When should GMC Safari spark plugs be replaced?

Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on GMC’s recommendations.

What do I do if I see a pool of liquid under my GMC Safari?

Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.

What do hard starts and stops do to my Safari engine?

Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.

Where can I get a GMC Safari tune-up?

At your closest Firestone Complete Auto Care! Our experienced technicians offer GMC Safari service, maintenance, and repairs.

How frequently do the fuel injectors in my GMC Safari need to be cleaned?

The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.

Who performs GMC Safari tune-ups?

Visit your local Firestone Complete Auto Care for your GMC Safari tune-up. Make an appointment online and view our latest offers to save big.

1991 GMC Safari Tune-Up & Engine Service

Get a Tune-Up

Schedule GMC Safari Tune-Up

Tune in to tune up. Listen to your Safari and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

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Tune Into Your GMC Safari

Is your engine overdue for a tune-up? If you tend to ignore your car until something goes wrong, it could be time for a new way of doing things, particularly if you want to keep your 1991 GMC Safari in tip-top shape. Periodic tune-ups can bring more power back to your Safari’s engine. Tune-ups give your engine a boost in efficiency, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you follow the guidelines specified by GMC for your vehicle’s tune-up schedule, you invest in your Safari's long-term health and engine performance.

GMC Safari Engine Tune-Up Services

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 1991 GMC Safari. The first is the standard Firestone Tune-Up. This includes the installation of new spark plugs and a visual inspection of your engine’s components, plus a lifetime warranty on parts*. A second service option replaces the air and fuel filter in your Safari. Our third service is a thorough cleaning of the fuel system. During this type of tune-up, we use a three-step process to get rid of harmful varnish, dirt, and carbon deposit buildup in your Safari’s fuel injectors, throttle body, and throttle plate. This can improve your fuel system’s performance (and therefore, your engine’s performance). Here’s something to remember when choosing services: the mileage and service history of your Safari can determine what kind of service it needs. A one-size-fits-all engine tune-up procedure doesn’t necessarily exist. Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where Should I Go for My GMC Safari Tune-Up?

Schedule your next 1991 Safari engine tune-up service at Firestone Complete Auto Care. Not sure when you’re due for a tune-up? Use GMC’s recommended maintenance schedule as a reference point, or schedule an appointment ASAP if you notice any of these signs: decreased gas mileage, "rough" idling or stalling when stopped, knocking noises in the engine, or a lit up check engine light on your dashboard.

*Ask a Firestone Complete Auto Care teammate about full terms and conditions for warranties.

Common Engine Tune-Up Q&A For 1991 GMC Safaris

When should GMC Safari spark plugs be replaced? Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on GMC’s recommendations.
What do I do if I see a pool of liquid under my GMC Safari? Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.
What do hard starts and stops do to my Safari engine? Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.
Where can I get a GMC Safari tune-up? At your closest Firestone Complete Auto Care! Our experienced technicians offer GMC Safari service, maintenance, and repairs.
How frequently do the fuel injectors in my GMC Safari need to be cleaned? The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.
Who performs GMC Safari tune-ups? Visit your local Firestone Complete Auto Care for your GMC Safari tune-up. Make an appointment online and view our latest offers to save big.

Proactive Maintenance - 1991 GMC Safari

Stay ahead of any potential issues with your GMC Safari so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

1991 GMC Safari Repair

Your GMC Safari runs best when it’s well cared for. Make sure it’s always in tip-top shape with repairs from Firestone Complete Auto Care. Learn more about 1991 GMC Safari repairs below.