Re: Unexpected benefits - fuel pump replacement

[Andrew Duane USG/PE <duane@zk3.dec.com>]

Hairy green toads from Mars made Steve Manning say:

> A few days ago I replaced the in-tank fuel pump on my '90 200tqw.  It was
> making the 'bees-in-your-back-seat' sound...some said it would last a long
> time that way, others said replace it immediately.  Well it was pretty easy
> to do other than the prospect of blowing yourself up, but anyway....so the
> new one is nice and quiet.
> 
> However, as a result of replacing the pump I noticed some other unexpected,
> positive benefits:
> - car starts *much* quicker, hot or cold
> - off-idle throttle response has greatly improved
> - overall, the car seems to run more smoothly
> 
> I'm not sure why unless fuel pressure was marginal with the old pump.  But
> the benefits were immediate and real...so if your pump is getting noisy,
> replace it and maybe you'll fix some other problems........SLM

ABSOTIVELY!

When I replaced my marginal fuel pump (OK, so marginal it failed),
my car ran better, started better, idled better, and was a lot more
pleasant to be in.

I just replaced Angela's fuel pump (this time before it failed),
and got the same result. Also, her mysterious off-throttle stalling
problem has disappeared.

These fuel systems are very sensitive to correct pressures. Marginal
fuel pumps don't keep the pressure where it ought to be. Clogged fuel
filters (which usually get replaced w/pump) cause this, too.

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Digital Equipment Corporation		(603)-881-1294
110 Spit Brook Road
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too heavy to care.