Truck fires...only if its above 32 degrees outside???

1991 Chevrolet Silverado K2500 4x4 224,000 miles 5.7l v-8 350 (only 12,000 miles) 5w-30 Royal Purple Synthetic Oil
The engine cranks over and it will fire after a slight pause if it was in
my garage all night but if its left outside and its a cold night it cranks over but doesn't fire unless i apply the gas pedal and pump it as it cranks over.
Any suggestions?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

I have a 1990 1500 that had the same problem. The colder it ot, the harder it was to start but mine had 165,000 miles on it at the time. Turned out to be a bad ignition module. But if your truck has only 12,000 miles on it, you might want to check the ignition wires, coil and plugs.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% There are two classes of pedestrians in these days of reckless motor traffic - the quick and the dead. ~ Lord Dewar 1933 ~
Climbing into a hot car is like buckling on a pistol. It is the great equalizer. ~ Henry G. Felsen 1964 ~
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.