Question about 2006 Nissan Xterra

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Engine turns over but will not start. sometimes it chugs, or acts like it is dieseling. when it does start it runs fine.

If it sets a while it will sometime start

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Without seeing it and witnessing the problem or being able to look at an ECU diagnostic code, my first thought and this is only a guess, would be to suspect water in the fuel line or somehow getting into the combustion chamber. Has the engine ever overheated on you? If it has, then one possibility would be a blown head gasket, but if so then I would also suspect and look for additional symptoms, such as the engine oil appearing milky-looking or looking at the radiator fluid/engine coolant and seeing droplets of oil floating on the water. Are you periodically having to add either oil or water but otherwise see no apparent leaks? Either symptom is indicative of a blown head gasket (or a cracked cylinder head) and both symptoms equate to a major repair expense (over $1000). I would first check for water in the fuel line and if that can be 100% ruled out then I would pull all the spark plugs out and run a compression check on each cylinder. How many miles are on it? Per your owner's manual the car was due to have the spark plugs replaced at 90,000 miles. Was this done? (If you bought it used with over 90k on it, it's pretty safe to assume that the plugs were not changed). Sorry I can't be more specific, but your problem could be due to several possibilities, Hopefully you know an honest mechanic who can help you. (avoid the ones who advertise). Good luck!

Posted on Dec 01, 2014

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Posted on Jan 02, 2017

SOURCE: 2003 nissan sentra 1.8 engine

Check your battery terminals for corrosion.

Posted on Jun 27, 2008

txkjun
  • 409 Answers

SOURCE: Hello, I have a 2002

You will need to run a fuel pressure test on it to see if your fuel pressure is correct. How many miles are on the car and when was the last time the fuel filter was replaced.

Posted on Dec 26, 2008

motor1258
  • 6674 Answers

SOURCE: My car is barely starting

Check all your connections, make sure they are all clean & tight. Do you have a multimeter available for a voltage check at battery, before & after starting?

Posted on Jan 02, 2009

  • 740 Answers

SOURCE: Engine does not run smooth

Sounds like a fuel problem, Bad fuel pump relay of actual fuel pump check relay first may be working intermittently.( Replace relay first before going to pump). Good luck thanks for using FIX YA

Posted on Jan 16, 2009

  • 880 Answers

SOURCE: 1985 nissan pickup acts like running out of gas

Fuel filter

Posted on Apr 13, 2010

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