Help, engine heating up under boost
 

help guys, my engine temp rises past half under boost, but when at idle at a stop light, or when parked its normal..
fill me in. im thinking head gasket,

oh yea my o2 sensor the wire melted off also..

Re:Help, engine heating up under boost
 

how much boost are you running?

Re:Help, engine heating up under boost
 

park your car and see if the fans are working. also, flush the radiator, replace the thermostat, and add a good brand coolant, prestone etc. i had the same problem cause my fan switch sensor was broken.

Re:Help, engine heating up under boost
 

if that does not help get some watter wetter by "redline" it helps keep my temps under contorll.

Re:Help, engine heating up under boost
 

i heard about that purple haze stuff that makes your engine run 50% cooler, but if u leave it in over winter your coolent will freeze and crack your block, so that ---- must work.

about the boost im running, 6-8 psi
i had the car parked and the fan comes on. but ide liketo take the thermostat out and leave it out so it runs cooler non stop. oh yea i also have a 91 civic 4 dr radiator in the car, it is 8 inches longar than the stock 91 civic hatch back radiator.. so more rad. more cooling power.

fill me in on your info..

Re:Help, engine heating up under boost
 

this heating up only happenes on the highway and sometimes in town under boost

Re:Help, engine heating up under boost
 

check your hoses any little leak WILL cause it to over heat when your on it hard.it wont hold pressure.

Re:Help, engine heating up under boost
 

Theirs no way the 4dr one is 8 inches longer,im almost positive their the same . I wouldn’t take the thermostat completely out but you could drill a few holes to help the flow out a little.
steve

Re:Help, engine heating up under boost
 

snake-oil mystery coolants aren't going to fix a problem that is physical. Run pure water in that bitch if you want to, it will work if your innitial problem is solved.

so...
-check for leaks
-hold head gasket under suspicion
-ensure you don't have a relay or fan motor going out on you