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Downshifting sound... #369106 Jan 9, 12:03am Jan 9, 12:03am
Joined: Oct 2004
Posts: 266
Long Beach, California
2004 Silver Toyota Celica
crespo_h69 OP
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2004 Toyota Celica
crespo_h69 OP
2004 Silver Toyota Celica
Member
2004 Toyota Celica

Joined: Oct 2004
Posts: 266
Long Beach, California
Downshifting sound...
I have an Auto GTS so I can only downshift, when the ECU thinks I should, when I downshift on the highest RPM I can, to save brakes, there is sometimes this weird noise coming from the engine (not engine braking/reving). It's weird because I can feel only after a few seconds of doenshifting on the brake pedal, the pedal sort of vibrates, everytime it does it, I keep thinking my brakes are going to go off and I'll crash or something, by the way I haven't done anything to my car, still stock and it still has warranty


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Re: Downshifting sound... [Re: crespo_h69] #369107 Jan 9, 12:21am Jan 9, 12:21am
Joined: Jan 2004
Posts: 1,230
Massachusetts
FloydianSlip6
Specialist
2002 Toyota Celica
FloydianSlip6
Specialist
2002 Toyota Celica

Joined: Jan 2004
Posts: 1,230
Massachusetts
not sure i understand what you mean, you're tapping your brakes to make it downshift is that what you mean? Or you're using the 1 2 shift selections on the auto trany?

Re: Downshifting sound... [Re: FloydianSlip6] #369108 Jan 9, 12:23am Jan 9, 12:23am
Joined: Oct 2004
Posts: 266
Long Beach, California
2004 Silver Toyota Celica
crespo_h69 OP
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2004 Toyota Celica
crespo_h69 OP
2004 Silver Toyota Celica
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2004 Toyota Celica

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Long Beach, California
Imagine I'm at 4th gear and am coming to a red light so I shift to 3rd when the car let's me (I have an auto) if I shift down at the highest RPM the car will let me shift down from the brake pedal will sometimes start to vibrate and the engine will make this weird sound that scares me, lol


In the future you don't spank the monkey, the monkey spanks you!
Re: Downshifting sound... [Re: crespo_h69] #369109 Jan 9, 12:31am Jan 9, 12:31am
Joined: Jan 2004
Posts: 1,230
Massachusetts
FloydianSlip6
Specialist
2002 Toyota Celica
FloydianSlip6
Specialist
2002 Toyota Celica

Joined: Jan 2004
Posts: 1,230
Massachusetts
hmmmmm well the only thing I can imagine is that your ECU is kind of trying to get your engine to "REV match" of sorts, before the tranny gets you into "3rd gear" because you were at high RPMs. Know what I mean? That's prolly what you're hearing.

Re: Downshifting sound... [Re: FloydianSlip6] #369110 Jan 9, 9:42am Jan 9, 9:42am
Joined: Jan 2004
Posts: 1,612
St.George, UT
eric_h
2low2slow
2002 Toyota Celica GT
eric_h
2low2slow
2002 Toyota Celica GT

Joined: Jan 2004
Posts: 1,612
St.George, UT
u sure its not just engine vibration, and im guessing you have sportshift too right?


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Re: Downshifting sound... [Re: eric_h] #369111 Jan 9, 2:55pm Jan 9, 2:55pm
Joined: Oct 2004
Posts: 266
Long Beach, California
2004 Silver Toyota Celica
crespo_h69 OP
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2004 Toyota Celica
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Joined: Oct 2004
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Long Beach, California
^^ should the engine bibrating really affect my brake pedal? I don't know if it's affecting my acceleration since I never have my foot there when I'm breaking, yeah I do have sportshift


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