Piston Slap: The Auto-Erratic Transmission?

Longtime TTAC commentator Mikey writes:

Sajeev,

I bought a 2014 Impala LT with a 2.5 four cylinder, and a 6 speed auto. I’m a 60 year old guy, that’s driven more cars than I can count. I’m still in awe that the engineers have figured out a way to move a car with the weight and size of the Impala with a 155 cu. in. engine. I love the car, with its comfort, and size, it suits my needs perfectly. I’m getting great gas mileage, with mostly city driving. Were flirting with 5 dollars a gallon up here. I’m willing to sacrifice power for economy.

I’m rarely on the highway these days. However I do find that at highway speeds{ 75 mph or so} the slightest touch of the gas pedal, will cause a down shift. The tach will jump from 2200 up to the high 3000’s in an instant. Does the 6 speed down shift sequentially, 6 to 5? Or will it go back 6 to 4th?

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  • VoGhost If you want this to succeed, enlarge the battery and make the vehicle in Spartanburg so you buyers get the $7,500 discount.
  • Jeff Look at the the 65 and 66 Pontiacs some of the most beautiful and well made Pontiacs. 66 Olds Toronado and 67 Cadillac Eldorado were beautiful as well. Mercury had some really nice looking cars during the 60s as well. The 69 thru 72 Grand Prix were nice along with the first generation of Monte Carlo 70 thru 72. Midsize GM cars were nice as well.The 69s were still good but the cheapening started in 68. Even the 70s GMs were good but fit and finish took a dive especially the interiors with more plastics and more shared interiors.
  • Proud2BUnion I typically recommend that no matter what make or model you purchase used, just assure that is HAS a prior salvage/rebuilt title. Best "Bang for your buck"!
  • Redapple2 jeffbut they dont want to ... their pick up is 4th behind ford/ram, Toyota. GM has the Best engineers in the world. More truck profit than the other 3. Silverado + Sierra+ Tahoe + Yukon sales = 2x ford total @ $15,000 profit per. Tons o $ to invest in the BEST truck. No. They make crap. Garbage. Evil gm Vampire
  • Rishabh Ive actually seen the one unit you mentioned, driving around in gurugram once. And thats why i got curious to know more about how many they sold. Seems like i saw the only one!