1100 Joyner Trooper Speed over 30 MPH

[DONALD1968]

Why can’t I get my 1100 Joyner trooper to do anymore than 30 mph?

[Dan B]

Not enough info to even begin to tell you where to look.  What is the engine RPM when you're traveling 30 mph?  Is the engine running smoothly or acting like it's cutting out, missing or struggling?

[DONALD1968]

I unplugged the crank sensor an it still ran I don’t know how but it didn’t change the engine at all

[DONALD1968]

It runs smoothly it tops out at 30 in fifth gear an starts poping through exhaust 

[Dan B]

I'm still guessing here.  Since the crankshaft position sensor didn't change anything, that could be the issue.  A bad sensor though would cause rough idle, slow engine resonse when you press on the accelerator, difficulty starting.    Engine starving from lack of fuel caused by a clogged fuel filter; low fuel pressure (should be about 50 psi) or bad throttle body.  A compression test might be of value.  Low compresson on all cylinders could indicate a jumped valve timing belt.  Not likely but it will eliminate one doubt.  3000 RPMs at 30 mph is normal; higher RPMs is not.

[DONALD1968]

3000 rpm is 30 mph then it starts cutting out

[Dan B]

I'm leaning toward lack of fuel.  The engine is needing more fuel that what is being delivered.  Could be fuel pump, filter or the ECM isn't recognizing the demand for fuel from the throttle body.  Other than that, I'm sorry that my skill level is short of what I've suggested.  Good luck on fixing your machine.

[California Nut case]

I have a 2008 trooper t2 1100. I changed out the starter and now it will not do the 3 second warm up and start. Are their any shops in California that will still diagnose a Joyner Trooper, or does anybody know which signals can cause the warm up sequence to not go?

[Dave Ramm]

Donald 1968: Did you finally get your issue fixed on your trooper? If so what was the final fix?

California Nut Case: Did you ever find anyone to work on your Joyner, and if not what part of Cali are you in? I am a retired auto mechanic and live 30 minutes from Carson City Nv.  I bought my trooper because it is an automotive powertrain and I know I can fix it, modifying to use more common parts (ie Honda) when I need to. If you are fairly close I may be able to help.

[Harold e]

don what was the problem with your 30 mp I got the same only dont back fire