Sputtering???

poomero

NAXJA Forum User

Location

Tigard

• Jun 22, 2016

• #1

99 xj 4.0 4x4

The jeep just started to do this today. What would cause a sputter when I hit the gas form a stop? I changed the plugs, cap & rotor, and wires 2 months ago and nothing has gone wrong until now. Where should I start? The jeep was warm when it did this.

 

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Ou2mame

NAXJA Forum User

Location

Long island, ny

• Jun 22, 2016

• #2

I would start with checking the fuel pressure.

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Digger87xj

NAXJA Forum User

Location

Buffalo Creek/Lakewood CO

• Jun 22, 2016

• #3

sounds like something you put in is failing. Cheap spark plug wires fail fairly quickly. check for loose spark plug.

 

Shorty

NAXJA Forum User

NAXJA Memorial Lifetime Member

Location

on the beach in Ocean View, VA

• Jun 22, 2016

• #4

Digger87xj said:

sounds like something you put in is failing. Cheap spark plug wires fail fairly quickly. check for loose spark plug.

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I have to disagree-- after only 2 mos. I would look at other reasons for poor performance-- filters (fuel, air)
throttle position sensor problems
fuel pressure regulator problems

unless you have really boogered up the installation of plugs, cap, rotor, or wires, it's not very likely that they are your problem.

 

poomero

NAXJA Forum User

Location

Tigard

• Jun 22, 2016

• #5

I think its got something to do with the fuel. I have a small leak and i can hear air getting into the tank. I dont know if it would have something to do with this but it might be the pump.

 

Tim_MN

Freakish Hand Strength

NAXJA Member

Location

Minneapolis, MN

• Jun 23, 2016

• #6

Fix known problems. Inspect most recent work performed. Test fuel pressure, test TPS, test Coolant Temperature Sensor, test O2 sensors.

 

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BrokenSockets

NAXJA Forum User

Location

Ayr, Ontario

• Jun 24, 2016

• #7

My 92 5 speed would hesitate and sputter when taking off from a stop when my 02 sensor was bad.