Shotgunning parts

[bluesman17]

Whenever its warm out, say 85+ my truck will get a hesitation that wont go away until about 15mph and until then its running like ***** chugging, occasional backfire. I think its the egr valve. Anyone agree or think it could be something else?

second problem in the winter my truck has a rolling idle and usually stalls out (kind of ruins the usefullness of a remote starter) only codes pulled from it where a transmission code (which im ignoring at the moment) and throttle position sensor out of range. any help is appriciated.

Grant

 

[jkdillard]

Iwas having problems with my 85 300. i checked the voltage going to the o2 sensor and it was reading way too high. changed it out and all was good.

 

[bluesman17]

yeah the tps didnt do the trick and i just put a new o2 sensor in a little less than a year ago, so im going to try the idle air control thing then ill go to the o2 sensor. thanks for the input though

 

[baumbr]

The 300 I-6 in my '80 had similar problems. Turned out that the screws holding all the various levels/sections of the carb together had worked loose. After a proper snugging things seem to be fine.

 

[bluesman17]

Im fuel injected so i get all the fun sensors that hate me and fail in a random sequence.

 

[4x4ever]

I had that problem in the winter, all I did was change the spark plugs and adjust the carb to lean it out a bit cuz it was running to rich. I also changed the distributor plugs and it seemed to make a difference.

 

[Cl10racer]

You could try cleaning the O2 sensor with some brake cleaner to see if that helps before buying that overpriced little thing