot of wireing to do that and it depends on the set up
SOURCE: how to change 4 wd motor(actuator) 1997 s10
Before changing the actuator check the vacuum lines at the vacuum switch on the left side of the transer case if they are wet with transmission fluid the the switch is bad and that will prevent 4wd from engaging.
SOURCE: I have a 2002 Chevy
Fuse is located at the end of eh dash on drivers side and the Actuator is located at the front differential and on the passenger side.
When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.
Check voltage at the connector for the front actuator (at the front differential - it looks like a large bullet that threads into the front diff.) If it has 12 volts, the actuator is the problem. If it does not have 12 volts, check the transfer case switch and the power feed to the transfer case.
I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.
GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.
Good luck. The actuator is usually the problem 90% of time but recheck all of the wire harness just to maker sure there is no short before replacing any parts. The actuator may not be fully engaged or disengaged and the fork to the spline may be what is causing the grinding.
88-UP C/K ACTUATOR UPGRADE
VEHICLE SERVICED: 88-99 CHEVROLET FULL SIZE
PURPOSE: IMPROVE AXLE CONNECT ENGAGEMENT TIME AND
COMPONENT RELIABILITY.
SYMPTOMS: NO FRONT DRIVE AXLE ENGAGEMENT WHEN SHIFTED INTO 4X4.
Obtain the following GM part numbers:
(1) 26060073 Actuator
(1) 88959465 Harness/Spacer Kit
SOURCE: 2002 Buick LeSabre no heat,
Hi The first thing to check is the coolant level and to insure the thermostat is working. Usually just putting in a new thermostat is the best thing to do. When you have already replaced it then make sure there are no air bubbles in the cooling system. Here's the procedure for bleeding the cooling system.... Loosen the air bleed bolt in the thermostat housing, then fill the radiator to the bottom of the filler neck with the coolant mixture. Tighten the bleed bolt as soon as coolant starts to run out in a steady stream without bubbles. With the radiator cap off, start the engine and let it run until warmed up (radiator fan comes on at least twice). Then, if necessary, add more coolant mix to bring the level back up to the bottom of the filler neck. Put the radiator cap on tightly, then run the engine again and check for leaks. Check the links for the diagram... http://z.about.com/d/autorepair/1/0/q/5/62455816.gif The next thing to check is the Heater Control Valve. With the heat selector on HOT, the valve should be open. Feel the heater hoses, they should be equally hot on both sides. If not, the valve is not opening and needs to be replaced. http://z.about.com/d/autorepair/1/0/r/5/78721688.gif If after this you still have no heat, you need to check the HVAC controls. There is a cable that goes from the temperature selector switch to an air mix door. Check to see that it is still attached on both ends and not kinked. Its been seen many cables bend and distort at the air mix door. http://z.about.com/d/autorepair/1/0/s/5/56533993.gif Please get back to us if you have further query else please accept the suggestion.
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