Originally Posted by kyworkingman80
I have a 2000 grand cherokee 4.7 4wd stuck in limp mode did sum research and everything was doining towards the shift solenoid pack.so i replaced that and still Serna sluggish upon start up.onceengine warms up to 210 runs Fine but dont Think its shifting.overdrive is not working either light will come on but nothing.if I do the key dance i get error codes 1491 1492 0700 Please help lol
The P0700 is just the generic code for the TCM detecting a malfunction. You'll have to pull that code with a better scanner (that can read transmission DTCs).
The 1491 and 1492 likely have very little to do with your symptoms. The 1491 is a fault in the fan relay and the 1492 has to do with a temperature sensor on the battery (I think...).
You'll likely get a better response posting in the correct forum, this is for 2005-2010 grand Cherokees (WKs). I don't think newer models even have those 1490 DTCs, so we will never have encountered them.