i think i have some of yal confused my truck has a problem that just comes up every once and a while. it will crank forever but it will not start. we have read online different things about CPS sensors we took the CPS off and went to and got a new one we put the new CPS in and it was still doing the same problem. we took the new CPS off and left it for about 5 days. we took back the new CPS and got our money back. I put the old one back in today and it started just fine i drove it around and it still would start. some times i wish it would just not work all the time so i could figure out what is wrong. i realized that my old CPS gromet was shot and i need to put a new one on Could that be the problem i just want to know what yal think
ps it is a 91 jeep comanche
inline 6, 5 speed stick