Super hot air pressure coming out of gas cap

Asked by GuruF3177 May 07, 2020 at 10:12 AM about the 1992 Dodge Caravan C/V Cargo FWD

Question type: Maintenance & Repair

I have a 92 dodge caravan it just quit running
and have fixed and replaced may parts . Now I
can get it to start only by flooring gas pedal it
starts but has a huge loud sucking noise  
through throttle  body,runs rough  and black
smoke out of tail pipe and now iam getting
super hot air pressure coming out when gas
cap isn't on I mean it's so hot that it would
burn ur skin cant figure this thing out and
either maybe u guy can help me or iam going
to junk it

1 Answer
101,635

KenF answered 4 years ago

Fuel can vaporize from heat and movement and can build up pressure in a tank that isn't properly vented. A failed EVAP system can prevent venting. The pressure build up can cause the tank or fuel lines to rupture or leak, which raises the chances of a fire. I would consider this vehicle very unsafe to drive. The black smoke, rough running, and fuel vapor pressure may be related but then you may have multiple problems. The only way to know is to conduct a thorough check of the EVAP system, fuel delivery system, and throttle body, which may or not be worth it on a nearly 30 year old Chrysler product.

Mark helpful

Your Answer:

Related Questions

  • Super hot air pressure coming out of gas cap 1 Answer

    I have a 92 dodge caravan it just quit running and have fixed and replaced may parts . Now I can get it to start only by flooring gas pedal it starts but has a huge loud sucking noise through thr...

    1992 Dodge Caravan C/V Cargo FWD

    -

    Maintenance & Repair

  • Air conditioner keeps kicking out 2 Answers

    Run for a while then kicks out

    2003 Dodge Caravan Sport FWD

    -

    Maintenance & Repair

  • van runs for short period then dies as if it is out of gas what is the problem? 5 Answers

    have replaced fuel lines,filter,pump,pressure valve sensors,map sensor,checked for broken wires,flushed fuel tank.

    1990 Dodge Caravan SE FWD

    -

    Maintenance & Repair

  • Distributor cap 7 Answers

    2005 Dodge caravan is having symptoms: rough idle, what sounds & feels like misfire, sputtering at idle. I suspect distributor cap since car has 190K miles and I don't think cap has ever been replac...

    2005 Dodge Caravan SXT FWD

    -

    Maintenance & Repair

  • HOW TO MAKE HEAT COME OUT OF BLOWERS FOR MY HEATER 1 Answer

    MY BLOWER ON MY HEATER WORKS, BUT NO HOT AIR.

    1995 Dodge Caravan

    -

    Maintenance & Repair

Shortcuts

Search Dodge Caravan Questions

CarGurus Experts

  • #1
    Paul
    Reputation
    2,070
  • #2
    tenspeed
    Reputation
    1,610
  • #3
    Dan Ritz
    Reputation
    1,530
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Dodge Grand Caravan
132 Great Deals out of 1,893 listings starting at $3,877
Used Chrysler Town & Country
4 Great Deals out of 110 listings starting at $5,755
Used Dodge Dakota
20 listings starting at $3,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.