So I'm having a slight hesitation on my '95 DI. This actually has a 4.2L engine in it. Overall the truck runs and idles smooth and pulls strong under acceleration. However, it's been having this odd random hesitation while just cruising at speed. You'll be cruising along and it will just for a split second skip a beat. It never does this under hard acceleration only while cruising at a steady speed.
The only other thing it will do is hesitate a slight bit under sudden acceleration. For example, sitting still at a light and then hitting the throttle to clear traffic. It will hesitate for a second and then dart off. Occasionally it will pop out the intake.
I was thinking timing, so I checked it again. It's set to 6' BTDC which I've been told good for these trucks. Is that too high? It idles find and there is no noticeable ping under hard acceleration. Of course it's a loud truck so its possible I'm just not hearing it.
Not related to this, but pretty much everything under the hood was replaced shortly after buying the truck. New distributor, coil, wires, plugs, injectors and O2 sensors.
Any thoughts?
The only other thing it will do is hesitate a slight bit under sudden acceleration. For example, sitting still at a light and then hitting the throttle to clear traffic. It will hesitate for a second and then dart off. Occasionally it will pop out the intake.
I was thinking timing, so I checked it again. It's set to 6' BTDC which I've been told good for these trucks. Is that too high? It idles find and there is no noticeable ping under hard acceleration. Of course it's a loud truck so its possible I'm just not hearing it.
Not related to this, but pretty much everything under the hood was replaced shortly after buying the truck. New distributor, coil, wires, plugs, injectors and O2 sensors.
Any thoughts?
