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Brakes engaged downhill?

Tiny
JCJONES210TX
  • MEMBER
  • 2004 HONDA PILOT
  • 3.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Most of the problems seem to have gone away after replacing alternator but I have some shifting issues still but not as bad I need to test that neutral safety switch again and see if it still comes out bad between pin 2 and 7 in drive my main issue now is that if I'm going down a fairly big hill it seems like the brakes are engaging automatically I don't know if its transmission or ABS or what. Help please, thank you.it still relates to my last thread i believe but if anyone else wants back info you can find that here https://www.2carpros.com/questions/neutral-safety-switch-72763346
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Tuesday, July 9th, 2024 AT 12:47 PM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
An easy way to tell if the brakes are causing it or the transmission/drivetrain is to put the car in neutral while going down the hill to see if anything changes, if not then the brakes are to blame. Please run this test so we can go in the right direction for fixing it.
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Tuesday, July 9th, 2024 AT 4:26 PM
Tiny
JCJONES210TX
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So, it does not do it in neutral.
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Tuesday, July 9th, 2024 AT 8:25 PM
Tiny
KEN L
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So, it sounds like the transmission is to blame, can you please upload a short video of the problem so I can see? Also, let's run the codes to see if any are stored.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

I have seen the input shaft sensor start to go out and cause this kind of issue FYI.

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Thursday, July 11th, 2024 AT 10:14 AM
Tiny
JCJONES210TX
  • MEMBER
  • 10 POSTS
I will work on a video, but no codes come up maint req light is on other than that nothing a video I think will be hard to distinguish it’s more something you feel rather than see because it’s not drastic and there are still some shifting issues.
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Thursday, July 11th, 2024 AT 2:17 PM
Tiny
KEN L
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I wanted to see how severe the problem was, it might be normal, all cars slow down when in the gear and the accelerator is let off.
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Friday, July 12th, 2024 AT 9:12 AM

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