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  #1 (permalink)  
Old 07 Sep 2003, 05:23 pm
John
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Default Big jerk when shifting from park to reverse

1988 integra auto shift 90,000miles:
When the engine is cold, say overnight, when I shift the gear form
Park to Reverse, there is a very big jerk(in fact the whole car jerk).
The same thing happens when I shift from D to R and R to D backforth.

But this "sharp jerk" is a lot less serious when the car is warm.

I was thinking if this is due to transmission fluid being low,when the
car was not driven overnight, the fluid levels drops down and some of
the gears are not coated with fluid. Any ideas?


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  #2 (permalink)  
Old 07 Sep 2003, 06:24 pm
Curtis Newton
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Default Re: Big jerk when shifting from park to reverse

On Sun, 07 Sep 2003 22:23:46 GMT, John <john@nomorenewspamin.ca>
wrote:

>1988 integra auto shift 90,000miles:
>When the engine is cold, say overnight, when I shift the gear form
>Park to Reverse, there is a very big jerk(in fact the whole car jerk).
>The same thing happens when I shift from D to R and R to D backforth.
>
>But this "sharp jerk" is a lot less serious when the car is warm.
>
>I was thinking if this is due to transmission fluid being low,when the
>car was not driven overnight, the fluid levels drops down and some of
>the gears are not coated with fluid. Any ideas?
>



When was the last time you have replaced the auto fluid?

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  #3 (permalink)  
Old 08 Sep 2003, 04:53 pm
C. Eastwood
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Default Re: Big jerk when shifting from park to reverse

You're too hard on yourself.


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  #4 (permalink)  
Old 18 Sep 2003, 09:27 pm
vinniemak
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Default Re: Big jerk when shifting from park to reverse

Hi, John:

Have you checked the transmission fluid level when cold?? If it is below
the bottom mark, try adding a little to bring it up to the top mark. It
should help.

V.M
==========
"John" <john@nomorenewspamin.ca> wrote in message
news:rovnlvs9tbase4pt9891h8201q441v9qtk@4ax.com...
> On Mon, 08 Sep 2003 02:56:07 GMT, "Dave M." <gadget@frontiernet.net>
> wrote:
>
> The cold idle speed is around 2000 rpm and it gets lower as it warms
> to 400 rpm. Thanks
>
> >Have you checked the cold idle speed?
> >
> >
> >John <john@nomorenewspamin.ca> wrote in message
> >news:mknnlv89vhmidv8ehl9jettcli8qkurr22@4ax.com.. .
> >> On Sun, 07 Sep 2003 23:24:15 GMT, Curtis Newton
> >> <cnewton@remove-me.akamail.com> wrote:
> >>
> >> >On Sun, 07 Sep 2003 22:23:46 GMT, John <john@nomorenewspamin.ca>
> >> >wrote:
> >> >
> >> >>1988 integra auto shift 90,000miles:
> >> >>When the engine is cold, say overnight, when I shift the gear form
> >> >>Park to Reverse, there is a very big jerk(in fact the whole car

jerk).
> >> >>The same thing happens when I shift from D to R and R to D backforth.
> >> >>
> >> >>But this "sharp jerk" is a lot less serious when the car is warm.
> >> >>
> >> >>I was thinking if this is due to transmission fluid being low,when

the
> >> >>car was not driven overnight, the fluid levels drops down and some of
> >> >>the gears are not coated with fluid. Any ideas?
> >> >>
> >> >
> >> >
> >> >When was the last time you have replaced the auto fluid?
> >> >
> >>
> >> I replaced the fluid 2 years ago which really wasn't that long.
> >>
> >>

> >

>



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  #5 (permalink)  
Old 21 Sep 2003, 11:57 am
Dan-O
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Default Re: Big jerk when shifting from park to reverse

My first thought was worn-out tranny or engine mounts but after describing
the temperature issue I think maybe it's time for you to try some sort of
additive in the tranny fluid. Any repairs to this tranny are likely to be
bloody expensive.

"John" <john@nomorenewspamin.ca> wrote in message
news:8qbnlv8d74k9rqdlvcfh8sffiupp2e3i7f@4ax.com...
> 1988 integra auto shift 90,000miles:
> When the engine is cold, say overnight, when I shift the gear form
> Park to Reverse, there is a very big jerk(in fact the whole car jerk).
> The same thing happens when I shift from D to R and R to D backforth.
>
> But this "sharp jerk" is a lot less serious when the car is warm.



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  #6 (permalink)  
Old 19 Oct 2003, 04:21 am
Fellow Human
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Default Re: Big jerk when shifting from park to reverse

I think the cold idle speed is the issue. When you're shifting to reverse with the engine cold, you're
shifting with the engine at 2000 rpm, same as if you had your foot on the gas. Of course it will jerk. I have
the same symptoms as you, usually I wait until the revs go down to at least 1200, and then the jerking is
far less violent. It might need cold rpm adjustment. (Haven't looked into that over the past 6 or 7 years I
had the car...)

As for your tranny, welcome to the club. But to tell you the truth, I'm puzzled given you have such low
mileage. My tranny started slipping only now, with 220k on the clock. I changed tranny fluid and added
some cleaner/sealer substance (don't remember the name, something like Trans X or similar) as per
instructions on the bottle, then after 150 or so miles changed tranny fluid again and the issue improved
significantly, but did not go away entirely. Some say that Honda brand tranny fluid does magic - have not
tried that yet.
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