Started to run a little rough

GALATIAN5

MEMBER
1994 CHEVROLET TRUCK
20,000 MILES

1994 chevy truck it was running fine, started to run a little rough checked and it was low on oil so refilled it and ran fine then about a week later it started running rough again. It idles just when you start driving it it starts to hesitate and not run.

When you hit the gas it seems to be missing like it wants to quit for the most part when it is idling it is okay but it does miss sometimes while just idling. Replaced all the spark plug wires except the one going to the distributor cap.

Please Help

4 Replies

FIXITMR

MECHANIC
9,990 POSTS

What about plugs?

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Thursday, December 29th, 2011 AT 6:31 PM

GALATIAN5

MEMBER
2 POSTS

Yeah sorry I thought I put plugs and wires replaced them also

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Thursday, December 29th, 2011 AT 6:33 PM

FIXITMR

MECHANIC
9,990 POSTS

What motor? What about cap/rotor?

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Thursday, December 29th, 2011 AT 6:34 PM

RASMATAZ

MECHANIC
75,992 POSTS

Replace the coil wire

Go to this link:https://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs

2.Inadequate spark/coil,defective spark plug wire.

3.Lack of compression

4.False air leakage.

5.Faulty fuel injectors.

6.Insufficient fuel pressure.

7.Contaminated fuel.

8.EGR valve that is leaking.

9.Oxygen sensors.

10.Throttle position sensor.

11.Manifold absolute pressure sensor

12.Mass Airflow Sensor

13.Idle air control valve

Note: If it doesn't apply disregard it-

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Thursday, December 29th, 2011 AT 6:34 PM