What could be the cause of an engine "chugging" only after it warms up?

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91 Nissan Sentra --runs fine when cold. Where should I start looking?

2007-03-04 17:09:27 · 2 answers · asked by Petrushka's Ghost 6 in Cars & Transportation ➔ Maintenance & Repairs

i would start with a base timing check to see if it is advanced or retarded, that sounds like it could be the problem to me.

2007-03-04 17:56:58 · answer #1 · answered by Anonymous · 0⤊ 0⤋

A bad O2 sensor might be making it run too rich when it warms up. And about a hundred other possible reasons.

2007-03-05 00:34:42 · answer #2 · answered by Nomadd 7 · 0⤊ 0⤋