DEAR CAR TALK: My brother-in-law, who thinks that I am mistaken if my aperture are moving, tells me that the affliction affair I can do to my automated manual is alpha the car and anon aback out of my garage. His acumen is that aback the agent is abating up, it’s active faster than usual. So aback my foot’s on the anchor and I put the car in reverse, wham, the slams up adjoin auto that won’t move. What do you say?
That’s far from the affliction affair you can do to your automated transmission, Rolf. Putting bananas in it instead of automated manual aqueous all-overs anon to mind.
Your annoying brother-in-law may accept had a point 30 or 40 years ago. In the old days, aback we had carburetors and automated chokes, you’d alpha up a algid car, and the agent would run at 2,500 rpm for the aboriginal bristles minutes. And sure, slamming the manual into accessory aback the agent was active that fast wasn’t absolutely TLC for a transmission.
But now that engines are computer-controlled, an agent that’s abating up will run at 1,000 rpm for 30 seconds, and afresh acknowledgment to 750 rpm. So whatever ache you put on the manual is basal to nonexistent.
Plus, you’re not activity to sit there for that 30 abnormal “straining” the transmission. Unless you accept a barn fetish, you’re activity to absolution the anchor and alpha abetment up.
So acquaint your brother-in-law that he’s wrong. That’s far from the affliction affair you can do to your transmission. Driving the car hard, abnormally accelerating acutely and suddenly, is worse for the transmission. And not alone the transmission, but all of the added drivetrain components. Everything except the radio knobs — they can handle adamantine acceleration.
So if you adjudge to canyon a debris barter and you cull out and put your bottom to the floor, and the manual downshifts three apparatus and your aback gets affianced to the seat, you’re abridgement the activity of your transmission, and the blow of your car, far added than you anytime could by putting it in about-face in your garage.
And here’s addition affair that’s worse than what your brother-in-law suggests: Abetment out of your driveway and application the manual to about-face admonition instead of endlessly first. And don’t balloon about apathy to change the manual aqueous aback the architect recommends. That generally leads to bananas (see above).
DEAR CAR TALK: My grandfathering has a ’97 Ford F-150 with 147,000 afar on it. Afterwards the check-engine ablaze came on, he took it to accept it scanned, and the browse apparatus said the upstream O2 sensor was bad. So he replaced it. Bristles afar or so afterwards he replaced it, the check-engine ablaze came on again. He got it arrested again, and the aforementioned cipher came up. So he replaced it again, and he still has the problem. Any abstraction what abroad to analysis that could accomplish this appear over and over again?
Well, two things appear to mind. One is that the oxygen sensor itself is not the problem. Maybe there’s a wire that bankrupt off a the sensor, and that’s why the computer thinks the O2 sensor is bad.
Modern car computers can analyze amid an electrical problem, like an accessible ambit from a burst wire, and the O2 sensor itself. But a 1997 F-150 ability not accept that talent. Next time a chump comes in with a ’97 F-150, I’ll breach one of his affairs and let you know.
Start by accomplishing what’s alleged a “continuity check” on the affairs that go to the O2 sensor. You’ll charge the base diagram. There should be three wires, and you’ll analysis anniversary one.
If they’re all good, and you’re accepting ability to the O2 sensor, afresh conceivably Gramps is affairs some bad O2 sensors, or conceivably alike the amiss sensors.
In that case, instead of activity aback to the genitalia abundance that scanned the truck, go to the Ford banker and buy a new O2 sensor from them. If that works, acutely the botheration was the backup sensors he was buying. If that doesn’t work, you can acknowledgment the sensor and accede a fire, Craig. Acceptable luck.
Write to Car Talk at its website at www.cartalk.com.
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