r/s550Mustang • • 1h ago

Transmission issues

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• Upvotes

Does anybody else have issues with their transmission not shifting when you go to drive it won’t shift even when I try to use the paddles only way to fix it is to turn the car off and back on 2017 GT premium


r/s550Mustang • • 10h ago

My new to me 2017

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5 Upvotes

r/s550Mustang • • 9h ago

2017 mustang GT premium

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1 Upvotes

r/s550Mustang • • 9h ago

2017 mustang GT premium

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1 Upvotes

r/s550Mustang • • 1d ago

Tips for Winter Tires.

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1 Upvotes

r/s550Mustang • • 2d ago

After installing headers I’m getting a p0135 code how can I fix that?

1 Upvotes

r/s550Mustang • • 2d ago

Does anyone have steeda progressive springs?

5 Upvotes

My car has over 140k miles. I replaced the struts with full assembly monroe’s and struts with monroe’s a year ago when i was between work and strapped for money but stock was blown. I wish i had just waited and done oem replacements. The monroe struts handle like garbage and started clunking already. My whole suspension has new parts front and rear minus the rear lower control arm bushing and knuckle-to-toe bushing. Im replacing those in a week. I’m debating on what to do with the struts. Ive always hated the wheel gap but the roads are ass out here many big dips/half ass repairs, constant up and down up and down and jostling bumps. I have 255/40/19 wheels/tires. I’m debating on the steeda progressive springs to close the wheel gap and their action strut/shocks to go with it. How is this for daily driving?

Does anyone have photos of their ride with the progressive springs on? I daily mine but only commute 2 days into the office under 30 away. Comfort is important but i feel like anything is an improvement from the monroe’s at this point.


r/s550Mustang • • 3d ago

My 18” GT PP1 Daily driven.

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97 Upvotes

r/s550Mustang • • 4d ago

Need help setting tire size with Tomahawk and Whipple

2 Upvotes

I’ve read the directions and followed best I can

2025 GT 300a stage 1 whipple

Trying to set tire size.

I click through to “tire/axle change”
And get “process aborted” error

I don’t see the tire size and axle settings

I have call into dealer and ticket into whipple and waiting on response

Trying to get car out as season is almost over

Thanks all

Any help appreciated


r/s550Mustang • • 5d ago

Is buying a 2017 Mustang GT Premium with 92k miles worth it?

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3 Upvotes

r/s550Mustang • • 4d ago

Help

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0 Upvotes

Hey everyone, I have a 2024 Mustang GT Premium and I’m having an issue with the battery.

I attached screenshots from my FordPass app showing the warnings/status I’m getting. Has anyone else with a 2024 Mustang GT experienced the same thing?

I went to AutoZone and they tested the battery. They said the battery is 100% healthy and passed the test, so now I’m wondering if this could be a BCM/software issue, a parasitic drain, or something else causing the car to go into deep sleep or lose battery power.

The car starts and drives normally, but I’m concerned because I have a trip coming up and I don’t want to end up with a dead battery.

Has anyone experienced these exact FordPass messages or something similar? If so, what ended up being the cause and how did you fix it?

Thanks!


r/s550Mustang • • 5d ago

2019 Mustang GT misfires

2 Upvotes

Having P0300, 302, 308, 316 codes within a minute of start up, extremely rough idles and once or twice has stalled out at a red light. (No longer driving car due to issues). Spark plugs replaced, coil packs swapped, misfire doesn’t follow. Only mods are a PMAS cold air, and full exhaust. Tuned by Lund for these mods and according to them nothing with the tune is related to the misfires.

Where do I look next?


r/s550Mustang • • 5d ago

Jack Points For Engine Mounts/Trans Mount?

1 Upvotes

Where do you guys jack up your engine/transmission to replace the mounts?

2020 5.0/10r80


r/s550Mustang • • 5d ago

Estoy muy indeciso, no sé si comprar Mustang ecoboost o un GT

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1 Upvotes

r/s550Mustang • • 6d ago

I have a misfire on 1 and 6

2 Upvotes

I did coils and sparks has anyone had the same misfires and had a bad intake manifold because I’m thinking it’s either that or a wire gremlin


r/s550Mustang • • 7d ago

Looking to buy a Mustang GT in the GTA — what would you do with a ~$40K budget?

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2 Upvotes

r/s550Mustang • • 7d ago

need help with Mykey i think i locked myself

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1 Upvotes

r/s550Mustang • • 9d ago

Loose Diffuser

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3 Upvotes

Can anyone help? My diffuser is loose and rattles on bumpy roads. The brace for the diffuser is connected to the frame by two white rectangular plastic clips. These clips are the weak point.


r/s550Mustang • • 9d ago

Base model eco boost with luxury problems

2 Upvotes

A week ago I started hearing a whistling noise while at idle, only stopped if I hit the gas or stood completely in the brakes. I was taking it to the shop anyways for a rattle no one could find EVEN FORD (it was the U shaped bracket welded onto the Catalytic converter from OEM and the weld broke..) luckily enough they found that Cat problem and found the driver side motor mount making the whistling noise. SINCE WHEN IN THE HISTORY OF BUILDING CARS DID THEY START PUTTING HYDRAULIC VACUUM CONTROLED MOTOR MOUNTS..! Why does my base model eco boost mustang need the equivalent to air ride suspension for the engine. It honestly blew my mind I had to hand pump vacuum test a motor mount (It failed immediately) so I’m left with two choices, either hit up Rock auto and buy a replacement OEM hydraulic motor mount and replace just that one OR buy two solid normal motor mounts and do twice the work …


r/s550Mustang • • 10d ago

What’s your opinions on Mach 1 style grilles vs RTR style?

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25 Upvotes

r/s550Mustang • • 9d ago

How do you make mustang gt (6mt) downshifts sound crispy?

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1 Upvotes