91 GT fox overheating

Jim925

Member
Aug 27, 2018
62
2
8
Ithaca ny
New 91 GT 5.0 motor with 97 explorer intake and plenum, headers get red hot and valve covers real hot to the touch in less then a min idle, timing set, vacuum good, not sure if I'm missing a step, have the factoryTB, and egr plugs in back of heads, EGR still on TB, coolant line from TB to intake has no spot to go, not sure if that's my problem or not?
 
  • Sponsors (?)


TB coolant line won't make a difference here. This doesn't sounds like a typical water temp overheating issue.

It really sounds like you are very lean. Is your firing order correct? have you pulled plugs to make sure all plugs are firing? Inspect the plugs to see if they look white hot?
 
This pic is plug from back left of motor, #8 plug I belive
 

Attachments

  • 1535562769912804947178.jpg
    1535562769912804947178.jpg
    106.5 KB · Views: 105
This is the first step in resolving your issue ( stock copper core plugs) make sure your timing is 10-12° and check for codes, there is a thread on checking codes in the 5.0 tech/how to forums, likely not any one thing is going to work.