Join Date: May 2002
|B11/B12/KN13 82-90 chassis B11 (1982-1985 Sentra), B12 (1986-1990 Sentra), and Pulsar|
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There is a rattling noise from the engine when you accelerate:
Your car runs well all the time. But when you press on the gas pedal to accelerate or to go up a
hill, the engine rattles like the cylinders are full of marbles.
1.The ignition timing may be set wrong: Adjust ignition timing.
2.The engine may be running too hot: Check and repair cooling system.
3.There may be a vacuum leak: Check and replace vacuum lines as required.
4.Incorrect grade of fuel: Fill with the correct, or higher, octane fuel.
5.There is an excessive amount of carbon built up in your engine: Clean carbon from
valves and combustion chamber. (Not a DIY job)
6.There may be a fault in the computerized engine control system: Check engine control
systems with a scan tool. Test circuits and repair or replace components as required.
(Generally not a DIY job)
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