Question about 2000 GMC Jimmy

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2000 jimmy wont start. replaced flow mass senser cuz when we tapped it it idled better. turns over but wont start. fuel pump putting out 60psi. has fuel in the tank. check engine lite is on.

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Have truck scanned most auto stores such as auto zone / advanced do this service for free check ur local area the code will give u what the problem is so u can repair ur vehicle tapping the sensor and working better shows more of a connection problem than the sensor it self usually the mass sensor can be cleaned

Posted on May 05, 2010

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I have 2000 gmc jimmy it wont start sometimes it has me clueless


It could be the ECU,but I am gonna put my money on the fuel pump and say its a fuel issue. Have you changed the fuel filter? the most common problem with GMC's is the air flow mass meter. Spray it with some air flow mass meter cleaner and see if that helps.

Dec 01, 2013 | 2000 GMC Jimmy

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2001 gmc jimmy acceleration problems


Have you checked base fuel pressure at the injectors ?
Base fuel pressure when cranking or at idle should be at least 60psi or more.

May 14, 2013 | 2001 GMC Jimmy

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96 jimmy just lost power while driving 60 mph & wont start. Replaced fuel pump about 1 month ago.


CHECK YOUR MASS AIR FLOW SENSOR IS CHECK ENGINE LIGHT ON LET ME KNOW OK

Nov 18, 2012 | 1996 GMC Jimmy

1 Answer

2000 jimmy will crank but wont start, fuel put is


Then it is the fuel pump. Can you hear the fuel pump come on if not that is what it is. That is why when you put fuel in the intake it started. Good Luck.

Nov 10, 2009 | 2000 GMC Jimmy

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sounds like your throttle positioning sensor is not set right so i would undo the two phillips heads that hold it and turn it till the idle doesnt fluctuate should be turned most of the way to the front of the truck. Also check your idle screw that throttle body could be set different.

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Lack of power and rough idle


Is your "check engine" or "service engine soon" light on? Lacking power is usually an emission system problem, for instance possibly a bad EGR valve or mass air flow senser. O2 sensers are common to fault but normally doesn't cause power loss usually causes alittle rough idle. Could even be a pluged catalic converter to. have the truck plugged into a scanner, that will tell you the trouble codes and fault info.

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Did you change the fuel filter?

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1 Answer

97 jimmy wont start


If it starts with starting fluid, this means the firing and electrical is fine,however, its not getting fuel. I suggest trying the fuel filter first,but, its probably going to be the fuel pump.

Dec 29, 2008 | 1997 GMC Jimmy

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2000 Mazda 626


when the car is hot and will not crank have someone get under the car and TAP the gas tank moderately hard with a rubber mallet, if this helps start the car you have an intermittent problem with your fuel pump. If your not getting gas properly your problem will exist in your fuel system if you are not receiving a ecm code. So, it could be the pump, mass air flow, or injectors. I have replaced mass air flow sensors and received a damaged sensor or damaged it myself, but if you have a decent mechanic who knows what he is doing he can hook up to your computer and tell if it is your mass air flow.

Jul 18, 2008 | 2000 Mazda 626

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