Buy ACDelco MU1473 Control Module KitACDelco MU1473 Control Module Kit Product Description:
Product Description
MODULE KIT|F/TNK F/PMP
Customer Reviews
Most helpful customer reviews
1 of 1 people found the following review helpful.
By Wayne Kuban
I saved a LOT of money buying this fuel pump here for my '06 Hummer H3 so I won't quibble too much on this, but- The old original fuel pump only took about 3 seconds to reach maximum fuel pressure from a cold startup. You know, you just hold the key in the "On" position (not cranking) and it takes about 3, maybe 4 seconds before it stops buzzing because it's reached max operating pressure. This new replacement pump takes a solid 8 or 9 seconds of buzz time before hitting that max pressure and going silent. No biggie other than as a result you can't just jump in (in the morning) twisting the key from off to starter without waiting at least a few seconds to build up the fuel pressure enough to run. If you try it will either just crank or stumble a bit and die. The first start of the day needs at least 3, maybe 4 seconds of "On" time before cranking or it's a no-go. I usually wait for it to stop buzzing so I KNOW it's at max run pressure and will start right up. If that sounds like an issue to you steer clear of these. Personally I think it's a fair tradeoff for a half priced fuel pump (The dealer wants nearly double for just the pump).It could be possible that these half priced fuel pumps are "take offs" due to taking too long to build run pressure per factory specs, or maybe I just got one that needs a little more time. We're talking a few seconds more so it's not the end of the world, just noteworthy IMO. There is very little pressure bleed off once it's run, so jumping in and twisting the key right to start the 2nd, 3rd, 4th time of the day is no problem. Starts right up. Four stars.
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