2.4 engine diagram - 1990 Toyota 4Runner

NO such thing as a single wiring diagram for the entire engine. Diagrams are PER system.
How to get car wiring diagram Ricks Free Auto Repair Advice

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Engine diagram will not allow you to see inside of your engine. The noise is likely a mecanical issue like a bad engine part that needs replacement.

Goggled "engine diagram 1987 on a mini winnabago" and found this:
Engine diagram 1987 on mini winnebago Google Search

https://www.google.com/search?q=Engine+diagram+1987+on+a+mini+winnebago&espv=2&biw=1396&bih=917&tbm=isch&tbo=u&source=univ&sa=X&ei=TN_1VKX2GvCHsQS6sYHgBA&ved=0CHAQ7Ak

Ggo to the search site and see more info.

either go on line internet look up engine wire diagram or buy a gm factory manuals they not cheap cost $198.00 or let dealership look up your engine wiring diagram.

I did not find a single page for an engine diagram but this link should provide a serious of images of engine diagrams for a 1997 LaSabre

You forgot to list the size of the engine in this 1999 Plymouth voyager.
This van came with a few types of engines. for example this van may have a 2.4, 3.0, 3.3 or a 3.8 engine.

I will try to enclose all these engines with the belt route diagrams. hope this is helpful. i will label the engine size for each diagram to help you locate your engine. the diagram for the 3.3 and 3.8 are the same diagram. GOOD DAY.

Here is the firing order diagram for that engine and vehicle.

Fig. 11: Emission system component layout and vacuum diagram-1987 22R-E engine




Fig. 12: Emission system component layout and vacuum diagram-1987 22R-TE engine



Fig. 13: Emission system component layout and vacuum diagram-1987 22R engine (Federal and Canada)



Fig. 14: Emission system component layout and vacuum diagram-1987 22R engine (California)

Hope helps with this (remember comment and rated this).

The belt diagram for a 2007 sebring sedan, this car can come with 3 size engines, the 2.4 or the 2.7 or the 3.5, here are diagrams of all the engines. ive labeled which diagram for the engine you use the correct one depending on your engine size, hope this helps.