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Why are GM fuel pumps so short lived?
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#31
 
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Re: Why are GM fuel pumps so short lived? -
02-05-2006
, 11:22 AM
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No different than running the engine low on oil or coolant. Service life will be shortened when operating requirements are not met. "<RJ>" <baranick (AT) localnet (DOT) com> wrote in message news:iau9u15paosb2tslta7i9gk6hnm9tq8e4j (AT) 4ax (DOT) com... What engineer would spec a component with such fragile operating characteristics ? Who would approve it ? On Sat, 04 Feb 2006 13:24:27 GMT, "Repairman" <repairman54 (AT) earthlink (DOT) net wrote: Fuel cools and lubes the pump internally. Pump running dry on the curves and turns, even for a split second, will shorten it's life. Running out of gas is the worst for the pump. "jcr" <nospam (AT) nospam (DOT) com> wrote in message news:jvOdnQO3Oct0lXnenZ2dnUVZ_sGdnZ2d (AT) comcast (DOT) com... rj |
#32
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Because people don't change their fuel filters at the 30k interval like they should. Add running the tank down to fumes to the mix and voila......... |
Clogged, and over heating, from low fuel.
#33
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What is it about electric fuel pumps that makes them fail after only 100 000 KM or so. Does the motor wear out somehow or is it some other thing that goes bad? |
I've never had a problem with Chryslers fuel pumps, even though I don't
clean them before 80K miles.
#34
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Why then is this never stated in the owner's manuals or during the pre-delivery customer instruction period ????? I agree. I know know because my feul pump died in the middle of the highway |
GM!
"John Horner" <jthorner (AT) yahoo (DOT) com> wrote
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Repairman wrote: That's why the low fuel light is a amber light and the gas gauge E zone is red. Your supposed to keep ALL the vehicles fluids above the minimum, just like oil and coolant. Why then is this never stated in the owner's manuals or during the pre-delivery customer instruction period ????? |
#35
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On Fri, 3 Feb 2006 17:43:18 -0500, "Steve W." <Dugdug56 (AT) what (DOT) com wrote: Where are you getting your pumps? Never seen them fail that fast unless they are junk out of the box. Might be time to look at other issues, like bad ground to the pump or low voltage, also do a flow rate test and see if there is something else as a contributing factor. You've hit upon the crux of the problem, second rate aftermarket new junk or rebuilts. There are a few truths to be noted here, anecdotal "evidence" to the contrary. The first is that in-tank pumps are usually good for most of 100K under normal conditions. The second is that having the tank mostly kept full means the pump runs submerged keeping it cooler thus adding to its potential service life. The third is that an in-tank pump is a bitch to get to, very time consuming if you DIY and very expensive to have done for you. The fourth is that you don't buy half-assed rebuilt junk regardless of the "lifetime warranty". You bite the bullet, buy new OEM or quality aftermarket or rebuilt (good luck finding either of those) and have done with it. |
sick of their high prices. They my regular mechanic did the last few
which I bought aftermarket. OEM did not show any better performance.
and the first one blew a few thousand miles out of factory warranty.
--
Thank you,
"Then said I, Wisdom [is] better than strength: nevertheless the poor
man's wisdom [is] despised, and his words are not heard." Ecclesiastes 9:16
#36
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First few pumps were dont by dealership until I lost the receipt and got sick of their high prices. They my regular mechanic did the last few which I bought aftermarket. OEM did not show any better performance. and the first one blew a few thousand miles out of factory warranty. |
Others posted after my initial shock statement, that some vehicles seem to
eat fuel pumps. I think after the second one I'd probably be looking at
possible things like input voltage levels, grounding, etc. You know - the
stuff that typically eats electric motors. Is this fuel pump different than
all other GM fuel pumps? I ask because it almost seems that it can't be.
The aftermarket is pretty good at identifying junk designs by the
manufacturers and coming out with a product that is genuinely superior, but
your aftermarket experience doesn't reflect this. This leads me to suspect
problems in the truck and not so much with the fuel pump.
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-Mike-
mmarlowREMOVE (AT) alltel (DOT) net
#37
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#38
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It is a problem when a company(lets call it G) tries to put as cheap a component in the car as possible Fo a long time starting with Ford they looked at cars thrown away and found out what component was still good Then they replaced that component with a cheaper one That has been going on for a very long time The component in the cars have been gradually been getting cheaper Then there is another company(lets call it T) that does the opposite They still look at cars that have failed and they try to replace the failing components in new cars with better components Slowly G gets worse and worse quality over the years Similarly then T slowly improves |
Not really, if tank is kept fairly full of fuel and not run low a lot,
the pump will last the life of vehicle.
--
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www.thesnoman.com
#39
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It is a problem when a company(lets call it G) tries to put as cheap a component in the car as possible Fo a long time starting with Ford they looked at cars thrown away and found out what component was still good Then they replaced that component with a cheaper one That has been going on for a very long time The component in the cars have been gradually been getting cheaper Then there is another company(lets call it T) that does the opposite They still look at cars that have failed and they try to replace the failing components in new cars with better components Slowly G gets worse and worse quality over the years Similarly then T slowly improves |
GM is still not as good as Toyota quality wise, but its not bad either. I
have a 2003 4runner, and it has been solid as a rock, my neighbor with a
2001 Envoy parks his SUV next to mine at the train station. Last year, we
had hail, and you can see my hood is peppered with indentations, his is not
(he was parked next to me). Shows there are certain things a little better
on GM.
#40
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GM quality did increase, mainly because of competition from Toyota. I know GM is still not as good as Toyota quality wise, but its not bad either. I have a 2003 4runner, and it has been solid as a rock, my neighbor with a 2001 Envoy parks his SUV next to mine at the train station. Last year, we had hail, and you can see my hood is peppered with indentations, his is not (he was parked next to me). Shows there are certain things a little better on GM. Ask him to check the crash test results for the Envoy. He won't like it. |
I still like some GM vehicles. I believe the Buck Lucerne should help their
sales. As for me, I would like a GMC Yukon Denali :-)
Ken
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