Question about 2000 Jeep Grand Cherokee
Caused by hot and lean.
which engine.??? at least 3 choices.
most have knock sensors. and will not knock.
if it really is knock then that is serious.
knock means detonation or ping.
if its just noise say that,
real PING happens under load.
1: check fuses.
2: check knock sensor for outside damage.
3: SCAN the PCM. do you have any DTC errors/
4: do a full 60k tune up. maybe its lean because the fuel filter is clogged.
Posted on Mar 24, 2014
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Posted on Jan 02, 2017
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