Re: 99 grand cherokee limited 4.7 cutting out
My CPS went a few months back and it was intermittant at first. It cut out completely once, at a junction of all places! But I ran it for about a week after. There would be the odd moment where there was a small blip in the running of the engine, the light would come on. Then one day there was a real jolt from the engine, felt like I'd been rear ended. So took it to the stealership (I'd decided I wasn't going to attempt replacing it as access looked pretty difficult and I didn't have the time).
Long story short, got it replaced and never had any problems since. Can't say for sure if temperature effected it, but it did only happen when the engine had been running a while. No problems starting up or anything.
You should get a code thrown up though.
Also should point out that it only cut out while it was in motion and not at idle
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