Performance of 100,000 miles

What engine is in the Mountaineer....Spark plugs are good for 100,000 miles....You run the risk of cross threading the plugs....Also if the coils are mounted on each plug....They are very fragile and expensive....I recommend the dealer perform this service.............

60,000 miles or 100,000 klms
sooner under adverse driving conditions or high speed driving

no
shock absorbers are an integral part of the safe driveability of the vehicle
shock absorbers with oil leaks are failed and should be replaced asap
suggest that you get firm with the dealer and demand that they be replaced if you have an extended warranty that covers the items
read the warranty as many extended warranties only cover engine and drive train and not what you have been lead to believe
which ever what happens the units need to be replaced
it is a strut type suspension it will also affect tyre wear

Brake should be flushed at 50,000 miles,coolant at 100,000 miles and transmission at 50,000 miles.

What is the problem?

215 isn't abnormal in hot weather &
with the A/C on or going up hills !

Blow out & hose out the condenser &
radiator

Thermostat correct,same writing on it as
original

New coolant,clean engine oil, like Mobil 1
full syn,flush power steering & add lubgard,
change transfer & rear diff lubes

Spark Spark Plugs every 3 years

Change front O2 Sensors at 100,000 miles

A/C not overcharged ?

Clean Air Filter?

Use CRC on MAF Sensor

The life span is usually about 100,000 miles. Could be more or less depending on the preventive maintenance performed.

Here is the basic maintenance list for your Jeep:

~ Inspect lights and check tire pressure at least monthly or before & after each trail ride

~ Oil & filter change, chassis lubrication, differential and transfer-case fluids every 3,000 to 5,000 miles or 3 to 4 months - if you have recently crossed through water deep enough to submerge the centre of your hubs, replace the differential fluids as a precaution

~ Underhood belt and hose inspection every 3,000 to 5,000 miles or 3 to 4 months (every oil change)

~ Tire rotation and wheel balancing every 6,000 miles or every other oil change - driving offroad can knock wheel weights off a wheel, so you may need to have this done more frequently

~ Brake inspection every 6,000 miles or every other oil change - if you have rum brakes in the rear, ensure they are cleaned after each trail ride where you encountered deep mud/snow

~ Replace air filter every 12,000 to 24,000 miles or as indicated by inspection - dusty trails can shorten these intervals dramatically

~ Replace fuel filter every 24,000 to 100,000 miles

~ Automatic transmission service every 24,000 to 100,000 miles

~ Wheel alignment check every 12,000 to 24,000 miles or as indicated by tire wear - offroad driving can knock wheels out of alignment, so budget for an alignment every 3 months, then watch tread wear to see if it's needed

~ Cooling system flush and refill every 40,000 to 100,000 miles

~ Belt and hose replacement every 60,000 to 100,000 miles or 5 to 8 years

~ Engine timing belt replacement every 60,000 to 100,000 miles (when equipped) or 5 to 8 years

~ Air conditioning performance check annually, usually in the spring - be sure to run your A/C during the winter for brief period to ensure all hoses and valves stay lubricated and operable

Ever 3,000 miles 1 Engine oil and filter 2 Lube suspension and u joint
Every 10,000 miles 1 Rotate wheels 2 Inspect for worn steering parts 3 Replace fuel filter 4 Replace air filter
Every 40,000 miles 1 Transmission oil, filter and boost valve 2 Transfer case 3 Front and Rear axle oil changed
Every 100,000 miles 1 Service ignition system. Spark plugs/ wires ECT 2 Service cooling system, Thermostat and coolant flush
Thank you for using fixya and replace any worn parts though out inspection during servicing

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Chevrolet Tahoe

the 100% for sure cause of this problem is the sending unit for the fuel guage, it is located in the gas tank. U may have to replace the fuel pump module to get the sending unit, as a rule they are one piece, if u have over 100,000 miles that is a good idea anyway.