Escalade drinking more fuel lately

[sudesh]

From last month or so i am noticing that my Escalade is drinking more fuel per 100 km. It used to consume 18 - 20 L / 100km and now it has gone to 24 - 25. Any specific reason for this? I recently crossed 120k km on clock. But i think this is not very high mileage as per year of car. Please help me guys. tHanks.

[rohan]

Get the CKPS Crank position change, often time if everything is fine with engine, spark plug, regular service then main culprit is CKPS for fluctuating (negative) gas mileage.