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 Post subject: Delayed engagement?
PostPosted: Thu Dec 26, 2019 3:11 am 
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GXP Member
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Joined: Wed Oct 22, 2008 8:38 pm
Posts: 286
Year and Trim: 2002 Buick LeSabre
Hi guys, I can't find any codes but I get a delay when shifting from reverse to drive then it slams into gear. New fluid and filter awhile ago no change. I thought delayed engagement would throw a code and happens usually 2 to 3 or 3 to 4? Maybe more likely the TCC circuit or reverse servo? About 230k on it now. Any ideas?


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 Post subject: Re: Delayed engagement?
PostPosted: Sun Dec 29, 2019 3:46 am 
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SLE Member
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Joined: Sat Oct 28, 2017 10:00 pm
Posts: 86
Year and Trim: 2003 Pontiac Bonneville SSEI
It's likely you will require a complete rebuild with that many miles on it, but my first guess would be your torque converter is going out. The 2nd gear clutches in mine were completely burned and I wasn't even having that issue...trans guy said if my diff hadn't come apart it probably would have completely burned up within the next 5k anyway....I had 130,xxx miles on it and it's never been raced etc.

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 Post subject: Re: Delayed engagement?
PostPosted: Thu Jan 02, 2020 2:15 am 
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Joined: Wed Oct 22, 2008 8:38 pm
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Year and Trim: 2002 Buick LeSabre
Probably will try a few things like solenoids or a manual shift setup where you can adjust line pressure. Nothing to lose, I could always use those on another 3800 vehicle or 4t trans.


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 Post subject: Re: Delayed engagement?
PostPosted: Fri Jan 03, 2020 9:45 am 
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Certified Bonneville Nut
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Joined: Mon May 10, 2010 6:11 pm
Posts: 9154
Location: Chicago, IL
Year and Trim: 2003 SLE
I had this problem, and it always seems to show up if I get the trans really really hot for an occasion or two.

I got a transmission cooler for the car, along with the engine fans being tuned to 180* with the corresponding thermostat. Add a quart, or more at this point probably, of Lucas Stop Slip and it rarely happens to me anymore.

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"Penelope" - 2003 SLE - 201k Miles
"Sydney" - 2000 Honda S2000 - 70k miles
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 Post subject: Re: Delayed engagement?
PostPosted: Sun Jan 05, 2020 4:18 am 
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GXP Member
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Joined: Wed Oct 22, 2008 8:38 pm
Posts: 286
Year and Trim: 2002 Buick LeSabre
Nice. I might try Lucas or something similar. It still happens when cold but not so much when it gets freezing temps. Seems somewhere it's not getting pressure and the cold holds the fluid viscosity higher..


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 Post subject: Re: Delayed engagement?
PostPosted: Tue Jan 07, 2020 4:46 pm 
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Certified Bonneville Nut
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Joined: Mon May 10, 2010 6:11 pm
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Location: Chicago, IL
Year and Trim: 2003 SLE
If it does happen to me, I always notice it happens in the 40-50 degree range for some odd reason.

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"Penelope" - 2003 SLE - 201k Miles
"Sydney" - 2000 Honda S2000 - 70k miles
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