Fuel Pumps

[Dynomite]

Originally Posted by cadillac531

OK. So I ordered 2 of the P240KC pumps from Rock Auto and installed them yesterday. The fuel pressure has definitely been restored. I have now 50psi from both pumps. It definitely restored power.

I obviously haven't put a lot of miles on these pumps yet, but so far I would recommend these pumps for anyone looking for replacements. Plus they were only 22.00/ea. Seemed worth it to try them. They are just as quiet as the stock ones too.

There were no visual issues upon inspection of the pumps. They sit in fuel all the time and had little use. They were bound to go out sooner or later.

Did your installation look something like this?
or did you remove the old pumps which are connected and nylon tie new pumps in that position?
And/or nylon tie the new pumps together into the original position where the old pumps were removed?

[Roadster]

Pumps came in on Thursday.....they have this rubber type cover on the pumps, I imagine this is the norm. Are these covers for shipment purposes and need to be removed prior to installation?
On the shelf they go......

[cadillac531]

Originally Posted by Dynomite

Did your installation look something like this?
or did you remove the old pumps which are connected and nylon tie new pumps in that position?
And/or nylon tie the new pumps together into the original position where the old pumps were removed?

So, yes, I cut the zip ties from the old pumps and put the new pumps into the assembly and re-zipped tied the in. I then put the new strainers on and dropped it all back in the tank.

I made sure to use metal worm gear clamps in place of the plastic ones I removed.

The nice thing with the new pumps is they came with a new pigtail. When I was positioning everything around, the plastic push in piece on the old pig tail broke, and I was able to take it off the new wiring and put it on the old set up.

[cadillac531]

Originally Posted by Roadster

Pumps came in on Thursday.....they have this rubber type cover on the pumps, I imagine this is the norm. Are these covers for shipment purposes and need to be removed prior to installation?
On the shelf they go......

Since there are so many different applications for these pumps, some may require that rubber insulator. In order to utilize them in the existing fuel pump assembly, they must be removed.

[cadillac531]

Well, I finally got a chance to put a few miles on since the new pumps, and so far so good, they work like a charm. As of right now, I would recommend these pumps to anyone needing to replace their old ones. They also seem to be almost as quiet as the stock pumps, and that I like.

[RussMcB]

Can I add some advice based on what I've seen in my car this weekend?

If you're thinking about replacing pumps, you might want to consider new wiring also. I discovered two separate problems with mine. The plug going through the plate has an issue, and also one of the fuel pump plugs. I repaired mine, but soon I'll shop for new GM wiring and go back in to get it back to new, stock.

[cadillac531]

Originally Posted by RussMcB

Can I add some advice based on what I've seen in my car this weekend?

If you're thinking about replacing pumps, you might want to consider new wiring also. I discovered two separate problems with mine. The plug going through the plate has an issue, and also one of the fuel pump plugs. I repaired mine, but soon I'll shop for new GM wiring and go back in to get it back to new, stock.

Thanks for the input. I didn't notice any issues with the wiring when I replaced my pumps. That doesn't mean someone else might not have issues with their wiring. It's a good idea to give the wiring a look over anyway.

Thanks.

[RussMcB]

I'm glad I had a couple of buddies over lending a hand. After we fixed my initial problem and about to put it all back into the tank, one of them suggested a final test of the whole assembly. Glad he did because we found a intermittent loose wire in a pump terminal. Wiggling the wire caused the pump to run and not. Very glad I had a chance to fix it before it had a chance to cause havoc later.

[cadillac531]

OK, so I'm happy to report that I took the car on a road trip to my folks' house last weekend (about 260 miles round trip) and the pumps operated flawlessly. Anyone looking to replace their pumps should check out these ones as they are pretty inexpensive (...and they've lowered the price by $1 since I bought them) and they seem to do the job.

Best part is that with the cruise and AC on, she pulled down 23.2 mpg. Not bad at all.

Now to tackle the noise in the transmission (throw out bearing, I suspect).

[Z51JEFF]

Great info as always. Not to hijack the thread but a few years ago I bought a new sending unit from THE PARTS LADY and I've always thought this was an OEM AC DELCO part. After reading one of the threads from 2009 and a failed pump in one of these from the same supplier,is the set I have unreliable aftermarket junk?Thanks again for the rest info here, I'll be adding a set of these ROCK AUTO pumps to the Z stash.