low idle when cold
#1
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low idle when cold
a few weeks ago my truck started to idle real low when it was cold, about 500 rpm, then it would be normal after a short ride. now its getting worse, it takes quite a while for it to go back to normal idling.
I run biodiesel and had a tankfull of not so great stuff so maybe that it to blame, but the truck is real smooth, even when idleing at 500rpm, it doesnt shake much. when I step down it responds fine and takes off with no problems. There is no definate miss like a bad injector either, unless they are all tired out which is a possability.
I am not sure what to think, just looking for some input. I am going to get a fuel filter after work today and see what that does. let me know if you have any comments.
Thanks
I run biodiesel and had a tankfull of not so great stuff so maybe that it to blame, but the truck is real smooth, even when idleing at 500rpm, it doesnt shake much. when I step down it responds fine and takes off with no problems. There is no definate miss like a bad injector either, unless they are all tired out which is a possability.
I am not sure what to think, just looking for some input. I am going to get a fuel filter after work today and see what that does. let me know if you have any comments.
Thanks
#3
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Location: Springfield, Ohio
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When I put 12 gallons of straight soy oil in the truck in my sig to top it off mine did the same thing bcause I didn't really drive it much because for four months of being off work it got really cold.
#5
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There are high idle throttle screw control that you can use or as in my Brother in laws case he used a solenoid and switch, flick the switch and you have preset high idle . the old school one is used in a lot of the older big rig trucks and farm trucks may want to try princess auto or some Ag place
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