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Tune Up???


njnick88

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I just bought a 97 Seville STS with 65,000 miles. I took it for a drive and I don't think it's producing all the power that a 300HP Northstar should. Does anyone have experience with this or any suggestions.... is a tune up needed?

Thanks

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Make sure you are using premium gas

Check plugs and wires, air filter

Typically the plugs are good for 100K but we have seen the plugs lose their platinum pads. Bad dried out, arching wires will sap power also

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Any Diagnostic Trouble Codes (DTCs)?

See:

http://myweb.accessus.net/~090/toc.html#cad

Regards,

Warren

P.S. Welcome Aboard!

Posted Image

There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises

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Any Diagnostic Trouble Codes (DTCs)?

See:

http://myweb.accessus.net/~090/toc.html#cad

Regards,

Warren

P.S. Welcome Aboard!

I LOVE that site! It's helped me a bunch of times.

-Dusty-

- 02 Seville STS, white diamond

- 93 Sixty Special, Tan with vinyl top

- 79 Coupe DeVille, Tan with Tan top

- 06 GMC Sierra Z71, Black

- 92 Silverado C1500, black and grey

- 83 Chevy K10 Silverado, Black and Grey

b80385550.jpg

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Any Diagnostic Trouble Codes (DTCs)?

See:

http://myweb.accessus.net/~090/toc.html#cad

Regards,

Warren

P.S. Welcome Aboard!

I LOVE that site! It's helped me a bunch of times.

Yep, and he has just PILES of other non-Cadillac useful information.

I'd like to meet that man one day. The same goes for a few folk here. :)

Regards,

Warren

Posted Image

There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises

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Make sure you are using premium gas

Check plugs and wires, air filter

Typically the plugs are good for 100K but we have seen the plugs lose their platinum pads. Bad dried out, arching wires will sap power also

Before the Caddy I drove a 94 Impala SS with the 350 LT-1. That engine had less horsepower than the STS so I'd imagine I'd get better results from the STS. As of right now it feels a little doggish... nothing like the SS.

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You have a problem. The SS has nearly identical performance to about 45 mph but horsepower to weight tells from there to 80 mph or so, then above that it's hp to drag -- where the STS excels.

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-- Click Here for CaddyInfo page on "How To" Read Your OBD Codes
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Yes, I was Jims_97_ETC before I changed cars.

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