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Old 09-28-2009, 07:34 PM
gspaniel gspaniel is offline
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Angry 98 f150 303 code
My 98 f150 has a miss on cylinder 3 [ code 303 ] i have changed wires , plugs ,coilpack , and the injector with no results . Does anybody have an idea what it could be ? The compresion is good on all cylinders .PLEASE HELP
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Last edited by gspaniel; 09-29-2009 at 05:35 PM.
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Old 09-29-2009, 07:27 AM
way2old way2old is offline
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Do you have the correct information posted?? Or just a typo?? P0303 is cylinder number 3 misfire.
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Old 09-29-2009, 05:39 PM
gspaniel gspaniel is offline
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sorry you are right its cylender 3 . Dont know what I was thinking
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Old 09-29-2009, 07:22 PM
way2old way2old is offline
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What size engine? The V8 is known for losing a cam follower causing a misfire. Is it still missing or is it just the code coming back? What is the compression readings on all cylinders? Sorry for the questions.
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Old 10-16-2009, 09:52 PM
romeodz romeodz is offline
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If its the V6, verify you are not also loosing engine coolant. My 1997 and a misfire code along with coolant loss and I had to replace the lower intake manifold gaskets. Basically a 4 to 5 hour job.
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Old 10-22-2009, 01:17 PM
gspaniel gspaniel is offline
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v6 4.2 lower manifold gasket leaking coolant into cylinder1and3 found it when i checked compression Thanks for the help
Last edited by gspaniel; 10-22-2009 at 01:21 PM.
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Old 10-22-2009, 07:38 PM
way2old way2old is offline
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Thanks for the fixed post. We do not get that enough.
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Old 10-24-2009, 04:32 PM
romeodz romeodz is offline
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Quote:
Originally Posted by gspaniel View Post
v6 4.2 lower manifold gasket leaking coolant into cylinder1and3 found it when i checked compression Thanks for the help
No problem.. This site is where someone told me what was wrong with my engine. Glad to hear your running again.

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Last edited by romeodz; 10-25-2009 at 12:06 AM.
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1998, 303, 46, 98, cam, code, cylinder, engine, f150, follower, ford, freestar, misfires, mustang, p0303


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