Took my eleantra to ford for a 45,000 mile tune up, they told me the battery was no good. I never had an issue startingiit

ok all cars ran before we all know that ,what matters is only NOW and tomorrow.
the starter is dead that is the only real clue.
my sisters ranger had manual transmission does yours>?
dead or dim head lamps and wipers and blinkers dead. mean you just lost all 12vdc power, yes that hammer trick ive done for 50yeaer and is right.
radios use about 1/10 th the power of brake or blinker
blinks are 1amp, radio is 0.1amps or even less. so the radio will in fact run on a near dead, battery, even 10vdc *****.
the starter uses 3000 more power to crank and engine 300 amps
so the battery is dead. (or caused by bad alternator and you ignored the cluster charger lamp>?
here are all causes (not guess a test for each to prove it)
1; BATTERY DEAD.
2: ALTERNATOR DEAD CAUSES #1
3: JUMPER CABLE JUMP STARTS WORK (AAA TOW TRUCK DID IT?) or buy a battery charger and charge up the battery or barrow one good from 2nd good car. the battery swap trick.
4: NOT ABOVE. (ORDER MATERS) I then shift from PARK to Neutral and engine magically cranks, bad PNDRL switch.
5: bad starter relay. (if starter dead but relay is silent took, bingo relay or #4 caused)
6: stick shift gear box truck, clutch pedal switch bad, acting just like #4, and for the exact same reason bad switch.


if stranded, Not told
#4 is first. omg I'd driving home the users guide even tells starter cranks fast in NEUTRAL too, foot on brake.

Bad gas, bad idle air control, dirty throttle body and plate, fuel filter, animal nest in air filter .

how is it handling on take up speed ? any juddering or ab-normal pulsing in speed.

Do you have a check engine light blinking when this problem occurs? I assume you do because if it is missing and sputtering like you say the engine control computer would detect that and turn on the check engine light. Next step is to have the systems fault codes read through the diagnostic port under the dash in front of the driver, Autozone and others does this test for free.

The dealer has no intentions to help you,as you found out

That is all too common with dealers & unfortunately repair shop do just what the dealer did,put a scan tool on the vehicle, no codes,off you go

That is not how you diagnose a car
You listen to the customer & then keep the vehicle
a few days & drive it at least 20 miles or more to have the
issues return,then go back to the shop & find & resolve them

They most likely never drive it at all or very far or took the scanner
along to record data

Dealer have for over 70 years told customers they never heard of
things. If you went into the service bay & asked a couple of techs
I bet they have heard of many problems

Keep in mind your drive a Mazada Powertrain not a Ford,they own
about 20% of mazda for the last 30 plus years

If you bought it at that dealer,tell them you want to keep it,after they
fix it for free.

Sounds like idle control or steering sensor issues

I usually service Ford family Brands and will try to assist you. Back in 1995 there was a change to longer service life sparkplugs and the elimination of Distributors with Crankshaft sensor firing of the plugs. It really depends on the Manufacturers' idea of when to replace sparkplugs by mileage and the various filters on the engine.

You can install plugs and filters anytime you want; just a matter of prematurely spending money on something you do not need. Air filters 12,000 miles, Sparkplugs 50,000 to 100,000 miles, Serpetine Fan Belt 40,000 to 45,000 miles, Fuel filter 25,000 to 45,000 miles.

Check with Autozone, Advance, or Oreilys for information about Manufacturers specs. Stay on an oil change interval based on your driving habits. Sometimes oil breaks down without higher miles and you need to change by date rather than by use. Clean oil for Winter starts, clean oil for Summer driving. Twice a year is adequate for low mileage. Watch your Antifreeze, it chemically changes after 3 years and loses corrosion inhibitors.

I hope at least some of my suggestions are useful to you.

You need to tune your car up. New air and gas filters.Put some new plugs and wires on the car. Check the tread and psi in your tires. Then you will get allot better gas mpg. Hope this helps!

ever tuned it up? sounds like its due. plugs, wires, fuel filter (if equipped), PCV, and an intake system cleaning should restore your fuel economy to where you want it.

Yes it needs tuning and chenge of sprk plugs and wiring.

there are many items that will cause your truck not to be clean
when you spark get weak it will not burn all the fuel and not set a code so a good ign tune up pluga and plug wires and related parts and a good injector cleaner. then you need to take it out for a long drive to clean out the system. i have seen many cars not pass just because of alot of idle time.
you didnt say how many miles are on this jeep or how long since a tune up?
later paul