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Thread: Belta Heating up indication

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    Exclamation Belta Heating up indication

    Hi,

    I have bought a 1000cc 2008 Toyota Belta 2 weeks ago. It had been going fine during my day to day travelling and even performed well on a trip to faisalabad. However tonight when I took it out about 10 minutes in to the drive the red heat up blinking indication came up on the dash. It stopped after 10 seconds but returned after 5 minutes and continued to blink for 20-30 seconds and then stopped again. This has since been going on. I have checked the radiator and it has sufficient water in it. Can some one advise regarding this?


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    First make sure coolant is topped up. Start the car and check pipes for leaking coolant.

    Check radiator fins to make sure they are not blocked with dirt. The fins need to be clean to allow air to pass through the radiator. If the radiator fins are blocked, use a hose to spray water on the fins. DO NOT USE HIGH PRESSURE, IT CAN BEND THE RADIATOR FINS.

    Start the car hold the upper radiator hose after a few minutes and check to see if it becomes hot. If it is not becoming hot that means, thermostat is not opening and it is stuck in closed position. Replace thermostat.

    If the upper radiator hose becomes hot it means, water is flowing into the radiator. Keep the car running until you can see the automatic fan turn on. If the radiator fan does not turn on and the overheating indicator appears on the dash, then probably the fan switch or the fan is faulty or there is air in the system. To bleed air from the system. Turn off the car and let it cool down. Open the radiator cap. Start the car. If there is air in the system, air bubbles will appear from the radiator opening. Leave the cap open until you see no more bubbles appearing. Then close the cap and keep the engine running. wait for the automatic radiator fan to come on. If the fan still does not come on, either the fan switch or the fan itself is faulty.

    You can check the fan by removing its switch and connecting it directly to the battery, if it comes on, the fan is good, the switch is bad. The switch is set to activate the fan when the coolant reaches the right temperature.

    Sometimes, the fan comes on, but it does not run on full speed, this can result in insufficient cooling. The cause of this is worn fan motor. in this case, the motor needs to be replaced.

    Hope this helps
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    diagnostic very nicely explained by whiteangel

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    Quote Originally Posted by whiteangel View Post
    First make sure coolant is topped up. Start the car and check pipes for leaking coolant.

    Check radiator fins to make sure they are not blocked with dirt. The fins need to be clean to allow air to pass through the radiator. If the radiator fins are blocked, use a hose to spray water on the fins. DO NOT USE HIGH PRESSURE, IT CAN BEND THE RADIATOR FINS.

    Start the car hold the upper radiator hose after a few minutes and check to see if it becomes hot. If it is not becoming hot that means, thermostat is not opening and it is stuck in closed position. Replace thermostat.

    If the upper radiator hose becomes hot it means, water is flowing into the radiator. Keep the car running until you can see the automatic fan turn on. If the radiator fan does not turn on and the overheating indicator appears on the dash, then probably the fan switch or the fan is faulty or there is air in the system. To bleed air from the system. Turn off the car and let it cool down. Open the radiator cap. Start the car. If there is air in the system, air bubbles will appear from the radiator opening. Leave the cap open until you see no more bubbles appearing. Then close the cap and keep the engine running. wait for the automatic radiator fan to come on. If the fan still does not come on, either the fan switch or the fan itself is faulty.

    You can check the fan by removing its switch and connecting it directly to the battery, if it comes on, the fan is good, the switch is bad. The switch is set to activate the fan when the coolant reaches the right temperature.

    Sometimes, the fan comes on, but it does not run on full speed, this can result in insufficient cooling. The cause of this is worn fan motor. in this case, the motor needs to be replaced.

    Hope this helps

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