New Jeep Owner w/questions

[ahunt01]

RE: CJ lock cylinder

Hey everyone, I'm a new happy Jeep Wrangler owner

! So far, I absolutely love my new Jeep. Heh, I've already been offroading, and am floored how good it is. Then again, I'm easily impressed, since the other car I own is a Civic :lol:

Anyways, I have a question. This vehicle, a 2005 Jeep Wrangler Unlimited, is brand new. Well, it has 500 miles on it now since I've been driving it like mad lol. However, I notice that when I go uphill/put the engine under strain that I hear a funky noise under the hood.

This noise sounds kind of like crickets, but higher pitched. I only hear it when I’m going uphill when the transmission downshifts into a higher gear, thus straining the engine. This chirping/ticking/vacuum noise goes away as soon as I let off the gas. I told the dealership and they were stumped. They said they need to look at it. They thought it may be related to bad gas, but were unsure. I was advised to burn the old gas out, and then getting gas from a different company. It’s bugging me, so I figured someone on here may be able to shed light on it. If it helps, I have an automatic transmission and use 87 octane gas.
Thanks for the help, and I look forward to having fun here.
Adam

 

[firemanharry]

Welcome to the family. Sorry I can't help with your problem but it's very hard to make a suggestion without actually hearing what it's doing. Besides, you're in an entirely different realm from what I am used to.

 

[anthonyp]

We've got an 2004 TJ 6cyl with a 5 speed. Although the noise you're describing is difficult to interpret, I can say that our Jeep doesn't like 87 octane...at all. It causes a lot of pinging under load. We switched to 89....and the noise went away.

 

[88Wrangles]

RE: Pictures

Run some higher octane fuel in it for a while and see if it goes away.

 

[ahunt01]

I think that's what I'll do. I've been searching the forum, and see other people just like anthonyp who say the 4.0 Wrangler runs bad on 87 octane. Funny how the manual recomends 87 and not 89. Who-da-thunk-it?
It's the same deal with my Honda. It dislikes 87, but is content with 89+. I hope it's the same way for my jeep.

 

[GaryMB]

higher octane never hurts

 

[mud4feet]

RE: Questions To Ask Yourself Today

higher octane never hurts

except in the wallet, of course! :lol:

 

[88Wrangles]

was this a wise choice?

except in the wallet, of course! :lol:

Oh how true that is . I took my dirtbike and went to the coast this weekend with a few friends and we went through almost 2, 100 gallon drums of 120 octane fuel. Now that really sucked :shock:

 

[TwistedCU]

RE: Re: RE: 4Low question...

Take it to the dealer and have them take a look. A new vehicle shouldn't be making noises of any kind. That's what warranties and lemon laws are for.

Welcome to Jeepz!

 

[Sparky-Watts]

Welcome to Jeeps!!! Yeah, I'd suggest what others have with the higher octane...had to do that in the old Toyota. BTW, I just saw a bright lime green Unlimited like yours yesterday in Wichita!!!!

 

[SenorCole86]

RE: CJ lock cylinder

This noise sounds kind of like crickets, but higher pitched.

This kinda sounds like a squeaky belt or something. Maybe it's not really noticable until you get until higher rpms. I imagine the dealers checked this if they did anything, but that's just my two cents.

 

[redrooster]

Keep running the 87. It's under warranty, make them fix it. You shouldn't have to paony up more money for 89 if the manual says to run 87. They only noise I've ever heard being related to fuel is pinging and it really doesn't sound like crickets.

 

[ahunt01]

RE: Sig question

Yeah I agree with you now. I have my doubts that it is gas related at this time based on the sound now.

I first noticed the sound when I was driving up the appalachian mountians, the engine was under alot of strain for quite a long time. The sound was noticable when the transmission upshifted into a higher gear (3rd or 4th?). When the hills became too steep and the jeep downshifted to a lower gear for more power, then the sound goes away.
Today I drove it again, but on flat roads. Again, the noise was not noticable until the jeep got in the last gear and then it starts.
I decided to test out a hill again. I figured that if it was gas-related, turning on the AC would make it worse. So, I turned on the AC and went up a real long, and fairly steep hill. It was so steep that the jeep didn't upshift, and no noise was noticable. Whatever is wrong, it seems to happen most in the upper gears... Any ideas??

 

[redrooster]

I have no idea. Take the air cleaner box off of it and drive it up a hill like that. If the sound is coming from the throttle body ior air cleaner box then either it will get louder (so you can identify it) or quit altogether. It's alright to drive it temporarily without the air cleaner or filter as long as it's not raining or dusty.

 

[Bounty__Hunter]

89 is a penny cheaper than 87 near here, I think it's due to it containing 10% Ethanol and being sold by a Farm Services company owned by GrowMark.

 

[Sparky-Watts]

RE: 1979 jeep cj question

89 is a penny cheaper than 87 near here, I think it's due to it containing 10% Ethanol and being sold by a Farm Services company owned by GrowMark.

It's anywhere from 3 to 5 cents cheaper here at one brand of convenience stores called Kwik Shop, if you have a card (not a credit card, an instant discount card) from their parent company Dillon's (owners of Kroger store chains).

 

[Inspector-Gadget]

Hi-Ya ahunt01,

Sounds like pinging or spark-knock to me.

In addition to some higher octane gasoline, you might try experimenting with different brands of 87 octane.

Experience tells me that not all brands of gasolines are equal as regards spark-knock and anti-cricket additives.

Regards,

Gadget

 

[ahunt01]

RE: CJ lock cylinder

Gosh I hope it's something simple like that. Lol my mom keeps teasing me, telling me not to sweat it because "that's what waranties are for." Ugh, still sucks though with a brand new vehicle.
As far as gas goes, if it was caused by the gas I've been putting in it, then wouldn't it knock/ping in any gear? What is odd is that it makes the noise in the higher gears only. I've put some massive strain on the motor in lower gear and it makes no pinging noises at all. When the transmission shifts up to the highest gear on a long straight away then it starts making the noise.
If it is the gas, when I drive the jeep until it's just about out of gas and then fill it up at a different station (thinking about trying Exxon), should the noise dissapear or would it take a couple times of re-filling to flusht the other gas out?

 

[TwistedCU]

anti cricket additives :lol:

 

[ahunt01]

What is spark-knock?