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2000 gmc jimmy p0300 code

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Jun 28, 2013, 11:49 AM

Post #1 of 2 (1258 views)
2000 gmc jimmy p0300 code Sign In

I have a 2000 gmc jimmy that wants to start sometimes and others it wont. When it is running it idles and drives fine untill about 55mph. I did a solid tune up so cap rotor, pcv, airflow sensor. fuel pump seems to be working fine but i lose power and can hear the engine missing at about 55, HELP...

Hammer Time
Ultimate Carjunky / Moderator
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Jun 28, 2013, 12:48 PM

Post #2 of 2 (1231 views)
Re: 2000 gmc jimmy p0300 code Sign In

Check it for restriction in the exhaust and test the fuel pressure.


We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

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