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  1. jayrw

    00 Gt Surging / Bucking Under Load. Easy To Demonstrate Symptom On Freeway.

    The confusing part (and reason I delayed my response) this bucking / surging symptom is worse on some days than others, The day I wrote my opening post it had the worst day yet but then the next day (I hadn't tried any troubleshooting steps yet!) it was actually difficult to make the car...
  2. jayrw

    00 Gt Surging / Bucking Under Load. Easy To Demonstrate Symptom On Freeway.

    wmburns thank you very much for the detailed response, It's been about a year since I checked the spark plugs (when the symptoms first started occuring) and the plug gaps were correct as well, the symptoms were very minor back then compared to how its behaving now (surging much more pronounced...
  3. jayrw

    00 Gt Surging / Bucking Under Load. Easy To Demonstrate Symptom On Freeway.

    Is there a common area to troubleshoot for surging or bucking under load? When I say surge/buck it feels like the engine is briefly losing power and then back to normal but this symptom is occuring 3-4 times per second under the right conditions. for example when on the freeway in 5th gear I...
  4. jayrw

    2000 Gt, Stumble Upon Acceleration Or Low Rpm After Warmup

    For the sake of completion figured I'd update my post, It ended up being a bad COP in cylinder #4. I pulled spark plugs and they looked normal (light tan color), Also checked fuel injector ohm readings with multimeter (hardly any variances noted) and finally checked ohms on coil packs (primary...
  5. jayrw

    2000 Gt, Stumble Upon Acceleration Or Low Rpm After Warmup

    Ok I did change plugs a few years ago (motorcraft),but guess it's worth checking them out just in case.
  6. jayrw

    2000 Gt, Stumble Upon Acceleration Or Low Rpm After Warmup

    No check engine light, I was thinking of buying a new coil and swapping out an old coil, test drive it, repeat until hopefully finding a bad one, unless there's an easier way to test them lol.
  7. jayrw

    2000 Gt, Stumble Upon Acceleration Or Low Rpm After Warmup

    Car runs great when its cold but after several minutes of driving it starts to have issues with taking off from a stop, the longer it idles the worse it starts to sound, when I accelerate from a stop it stumbles and hesitates a little until I get into higher rpms, if I rev up the engine a couple...
  8. jayrw

    00 Mustang Gt - Misfiring & Harder To Start Lately.

    New coil solved the issue! No more problems since replacing coil #2 yesterday :nice:
  9. jayrw

    00 Mustang Gt - Misfiring & Harder To Start Lately.

    Looks like I got a break in the case finally.. I was driving home last night and the check engine light came on for the first time, P0302 cylinder 2 misfire, hopefully its just a bad COP or fouled plug. Ill post an update after I get it resolved.
  10. jayrw

    00 Mustang Gt - Misfiring & Harder To Start Lately.

    I don't know if this helps with diagnoses but I notice when the car is cold (sitting overnight) it runs great for the first 5 minutes and then starts to randomly miss or sputter, to me it sounds like one of the spark plugs is partially fouled but not 100% sure, I dread having to remove those...
  11. jayrw

    00 Mustang Gt - Misfiring & Harder To Start Lately.

    No CEL or codes I scanned it earlier today. It seems like taking it on the freeway helped, the car is running a lot better than yesterday but I still feel a slight sputter or loss of power as I'm taking off from a stop but not always, also when the car is idling the rpms sometimes fluctuate...
  12. jayrw

    00 Mustang Gt - Misfiring & Harder To Start Lately.

    Lately when I start my car it has to turn over longer than usual (usually a few seconds, normally it would fire almost immediately). I'm also experiencing a loss of power or misfire, it feels like the car isnt running on all 8 cylinders but its random, when the car is idling you can tell it's...
  13. jayrw

    00 Mustang Gt - Brake Light On Dash Comes On While Driving?

    Well looks like I just needed to add a very small amount of fluid in the reservoir, the light hasn't come on since then. Thanks again.
  14. jayrw

    00 Mustang Gt - Brake Light On Dash Comes On While Driving?

    Thanks for the feedback I'll try adding a little fluid tomorrow and go from there, wouldn't be surprised if one of the pistons is acting up either i've been wanting to replace the front calipers.
  15. jayrw

    00 Mustang Gt - Brake Light On Dash Comes On While Driving?

    For the last couple weeks the brake light on dash will come on usually when I apply the brakes, even just a light press and other times it will come on while driving without pressing brakes, symptom seems to reduce after car warms up but doesn't completely go away. Brake pedal pressure feels...
  16. jayrw

    Drivetrain 2000 Mustang Gt - Strange Squeaking Sound Under Car As I'm Coming To A Stop And As I'm Taking Off.

    Oddly they said the noise was coming from the new transmission tailshaft seal they had put in, it had a longer sleeve on one end vs. the original seal and was rubbing on the yoke / driveline? sounds like they used the wrong part? It's no longer making noise and I haven't noticed any leaks so...
  17. jayrw

    Drivetrain 2000 Mustang Gt - Strange Squeaking Sound Under Car As I'm Coming To A Stop And As I'm Taking Off.

    I recently had my transmission repaired (T45 / broken shift fork) and although the car drives and shifts fine I'm hearing a new noise I've never heard before just 1 day after getting it out of the shop, as the car is coming to a stop I hear this strange constant squeak / squeal noise which also...
  18. jayrw

    2000 Mustang Gt - Wheel Bearing Noise Up Front, Can't Figure Out Which Side.

    Well I took my car to the shop this morning and turns out the front tires have minor cupping on the inner edges which was apparently the main source of noises & vibrations, when we initially took it for a test drive the tech thought it sounded like bad wheel bearings.. which is what everyone who...
  19. jayrw

    2000 Mustang Gt - Wheel Bearing Noise Up Front, Can't Figure Out Which Side.

    I checked the pads when I swapped out the wheel bearings last week, they all looked pretty healthy still and I didn't see any unusual pad wear, also cleaned both sides the rotors and didn't notice any obvious grooves / metal to metal symptoms. Hopefully they figure something out tomorrow when...
  20. jayrw

    2000 Mustang Gt - Wheel Bearing Noise Up Front, Can't Figure Out Which Side.

    Yea I think a new set of rotors is in my near future .. Is there any particular brand of rotor people tend to buy or avoid? There seems to be a lot of options in town when it comes to pepboys / napa / autozone / oreillys auto parts. Are the more expensive slotted / drilled rotors worth it?
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