need help w/ diag. and replacement of fuel pump - Team Camaro Tech
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post #1 of 5 (permalink) Old May 21st, 01, 06:45 PM Thread Starter
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joseph l clance
 
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69 camaro 350. Noticed a noise from fuel pump. Thought it was one of the belt driven assemblys, but by placing a long wooden drift to my ear and on all components, the fuel pump was the source of the noise. It is not very loud but it is noticable w/ the hood open. Any ideas on what is failing in the pump. Noticed fuel consumption increased lately, however not smelling gas in the oil, but the engine pulls 17" of vacuume at idle and may sniff trace gas out of the block ( beyond the sensitivity of my nose).
Any tips on replacement unit. Thinking of the GM replacement,(it has operated >30yrs). ANy experience, tips in the repacement procedure of the fuel pump is greatly appreciated.
thx
joe c.
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post #2 of 5 (permalink) Old May 22nd, 01, 01:07 AM
 
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ive never had noise but that doesnt mean anything. gm pump will more than likely cost you a bit more $$$ than your local parts store. and more than likely the auto parts store pump is made by the same manufacturer so no real difference here, unless you need one for oem/original. replacing it is just two bolts. be sure to compare the new with old in regards to where fittings are. just be sure after removing the pump to put a gob of bearing grease on the fuel pump rod (this sticks up into the block and rides against the cam) and push it up into the block. the grease will hold it in place while you put the pump back on, make sure the fuel pump arm is resting against the rod, and bolt it back up.
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post #3 of 5 (permalink) Old May 22nd, 01, 05:57 AM
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There is a bolt, it will be the second from the bottom. It goes all the way thru into your pump rod.

You can put a bolt in there to hold the pump rod up. Be sure and take that bolt out after installation of the fuel pump is completed.

Then put a shorter one back in the hole. It will vent air in and out if you dont.
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post #4 of 5 (permalink) Old May 22nd, 01, 06:32 AM
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The bolts he is refering to are on the front of the block down where the fuel pump bolts up. You can use one of the pump bolts to hold the pushrod up while you get the pump partially installed. Then just replace it with the shorter bolt and finish bolting up the pump. Make sure the gas line fittings are the same on the new pump.

Mark

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post #5 of 5 (permalink) Old May 22nd, 01, 05:52 PM Thread Starter
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THanks all. I'm going to replace it at the next oil change. But with these gas prices, it may be a while (keeping gas in the tank and car in garage)
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