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2000 gmc jimmy p0300 code


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barstowjohn
New User

Jun 28, 2013, 11:49 AM

Post #1 of 2 (1183 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
Hammer Time profile image

Jun 28, 2013, 12:48 PM

Post #2 of 2 (1156 views)
Re: 2000 gmc jimmy p0300 code Sign In

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



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