5th Gen LS - Large Fluxuation of water temp, and moments of no heat.
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Joined: Nov 2009
Posts: 68
From: Portland, Maine
Replacing the water pump in the 5 gen is a breeze. Make sure you bleed the system afterward and clean the mating surfaces really good. BTW, have you noticed the WP leaking at all? Double check your fans just to be on the safe side since those cars are notorious for the fans going out.
do your thermostat install since you have it. bleed the car completely.
Drive. If it happens again and gets warm, pull over and try to bleed the car. If air keeps coming back and screwing you up it's likely going to be the headgasket.
happened in my 95 lumina 3.1L
Drive. If it happens again and gets warm, pull over and try to bleed the car. If air keeps coming back and screwing you up it's likely going to be the headgasket.
happened in my 95 lumina 3.1L
Monte Of The Month -- August 2014
Joined: Sep 2008
Posts: 25,145
From: Southeast PA
yeah I spent a bunch of money on diagnosing and thermostats and water pumps, etc.
so if the problem persists, I would just start with getting a pressure test done to see if it's an internal problem.
so if the problem persists, I would just start with getting a pressure test done to see if it's an internal problem.
Thread Starter
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Joined: Nov 2009
Posts: 68
From: Portland, Maine
Well boys... I'm pretty pissed right now.
...The reason there were no leaks before was that there wasn't any fluid to leak, it was already gone. I filled up the radiator and after I started the car and let the thermostat open up I got a constant stream of water out the back side of the motor. I can't see where it's coming from, but I'm sure we all know where it's coming from Head gasket time for this beast.
So how difficult of a job are we looking at for a head gasket job here? I'm used to 2.0L DOHC motors, so I don't know what I'm gettin' myself into here. I assume I will have to remove the valvetrain, but will I have to touch the timing of the motor? How long does it take a fairly adept motor guy to do the job?
Thanks guys for helpin' me out here... this sucks.
...The reason there were no leaks before was that there wasn't any fluid to leak, it was already gone. I filled up the radiator and after I started the car and let the thermostat open up I got a constant stream of water out the back side of the motor. I can't see where it's coming from, but I'm sure we all know where it's coming from Head gasket time for this beast.
So how difficult of a job are we looking at for a head gasket job here? I'm used to 2.0L DOHC motors, so I don't know what I'm gettin' myself into here. I assume I will have to remove the valvetrain, but will I have to touch the timing of the motor? How long does it take a fairly adept motor guy to do the job?
Thanks guys for helpin' me out here... this sucks.
Thread Starter
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Joined: Nov 2009
Posts: 68
From: Portland, Maine
Do I have to mess with the timing to pull the heads?
Also is this an interference motor?
I can't find hardly any information on this motor. Does it have an engine code? People on here tend to call it the 3100, but the search results always yield some old trucks everywhere else. It's confusing.
Also is this an interference motor?
I can't find hardly any information on this motor. Does it have an engine code? People on here tend to call it the 3100, but the search results always yield some old trucks everywhere else. It's confusing.
Thread Starter
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Joined: Nov 2009
Posts: 68
From: Portland, Maine
Yeah, there's no way they didn't know about it. Thanks for your condolances. I'm kind of stuck with it now... Come help me choose what motor to put in it now >>> https://montecarloforum.com/forum/sh...ad.php?t=17091
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smolek37k
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Dec 1, 2007 07:08 PM
