I have a 1990 mighty max with the 2.4 4cyl engine. IT is in great shape except for a couple small things,
- Leaks oil from valve cover and into spark plug wells
- Starts up fine but after 2-3 seconds idle drop to barely running and then revs up to 3,000 rpm then back down again over and over until warm. Exhaust makes a putt putt sound during this.
- I can hear hissing coming from under the intake manifold, is this likely injector seals, manifold gaskets or what?
- Truck overheats up to 3/4 on the temp gauge but never past the white line into the red area.
any help you can lend is much appreciated. Thanks.