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I need to replace diodes on a gm marine engine for the fuel pump. Don't know witch way to install them

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The diodes are black ? should have a silver painted ring around one end the silver end goes away from direction of current flow

Posted on Aug 26, 2010

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Posted on Jan 02, 2017

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2000 chevy truck 3500 check wiring on fuel pump harness


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Jan 22, 2016 | Cars & Trucks

1 Answer

Is that a fuel pump cut off switch or a crash switch on a 89 chevy berretta


No.. Only Ford does that. The fuel pump will not operate if the alternator is not producing power. That is the cut off. If the engine is not turning the alternator in a crash but the key is on the pump stops. Make sure all 6 diodes inside your alternator are goo. before you go after the fuel pump.

Sep 23, 2014 | 1A Auto Parts 1989 Chevy Beretta GM Style...

2 Answers

Why will my1994 bravada not start?


line got clogged again? Check to see if it, the engine, is getting fuel . Go backwards for engine and see if fuel is gettign to fuel fiter, etc.

Aug 03, 2014 | Great Plains Industries Gpi& Fuel Pump

1 Answer

How much does it cost to replace a fuel pump for a 2005 chevy cavalier? Also, what recomendations do you have in terms of replacing certain items on the motor (example: oil pump, water pump, etc.)?


Your question is about the fuel pump well don't buy it from a dealer it will cost twice as much and an lower grade produts .Get a pump from a company called DELPHI .The tank has to come down on this vehicle but its a 2005 so that shouldn't be that big of an issue however when the tank is down you need to address any and all other problems with the system like rust on fuel lines and on the filler system as well as the tank it self . As far as the oil pump goes that is inside the engine . You would need to lift the engine to remove the oil pan to get at that so don't worry to much about that . As far as the water pump that is simple not a big hard job its actuly vary easy to do witch many things are not on your vehicle it costs 30 to 35 dollars depending ware you get it but let me tell you this ALWAYS KEEP THE ANTIFREEZE CLEAN AND SERVICED ON THE ENGINE OR YOU WILL BE SORRY YOU DIDN'T

Jul 19, 2011 | 2005 Chevrolet Cavalier

1 Answer

87 dodge d150 225 6 fuel pump was not getting gas changed it still no gas


I don't know about 225 six,but a 5.2 318 v8 ,and 5.9 360v8, and some other older modle Dodges, as well as some GM engines, have a ROD that rides on the camshaft
this rod needs to be pushed up into block out of the way, and held there (I usually use greese to hold the rod in place )
then the fule pump can be installed , if the rod isn't above the pump lever, the pump will not only not work, but can also become damaged
The rod works like a push rod on the pump lever
hope this helps

Apr 21, 2011 | 1987 Dodge D150

1 Answer

1999 chevey blazer code 0300, 0131


PO300 AND PO301 AND ENGINE MISFIRE CODES FOR #1 CYLINDER I HAVE A 96 BLAZER I GOT PO304 WITCH IS #4 CYLINDER IT TURNED OUT TO BE THE FUEL PUMP WASN;T SUPPLYING ENOUGH FUEL I REPLACED IT FIXED THE PROBLEM BUT ITS KNOT CHEAP TRY REPLACING FUEL FILTER LOCATED UNDER DRIVERS DOOR MOUNTED ON FRAME GOOD LUCK YOU REALLY DON;T WANT TO SCREW WITH THE FUEL TANK AND LINES ON THIS VEHICLE

Oct 10, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

Mariner 2 hp outboard engine (1985) not pumping water


My Mariner 8 has a thermostat fitted. It only pumps water when it heats to normal temp.

If your engine stops, it may be a fuel problem. Check the plug and go to Marine Doctor (a) fuel diagnostics, (b) spark plug diagnostics, sections. PK

Jul 26, 2010 | Boating

3 Answers

Upgrade 4.3 l carb engine to vortec TFI fuel system


It can be done but it is very time consuming.
I use an 87 Astro van intake sensors and computer on my 86 OMC.
After six years I am still playing with it.
Runs good and easy on gas.
Got lots of info from DIY-EFI.
You HAVE to change programing in the computer.
I am running a closed loop system with one oxygen sensor in the starboard manifold.
Your 94 computer is not as good for a boat because it also controls the transmission.

Just to give you an idea what your in for.

Apr 01, 2009 | 1994 Chevrolet S-10

1 Answer

1999 blazer 4 door 2wd auto 4.3 engine


Well In my opinion there where problems with those for some reason or another I don't want to speculate on that one. Always change the wiring harness because there so voltage sensitive, so always change that for one, and I have always installed a GM from the dealership because every time we installed a parts store pump they would 70 percent of the time come back within two years of being installed, But they were lifetime pumps, And nobody does the labor for free so it always ended up costing the customer money, Witch I never thought is right, The one's I have installed from GM never came back. So That is all I can do is give you my Opinion on this. So I sure hope I helps you out. Take care Bear001

Jun 16, 2008 | 1999 Chevrolet Blazer

1 Answer

Trouble with my 2006 chevy silverado 3500 duramax diesel


I had the same problem it turned out to be the injector pump witch gm covered it.

Jun 12, 2008 | 2006 Chevrolet Silverado 3500

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