Starter Not turning over

Turn the key to start, everything comes on, but engine won't crank, turn key off and on many times, sometimes 10 times sometimes 50 times, engine finally cranks, problem comes and goes sometimes this happens once a month sometimes it happens 3 times in a day. Really don't want to just swap parts out until I have a clearer picture of what is going on. I've been told may be a bad ignition switch or may be a hot spot on the starter, what do you think?

I have a 2005 ascender and have the same exact issue. I ended up replacing the starter today. Hope for your sake it is not the starter. It is not covered on warranty and is close to $700. Let me know if you find out anything else. I do not have my car back yet so I do not know that the starter fixed the issue yet?

My wife's 2003 Ascender has the exact same issue. We replaced the starter module with no luck. Ignition switch is our next target.
If you have identified the issue with your truck, any help would help us out greatly.
Thanks

I have a 2003 Ascender that I just had this same problem with two weeks ago. I had the Ignition switch replaced and now it starts every time. Hope this help you.

Weird deal. Key switch will rotate to start position, but starter won't engage. I don't hear any clicking. Won't come out of park position (ie, I can't get it into neutral/drive/reverse), and the dashboard won't light up going through the usual electrical checks. No computer led for odometer, mpg, etc.
Changed battery without sucess. Went through all of the fuses in the engine compartment and the one in the 2nd row in the passenger compartment. Even tried to change out several relays. Called the dealer service dept (200 miles away) and they were no help. Basically said it had to be in the battery or the battery cables, as it should turn over without the computer/fuses.

Any thoughs?

Thanks! This is my first experience here, and am excited to see what kind of response I get!

Carter
Show Low, AZ

I am having the exact same problem with my 2004 Isuzu Ascender, V8 4WD. Works fine some days. Sometimes for weeks. Sometimes it stops working three times in a day. Right now it has not started for 4 hours. Longest ever. Usually it starts after a few minutes. Some suggest it might have something to do with the security system. No correlation with weather or temperature. Ignition replaced under warranty didn't make it stop. Now it seems totally dead. It has a good battery. Plenty of power. New ignition. Some people say it was the "smart key" the chip in the ignition key. But it's definitely worse today. I hear it click, all lights on the dashboard light. Buzzers buzz, then nothing when I crank. When it does usually crank it sounds totally normal and starts like a charm. Sometimes it seems to be

When turning the key everything lights up but won't start, no sound nothing. Few minutes later we'll try again will crank but ni start, then it doesn't do anything again. Checked all relays all good. Just replaced with new battery. When key is turned to on won't let us put it in gear (neutral). What do we do now, didn't even have this car for a year yet!