Rough idle and shuts off

CKUREK93

MEMBER
1993 MAZDA B2600
2.6L
4 CYL
2WD
AUTOMATIC
247,000 MILES

Hello,

I have the truck listed above that is having engine issues. It running really rough and will shut off if I do not keep the throttle open. I recently replaced my injectors, cap and rotor, distributor, spark plugs, and wires. I also changed the fuel filter and alternator. This was happening well before I replaced all these parts. And the ECU was replaced in 2013. The check engine light is not on, and I am not quite sure how to check if there actually is any codes. After replacing all those parts the issue still persists. I have also cleaned the ignition control valve. I am not sure what is causing this issue. Can anyone help me better understand what could be the issue? I cleaned the idle control valve not the ignition control valve. Just for clarification.

Thank you.

3 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good afternoon my name is Roy and I will assist.

Check for vacuum leaks. That is the most common cause for rough idle and stalling. Look at all hoses for cracks or breaks.

Roy

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Tuesday, December 19th, 2017 AT 9:41 AM

CKUREK93

MEMBER
2 POSTS

Hello Roy,

Thank you for your reply, I will check them. What would be the best course of action to check them? I have heard of using seafoam but I am not sure about that stuff.

Thank you.