94blazerz

hi, i have a 1994 k1500 blazer with the 5.7 v8. it will run perfect cold and when it heats up to operating temp it just shuts off. then to start it i have to put pedal to floor and it will chug and not want to run. so the check engine light comes on and it reads "coolant temp too low" would a coolant temp sensor cause the engine just to shut off? i really need help, this is my dd and cant drive it!

dewey

Yes, the CTS can cause a problem. If the engine is hot and the CTS is telling the computer that the engine is cold, either the engine won't run at all after it warms-upor will run poorly.

shawnvw

yep....just as dewey said.....the coolant temp has some contorl over air\fuel ratios. If it is reading cold, it will add more fuel to the ratio, although i can't say that i have ever seen it add so much fuel that it won't run at all, not to say that it isn't the problem.