Bottom radiator hose and temperature gauge

Bottom radiator hose and temperature gauge

Postby hummblebee [OP] » April 23rd 2008, 10:33pm

My 88 Astro has been good to us over the years and we're trying to be good to it. A couple months back we replaced the transmission and today we did a general tune-up while cleaning it and getting ready for emissions testing. We're getting ready to drive from Tennessee to Oregon towing a trailer, so we want to make sure everything's tip top.

While changing the plugs and stuff today I noticed that the bottom radiator hose is in bad shape. A chunk of the rubber is taken out so that the metal hose is exposed. I think this must have happened a while back, when I had issues that led to the belt coming off. It seems like it wouldn't be hard to replace this hose, but I can't seem to find it in my Haynes guide and I don't know what to expect - will there be coolant in it, if I just take the old one off and put the new one on? Do I need to drain the radiator first?

Also, once I'd finished the plugs and filters and such and started back up, I noticed that the temperature gauge isn't working. It spikes when I start the engine and then goes to 0. It worked fine the other day, so I can only assume I messed it up somehow. I haven't gone back under the hood and doghouse yet so I don't know if maybe I'll see something thats obviously disconnected or anything... but again, I can't find any other info on how the temp gauge connects and works.

I'd appreciate any insight you guys could give me on this!
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Re: Bottom radiator hose and temperature gauge

Postby allwhite1100 » April 24th 2008, 12:03am

the radiator hose is really easy but there will be coolant in it you have to drain the system, first change the hose the fill the system back upas far as the temp gauge sounds like it just went bad because if it were unplugged it shouldnt even sweep on start up
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Re: Bottom radiator hose and temperature gauge

Postby bad_astro » May 20th 2008, 1:11pm

All of my gauges spike when I start mine but then go down and work normal during my drives.
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