Question about 1997 GMC Sonoma

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Truck wont start without pouring gas into the intake recently blew the motor and have since changed it .. fuel pressure is good

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Check all vaccum hoses around throttle quadrant assembly

Posted on Sep 09, 2009

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Wont start unless you pour gas into intake then it cuts off after that gas is gone


Are the fuel injectors being turned on by the PCM ? Do you have a anti-theft system light lit on the dash ? How do you know fuel is getting to the fuel injector rail ? Did you hook up fuel pressure gauge ?

Nov 08, 2015 | Cars & Trucks

1 Answer

What would make a not start unless I pour gas into intake


Hi Clyde:
Since you mention "gas rail" I'm assuming fuel injected.
I'd check the fuel pressure in the rail. Should be around 40 PSI.
If pressure is OK then injectors not working. Time to check cps.
You know the spark side is OK since it will run.

Nov 08, 2015 | Cars & Trucks

1 Answer

93 geo tracker will turn over but wont start unless you pour gas in intake then will continue to run until you kill it. will not start back unless you pour more gas in intake.


Sounds like something is letting the fuel pressure bleed off after the motor is turned off. Can you monitor the pressure? (Requires adapters and gauge.) Trouble shooting will be a little different between the 8 valve or 16 valve motors. (The fuel injecton systems are different.) You might want to go to a Suzuki Forum. (Your Tracker is a rebadged Suzuki.)

Dec 17, 2012 | 1993 Geo Tracker

1 Answer

Hi, my 99 suburban starts then dies after 2 seconds. It runs when gas is added to the intake for as long as I pour it in. The fuel pump is new, and works fine. Pressure is good. the pump stays running...


"the pressure is good" doenst tell anything, if it isnt at least 60psi, its not enough to open the injectors. Its time to have a shop look at it, the rich o2 sensors may be because gas is poured in. Scan data needs to be checked while engine is off, cranking and running to diagnose the problem.

Dec 03, 2010 | 1999 GMC Suburban

1 Answer

Mazda MPV 1989 has good spark, good gas pressure but won't start. I disconnected one of the injectors and I tested for pulse but there's none. while driving, the van started feeling like loosing power. in...


YOUR BEST BET IS TO GO AHEAD AND REPLACE YOUR FUEL INJECTORS. BY POURING GAS IN TO YOUR INTAKE. YOU KNOW ITS GOT TO DO WITH YOUR FUEL SYSTEM. I TAKE IT YOUR CHECKING FURL PRESURE ON THE CHECK VALVE ON THE FUEL RAIL FOR THE INJECTORS. REPLCE THOSE AND YOU SHOULD BE GOOD. JAKE.B

Jun 16, 2010 | 1989 Mazda MPV

2 Answers

Truck will start only when gas is put in carburetor


Does it stay running when you get it started pouring the gas into the intake? If so I would replace the fuel filter or check the fuel line pressure where it goes into your intake.

If it doesn't stay running, I would look at replace the fuel pump.

Good Luck

Oct 10, 2009 | 1999 Chevrolet Tahoe

1 Answer

Wont start unless you pour gas into intake


Time for a fuel pump, but make sure chg. fuel filter and do a fuel pressure test. Thats the only sure way of knowing if its the pump is by the test.

May 31, 2009 | 1988 Lincoln Continental

1 Answer

99 Taurus wont start unless primed. Fuel pump is working


Check/Change Fuel Filter(s), PVC Valve & Emission Hoses
and/or
Gas that sits too long won't fire easily that's why we have to add winterize to our lawn mowers!
Try filling the tank with some high grade fuel cleaner additive. This stuff is like rocket fuel (about $10).
Also add a can of dry gas as you may have a lot of water and water vapor in your system!
Get a couple more cans of starter fluid too. (I always needed at least two to get my diesel running for summer)
Keep spraying and starting (It always took me at least a full can sometimes 2)
When it starts keep the gas pedal down and rev high for a good 5-10 minutes then see if it will idle.
If it still stumbles and falls consider adding another can of fuel system cleaner and/or dry gas.
Don't drain the tank as this usually just makes it worse by letting the bottom sludge stir up.
Never let your gas tank get too low as this will foul up your fuel system and always add fuel cleaner after every oil change (a must for fuel injection and cat. converter care)

Good Luck!
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Mar 08, 2009 | 2000 Ford Taurus

1 Answer

My mini vans motor blew up while i was driving it


I would do a fuel pressure test to see if the pressure is at least 37 psi. If you can place your hand over the intake, the vaccum from the engine must be pulling the fuel in which the pump can't satisfy.

Feb 16, 2009 | 1990 Dodge Grand Caravan

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