Question about 1994 GMC Jimmy

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Fuel injector is staying open - 1994 GMC Jimmy

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  • Anonymous Sep 09, 2008

    #1 intake port cleaner than the rest, white smoke from the exhaust with a bad fuel smell #1 cylendar spark plug dirtier than the rest, car hesitates, hard to start, rough idle, and has a deadspot in the timing

  • bbbrrreee21 Jan 31, 2009

    Fuel injectors are pluged.... Where are they located??

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If its a 4.3 vin w motor try checking the plastic fuel feed & return lines for cracks under the upper air plenum.they feed the spider injector inside the intake.

Posted on Feb 12, 2009

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2003 ford ranger 4.0 2 wd has raw fuel leaking from exhaust


This is usually due to a defective fuel injector. If the injector stays open, once the vehicle is shut off, all the remaining pressure in the fuel system will drain fuel through the injector, fill the cylinder, and overflow through the exhaust valve into the exhaust lines. The downside is that this injector could also be causing fuel to get into the engine oil by leaking around the piston rings. This will greatly reduce the oil's ability to lubricate and increase engine wear immensely. This issue needs repaired ASAP. Have the injectors checked, and any defective ones replaced. Have the oil and oil filter changed as a precaution as well.

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2004 jeep grand Cherokee fuel injectors stay open


If not pulsing, could be a bad pcm. The computer grounds the injectors internally for a split second to pulse them . If trash or debris is not making them stick open, buy a "noid light" for checking injector circuits. Plug it in to #1 or #5 and crank engine over: if circuit is working right, noid light will be blinking. If light is on steady, computer is not interrupting ground to cause pulsing.

Jul 11, 2013 | Jeep Grand Cherokee Cars & Trucks

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Car will not start without starting fluid


Try smothering the injector opening with a rag after you get it started. Sometimes you can use your hand to cover the opening. Just like priming a lawn mower motor or something like that. This will send suction to the fuel pump. If this does not work you may have a bad fuel pump or bad fuel pump relay.

Apr 23, 2013 | 1992 Chevrolet Camaro

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Dead cylinder number 2 bad injector number 2


use a digital volt meter,put it on the ohm scale check number 2 fuel injector should be 11 to 16 ohms if not reads zero fuel injector faulty.if numbe 2 fuel injector okay.use noid light hook it to fuel injector electrical connector with fuel injector disconnected and see if pcm is firing the fuel injector noid light should blink when cranking the engine.if light steady pcm not firing 2 fuel injector,if noid light dont light up.there is a open in the wiring connector 2 fuel injector 2. if fuel injector okay,check spark plug, carbon foul you have a bad ignition coil or wire if you see oil on spark plug you have worn piston ring or leaking valve guides allowing oil to foul out spark plug.do a compression test check compression to see condition of the cylinder.

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Fuel injector is staying open


Does it stay on even if you disconnect the plug from it? If so you need a new injector. This condition is caused by dirt jamming the pentile valve.

May 17, 2012 | 1998 Chevrolet Malibu

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The sparks plugs are sopping of gasoline in my vw passat 1998 .


Sounds like your fuel injectors are leaking. To fix this, change the o rings on the fuel injectors. Hope this helps, James Booth. Please rate. :)

May 20, 2011 | Volkswagen Passat Cars & Trucks

1 Answer

Trac off light came on and off then stayed on while driving, p0203p0204 p0300 codes when scanned with little machine better read open circuts in both injectors loss of power


P0203 - Injector Circuit Malfunction Cylinder 3

Powertrain Control Module (PCM) or Electronic Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The PCM/ECM will trigger the P0203 code when the resistance or voltage drop at the injector #3 is out of specifications.

Causes:
- Open or shorted wiring harness to the injector #3
- Bad injector #3
- Bad PCM/ECM

Solutions:
- If damage, repair injector wire harness or connector
- Replace injector
- Replace PCM or ECM


P0204 - Injector Circuit Malfunction Cylinder 4

Same info as the P0203 DTC


P0300 - Random/Multiple Cylinder Misfire Detected

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crankshaft position (CKP) sensor (POS) signal to vary, Powertrain Control Module (PCM) or Electronic Control Module (ECM) can determine that a misfire is occurring.

Causes:
- Improper spark plug
- Insufficient compression
- Incorrect fuel pressure
- The injector circuit is open or shorted
- Fuel injectors may be faulty
- Intake air leak
- The ignition signal circuit is open or shorted

Solutions:
- Perform Injector Service
- Replace Spark Plugs
- Replace Injectors
- Replace Ignition Coils

Feb 03, 2011 | 2001 Pontiac Sunfire

1 Answer

#4 injector is staying on at all times when running.


this can be cuased by only 2 things, the injector is defective and the other is the ground lead to the injectoris shorted to chassis of car, if u unplug the injector and fuel still pours in then the injector is defective, if it doesn't pour fuel in then the gound side of the injector is shorted to chassis of car or the Powertrain Control Module (PCM for short) is defective and holding the injector open, this is very uncommon, the injector sticking is the common problem.

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1993 nissan Altima fuel injector staying open


what readings do you get on another fuel injector?  Swap injectors and see what happens..you may have a stuck injector.

Mar 24, 2009 | 2002 Nissan Altima

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