I have a 2003 chevy venture 3.4l and the injectors will not work once the van gets hot. i can wait for a while and let it cool off and then it will start. ive replaced the ing control module and both crank sensors. how do i check to see if injectors are working right with out taking off upper intake?

SOURCE: Thermostat in a 2003 chevy venture van

the bottom boult is hard but can be done need to use a 10 or 12 stubby wrench and take a pry bar and lighty pry heat shild away to get bottom bolt dont need to take it out all the way just loosen and slide down

Marvin

• 85242 Answers
• Posted on Oct 20, 2008

SOURCE: 2000 chevy venture cooling fans not working issue

The PCM may be defective.

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Does your battery go dead?

SOURCE: Thermostat in a 2003 chevy venture van

no you dont need a special tool you have to take the throttle body off it makes it sooooooo much more simple.

SOURCE: 2003 Chevy Venture misfiring

The injector is a good possibility, although you should check for spark in the wire first, as the electrical is the weakest link in the system. Put a spare plug in the end of the wire with the plug resting on metal, then have someone crank the van to see if you have spark that far, test and replace spark plug, (do not get shocked!) then look into a new injector or a good cleaning.