Just ordered a new seal. Easy $22 improvement. The water was getting in just above the fuse box where it goes through the firewall and also through the bolt holes for the emergency brake. Thinking of just slapping seam sealer on the firewall side and knowing I'll have to dig through it should I...
Only had the truck a year and figured out during the latest rain that a cabin leak is from this spot where water consistently runs down a metal ramp like piece at the sides of the cowl. My first thought is to clean up the rusty areas where the water goes and slather it with sealant.But the...
It's a trailering special but has a 350 SBC in it. I thought the same about the weather, I'm not exactly in Texas in July. But it does run okay after sitting for a couple of hours. My temp gauge isn't working right now, but I do have an infrared so I'll keep that in the truck for next time. If...
I got parts to put in a return line off the mechanical fuel pump. I did put a new module on it 6 months ago as part of a distributor rebuild kit, which of course could've been faulty. I know I put plenty of the heat sink goop on it, but yeah, if this return line doesn't fix it I might fire up...
Update, not a huge one. Still dealing with a fuel starvation issue, haven’t had a lot of time to do work but have some new information.
The first time I had the problem I’d driven the truck 30 miles, sometimes at freeway speeds, then let it sit for 2 hours and tried to drive it back. It was...
Thanks for all the ideas. Haven't had time to work on it because of the holidays, but I did drive it around town running errands without issue on Monday. There was none of the jerking/engine cutting out at all. But then I noticed something else, when I blip the throttle under the hood the upper...
1977 GMC Sierra Grande, after a heavy rain is always water dripping down the rubber flooring to the left of the brake pedal. Is this more likely coming in at the window seal or one of these openings where the hood meets up?
My fuel pump is only a 2 line so would need to replace it with a 3 or add a filter with a return line. The sending unit has 3 ports. I think I do want a return line, any difference whether I replace the 2 line fuel pump with a 3 or add a filter after the pump with a 3rd port?
The quadrajet has a filter in its inlet. I was more looking for a way to reduce vapor lock by keeping the fuel cool by sending it back to the tank rather than just sitting in the line behind the carb. I'll have to look at my mechanical fuel pump. I installed it months ago and don't remember a...
Took the truck on its longest drive since owning and sorting it, 60 miles including some freeway time, and on the way back the power started to drop out in surges and I had to limp off the freeway and the rest of the way home. Surging kept getting worse and right before I got home a backfire...
Came onto this forum months ago for help because the '77 GMC Sierra Grande my neighbor gifted me last November was dieseling when I shut it off. At that point I was new enough to know nothing about carburetors or distributors or timing. I didn't even know what I was hearing was called dieseling...
Electrical amateur here, getting that out front. Hooked up old wires that went to the stock radio to an amplifier. Only change was there was a ground wire going to the old radio and no spot on the amplifier for the ground, so just let that hang free. Figured it was just a wire grounding to the...
I have a second rebuild kit on the way, this one from Cliff's rather than O'Reilly and it includes a new plastic float. Might as well rebuild it again and check everything at that time. I'd reused the nitrile float that was in there because it wasn't compromised but then I read that their...