Question about 2002 Jeep Grand Cherokee

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If i put regilar gas in my jeep knowing it takes premium, will it cause it to malfunction?

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Maybe not right away ,however if it says to use prenium  its usually bucause if you  use anything othr than that it will cuase premature detonation and could cause isuues later on down the road if you  use regular gas,if memory serves correctly it also plays havoc with sensors too gets clogged up with carbon deposits

Posted on Feb 20, 2009

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I just brought used 1995 oldsmobile aurora and it's about 125,000.00 miles on there and I went and put regular gas in there not knowing that it run by premium gas and now it rus and starts but as soon as...


Regular is not causing your problem, while it is recommended that you use premium fuel, it will adjust timing for regular-your issue is something else. If it stalls at a light, is there any check engine light? Things that might cause this are Idle Air Control valve, the Throttle Position Sensor-it might also just need a good old-fashioned tune-up, plugs, plugs wires, air filter, oil change. fuel filter-since you just bought it, you have no real way of knowing what is good and what isn't, so you should either find a honest mechanic or do the work yourself. I have a 2001 Aurora, they are great cars and have great engines, but they can be a challange to work on, so first determine if the basic stuff is good-air filter, clean the throttle body, if the plugs and plug wires are old, change them. that's a good start, from there if you need an IAC or TPS, local junk yards are full of them (they use Caddy components too) so you can save a lot that way.

Apr 08, 2011 | 1995 Oldsmobile Aurora

1 Answer

I have a 2004 Jeep Grand Cherokee Laredo with 80,000 miles on it. In the last two years since we've bought it, we've replaced the fuel pump 6 times -- all by the same mechanic! Four out of those six fuel...


Recall DateMAR 04, 2004

Model Affected2004 JEEP GRAND CHEROKEE

DescriptionON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH 4.0L ENGINES, THE CRANKSHAFT POSITION SENSOR WIRING INSULATION MAY CRACK AND EXPOSE THE WIRE.

ConsequenceIN THE PRESENCE OF MOISTURE, THIS COULD RESULT IN SENSOR MALFUNCTION, WHICH COULD CAUSE THE ENGINE TO STALL, INCREASING THE RISK OF A CRASH.

RemedyDEALERS WILL REPLACE THE CRANKSHAFT POSITION SENSOR. OWNER NOTIFICATION BEGAN ON MARCH 29, 2004. OWNERS SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.

Potential Units Affected14621

NotesDAIMLERCHRYSLER CORPORATION D13

Sep 16, 2010 | 2004 Jeep Grand Cherokee

1 Answer

What causes a gas gauge to malfunction?


THE PROBLEM IS ALMOST ALWAYS CAUSED BY GAUGES SENDING UNIT INSIDE THE GAS TANK FAILING.

Mar 08, 2010 | 1997 Jeep Cherokee Country

1 Answer

When i give it gas it makes a clacking noise but when i put super premium gas it helps the noise a little bit


check the motor mounts they might be weak causing a weird clacking noise that goes and comes

Feb 04, 2010 | 2003 Jeep Liberty

1 Answer

2001 Jeep Cherokee Stalls at times when driving as if it is not getting gas. Power steering and brakes go out and it makes me very nervous. Mechanic can find nothing wrong


the reason your power steering and brakes go out, is because your jeep doen't have enough rpm to keep your hydraulics up. you have variable power steering, and the rpms of your engine have to be high enough for the hydraulics to work.<p>
change out your pcv assembly first. you can by part of it at carquest or advance through motormite/dorman. you can buy the whole assembly at your chrysler/jeep dealer, but it's not cheap there.<p>
Your vehicle is starving for fuel. you have a condition called EGS(ethanol gas syndrome). take out your oxy sensor and clean with Berkline 2+2. The buy SEAFOAM and add it to at least 1/2 tank of Premium gas. Your fuel system is clogged with the goop and with water that this condition causes.<p>
Then you must change your fuel filter(because it's clogged with this also:fuel starvation)<p>
After this. add SF every 3-5000 miles to prevent this from happening again.<p>
Your valves are carbonized, your egr,pcv, and your oxy sensor are also carbonized. anf the corn in your fuel actually create excessive amounts of water. try it.

Sep 02, 2009 | 2001 Jeep Grand Cherokee

2 Answers

I just bought it and need to no which gas is best for it out of the three types. and if i put regular gas in, will that break it!


when you open the gas flap to put gas in it should say "unleaded fuel only" or " premium unleaded fuel only". If it says premium only use premium. If it just says unleaded then you can use normal unleaded gas. But some stations have a lower grade unleaded gas. Use 88 octane or better.

Jun 14, 2009 | 1994 BMW 3 Series

1 Answer

2004 jeep grand laredo MIL(malfunction indicator light)


Yes it can be caused by low quality fuel, and your gas cap not being installed properly. Best bet is the gas cap, so take it off and screw it back on. Then take your vehicle to autozone and hook up diagnostics to clear your MIL.

Sep 06, 2008 | 2004 Jeep Grand Cherokee

2 Answers

Service engine light came on after i put in gas other than premium


Your car does not require premium fuel. If you have a lead foot and live in a hilly area, it's possible you're causing knock. Best bet... check that your gas cap is tight.

Aug 20, 2008 | 1984 Cadillac Eldorado

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