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Old 12-24-2009, 03:47 PM
 
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Default Where is the fuel pump oil pressure switch in a 1999 blazer

Can anyone tell me where the oil pressure/ fuel pump switch in the 1999 blazer??
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Old 12-24-2009, 03:57 PM
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It doesn't have one. The pump will run 3 seconds when you turn the key on, run when it senses crank motion, run 3 seconds when you turn the key off.
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Old 12-24-2009, 04:02 PM
 
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thank you. Do you have any suggestion on my other question??

We have a 1999 blazer that has the fuel pump replaced 3 times in 4 months. the last time we beat on the tank and the truck started now it will not start. We have checked the replays, hot wired the pump and it ran but we have no voltage to the pump with the key on. Any suggestions?
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Old 12-24-2009, 10:11 PM
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check out this pic see if it matches your engine.
http://i11.photobucket.com/albums/a1..._Locations.gif
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Old 12-25-2009, 01:15 AM
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Quote:
Originally Posted by RonJon View Post
It doesn't have one. The pump will run 3 seconds when you turn the key on, run when it senses crank motion, run 3 seconds when you turn the key off.
Are you sure? OReilly shows oil pressure switches for the gauge and also one for fuel pump switch & oil pressure. http://www.oreillyauto.com/site/c/se...zer&vi=1378997
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Old 12-25-2009, 02:42 PM
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And parts stores are known for being right! HAHA!!

RonJon is spot on. There is only one oil pressure sending unit (as shown in the image link above) and that does not directly tie into the fuel pump control system like the older models did.
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Old 12-25-2009, 02:42 PM
 
 
 
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1999, 2000, 2001, 2003, 99, blazer, chevy, fuel, jimmy, location, oil, pressure, pump, switch, wre


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