Poor performance

[Dare2Dream]

You're better off making a new thread about your specific problem and make the title more informative. But before you do that, it is best to search the forum for past threads.

I don't know what might be causing your problem, i also use circle K and have never had any problems. The manual recommends 87 octane but higher shouldn't hurt.

It is recommended to get the transmission flush with filter change atleast once every 30K. Some recommend changing the fluid every 15K and filter every 30K. I recently got the full BG machine flush and tranny filter change for $160 at a local shop. Just call around to find a good deal.

[Moncha]

Done

[Anita]

Sirco,

Is it bucking when it up and downshifts? If it is happening then, it might be your Mode switch. Search on "mode switch" or check this thread for some info:

http://www.vehicross.info/forums/sho...ht=mode+switch

[mbeach]

I got bad gas (water infiltration) many years ago at a Circle K in El Paso.
I've also had problems with the 'oxygenated' summer gas sold in the southwest.

Could it just be bad gas?

Oh, don't waste your money on the high octane stuff. Just get your gasoline from reputable gas stations and you should be just fine.

[Maugan_VX]

also, "coughing" could be caused by a leaky Intake Manifold Gasket with a cold engine. After a couple of minutes running, the symptoms disappear.

Although I wouldn't call the symptom "bucking" its an easy problem to diagnose (not so easy to fix though)