Why is the coolant light on my Nissan dashboard on?

Pay attention to the temperature gauge and lights on your dashboard. If a low coolant warning light comes on or your dashboard temperature gauge keeps rising, it’s likely that your engine is about to overheat (and could leave you stranded on the road). Wait for the engine to cool down, then have your coolant system checked immediately at your nearest Firestone Complete Auto Care.

What are the puddles in my driveway or garage floor?

Don’t ignore puddles on your driveway or garage floor. If you see a green, bright orange, or pink fluid puddling under your car (it might be sticky, too), it could be antifreeze that’s leaking out of the engine. Antifreeze has a sweet, attractive smell to cats and dogs (and it’s highly toxic to them), so look out for your pets! Repair any leaks as soon as possible, then carefully wash away any remaining fluid that’s left behind on the driveway or garage floor.

Can Nissan D21 radiators be cleaned?

It could be a good idea to have your Nissan D21 radiator cleaned out a couple of times a year, maybe at the same time as a tire rotation or oil change.

My D21 overheated! What can cause that?

Your Nissan D21 engine could overheat due to low coolant, a clogged radiator, a damaged water pump, a malfunctioning cooling fan, or a faulty thermostat.

What can cause a D21 radiator to make boiling or rumbling sounds?

There could be air pockets in your D21’s cooling system. You might also have a clogged radiator or faulty radiator cap (this last one is an easy fix!).

Is it bad to have rust on my D21 radiator?

Yes. Having rust in your Nissan D21 radiator can cause leaks, a reduction in cooling efficiency, and even radiator failure. If rust is left untreated, it can corrode the radiator's cooling passages, causing small cracks or holes that can significantly impact the radiator's ability to function. To help prevent rust from becoming a major issue, it's important to properly maintain your radiator system.

1990 Nissan D21 Radiator Repair & Service

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Schedule Nissan D21 Radiator Service

Are rising engine temperatures causing rising stress levels for you? Cool it! Schedule your 1990 Nissan D21 radiator service or repair today.

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When to Service Your 1990 Nissan D21 Cooling System

Not sure what a radiator does? That makes it difficult to know when to have your Nissan D21 radiator serviced, but you need to know the signs of radiator malfunction. Your radiator is part of the cooling system. It helps regulate engine temperature. So, what happens when the radiator isn’t working quite like it should? You guessed it – your engine overheats, and it may even break down completely.

Staying on top of routine radiator maintenance for your 1990 Nissan D21 is essential for long-term engine health. Nissan recommends that you replace coolant (also called antifreeze) at certain intervals, but it’s a good idea to keep your eyes open for any indication that your radiator is failing. You could be on the verge of a radiator-induced engine breakdown if you notice a low coolant light or higher-than-normal engine temperatures on your dashboard, or if you spot coolant leaks coming from your car. As soon as you see one of these symptoms, come to your nearest Firestone Complete Auto Care for a Courtesy Check.

Nissan D21 Coolant Fluid Exchange

What happens during a radiator repair service? If you bring your vehicle to Firestone Complete Auto Care, we start with a comprehensive inspection of your Nissan D21’s cooling system. We then do a machine-powered radiator exchange, replenish flushed chemicals, sealants, and lubricants, and then pressure check for leaks.

If your radiator is acting up, odds are good that your water pump needs to be checked for proper function, too. The water pump is one part on your 1990 Nissan D21 engine that needs to be addressed ASAP once an issue is identified. This pump ensures that coolant is always flowing through the radiator, hoses, and engine. If it isn’t functioning properly, your engine won’t be able to stay within its optimal temperature range. Our technicians can take a look at your radiator’s components to help make sure everything is in working order. From the radiator cap to the heater core, we’re here to give your 1990 Nissan D21 the top-notch service it needs. After all, we know it’s not just a car. It’s your car.

Common Nissan D21 Radiator Questions

Take care of your 1990 Nissan D21 radiator and it will last. Check out our top questions and answers about Nissan radiators below, and visit your nearest Firestone Complete Auto Care at the first sign of an overheating engine.

Why is the coolant light on my Nissan dashboard on? Pay attention to the temperature gauge and lights on your dashboard. If a low coolant warning light comes on or your dashboard temperature gauge keeps rising, it’s likely that your engine is about to overheat (and could leave you stranded on the road). Wait for the engine to cool down, then have your coolant system checked immediately at your nearest Firestone Complete Auto Care.
What are the puddles in my driveway or garage floor? Don’t ignore puddles on your driveway or garage floor. If you see a green, bright orange, or pink fluid puddling under your car (it might be sticky, too), it could be antifreeze that’s leaking out of the engine. Antifreeze has a sweet, attractive smell to cats and dogs (and it’s highly toxic to them), so look out for your pets! Repair any leaks as soon as possible, then carefully wash away any remaining fluid that’s left behind on the driveway or garage floor.
Can Nissan D21 radiators be cleaned? It could be a good idea to have your Nissan D21 radiator cleaned out a couple of times a year, maybe at the same time as a tire rotation or oil change.
My D21 overheated! What can cause that? Your Nissan D21 engine could overheat due to low coolant, a clogged radiator, a damaged water pump, a malfunctioning cooling fan, or a faulty thermostat.
What can cause a D21 radiator to make boiling or rumbling sounds? There could be air pockets in your D21’s cooling system. You might also have a clogged radiator or faulty radiator cap (this last one is an easy fix!).
Is it bad to have rust on my D21 radiator? Yes. Having rust in your Nissan D21 radiator can cause leaks, a reduction in cooling efficiency, and even radiator failure. If rust is left untreated, it can corrode the radiator's cooling passages, causing small cracks or holes that can significantly impact the radiator's ability to function. To help prevent rust from becoming a major issue, it's important to properly maintain your radiator system.