Question about 2003 Chevrolet S-10

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2003 s10 no fuel pressure, changed fuel pump and relay and still no fuel pressure

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6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Location under hood for fuel pump relay on 2002 Mazda Millenia S

JUST RELEASE THE PRESSURE AT THE FUEL PRESSURE TEST PORT ON THE FUEL SUPPLY RAIL THAT SUPPLIES THE INJECTORS, IT IS A METAL VALVE LIKE A TIRE VALVE, THAT IS THE FACTORY RECOMMENDED METHOD..

Posted on Mar 11, 2009

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SOURCE: fuel pump relay gets hot on a 1995 s10 blazer

Most likely a bad connector on relay or the fuel sock needs to be replaced. if the sock is plugged it would cause the fuel pump to work hard and cause it to heat the relay and make it hot and removing it will cause it not to run. check the connectors to the relay see if they are opened up in the female socket if they are use a dental pick to close them up with. otherwise replace fuel pump and sock at that age with the alcohol in fuel it's killed the pump and sock.

Posted on Jun 13, 2009

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SOURCE: 1994 S10 Blazer Fuel Issues?

YOU SHOULD INSTALL ORIGINAL GM PART AND NOT AFTER MARKET. I INSTALLED 2 AFTER MARKET PUMPS THEY WORKED FOR A WHILE THEN STOPPED. THE PROBLEM WAS NOT ENOUGH PRESSURE, SINCE I INSTALLED GM PART NO PROBLEM.......

Posted on Jun 27, 2009

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SOURCE: 1987 chevy s10 2.5l tbi will not start. changed

That eliminates the crankshaft and camshaft position sensors. Have you checked the fuel injector itself for an open winding or stuck valve plunger? There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. But at least the engine should try to run if poorly. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. You should hear a click from inside every time you touch 12 volts. If not, replace it. If it does, it may be plugged with debris. Try blowing through it in reverse with compressed air.

Posted on Jul 17, 2009

  • 113 Answers

SOURCE: fuel pump relay hot

You could have a loose connection going to the relay. Loose or bad connections cause amperage to rise causing heat to rise. Check the plug holes where the relay pins plug in. Check for blackened metal or melting plastic around the pins. If so, check under the relay box for burnt wires, etc. and repair.

Posted on Aug 07, 2009

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1 Answer

2003 Buick Lesabre Custom Need to change the fuel filter, but cannot find the fuel pump relay to remove the fuel pressure. Relays under the hood do not list one for the fuel pump. Any idea?


You can release the fuel pressure at the fuel service port on top of the engine. Be sure the engine is cold and you hold a good rag under it. No need to remove relay if key is off.

Sep 24, 2010 | 2003 Buick LeSabre

1 Answer

My 2000 chevy S10 wont start I changed the battery and it ran fine for 2 days now it will turn over but won't start


Check Fuel Pressure. First turn key to on position (without starting) and listen for the fuel pump motor. If no motor sound, your fuel pump is not working. Check fuel pump fuse and relay. If fuel pump works, check for pressure at the fuel rail (schrader valve on fuel rail for pressure testing). If no pressure, or not enough, fuel filter might be clogged or fuel pressure regulator may not be working properly. IF fuel is not the problem, start checking electrical, such as ignition control and proper spark to plugs.

Aug 14, 2010 | 2000 Chevrolet S-10

1 Answer

1995 s10 pickup 4wd just replaced fuel pump, won't start.


replace the wireing harnes to the fuel pump gm had problems with them cost around $15 to 26 at autozone

Nov 18, 2009 | 1995 Chevrolet S-10 CA Edition

2 Answers

1994 S10 Blazer Fuel Issues?


are you sure the pump you installed is not defective it does happen more than you can believe. If you can run a power to the pump hot line or jump the relay and have a ear to hear if it is pumping, this is what I would suggest.. Good luck

Jun 23, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

Fuel Pressure Relay location


Hello, There is no fuel pressure relay. If you mean fuel pump relay, you can find this by opening hood, look towards driver's area, on the firewall just below the cowl vents you should see a relay with 5 wires going to it.
CYA, Gator241

Feb 09, 2009 | 1993 Chevrolet S-10 Blazer

3 Answers

My 1996 s10 blazer wont start it has new fuel pump and has spark. I changed the spider but still wont start


Like Kristisamp Said check the Fuel pump relays, they are little black box shaped fuses in the glove box, there are 3 of them, I think there may be a cover over them so you can see it......
Take the cover off and there you go......
I have a 96 blazer 2 door that had the same problem, I repalced thes relays and Bam!!! fired right up........

Jan 07, 2009 | 1996 Chevrolet Blazer

1 Answer

1987 chevy r10 won't start


Assuming it is a fuel problem I checked at the carb. to be sure no gas was being pumped through the filter located under the power steering pump then the fuse on my 87 s10 was the ECM fuse.then check for the relay to click and the had to replace the oil pressure sending unit and mine started right up..the oil pressure must be about 4 lbs for the Pump tp operate...I loosened the fuel line to ck. for fuel but thats living dangerously...a pressure guage would be on the safe side......

Aug 19, 2008 | 1987 Chevrolet R10

1 Answer

Fuel pump relay


Fuel pump in back in the gas tank.

May 29, 2008 | 2003 Chevrolet Tracker

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