power loss slowly on m1009

[dskchevy]

Help... loss of power feels like fuel prob. because trans shifts good no sliping..
I have changed air & fuel filter. feels like pluged injector or fuel line after pump.
can I take out injector out & turn over eng & tell if pluged????

Thanks Doug

 

[acmunro]

If you have good fuel without any air to the injector pump, I would check the Injector Pump return line check valve. It is located on top of the Injector pump and has a rubber line with a clamp. Remove the rubber hose, unscrew the check valve. Look up inside the check valve. The check ball is clear so you should be able to see through it in bright light. If it is dirty your injector pump is probably failing. You can clean it and try it. You may get some more life out of it. but best not to run it in that condition. This is an easy check it should only take about 5 minutes.

 

[dskchevy]

THANKS Acmunro,
That will get me started......... This is my first 6.2 I like the mpg, But with no spark plugs I feel lost.........

 

[dskchevy]

I Looked at check ball it's clean.............I jumped on I-20 drove about 10 miles 55 top speed.............. got home it shut down at idle........... Anyone have any ideas?????

 

[mutt1966]

Ihad a check valve that wasent dirty but it was stil stuck when I pushed on it took 3 or 4 shots of carb cleaner and a blasts from the air hose till it loosend up, just a thought. Scott out

 

[dskchevy]

Thanks Scott.........I'm running out to try that.........

 

[dskchevy]

Ok, check ball not stuck.....stumbles at idle, when you give it a little fuel it acts like turbo lag & then takes off?????????? (sitting in park in garage)

 

[dskchevy]

Ok, how about this........ yank out the 6.2 & drop in a gas eng

Is the the trans a chevy bolt pattern.... Or like buick,pont,olds,caddy bolt pattern

 

[acmunro]

Its the chevy pattern, but I would try to make the diesel work. I would check the return line to the tank. If it was blocked it would cause problems like the return check valve. Is the volume and fuel pressure ok to the injector pump ?