#jeep #jeepgrandcherokee #grandcherokee Diagnostic Code 1491 Coolant fan relay fix. Get your code by turning the key in the ignition 3 times quickly. If it
My check engine light is on with code P1281. My 2003 jeep grand cherokee was over heating and the shop replaced the relay and fan motor. the temp is now taking about an 1 hr before it gets to 210. wha … read more Jeep*Grand Cherokee*1999-2004* (WJ) 32 Fixes Found. 1. Problem:*Coolant loss/have to add coolant periodically. Related symptom: Odd smell from A/C dash vents. Passenger side carpet may be wet/moist. Cause:*The heater core is leaking. Fix:*Replace the heater core. 0. 02blue. 1549 posts · Joined 2011. #4 · Oct 29, 2014. P0133 is the bank 1 sensor 1. So that would be the upstream (precat) on the drivers side. Tricky to get to but not impossible. The connector may be more of a problem to reach. Those upstream connectors seem to be in a tight spot.A quick and easy guide to replacing the ESIM Module in a 2018 Jeep Grand Cherokee. You can order the same product I used here:ESIM Module for a Jeep Grand CTo do this, you should: 1. Check Coolant Levels. Low or weaker coolant levels can trigger the P0128 code in your Jeep Grand Cherokee because it can alter the engine running temperature, causing it to deviate from its ideal operating temperature. This can be detected by the engine coolant temperature sensor, which sends signals to the engine P1299: Vacuum Leak Found (IAC Fully Seated) - MAP Sensor signal does not correlate to Throttle Position Sensor signal. Possible Vacuum Leak. P1391 (M): Intermittent Loss of CMP or CKP - Loss of the Cam Position Sensor or Crank Position sensor has occurred. For PL 2.0L. fIBfj.