Whats the name of that part???

Hey I have a 92 s-10 blazer. 4x4. I think I need the part that lives under the battery that actuates the front diffential. the truck wont engage in 4 hi or low. Whats the name of the part Thanks Steve

Thermal linear actuator in that year I believe about 80 bucks at checker auto parts

Thanks guys

S trucks don't use the thermolinear actuator... they use a vacuum actuator.

-Bret

'thermal linear actuator' mounts on the axle

My bad thought they were all changed to TLA

Change the Vaccum Switch on the Transfer Case First.. It is more in likey your Problem.. Ps The hoses running to this switch are close to the exhaust and They Break Check for Vaccum leaks at this switch !!

seeray28 wrote:

if the hoses are toast, re-route them

go up the left frame rail to the brake booster, then across the back of the engine

takes about a half-hour and 25 ft of vac hose