Has Anyone Had Their Fuel Pump/Cover Leak?

I tried to find a used pump assembly in good shape in all the scrapyards...They are ALL cracked, except for one, I found it 200km away, I'll have it monday. I've sprayed some PB blaster one the screws but it gets washed away by the huge amount of gas pouring from the top.

Can't wait to fix this.

Edit: NAPA and others don't have anything but the pump itself. Only the stealership does have it, for an easy payment of 245$.
 
Found a used complete pump assembly in perfect shape. Changed it today. Took me 6 hours. Freakin' screws. Had to drill them out, tap new screws in. PITA job.

But it was worth it.
 
Found a used complete pump assembly in perfect shape. Changed it today. Took me 6 hours. Freakin' screws. Had to drill them out, tap new screws in. PITA job.

But it was worth it.

Niiiice. I wasn't minded to do the job of drilling/chiseling the screws, so I just bought another used Mazda and swapped some parts.
Glad that you were able to drill out the screws and replace the pump housing!
 
Thanks for this tread, i very appreciate for change my body pump (in reality is a filter).

My car is a protg 5 2003.

Very hard to remove originals bolts, I replace by stainless 4mm X 8mm long.
 
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This finally started happening to my car. For the past week or so I could swear I smelled gas every time I was near my P5, I popped open the access panel today and DAMN it smelled rich in there! Oddly enough, the smell was only outside the car, I never smelled it inside.

This is after roughly 25min of brushing and one application of PB blaster (click for higher-res):


I'm surprised that there's actually still a little meat left on those screws, before I cleaned them you'd swear there was nothing left. I still need to get all the replacement parts as well as an impact driver so over the next couple weeks I'll just keep spraying that area with PB blaster and tapping the screws with a #2 philips and a hammer.

For those of you that did this job, how bad were the screws to remove? Ie. Was the corrosion limited to the heads or did it extend down into the threads in the tank?

Also, should I run the tank dry before I try pulling the pump or should I top it up? Something tells me it might be safer if the tank is relatively full (maybe 3/4), but that would be hella-annoying if I had to siphon the gas to drop the tank...
 
...Oddly enough, the smell was only outside the car, I never smelled it inside...

the access panel is designed to work that way :D

...For those of you that did this job, how bad were the screws to remove? Ie. Was the corrosion limited to the heads or did it extend down into the threads in the tank?...

i had to drill mine out. the stock threads do not extend into the tank. that being said, i still had to drill mine out. i picked the next size larger screw, then drilled and tapped.

...Also, should I run the tank dry before I try pulling the pump or should I top it up? Something tells me it might be safer if the tank is relatively full (maybe 3/4), but that would be hella-annoying if I had to siphon the gas to drop the tank...

it will be easier if there is less fuel in the tank. less gas to slosh around and get all over everything.
 
to repair it i'd put some epoxy putty
http://www.lowes.com/pd_23533-138-31270_4294935907__?productId=3132883&Ntt=oatey+fix+it+stick&pl=1tURL=%3FNtt%3Doatey%2Bfix%2Bit%2Bstick&facetInfo=

and it doesn't leak... maybe someday but if it work for few month ...it's better than buy a piece 260$

If you're going through the trouble of taking that thing apart, you might as well fix it properly. I ordered all the replacement parts for $120 from onlinemazdaparts, I think that's pretty reasonable.

The smell has gotten much worse over the past few days, I'll be glad when I finally get the parts.

Sadly I couldn't find any stainless M4 bolts locally, so I'll have to use normal zinc-coated ones. Not that I really care because that car ain't going to last much longer...
 
So I did it and was quite successful!

Before starting I made sure to unplug the power to the fuel pump and crank the engine for a few seconds to just get rid of any pressure in the lines. I didn't see anybody else mention this, but it probably saved me from a bit of a mess when disconnecting the high-pressure line...

Anyway, 5 of the 8 screws came out without any real trouble (with a sharp new #2 philips bit), 2 of the remaining 3 were removed with craftsman screw extractors, and for the last one I chiselled off the head and removed the remainder with a pair of vice grips (once the pump was out). Once again, PB blaster works as advertised :)

I tool some pictures along the way, the first one is is of the top of the pump body with all the screws removed (there are two screws I put back in to keep the fumes down). You can see the screw that I chiselled the head off of at the 2 o'clock position.
NC52y.jpg


Remember kids, always work in a well ventilated area ;)
olt0J.jpg


After removing the pump I put the ends of the gas lines into plastic zip-top bags (to keep the dirt away) and plugged the hole with a towel. The gas lines are very easy to disconnect if you use the two-screwdriver method shown in this howto. Also, if you can't get the connectors apart, give them a little soak in WD40, that always works for me.
JajDS.jpg


Old pump body, gasket, etc:
28gNt.jpg


New parts! I'd recommend buying everything listed on the first page, you'll probably end up damaging the "washer" when you remove it (it's not actually a washer, it's a metal clip that holds the low-pressure filter onto the pump). Swapping everything over is very easy, you just pop off the bottom plastic cap, remove the "washer", remove the low-pressure filter, and then slide out the pump. To remove the fuel level sender unit, you push down on a tab on the pump body then slide the sender unit down to remove it. The whole process is very straightforward :)

I'm not 100% convinced that the $20 rubber gasket for the high-pressure side absolutely needs to be replaced, mine still *looked* fine. If I had to do it again I'd still buy it for the peace of mind, but I suspect you could get away without changing it.
pzIKD.jpg


I could only get zinc-plated hex-top metric machine screws at the local home depot, they only came in one size which was roughly 1cm too long. So I ended up trimming each one with a dremel to make them fit, it isn't perfect but it works.
OKrHh.jpg


I took the FSM's recommendation and opted to "prime" the fuel system for 5 minutes just to make sure there are no leaks. You just short one pin on the DIAGNOSTIC connector and set the ignition switch to ON and the fuel pump will start running.
KK6r0.jpg


So what caused this stupid problem? I'm not 100% sure but this probably has something to do with it :P
dswHv.jpg


That plastic was cracked and about to fall off. Such s*** quality :(


I almost forgot, THANK YOU mtnbiker26 and everyone else who has contributed thus far to this thread, it's been very helpful.
 
Wow, wish I had joined this forum before I started the job. The fuel pump issue appears to be a common problem in the proteges. Was there ever a recall? I am thinking there should have been. I picked up my 2002 Mazda Protege5 about a month ago for booting back and forth to work (just under a hundred kms round trip). Got it for $2400 fully certified and e-tested with 209,000 kms on it. Not two days after driving it, got that pungent odor of good old gasoline. Of course all of the garages are saying right off the bat, 'It will be a $700 job', without investigating. Then one fine gentleman advised me of the trap door under the back seat, and there it was, a leaky pump. Like the previous posts, I spotted very corroded machine screws. I could not find bolt extractors small enough and was not sure what route to take. But then on good old Kijiji, i found a shifter knob, antenna and complete gas tank for $40. At least I could experiment with the tank and pump housing. I used a drill bit, slightly smaller than the bolt head and drilled down till the head popped off (on all 8 bolts) removed the pump assembly and removed the rest of the bolt with miniature vice grips which worked great (a little trickier going through the trap door on the attched tank). Found some longer stainless steel bolts at Brafascos, which is a fastener supply store here in Canada, and used 4 small washers on each. Plastered them in anti-seize like someone else did on here for future work. Used two small flat heat screw drivers to remove the fuel lines. Used a thin film of insta-gasget on the rubber seal. And everything worked fine for a couple of weeks, but now, low and behold, the issue is back but am well prepared to replace with a much newer part.
Does anyone know exactly what leaks in the assembly?
Is it the same place each time?
Is aftermarket a better plan?
Will this cost me $300?

thanks
Rob
 
Wow, wish I had joined this forum before I started the job. The fuel pump issue appears to be a common problem in the proteges. Was there ever a recall? I am thinking there should have been. I picked up my 2002 Mazda Protege5 about a month ago for booting back and forth to work (just under a hundred kms round trip). Got it for $2400 fully certified and e-tested with 209,000 kms on it. Not two days after driving it, got that pungent odor of good old gasoline. Of course all of the garages are saying right off the bat, 'It will be a $700 job', without investigating. Then one fine gentleman advised me of the trap door under the back seat, and there it was, a leaky pump. Like the previous posts, I spotted very corroded machine screws. I could not find bolt extractors small enough and was not sure what route to take. But then on good old Kijiji, i found a shifter knob, antenna and complete gas tank for $40. At least I could experiment with the tank and pump housing. I used a drill bit, slightly smaller than the bolt head and drilled down till the head popped off (on all 8 bolts) removed the pump assembly and removed the rest of the bolt with miniature vice grips which worked great (a little trickier going through the trap door on the attched tank). Found some longer stainless steel bolts at Brafascos, which is a fastener supply store here in Canada, and used 4 small washers on each. Plastered them in anti-seize like someone else did on here for future work. Used two small flat heat screw drivers to remove the fuel lines. Used a thin film of insta-gasget on the rubber seal. And everything worked fine for a couple of weeks, but now, low and behold, the issue is back but am well prepared to replace with a much newer part.
Does anyone know exactly what leaks in the assembly?
Is it the same place each time?
Is aftermarket a better plan?
Will this cost me $300?

thanks
Rob

The fuel pump body (also referred to as the high-pressure fuel filter) is what leaks. Order everything that's listed in the second post and you'll have everything you need to do the job. It should cost you no more than $150 from Mazda.
 
Thanks much CheeseHelmet, just got back from vacation in Virginia Beach, tried to order the parts down there but they
could not promise having them in on time before I left. I will be taking my printed list to an Ottawa dealer.
Cheers
Rob
 
I am guessing the $150 would be in U.S. funds?, the Mazda dealer here in Ottawa wants to charge me $261 for just the plastic Fuel Body GY01-13-ZE0, which is the actual part that cracks. The parts guy said, basically, its a Mazda exclusive part and they can charge what ever they want for it! (nice)
Has anyone else in Canada seen this?
 
I am guessing the $150 would be in U.S. funds?, the Mazda dealer here in Ottawa wants to charge me $261 for just the plastic Fuel Body GY01-13-ZE0, which is the actual part that cracks. The parts guy said, basically, its a Mazda exclusive part and they can charge what ever they want for it! (nice)
Has anyone else in Canada seen this?

same thing happened to me last week. CDN dealer wants crazy prices, i ordered mine in the states and had it delivered to the door for under 70$. onlinemazda has all the parts you need
 
I am guessing the $150 would be in U.S. funds?, the Mazda dealer here in Ottawa wants to charge me $261 for just the plastic Fuel Body GY01-13-ZE0, which is the actual part that cracks. The parts guy said, basically, its a Mazda exclusive part and they can charge what ever they want for it! (nice)
Has anyone else in Canada seen this?

That's retarded-expensive, and it's not a "Mazda exclusive part", Beck/Arnley makes an aftermarket version for $30 iirc. Did you make sure they were selling you just the fuel pump body and not the whole pump assembly? I ask because I remember the whole pump assembly costing about that much...
 
That's retarded-expensive, and it's not a "Mazda exclusive part", Beck/Arnley makes an aftermarket version for $30 iirc. Did you make sure they were selling you just the fuel pump body and not the whole pump assembly? I ask because I remember the whole pump assembly costing about that much...

when i went to the dealer, it was just the assembly for the retarded price. that is why i bought it via the US
 
thanks guys u have resolve my problem easy instelation too!thanks a millon i had changed the hoses the gasket the clips to lock the line and the tank before i joined the club
(sssh)
 
These replies are great guys!! Looks like I will be definitely ordering from the States. Not sure if my epoxy solution will survive, I still smell a hint of gas.
 

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