Wait Light On Dash Came On Several Times

[rlaird]

Had engine warming up running it at 1000 rpm, hooking up tow. Pulled out on highway and about 45 mph the [ DASH WAIT LIGHT] flickered and stopped when i reached 62 mph.

The light came on several more times on the trip home. Noticed that the 8.9 ISL 370 HP when flooring the peddle it did not have that kick it normally had, but it would run any speed that your pocket book would allow.

I am going to change fuel filters but could it be a ECM glitch?

Thanks

Robert Laird

[dickandlois]

When did the fuel filters get changed last? ECM's do not fail often and I have a feeling it is trying to tell you something, even though you are apparently not getting a check engine code.

Air filter was last changed, when ?

Rich.  

[rlaird]

Air filter changed 631 miles ago.

Fuel filters changed last September but didn't write milage down. I will change tomorrow.

I always keep three set on hand.

Thanks Rich for your reply

robert

[dickandlois]

Robert, I have been remiss - forgot that you might want to check the fuel lift pump pressure also.

Some engines are setup so you can attach the pressure gauge others are not and fuel pressure is important. When was the last time that was checked?

Rich. 

[jleamont]

Rlaird, when you turn the key on what lights do you have?

wait

warning

engine

?

[bm02tj]

I believe the wait light is to show the intake heater is on 

So cold intake or bad sensor 

Also with low power check hoses to and from intercooler 

[manholt]

If engine is post 2007, it could be the particulate filter!