Rep Power: 0

I took my car to the shop, they bled my radiator out of the air bubbles. Replaced my cap too. Car stopped overheating for like a day or so now it's going back up. My thermostat was changed. It's leaking antifreeze somewhere because car is blowing out cold or lukewarm air. Someone help?

 
Rep Power: 0

2002 Honda Civic ex

 
Rep Power: 210

find the coolant leak and fix it....however a blown head gasket is most likely the root of your problem

 
Rep Power: 211

If it's leaking then low coolant level can cause an overheat. Overheats can cause a breached headgasket. The shop you brought it to should have performed a coolant system pressure test to find leaks. You can rent (free) a coolant system pressure tester from Autozone or O'Rielly's. The problem is those testers have universal fittings and don't always fit radiator or reservoir openings correctly and subsequently do not hold pressure properly.

Other possibilties for overheating include:
Radiator fan not coming on
Waterpump failing/failed
Thermostat stuck in closed position
Radiator blockage
Air in coolant

Did the shop mention the thermostat as a possibilty? How long does it take the engine to overheat from a cold start?

 
Rep Power: 134

My vote would be another damn 1.7L headgasket is toast. May as well do the timing belt service at he same time.

 
Rep Power: 0

I had the pressure test done twice different times and they said it wasn’t my head gasket

 
Rep Power: 0

i had the pressure test done twice for the head gasket and both times said it wasn’t jeadgaskey

 
Rep Power: 0

usually takes a bit. I’ll be driving for like 10-15 minutes then it will start

 
Rep Power: 211

Pressure test doesn't rule out a headgasket breach. There are several types/locations of breaches. A leakdown test is the gold standard.

 
Rep Power: 211

Bring it to a better mechanic.
A cheap place to start is thermostat replacement if you want to DIY.
Any leaking near the waterpump?

 
Rep Power: 0

i already replaces the thermostat. And i don’t know where water pump is lol

 
Rep Power: 0

where would it leak if it were a head gasket?

 
Rep Power: 211

A leak down test involves pushing air into the cylinders. Spark plugs are removed, attachment to a compressor that's screwed into the spark plug threads. If the head gasket is breached (blown) the forced air from the compressor will show up as bubbles in the radiator during the test.

The most telling symptom of head gasket issue is if there is no external coolant leaks but, there is coolant loss. Typically there will be coolant loss in the radiator combines with coolant gain or overflow in the reservoir.

Sometimes internal coolant loss (coolant getting into cylinders through a headgasket breach or crack in engine block or cylinder head) will show up as white smoke emitting the tailpipe/exhaust. Typically, is most evident on first start-up of engine.

Another possibly symptom of a head gasket breach is the car's interior heater works sporadically or not at all.

Are you checking (when engine is cold) the radiator daily for coolant loss?
Checking the reservoir level?

If it were mine I would rent (free) a Block Tester from O'Reilly's or Autozone, purchase blue test fluid $10. If the blue test fluid turns yellow or green exhaust gases are entering coolant system via head gasket leak.
A block test is only accurate if coolant is positive for emission gases and blue fluid turns colors. If test fluid remains blue there still could be a headgasket leak: http://www.agcoauto.com/content/news/p2_articleid/200
Video below: