Engine shakes at first crank
 

suspected the motor mounts so had them changed. No noticeable difference. Tech says very common with 4.0 engine due to heavy torque. Only shakes at startup then runs fine at all speeds.
Any suggestions? Ranger is still under extended warranty so I'll keep bringing it in this they get it right!

Re: Engine shakes at first crank
 

Starter loose?

Re: Engine shakes at first crank
 

I've had the same concern on my '11 Ranger 4.0 since I've owned it (3 years) and never have found a problem. I was thinking Motor Mounts too but now that I read you replaced yours and it didn't make a difference, I'm going to assume that it's just normal..

Re: Engine shakes at first crank
 

that's basically what the tech said....common on the 4.0 Rangers.
Thanks

Re: Engine shakes at first crank
 

The older OHV had a torque strut above the front right tire that minimized that effect. Personally I've not looked at any newer SOHC engines to see if they are equally equipped but the 3rd Gens had them.

Its about 9" long and mounted vertically between the frame and engine architecture from under the Power steering pump bracket. It also helps in controlling torque under load instead of letting the engine twist in its mounts some or tearing them.

I can post a pic when I can later on the matter but if its bad it may be the lead to a small issue.

Re: Engine shakes at first crank
 

FWIW, my '04 does this, very briefly, as the engine is first
cranked, and quits as soon as the engine fires. It seems like overadvanced ignition timing for a split second, until the computer
figures out where #1 cylinder is, just before it starts the firing order.
My truck has done this since I have owned it. I can't figure out why
Ford didn't "iron out" this behavior with different computer programming, (if that's the problem). I never saw/knew of any 3.0 v-6 that acted like this.