Raw fuel and gray smoke coming out the exhaust

20

Asked by Jan 24, 2014 at 10:58 AM about the 1994 Dodge Ram 1500 2 Dr Laramie SLT 4WD Standard Cab LB

Question type: Maintenance & Repair

Hello everyone.. I'm a newbe here and hope some of you experts on this site could help me out with this problem I have with my 1994 Dodge RAM 1500 5.9 liter 4x4. I have raw fuel coming out of the passenger side exhaust. This truck has duel exhaust so we track it down to # 8,6,4,2 cylinders. This truck has been ran with the # 4 injector wire off for sometime and just now found it off. Truck was running ruff at low idle so installed new plugs and wires and was going to clean injectors and found the wire off. Repaired the wire and plug it back in to the #4 injector and now I'm getting lots of grey smoke and raw fuel out the exhaust. Removed injector for inspection and it is not stuck open and works fine. Pulled the plugs on #4 and is was soaked. Checked the fire on that cylinder and it is good. Truck runs good at high rpms going down the road but I did noticed it is running a little hotter than normal. This one got me stumped.. Thanks in advance.

3 Answers

20

I forgot to add..the oil level shows a half quart low and hasn't change since we been working on it so there is not much fuel getting in the crankcase. Also # 4 cylinder is getting good compression. We are getting 2.4 to 3 volts to #8 6 4 but # 2 we are getting 14 volts when truck is running. Leaning more to computer problem. If anyone has A better idea than me, please let me know.. Thanks

2 people found this helpful.
122,635

If plug was soaked that tends to make me think that for some reason it was not firing or was getting to much fuel. I might would try a another plug and see what happens. Then try swapping the #4 injector with another one and see if the problem follows the injector or stays at the #4 cylinder. If it follows the injector replace the injector. If stays at #4 cylinder double check plug, plug wire and injector pulse.

20

Thanks for the help dandy... Yes we tried all of what you suggested earlier before I posted the problem and still had lots of grey smoke and raw fuel. The problem didn't follow the injector. We replaced the brain box and check voltage to the #2 cylinder and we are getting 3,8 with the truck running. Plug the injector connection back on the fuel rail and fired up the truck and no gray smoke or raw fuel. Check engine light even went away.. Thought we might have to flash the used brain box we installed but so far no strange codes have showed up.

Your Answer:

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 9,362 nationwide Ram 1500 listings starting at $1,995.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,050
  • #2
    pudgybear
    Reputation
    6,700
  • #3
    dandyoun
    Reputation
    6,280
View All

Related Models For Sale

Used Ford F-150
2,300 Great Deals out of 208,485 listings starting at $1,300
Used Dodge Ram 2500
152 Great Deals out of 4,826 listings starting at $2,200
Used GMC Sierra 1500
712 Great Deals out of 60,946 listings starting at $1,395
Used Toyota Tacoma
425 Great Deals out of 47,661 listings starting at $2,994
Used Dodge Dakota
79 Great Deals out of 3,045 listings starting at $1,495
Used Ford Mustang
266 Great Deals out of 37,717 listings starting at $1,350
Used Chevrolet Tahoe
522 Great Deals out of 37,993 listings starting at $1,243

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
35 Great Deals out of 1,254 listings starting at $5,000
2009 Dodge Ram 1500 For Sale
39 Great Deals out of 954 listings starting at $5,200
2008 Dodge Ram 1500 For Sale
56 Great Deals out of 1,339 listings starting at $2,550
2007 Dodge Ram 1500 For Sale
59 Great Deals out of 1,313 listings starting at $3,500
2006 Dodge Ram 1500 For Sale
58 Great Deals out of 1,020 listings starting at $3,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.