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Isuzu Rodeo Ticking And Knocking

5 messages,  Last post on Nov 06, 2009 at 9:12 PM

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#1 of 5 Bad Ticking And Knocking by spankondrums Apr 15, 2009 (6:16 am)
I posted this on another forum, because some guys were having the same problem, but I never got a answer. So I am posting it here.    I have a 1993 Isuzu Rodeo 3.2 I just changed the timing belt idler pulley and the tension pulley, it went great for about 3 weeks then about 4 days ago got this sound like the ones in those videos on page one. The thing already had tapping, but this extra noise is more than I can bear. It still has great power it has not lost a step, when it comes to power,I really hate to have to break this thing down again. But it does sound like those videos, I wonder if they could have sold me a faulty tension pulley and arm. It has 173.000 miles on it and the body is still clean it is not banged up at all, and I really like this SUV. So who knows what it could be, I think it has something to do with the timing belt system, then again I could be wrong. But it does sound like those videos. And as for the tapping the owner before me did not take great care in oil management. I knew I should have changed that spring loaded tensioner. That is the part you all are talking about aren't you ? And it is not the crank, knocking. And when I accelerate to enough rpm's it goes away, but at a traffic light you can really hear it. Replies to this message: zwomack (Aug 20, 2009 6:04 pm) aj713 (Sep 13, 2009 5:14 am) downtower (Nov 06, 2009 9:12 pm)
#3 of 5 Re: Bad Ticking And Knocking [spankondrums] by zwomack Aug 20, 2009 (6:04 pm)
Replying to: spankondrums (Apr 15, 2009 6:16 am) Have you tried higher octane gas?
#4 of 5 Re: Bad Ticking And Knocking [spankondrums] by aj713 Sep 13, 2009 (5:14 am)
Replying to: spankondrums (Apr 15, 2009 6:16 am) It's the ignition system on it's way out. I had the same problem with my 2002 rodeo sport 4x4 with the 3.2. Even after the timing belt kit change. I got by with plus and super gas for a while before it finally crapped out. When the ignition finally went, it melted both cats, because it created a high speed mis fire. I was in the nj tnpke. Luckily I was able to limp off. It's that electrical looking thing located under the plastic engine cover. Now The engine runs better than ever, I can run regular gas, and no more pinging or knocking. Ang I have better fuel economy. Only problem is you have to get it from the dealer, and it aint cheap.
#5 of 5 Re: Bad Ticking And Knocking [spankondrums] by downtower Nov 06, 2009 (9:12 pm)
Replying to: spankondrums (Apr 15, 2009 6:16 am) I had the same problem with my 95 Rodeo. It sounded like a rod - knock but did not have any of the symptons besides the noise. The car ran fine and the sound went away at freeway speed but was very loud at idle. It turned out to be the Timing belt Tensioner. The spring (which is seperate from the pulley) went bad allowing the timing belt to slap the pulley into the stopper (Causing the knocking). The replacement was about $120 at NAPA. Good Luck!

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