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03 1500 4.7 loss of oil pressure no power

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03 1500 4.7 loss of oil pressure no power

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Old 04-15-2019, 09:41 AM
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Default 03 1500 4.7 loss of oil pressure no power

So my 03 1500 4.7 is loosing oil pressure when it warm and under 1000rpm. We replaced the oil pump and did the timing (took it to a shop for the timing). We also changed out the spark plugs. Now our oil gage is still showing low oil pressure while itís warm and at an idle. Also just last week when exhilarating from 40 mph to 55 mph it sputters and has lack of power from idle(800rpm) to 60mph. The check engine light is on but the only code that was coming up was CO2 sensor. Does anyone have any ideas what it could be?
 
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Old 04-15-2019, 10:36 AM
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Probably a bad oil pressure sending unit, and a failing O2 sensor. If you step harder on the gas, does it run better? (greater than half throttle.)
 
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Old 04-15-2019, 10:46 AM
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Originally Posted by HeyYou View Post
Probably a bad oil pressure sending unit, and a failing O2 sensor. If you step harder on the gas, does it run better? (greater than half throttle.)
I believe the sending unit was just replaced too. When stepping on the gas it acts like itís flooding out
 
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Old 04-15-2019, 11:32 AM
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Need to plug in with a scanner, and see what the PCM thinks is going on.
 
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Old 04-15-2019, 11:39 AM
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Originally Posted by HeyYou View Post
Need to plug in with a scanner, and see what the PCM thinks is going on.
yeah Iím going to go today to my friends shop
 
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Old 04-15-2019, 11:44 AM
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Originally Posted by Danielle Drake View Post
yeah Iím going to go today to my friends shop
Think I would have him put a mechanical oil pressure gauge on it as well, just to verify what pressure is doing. Wouldn't be the first time someone has gotten a bad part, right out of the box.
 
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Old 04-15-2019, 12:59 PM
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Originally Posted by HeyYou View Post
Need to plug in with a scanner, and see what the PCM thinks is going on.
i will see if he has time to check it
 

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