What is your question?
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What is your question?
Car is chugging and even dies. Can get up to about 60mph then chugging again. Sometimes it even runs fine for short term. I have replaced the air and fuel filters, cleaned Mass Air Sensor. Still no change. No obvious leaks but chugging and almost knocking as if engine is starving for air.
What makes this problem better or worse?
Nothing
How long has your 2001 Nissan Xterra had this problem?
Three days
Different ignition systems - need engine size..
3.3L
Ok - ‘VERY STRONGLY’ suspect failing distributor *assembly* .. Well know problem with this engine! Usual symptoms - runs ok while engine is COLD - the warmer engine gets - worse the engine runs. Can cause engine stall - no re-start condition until engine cools. Recommend *hands-on* testing by qualified personnel - however this distributor assembly contain multiple components - can be difficult to test and may not trigger trouble code(s) .. Experienced mechanic can usually evaluate by observing engine performance and test driving. Good luck!