Question about 1995 Nissan 300ZX

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Gas cap becomes very, very tight...why? - 1995 Nissan 300ZX

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When you do get it off does the tank vent really hard, you know lets out a ppfffttt sound? If not its probably just a dry seal. Put a little grease on the rubber seal.

Posted on Dec 25, 2008

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  • 116 Answers

SOURCE: Check engine light/gas cap will not stay tight.

yes the gas cap could cause this,also check evap. purge solenoid and hoses for cracks or kinks,the solenoid is on the inner fender and has 2 hoses, one to the intake and one to the canister, the most common cause of this code is a defective purge solenoid.

Posted on Apr 24, 2009

moparhart
  • 245 Answers

SOURCE: Gas cap warning light is on. Gas cap is tight.

If the cap is tight then you need to replace the fuel cap. the light will go off when cap is replaced

Posted on Jul 13, 2010

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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My 2002 taurus is hesitating so we tried gas treatment and replaced fuel filter...it's better but still hesitates and idles rough. What's next to look at?


When using gas treatment, it's a good idea to pull the spark plugs after 500 miles. Most engine / gas cleaners are effective but the impurities burn off on the plugs and they can become fouled. Another place to look is the distributor cap and rotor. A tiny crack in the cap is all it takes for an engine to run rough. Lastly, inspect the spark plug wires very closely. Look for any bare spots and ensure that they are tight both at the spark plug and at the distributor cap.

Jul 02, 2011 | Ford Taurus Cars & Trucks

1 Answer

I have a 1999 pontiac montana.it ran out of gas,i put 4 gal in it,and it wont start,is there areset button some where that stops power to the fuel pump or js it the fuel pump itself?


  • Very possibly could be the fuel pump. Often times when running the tank dry on pumps, especially ones that have been in the tank for a while and are partially clogged already, all the contaminants get caught up in the sock on the fuel pump and it becomes clogged and collapses and the pump fails.
  • When you turn the key to the on position do you hear the fuel pump hum? If not this could be the fuel pump relay and I would suggest to check this before tearing into the pump.
  • You may want to check that fuel filter too as they get clogged and prevent the vehicle from starting as well.
  • Make sure the gas cap is on tight as well. Sometimes a vehicle will not start if the gas cap is not on tight of is on crooked. Check the seal on the gas cap too for cracks and or rips/tears. Try a dab of engine oil around the gasket to help it seal and make sure it clicks a few times after it twisted on.
  • Hope this helps and thank you for using FixYa.

Regards, Tony

Jun 13, 2011 | Pontiac Montana Cars & Trucks

1 Answer

I have audi a4 and every time i put gas in it it wont start for about 5-15 minutes what may be the problem


check the seal on your gas cap if the seal is bad it will cause that issue
make sure the cap gets tight
just because the cap clicks doesnt meen its tight you might just replace the cap
they cost about 20 dallors

Dec 31, 2010 | 2006 Audi A4

1 Answer

P1456


code P1456 set when there's small leak in the fuel tank system.
Most known reason for P1456:
-Didn't tight fuel cap on until it click for more that 3 time after fueling up and drove the car too long with cap loose.
-or a bad gas cap.
I'll try tighting the gas cap.
clear check engine.
if code come back, replace gas cap and clear check engine light again.

Dec 15, 2010 | 2001 Honda Odyssey

1 Answer

Gas cap warning light is on. Gas cap is tight.


If the cap is tight then you need to replace the fuel cap. the light will go off when cap is replaced

Jul 13, 2010 | 2000 Dodge Caravan

2 Answers

Check Gas Cap alarm comes on and engine light is on


You gas cap is not on tight enough to seal causing the Check Engine Light to come on. When you tighten your gas cap you need to tighten it until it clicks at least 5 times, if it is tight than the seal on the gas cap may be bad. Replace with a OEM GM gas cap or a quality replacement that meets OEM specs.

Jun 16, 2010 | 2004 Pontiac Grand Prix

2 Answers

2005 check engine light comes on. had advanced


If the light is out, no worries. if it comes back on and the cap is tight, there may be other problems and a qualified repair shop will need to diagnose that for you. It may have a Evaporative Emission Leak.

Nov 10, 2009 | Chevrolet Cavalier Cars & Trucks

1 Answer

Error codes p0442 & P0455


Those are both Evaporative Emission Control System related.
442 is a small leak has been detected.
455 is a bigger leak has been detected.
Check all your connections, (electrical & vacuum lines) as well as check for any cracked, loose vacuum hoses in the system, as well as clean "O" ring on your gas cap well and threads in filler pipe & make sure gas cap is tight. Do the gas cap first & see if codes dissappear, but it may take a new gas cap. These codes commonly appear shortly after getting gas, due to cap not back on tight.

Oct 02, 2009 | 2001 Dodge Caravan

1 Answer

Check gas cap indicator light


Hi. this situation concerns a lose gas cap that you may have forgotten to tighten correctly during a recent fill up at your local gas station or, it could be that the original gas cap or replacement gas cap is not sealing the cap area correctly, preventing proper fuel pressure.

Check the gas cap to see if its tight and that it clicks when you turn it. make sure you turn until it clicks. this will ensure a secure fit.

Now, if you have just recently bought a new replacement cap, it may be the wrong fit and i would recommend purchasing the original replica form the dealership to ensure a tight fit.

Please rate and god bless:)

Apr 23, 2009 | Honda Pilot Cars & Trucks

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