I have electrical power but no start

Like the title says i have battery power when i turn the key but when i attempt to start the engine, the starter will not crank the engine. Starter, battery, battery cables, and cps are not that old. Also, this only happens when the jeep has sat out in the heat for long periods of time. I have done weeks of searching but all connections look good... possibly something wrong with ignition switch..... thanks in advance.

96' classic 2 inch BB 4.0 AX-15, NP231

Can you jumper the 2 connections on the starter and get it to turn over? If not, the starter may have a bad solenoid.

Yes, the starter is fairly new and i tested it... (making sure i touched the proper connecters on the starter)

in an off thought... is your vehicle an automatic, or manual trans?

an automatic is designed to only start in park, or nuetral... that is if the if the switch on the trans is working properly.
if your vehicle is an automatic, try this...
while applying the brake, turn your key to crank position (nothing happens, right?), now while holding it in crank position, continue to hold the brake, and wiggle your trans select lever back and forth through PARK, reverse, NUETRAL... did you hear the starter kick at all? if so, you may have a defective Nuetral safety switch, or a problem with proper adjustment (not likely if nothing's been worked on in that area)

if your vehicle is a manual... well, that's a different story.

Good thought, but the NSS can be ruled out.

Renegade said:

96' classic 2 inch BB 4.0 AX-15, NP231

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I would say ingition switch, but that can be a spendy part to throw at it, and have it not fix the problem.

surely, an ignition switch can be problematic, and hard to diagnose when intermittant.

if there's a multimeter handy, a voltage drop could be performed between the key components involved.

also... if your vehicle has an alarm, with starter disable feature, you might want to look at the voltage drop across the relay, I've seen them use substandard guage wiring in this area on some installs, and problems won't show up until things get hot.

thanks for the help guys. Yeah i will look at the ignition switch assembly and test with voltmeter, i guess ill also check all grounds and such.... its just weird how it only happens when the car has been sitting out in the heat....