Mighty Max hard to start!

DROPPEDMIGHTYMAX

MEMBER
MITSUBISHI

I have a 91 mighty max with 190k miles. 2.4L mitsu, rwd. I just baught this truck off of a friend for 400 bucks. He had the same problems with it, but didnt do anything to try and fix it.

I have a hell of a time starting this truck when its been sitting for more than 6 hours. When it's running, it works just fine and is fast as hell. It has after market headers and larger diameter down pipe with no converter or tip. I end up having to push start it 3 or 4 times to get it started. Im thinging that its just a simple timming issue, maybe retarded? I have no idea how to find top dead center of either compression or exhuast. Otherwise I would check myself. I dont think I can adjust the distributer cap. The fuel pump seloniod also clicks every so often. When it does I get a great power loss but never really dies. I think it is the fuel pump seloniod, I could be wrong. Its a gold looking component behind the kick panel of the passanger side.

2 Replies

DROPPEDMIGHTYMAX

MEMBER
2 POSTS

Ok, I was in a rush to post this. Im getting spark and gas inside the block. No problems with the fuel system or ignition.

Could it be bad sencors keeping it hard to start? Or could it be a timming issue. Ive heard both of these could cause it. But how do I fix the timming or even check it. How do I know if its top dead center of either combustion or exhuast stroke?

This weekend im going to replace some of the sencores, like the o2, temp, mass airflow.

Somebody please send a link to help me learn about timming and how to fix.

I also need to know if this truck was suppossed to have a air sensor on the exhuast side. When I baught the truck it was straight piped.