What did you do for your GMC today?

[FetchMeAPepsi]

Originally Posted by jagarra

Since you have the sending unit out, hook it up to the wires going to gauge and see how it reacts as you move it through it's range. You mentioned you ordered a new sending unit, does the ohms reading between the sending units match?

I can't tell. i sent the old one to the trash heap when the new one came in.
It's so freaking cold outside today I didn't do anything with her, but try the key. I guess with her being down so much I need to put a tender on the battery. She was drt. (dead right there).

So I ordered a new Pulsetech Extreme Charger that will sit in a box out by Cecilia and get plugged in every time I park her...when I remember to do it.

According to a ton of videos and reviews online it's the best desulfater (battery repair-er) made so we'll see. I'm sure as much as she sits she's got plenty of sulphation going on.

Once it warms up a bit more I'll pull the sender out and run it up and down to see where it shows up on the gauge. i guess there's also the possibility that my gauge is off.

[jbgroby]

Striped down, cleaned up and mounted the new wheel cylinders to the front. In preparation for the upgrade on the '63 hubs I received from another member. I'm changing the hoses, wheel cylinders, brake shoes and springs, hubs and drums. It was a good Saturday.

[WE7X]

I have not had one out of a P/U for many years, ( Mine are HD industrial aftermarket tanks on the RM7500 chassis, but as I recall there are two small tabs that the float arm bump up against at the upper and lower limits of the travel.
With the sender out of the tank, it should be possible to move the arm through the range of travel, to be sure you are getting the full resistance of the expected range ( 0 to 30 ohms; or 15 to 90 ohms) as specified for the correct sender.
If you are getting the correct range of ohms readings then the gauge may be the problem, but usually it is the sender that causes trouble.
Tank senders that have sat unused for a long time, can sometimes develop an open circuit. I saw one case many years ago, where a sender was 'dead' between about 1/4 and 1/2 tank. The gauge would work normally down to about a half tank, then suddenly go to 'E' for a while, then return to reading correctly for the last 1/4 tank.
It was a bit disconcerting when you suddenly saw it registering empty; and had to mentally stop and think if it was a true reading or just the dead spot.
Rod J
Issaquah, WA.
1970 RM-7500

[Robert B.]

Drove mine today around town here. Moved my wife’s urology clinic from one bldg to another down on the S. side of the city. Love driving the old ‘63. W/ a 511 front and rear end im not going anywhere too quickly. I agree w/ our previous commentator regarding cigars. Might I recommend a 57 gauge Alec Bradley Vice Press - they’re meaningful and they perfectly compliment our early ‘60’s GMC’s.


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[jbgroby]

Went to pick up funiture and what-knots for the wife from her moms house, nice 75 mile round trip streach of the wheels.......Brakes stop much better.

[ilvracn]

started my 66 sunday, choked it and she popped right off, had to spread some gravel in front of garage, did some work to the driveway last fall. i think i'll taker her for a drive this weekend, if weather is good.

[FetchMeAPepsi]

I put my tailgate back on for the first time in probably 6 years

[GMCNUT]

After driving the 63 over 90 miles one way to the Coker Tire show in Chattanooga TN a week or two back where she purred like a kitten all the way up and back, I have decided my next piddling projects will be to install replacement inside sunvisors and an NOS choke cable I found on ebay which will complete the set of NOS dash knobs - headlight, wiper and cigar knobs were already NOS.

[FetchMeAPepsi]

I drove all the way down to the middle of Garville today to drop my clutch off at a rebuild shop. I'm so happy I kept it. My thinking is that the 11" clutch from a Big truck I installed may be the reason I can't get in 2nd gear now. If that's not it, at least I have a OEM clutch to put back in!

[POWERSTROKE]

Originally Posted by WE7X

Tank senders that have sat unused for a long time, can sometimes develop an open circuit. I saw one case many years ago, where a sender was 'dead' between about 1/4 and 1/2 tank. The gauge would work normally down to about a half tank, then suddenly go to 'E' for a while, then return to reading correctly for the last 1/4 tank.
It was a bit disconcerting when you suddenly saw it registering empty; and had to mentally stop and think if it was a true reading or just the dead spot.
Rod J
Issaquah, WA.
1970 RM-7500

I had something similar on an F-150 with dual tanks. Except it went from a quarter tank to empty. I always used that tank first, ran till the engine sputtered and switched to the full tank. Never did try to fix it. Did the same think on my diesel pickup too a couple times, would slow from 65-70 to 40-45 before it would get fuel again. But it was so consistent on mpg I could predict the number of miles to put on each tank and have maybe a gallon or less fuel in the tank. Truck had a 20 gallon and 24 gallon tank, book said they were 16 and 19. Had 800 mile range from both tanks, 24x18.5= 814 miles. Ran truck 10,000 miles one summer and averaged just over 20 mpg.