Question about 1989 Chevrolet Suburban

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Engine hard starts then dies after a few seconds had it towed today after it kept blowing fuel pumpp fuses but it has fuel pressure at the carb

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Friend,
Your fuel pump is the answer. It does pump
enough fuel for the engine to cold start or stay
running when started. And as you have mentioned that it kept blowing fuses, means that there is either a short circuit or the pump is jammed and running very heavy,it needs attention of a qualified mechanic.

Posted on Aug 01, 2010

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Posted on Jan 02, 2017

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Disconnect the fuel line from the carb. Put the fuel line in a container and crank the engine for 4 or 5 seconds. You should see good squirts of fuel. Better yet put a fuel pressure gauge in line just before the carb. You should have 4-7 psi. It might be quick to get a gas jug a start a syphon to the carb. Dont forget to catch the fuel from the disconnected fuel line. If it starts right up its probably the fuel pump. If not the carb may need a good cleaning and rebuild. Check float bowl level. Check idle air screw adjustment.

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is the needle opeoning on the float in the carb? The fuel bowl should be about half full all the time. As fuel pressure flows into the needle & seat, it fills the fuel bowl until the float pushes the needle into the eat. Sometimes the rubber tipped needle can stick in the seat.

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Came to a stop. My van suddenly started idling hard and then the engine died and would not restart. It cranks but will not fire up. Could it be the fuel filter or pump? It was running fine and the problem...


It very well could be. You need to check to see if your vehicle is getting gas. You can spray engine started into the carb. If it starts and then dies, you have a fuel problem. You can also use gas. When a fuel pump kicks on, you a hear a wzzzz sound or buzz, for a second or two. You might have to open the gas tank cap to hear it. If you do, it is kicking on. If you are getting gas, it could be other things. Check all your fuses too. A bad fuse can cause this. I know how it feels to be broke down, this is why I try to help fast as I can. Hope this helps you.

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The dis fuse kept blowing so changed the coils that stoped but it still wont start


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One can also pressure check the fuel rail to see if fuel pressure is present. Check that you hear or sense a ticking from the fuel injectors as the engine rotates. If no ticking present, or the a noid light for the injectors connected to the injector harness is not blinking, then the computer may be bad.

If the engine doesn't start after introducing gas or starting fluid to the intake, then there is a possible ignition problem which can be caused by a bad module for the coil packs, that the coil packs sit on.

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sounds like fuel pump relay. next time it want start pull the ecm bat fuse for a few seconds see if it will crank then. knock sensor will not cause this. ecm bat fuse it works the fuel pump relay,fuel pump,injectors,ignition system an the pcm. also the oil pressure switch will shut down the fuel pump if oil pressure drops below recommended pressure . check the connectors on these things that not loose or corrioded.i think you will find the fuel pump relay is what this relay is the problem. this relay maybe in dash or under hood in the relay box.

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There's a few reasons you could be having this problem. Fuel pump, injectors, something electrical... ect..


I'd first off suspect a loose wire to the main injection harness, possibly after recent repairs? If it's a fuel pump, they generally start with it dying once, or being hard to start... then they become worse and worse, and eventually stop working altogether.

Next thing you could try, is test the fuel pressure by attaching a fuel pressure tester to the adapter on the fuel hose beneath the air cleaner assembly. If pressure is low, or non existent, it would be a problem among the fuel pump, fuel filter, and a kinked hose(not too likely).. Or some kind of fuse/electrical connection.

Also check electrical connections to the fuel pump, which i believe can be accessed under the rear seat...

Well I'm exhausted of ideas.... so give me some feedback, and GOOD LUCK!!

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