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 Patter around 40-50 mph

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joshuadalegrimes
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PostSubject: Patter around 40-50 mph   Patter around 40-50 mph EmptyWed Jul 03, 2013 3:25 pm

So I just bought a SWEET 97 Riviera last week and the only real problem besides the stock radio dying the day after I bought it is every now and then when I am accelerating onto the highway there seems to be a little pattering of the transmission but this only happens briefly and less than 10 mph range, could that be sparks? Or should I go in and get my whole transmission looked at? Any help and advice would be greatly appreciated!

Very new to Riviera Life and LOVIN it! Thanks
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PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph EmptyWed Jul 03, 2013 3:36 pm

Cant help you but welcome!
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joshuadalegrimes
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PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph EmptyWed Jul 03, 2013 4:24 pm

any codes or ses light on?
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PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph EmptySat Jul 06, 2013 6:43 pm

no codes or lights
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Sir Psycho Sexy
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PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph EmptySat Jul 06, 2013 6:49 pm

Welcome! Have you done anything to the car yer or do you know who you bought it from? Depending on the miles, my first course of action would be a full tune up (air filter, fuel filter, plugs, wires, seafoam, oil change).
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PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph EmptySat Jul 06, 2013 8:27 pm

97RiverBoat wrote:
So I just bought a SWEET 97 Riviera last week and the only real problem besides the stock radio dying the day after I bought it is every now and then when I am accelerating onto the highway there seems to be a little pattering of the transmission but this only happens briefly and less than 10 mph range, could that be sparks? Or should I go in and get my whole transmission looked at? Any help and advice would be greatly appreciated!

Very new to Riviera Life and LOVIN it! Thanks

My guess is ignitionrelated.

Youbneed to catch up on the mmaintenance.

You need to make sure your coils are correct; the SC and NA engines have coils that can be interchanged but are not really interchangeable, the NA coils are weaker. If your plug wires are electrically leaky that could be a cause. If you have an sc enging and you are running regular gas that could ba an issue too. By all means check transmission fluid etc but i doubt its your issue. -
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bmcd9179
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PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph EmptyTue Nov 19, 2013 10:23 am

Mine did the same thing, 2 of my spark plugs were completely shot, and my wires were the original from factory, I got both spark plugs and wires, then cleaned the adapter they went to with a file, after that my car ran 100% better, good luck!
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PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph EmptyTue Nov 19, 2013 7:15 pm

I'd replace the spark plug wires as a first step. Recommend using AC Delco or Packard Delphi (OEM). Good luck!

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
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Patter around 40-50 mph Empty
PostSubject: Re: Patter around 40-50 mph   Patter around 40-50 mph Empty

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