4x4 actuator on front wheels seems to be acting in reverse. With Engine ON and switch in 2H, I’m getting vacuum to the actuator and the actuator is engaging the axle shaft. When I put it in 4x4, or 4AWD, there is no vacuum at the actuator, and the wheels spins freely without the axle engaging. I...
Glad U have fixed. Just an FYI - if it’s a 4WD drive vehicle, and the WSS light comes back on, check the 4WD actuator for that wheel also to see if it’s damage or having intermittent problems. U can easily check it with a vacuum gauge connected to the big vacuum line on the actuator. If the ring...
Have you checked if the 4WD actuator has gone bad on the driver side causing ONLY that front wheel to go into 4x4 and locking the hub & axle and slowing the truck down? Im going thru the same problem, replaced my calipers & brake hoses only to find out my 4WD drive actuator had gone bad. Easy to...
Hi everyone, the popping noise your are hearing is the blend door actuator that has gone bad. What happens is the gear wheel in the blend door wears out on one side and doesn’t fully rotate anymore. When it gets to the flat spot where the gears are gone it pops and give That flapping sound...
From your description and problem the rear AC blend door actuator seems to have failed . When you turn the the rear control knob from hot to cold, do U hear a noise like a flap flap flap or click click click at a certain setting ? Just remove the panel and check the blend door actuator - a...
Check the vacuum line carefully it’s likely broken. You might have to remove the battery & battery tray to get more room to work. Please note the vacuum line also supply vacuum to the 4x4 switch and there is a one way valve on the line. Make sure the 4x4 is NOT engaging if the line is broken...
I have a 2004 also. 2 things
1) Check if the Catalytic converters are blocked. Have an exhaust shop check it under acceleration. Normal idle might be OK, but under acceleration it’s blocked.
2) check if the front brake are binding - check calipers/hoses. My expy was having issues...
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