Relatively sudden onset of bucking horse like horror from probably a throttel air valve or what?

DRUMMSKETCHER

MEMBER
1998 FORD RANGER
55,000 MILES

I got this fixed a year ago, within 3000 miles. It was scarry severe and I could not compensate with accelerator and clutch. Towed to repair shop and got overcharged. The frequency was like a bucking horse, and severity was total but I'd drive it home. It is back, bucking but gets a little warmed up and subsides so I can drive around the block to park it. I expect it, like last time, to get worse. The car starts OK, no smoke, no warning messages, 8 spark plugs, probably 4 cylinder engine, not automatic transmission, no Air conditioner. I have pulled and put back the clutch from a suzuki; Im not as car stupiid as
they come; the help files do not seem to cover this bucking at all.
I think I could swap the part out. What part?

1 Reply

CJ MEDEVAC

MECHANIC
11,005 POSTS

KINDA A HARD ONE?

DOES IT SEEM TO HAPPEN MORE WHILE CLUTCHING?

WHAT DID THEY SAY IT WAS LAST TIME?

MY DAD'S '76 F-150 DID IT A LOT IN REVERSE, HE SORTA LET IT GO FOR A WHILE.

AFTER IT PIZZED ME OFF ONE TIME, WHILE TRYING TO BACK UP TO A LOADING RAMP.

I INVESTIGATED IT THERE, AT THE RAMP

I HAD A FELLER EASE OUT ON THE CLUTCH, IN REVERSE, WHILE IT WAS AGAINST THE RUBBER BUMPERS ON THE RAMP

AMAZING THAT WE NEVER NOTICED THE ENGINE MOUNT WAS BROKE, AS IT WOULD FALL BACK INTO PLACE WHEN THE ENGINE WAS NOT TORQUING!

CHECK YOUR MOUNTS, ENGINE AND TRANSMISSION

I HOPE THIS IS YOUR PROBLEM, AND EZily WELDED BACK TOGETHER!

LET ME KNOW

THE MEDIC