pat056

Is there a good DIY here for replacing fuel pump on my 93 964? I did a search but couldn't find one for my car.

garrett376

Jack up front right; remove 6 or so 10mm hex bolts to remove cover panel; undo three 10mm hex bolts to free the pump; undo two fuel lines while getting gas all over you if your tank is full; undo two wires - done; plug in the new pump, hook up the lines, and bolt it in. It's quite easy - just removing the gas is the hard part depending on how messy you want to be.

Marc Shaw

[sarcasm]

jack up front right and bend jack plate
remove 5 or so 10 mm hex bolts and strip the 6th bolt
spend an hour trudging to Sears to get a bolt extraction kit and remove the 6th bolt
pry off rusty cover panel and shower your face with rusty particles of metal
spend 10 minutes in the bathroom rinsing rusty particles out of your eyes then 30 minutes cleaning the bathroom
take 15 minutes to look for eye protection and then give up
undo 2 10 mm hex bolts and break off 3rd hex bolt
spend 2 hours drilling out the broken hex bolt to free the pump
undo two fuel lines then remember you should have emptied the gas tank
undo two wires and watch the spilt gas catch fire
remember you should have disconnected the battery
run for a fire extinguisher and return in time to see the flames engulf your garage
Cost of DIY pump change: $53 562.89

Cost of getting your mechanic to do it as it is a nasty job: priceless.

[/sarcasm]

Marc

ormy

Sounds like what I'd do

MisterRisky

That's a great reminder to unhook your battery when dicking around with the fuel supply! Nice mental image, Marc.

Gus

Just found these post - funny, just too funny - but lot of good lessons learned in the post.
Know all our cars are getting old, I have not replaced fuel pump or fuel lines from tank back. Anyone have an idea of life cycle - my car is pushing 28 years and don't want a fuel issue away from home or at DE.
Car is garaged and only has 87K on it, but everything is getting old and plastics are getting brittle.

Goughary

Gus, the fuel line that runs from the pump to the engine bay has a soft line in the engine bay that is a few inches long- no one replaces that because it's such a pita to get out. And so that's one of the main causes of engine fire in the end.

Put your hands behind the air box and feel the hose, and then feel the newer hoses that have been replaced on top of the motor (if they aren't original) - you'll be shocked at the difference. That one in the back is usually rock hard.

As for the fuel pump- i have no comment there. Mine has never been touched and still works for the moment. I'll be interested to hear other comments.

PelicanParts.com

If anyone is looking for a DIY on this, check out the link below. Very similar process on the 964.

https://www.pelicanparts.com/techart...eplacement.htm

Gus

Goughary - thanks for info - i’m In about the same boat as you. Will replace soft line before filter. But, debate is when do you replace fuel pump. Guess I will just order spare and have on hand.
Would like to up date engine bay fuel lines to the 993 lines, but replace with aeroquip stainless lines/fittings.
Thanks for info

Goughary

Fwiw. Peter Dawe recommended against using stainless wrapped lines for the fuel lines. Was certain they wouldnt last as long as oem. I like the look, but have no interest in doing fuel lines every few years. So I'm taking his advice on that one.

As to a fuel pump. I'll probably sock one away as well. But I'll probably leave mine in until it's causing a real problem or it dies. Seems to function fine. If there is a good way to test the function....and we discover that here, happy to do a test, but at one of those "if it ain't broke" situations...