Question about 1999 Ford Expedition

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99 expedition wont start

Seems to be fuel in the rails,not sure if I am getting spark,how do I check

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There are a couple of ways.I would remove a plug wire from one of the spark plugs,useing a spark tester that you can pick up at your local parts store insert it into the spark plug wire and have someone crank the motor and you watch the tester.

Posted on Mar 09, 2009

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An engine needs three things to run air, fuel, spark. So check to make sure air supply is adequate. Check fuel supply. Check to see that all air has been bled from the injector rails. Check wiring again . Make sure ground strap is reattached from firewall to engine. Pull off a plug wire and check for spark. If distributor was removed make sure it was reinstalled correctly and it is not 180 degrees off. Recheck all plug together connectors. Hope this helps.

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99 chevy express van 5.7 wont start after sitting for a day. fuel pump is new,it has spark,and no codes.


A new fuel pump can go bad but you need to know if the fuel rail has pressure or fuel in it the next day. Take something and press on the shradder valve on th fuel rail and see if you have any fuel. If not the fuel pump may be installed wrong.The fuel rail should have some pressure all the time for quick start up. I do not know if this helps but it is a start.

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1 Answer

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This is information straight from the repair manual.
1. Defective spark plugs. the gap is to wide to get a nice spark to fire the engine.
2. Defective coolant temperature sensor.
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I would check one of the first 2. The temp sensor is where i would start.

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1 Answer

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1 Answer

My 94 jeep cherokee started ran for a minute or 2 and stopped


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