rough idle and sucking noise
#11
07-11-2020, 11:19 AM
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Sounds like I'm dealing with the same issue on my 01 Ram 1500 5.2. Somehow I've made it 19 years without needing an O2 sensor. Looks like the upstream sensor is easily accessible, but what's the trick to unhooking the plug? It's on top of the Transmission and i'm having a hell of a time getting both hands on it and also being able to see what i'm doing. I've got the red clip partially slid off of the plug, but just can't get the plug unhooked. There has to be a trick to this.
#12
07-11-2020, 12:10 PM
Yeah, that really wasn't the best place for a connector, unless you have gorillas working for you....
Its held in place by a little christmas tree like clip, if you can dislodge that, you can pull the connector down a bit further, where you can actually get both hands on it, and see what you are doing. I *think* there is a lock on it as well.
Its held in place by a little christmas tree like clip, if you can dislodge that, you can pull the connector down a bit further, where you can actually get both hands on it, and see what you are doing. I *think* there is a lock on it as well.
#13
07-11-2020, 07:24 PM
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#14
07-12-2020, 10:01 AM
#15
07-12-2020, 10:11 AM
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Everything I read was to try unhooking the upstream sensor and see if the truck goes back to a normal idle and it sure did. I've got the new sensor and will try to break the original loose today since it's been soaking for 24 hours in PB blaster. I'm hoping I can get this thing loose with just a wrench and breaker bar.
#16
07-12-2020, 11:08 AM
Everything I read was to try unhooking the upstream sensor and see if the truck goes back to a normal idle and it sure did. I've got the new sensor and will try to break the original loose today since it's been soaking for 24 hours in PB blaster. I'm hoping I can get this thing loose with just a wrench and breaker bar.
#17
07-12-2020, 11:29 AM
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#18
05-22-2021, 09:14 PM
Both o2 sensors are relitivley new but I gave it a try any ways and here's what I got the hissing noise was still there upon crank but at the normal volume not insanely loud just a nice quiet idle it never started to bog down or hiss/such air loud but I got to spraying around the intake manifold and the motor revved up ever so slightly when I sprayed around back of the ac compressor. But no matter how much I sprayed it never changed again...wondering if I've got an intake manifold gasket leaking as well....
#19
05-22-2021, 09:18 PM
Gaskets
Both o2 sensors are relitivley new but I gave it a try any ways and here's what I got the hissing noise was still there upon crank but at the normal volume not insanely loud just a nice quiet idle it never started to bog down or hiss/such air loud but I got to spraying around the intake manifold and the motor revved up ever so slightly when I sprayed around back of the ac compressor. But no matter how much I sprayed it never changed again...wondering if I've got an intake manifold gasket leaking as well....