Engine/Transmission (1994 - 1998) Starts hard Runs good

[B.Workman]

12 valve with 130,000 has a slow rugh idle on start up. Will not start below 60 degrees. Runs excelent when warm. Any idea whats wrong?

 

[crabman]

B. W. ,

Did this start all at once or just gradually?

Does it smoke upon start up? If so, what color? Light colored smoke and running rough upon start up is usually an air leak. Have you changed the rubber fuel lines? Rubber fuel lines can let air in but do not leak fuel all the time.

Also, check the fuel heater for air leaks. (at electrical connector)

Try above and post results.

crabman

 

[DieselMinded]

Intake Heater ?

 

[Joe G.]

What is your idle set at?

 

[B.Workman]

starts hard,runs good

I change the filter and cleaned the pre filter,it had some alumnium particles in it. Checked the lines,they looked good but I will replace them with marine grade lines. It still will not start at 60 degrees unless the heater is pluged in. This happened over a 6 month period.