FAQ: Hesitation, Stutter(Studder), Shudder, Stumbling, on Acceleration/Load

I've decided to go with a transmission with 98k miles on it from a 99 Riviera for a little more money.
'll look it over and see how things look before installation. Hopefully it is in good shape! I've started a list of things to get off the car and I'll include your suggestions. The car it is coming from looks to be in better shape than the other one so hopefully it means they took better care of it

I plan on installing a shift kit, 4th gear clutch hub repair kit https://tripleedgeperformance.com/online-store/ols/products/4t65e-4th-clutch-hub-repair-kit along with a new PCS solenoid. Is it worth replacing anything else while I'm in there? TCC solenoid?

Looking for driver door AC gasket if you find a wrecked driver door I need it

https://i.servimg.com/u/f60/19/94/24/58/driver10.jpg

albertj wrote:

... what you can do:

- get a fresh replacement set of OE wires. I think RockAuto.com will ship to you, check out their site. The Delphi or ACDelco wires are decent and will last you several years. if you want better go to http//www.magnecor.com and get a set of Magnecor wires, or to Summit Racing and get Taylor "Spiro-Pro" wires. I do not know if the Taylors will last as long as the Magnecors.
- get a complete set of coils for your car. A set of the coils intended for the supercharged cars will work whether car is supercharged or not. But set should not mix the SC and nonSC coils. You have a '96 series II. Cheapest way to do this new might be the OEM 5192 coils at about US$19.00 only each. They are copper in epoxy, should be fine. Also someone reading this may have a good set of coils taken off a SC car or can get to a junkyard - a set taken off an SC car would be 100% fine to use.

Finally - and this is just a hunch - check the wire harness connector at the firewall for breaks in the wires near where the terminals are crimped onto each wire, and same at the ignition module (the flat piece under the coils).

Albertj

Hi Albert.
I wondered if you could give me your opinion on these coils listed on eBay?

https://www.ebay.com/itm/271923568811?epid=1140571950&hash=item3f4fe860ab:g:lekAAOSwGl5bUIWU&amdata=enc%3AAQAHAAAAkF30LTXndvKXJBM39e53LXF6WoEq%2Bkwvny1RjQRx%2Ft3fo4QppGQ5scU7NT5fX15za2d4DqLWrzyNK1YFECdIbBcjX2j%2FRNtK0cxCqmuBTvB3Kbyl0GudQX7Ea9YgUEpxNwdlP80EVrnlyN4lAUHsEgHtwNLvlDBP3iwRKdCrtp%2FHIf8TH8jiYP%2F%2FB7FzLRxRmQ%3D%3D%7Ctkp%3ABk9SR-CQupLjYA

I have a source for OEM 5192 coils, but they are more expensive.

BTW, I had a shop look at my cruise issue and they said the stalk is dead. Getting a replacement soon.

Thanks in advance,
Sean

No. I'd get the D576 Delcos for the SC Riv. Why not get a set of junkyard coils from a 3800 SC engine, while you can?

I am pretty sure you dont want the 5192's, either. They are for the NA engines.

really, just get on car-part.com or your regional pick-n-pulls and get a set of used SC coils...

Albert,
If I have them pulled from another Riv, do you know what the resistance numbers are to check them for statically?

denim wrote:

Albert,
If I have them pulled from another Riv, do you know what the resistance numbers are to check them for statically?

I don't recall offhand, but I think it's only a couple ohms. I also think it's buried in the specs somewhere in the service manual. In an old post about coils I may have listed it, I dimly recall this topic coming up about a decade ago.

Albert