HEATING ISSUE?? I'm totally lost
 

ok im having this issue, i live in socal so temps are getting hotter, everything has been running smooth until recently... now my stock gauge keeps reading hot after very little driving, it has a new radiator, new water pump, new temp send unit, new fan clutch, and its full of 50/50 idk what to do cus im on the freeway for maybe 15-20 min and all of a sudden it shoot ups, any help would be appreciated

specs

1989 Rx7 GXL Everything is stock

Could be air in the system, have you burped the system?

Is the thermostat new also? Do you have a undertray?

no undertray :( anyone got one for sale???

its hard to find one, and undertray helps ALOT.

i made one in about 30 minutes until i can figure out how im going to makeone out of aluminum.

i took a 20$ sheet of lexan from home depot, 4 L brackets from stanlys hardware and a aluminum support bracket.

2 will mount to the oil cooler bracket, 2 to the bolts on the sides of the inner wall.

Ok well I have a temporary undertray until I can find a proper one, but my car is still getting kinda hot about 230 farenheit at one point, at least that's what the gauge reads, (installed an aftermarket gauge)