Won't go > 2000 rpm

planbrad · Post by **planbrad** » Mon Dec 11, 2017 6:43 pm

Help!

Yesterday Deloris started choking and now she won't go more than 2000 rpm. Engine seems to be running smooth but no pick-up-and-go. VERY sluggish. Still moves up through the gear as it gains speed. But no umph/jam when you hit the gas.

Has anyone had a similar issue?

Thanks
Brad

fozzie · Post by **fozzie** » Mon Dec 11, 2017 9:59 pm

What does the exhaust look like? Does it stutter at all? Like a fuel problem?

Post by **Growlerbearnz** » Tue Dec 12, 2017 12:04 pm

Is this petrol or diesel? On a diesel it might be the boost line going to the injection pump- if that comes off or splits it'll act like a non-turbo engine (though I'd expect it to still rev past 2000rpm, eventually). Symptoms would include a new hissing noise from under the bonnet at high revs, and more black smoke out the exhaust than usual.

I'm guessing it starts and idles just fine.

pajerry · Post by **pajerry** » Tue Dec 12, 2017 8:29 pm

Also check the Throttle Position Sensor.

Lots of posts, easy to tune up, makes a huge difference how the vehicle shifts. I do mine yearly as it starts to waver.