Why is water level in radiator dropping after each trip to/from work and boiling too fast after change of head gasket? The engine overheated when i was driving along the highway. The car , a toyota chaser 98, had an overhaul 1 piston was changed, head gasket was replaced and retorqued later, head was faced. At first it was ok and the mechanics even took it for a test drive. After retorquing thats when i started noticing the overflow tank getting full above the max and the coolant bubbling. Oil dipstick shows no milky colour. Radiator was flushed. There are no obvious leakages. When i started the engine with the rad cap off this morning the water quickly overflowed. The thermostat was removed (mechanic said its unnecessary in hot climate). I now fear the problem is with the head gasket. Dont know if the radiator cap will give similar signs)

15

Asked by Jan 11, 2013 at 04:43 AM about the 1998 Toyota Chaser

Question type: Maintenance & Repair

17 Answers

16,255

Haha, "thermostat not rewuired for hot climate". You drive a fuel injected vehicle, it needs to get to operating temperature to get the most mpg's and run the cleanest. Did the mechanic get you new head bolts when the head hasket was replaced? Why was it retourqued after a drive? There is a torque spec and procedure and none say drive the vehicle then torque to ??ft/lbs. I dont know what engine you have but toyota likes to use aluminum heads which are sensitive to jead bolt torque and typically use torque-to- yeild head bolts which arnt reuseable and shouldnt be touched after tightened especially when hot. How quickly does it overflow? Slow rise out of radiator or shoots out fast?

If your mechanic said the thermostat is "unnecessary in hot climate" you need another mechanic he is an idiot and/or just lied to get you away from him

16,255

I was just thinking the same thing lol. Does head gasket, gets cheap on thermostat. Most likely he is an old school mechanic, it worked on carburated engines. Once fuel injection came around that wasnt the case anymore and the engines need to get to operating temperature. Also in some cases the thermostat restricts the flow so the coolant doesnt flow so fast it never cools in the radiator, sounds stupid but it happens.

101,795

One of my cars was doing the same. I found that the coolant lines going to the throttle body were stopped up. (Someone had put stop leak in radiator) Big mistake. After replacing lines and flushing out the throttle body the problem went away. Not sure if this will apply to your car tho.

That right there dandy is why I hate anything that claims to "fix it in a can"..there is no magic formula to fix anything that you pour out of a bottle

Also Andrew that does not sound stupid at all..it makes perfect sense and I have known that for a long time ....by self made mistake(s)..the coolant does not stay in the radiator long enough to cool just as you said

5,250

Put he correct thermostat back in it and allso make sure the radiator cap is good. Radiator caps are pressure sensative

90,095

Bubbles in the coolant reservoir indicate a blown head gasket. The mechanic took the thermostat out to lower the temperature and hide the fact that they screwed up the job.

5,250

Bring to another machanic and have a pressure test ran on it. Also is there white smoke comeing out of the exghust?

1 out of 1 people think this is helpful.
5,250

Wonder if your machanic put the head gasket in the right side up?

I agree with tenspeed on the bubbles in the tank and the radiator boiling like that. It indicates pressure from the combustion chamber(s) going in to the cooling system from a head gasket blown out again ..or..like Ronc said, the gasket was put on wrong side up which will do the same thing. Then you can consider things like a warped head, you mentioned it was "faced" which if not done properly by an experienced, competent machinist will ruin the head

15

Thanks guys for the responses. I went to another mechanic who deals mainly with the cooling system and discovered that there were multiple issues at work, radiator cap was defective, radiator was not flushed properly (i could see thick black stuff coming out when he flushed it) , bubbles in the system contributed inefficient cooling. Dont know but his explanation made sense. Afterwards there was a dramatic change, engine's running smooth. There's no bubbling or overflowing. In a nutshell the 1st mechanic did a shoddy job, having promised to be thorough.@andrew initially it was a slow rise @ronc258 there was no white smoke @davidh25 the head was faced by a renowned company which specializes in that, it underwent pressure test and was said to be ok. I was getting chills 'cause im planning to sell the car this month. Lesson learnt: at least have an idea about a car problem before parting with cash. Will tell the mechanic to put the thermostat back.

15

@Tenspeed your explanation is scary, you mean it's more like sweeping dirt under the rag? I pray there wont be big problems later.

If there are no bubbles now that second mechanic did the trick..he is far more competent than your first one..I wouldn't worry about it cchisango, if the gasket was upside down or blown out it would still be boiling bubbles, one thing I don't understand in what you wrote is "contributed inefficient cooling"..the air will keep it from cooling properly, right? do I understand that? And do that: get the thermostat back. It's a necessary component

PS don't pay the dude a dime to put it back

after how much time Toyota crola 95 needs coolant??? means for example after 200km or 400km etc because i drove my car like 400km in one month and it finished all the coolant inside i just checked it last night

16,255

Your coolant should never just go away. It's suggested to change it around every 3-5 years. But if it's disappearing it's either burning it or leaking it. Both are bad.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • WHY IS THE COOLANT KEEP COMING BACK THROUGH THE BOTTLE 52 answers

    I had a problem with my 1995 Toyota Camry. every 3 days I have to put coolant in the radiator so I take it to the shop and the said it need head gasket. I gave them the job to fix it I change radiator...

    1995 Toyota Camry LE

    -

    Maintenance & Repair

  • Car using way too much coolant 42 answers

    Hey guys, well my celica recently started having issues. My car started over heating and loosing coolant, I took it to a mechanic and he determined it was a bad head gasket. So I got it repair an...

    2001 Toyota Celica GT

    -

    Maintenance & Repair

  • Did I really have a leaking head gasket? 2 answers

    I took my toyota to a dealer to replace a leaking water pump. The repair was recommended by a higher priced Toyota dealer. After the repair, the dealer said I had a leaking head gasket when no one el...

    1991 Toyota Hilux

    -

    Maintenance & Repair

  • High RPM and smoke after head gasket replaced 21 answers

    Hi, I have a 1995 Toyota Celica (1.8L - 108 cu in) with 250,000 miles. I recently replaced head gasket, valve seals, timing belt, throttle body, water pump and etc. I reseated the valves and there is ...

    1996 Toyota Celica ST Hatchback

    -

    Maintenance & Repair

  • Coolant resevior gurgling. Blown head gasket? 74 answers

    Bought a 1998 Plymouth Breeze 2.4 from an auction for $500. on the drive home it started missing so I replaced the coil, plugs, and wires. A few days later I noticed the coolant resevior was bubbling ...

    1998 Plymouth Breeze 4 Dr STD Sedan

    -

    Maintenance & Repair

Chaser

Looking for a Used Chaser in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

ZIP:

Search Toyota Chaser Questions

Toyota Chaser Experts

#1 tconway
tconway
Reputation 430
#2 Sam Kappo Capozzalo
Sam Kappo Capozzalo
Reputation 90
#3 Mason Cassel
Mason Cassel
Reputation 70
View All