Loss of acceleration suddenly

Tiny
LISA WINTERBOTTOM
  • MEMBER
  • 1991 CADILLAC DEVILLE
  • 4.2L
  • V8
  • 2WD
  • AUTOMATIC
  • 164,000 MILES
Last night driving home in the rain I had a series of decreases in speed and could feel it in the gas pedal then it would go away then start again. I pulled into the local CHP parking lot and had to leave it as it was dark and didn’t know what was wrong. Engine sounded fine when parked. When the deceleration was happening the car was loud like it was revving then it would stop.
Tuesday, December 18th, 2018 AT 9:07 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi and thanks for using 2CarPros.

Based on your description, the engine would rev and then you experienced a loss of power, sounds like the transmission was slipping. First, check the transmission fluid to confirm it is clean and full. Transmission fluid should be a pinkish color, not brown or black. Also, smell it to determine if it has a burnt smell.

Here is a link that discusses possible issues with transmissions.

https://www.2carpros.com/articles/automatic-transmission-problems

Start there and let me know what you find.

Joe
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Wednesday, December 19th, 2018 AT 7:04 PM
Tiny
LISA WINTERBOTTOM
  • MEMBER
  • 3 POSTS
Thank you Joe. I have the car at the shop I will tell my mechanic. Thank you so much.
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Wednesday, December 19th, 2018 AT 7:12 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Happy to help.

Let me know if you have other questions.

Take care and have a nice Christmas.

Joe
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Wednesday, December 19th, 2018 AT 7:53 PM
Tiny
LISA WINTERBOTTOM
  • MEMBER
  • 3 POSTS
Thank you and Merry Christmas to you! Can I always ask for you if I have a problem again?
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Wednesday, December 19th, 2018 AT 7:54 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Lisa:

I wish that was possible because I love helping people that appreciate it, but as questions come in, they are viewed by a few of us. I'm on every night, so I answer a lot of them, but others do too. Honestly, the people here are all really good at what they do.

I hope to hear from you again.

Take care,

Joe
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Wednesday, December 19th, 2018 AT 8:05 PM

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