Just got a 94 turbo, Few concerns

[phaux]

I picked up a 94 tubo 4x4 supercab a few weeks ago with 264,000 miles on it. The guy I purchased it from said it had a rod knock as it started making a knocking noise about two months ago. I have been told on these motors the injectors are prone to go out and can cause a knocking noise. Is there any way to test to see if it's the injectors? Other than changing out all the fluids is there anything else I should do/check?

thanx

[Mr_Roboto]

Yes you can check the injectors. With the engine running, crack open the injector line nuts (5/8" wrench) on top of the injectors one at a time. When the knock goes away you have located the cylinder.

Now here's the thing, this will take away the knock whether it's a loose rod bearing or a bad injector. You need to swap the injector for a known good one to see if the knock follows the injector or not.

Personally I would buy a new set of injectors and an injector install kit before moving around injectors. The reason is that once you take off the fuel return caps to move the injectors, the O-rings will leak fuel.

It's a leap of faith to buy new parts, but a faulty injecotr is much more likely than a bad rod bearing.