2.5L - 1st gen 4-banging
The Barbie truck has low compression in cylinder 3.
I bought an "A" code head a while back on Ebay that was totally rebuilt for $200. Cheap!
Anyway, I wasn't sure that the work on it was legit, so I took it apart.
I wish I had taken some pix, but I didn't have a camera, and my phone blows...