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Post by ZuZu4by on Oct 17, 2003 8:09:41 GMT -5
Boy, am I glad I found this board and thanks to SuperTrooper for letting me know it is here.
Now, I have a 96 Trooper with the 3.2s (at least I think it is a SOHC. I'm pretty dumb with engines but am trying to learn).
I have about 156,000 miles on the truck and there is that tapping sound from the valve-train ( which I understand is normal?) I found an Isuzu maintenance manual print out that suggests that the first remedy to try is to change the oil to Mobil 1 synthetic 0-30W oil.
I had gone to a thicker oil in hopes to cure the ticking, which can be very loud and disturbing at times.
Should I go to a synthetic oil?
Or should I just live with the noise?
Thanks,
ZuZu4by
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brad84
Junior Member
Posts: 16
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Post by brad84 on Oct 19, 2003 0:15:23 GMT -5
you can try different oils and additives and stuff most stuff wont help and if it does help it will only be temporary but it wont hurt anything either so its worth a try
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bilzner
Junior Member
Troooopin
Posts: 13
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Post by bilzner on Oct 19, 2003 14:21:47 GMT -5
Hi everyone. 2 nights ago I started my trooper to hear a ticking noise.. I opened the hood and it seems to get louder and quieter.. Is this really characteristic of the 3.2dohc? I have 276000kms on it and it just started 2 nights ago. I'm bringing it in to get checked at my local isuzu dealer.. what do you guyz think, should I get the valve looked at to try fix the tic? or should I leave it and try a different oil? please guyz, help me out with this one... my mechanic friends say I should get it looked at and fixed before the whole engine goes.. fellow trooper owners .,,, what do you think???
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Post by Eric on Oct 19, 2003 20:41:55 GMT -5
Okay. I thought I was the only one.
About 5,000 miles ago, I had to have the whole bottom end rebuilt. They assured me that it was nothing I did, because I don' t beat on it, and I change the oil religiously.
It turned out to be a crank bearing. They had to replace the crank, all four bearings, one connecting rod, and some other little bits and bobs.
The bill turned out to be somewhere in the neighborhood of $3500. Luckily, I was still 600 miles shy of the 60,000 mile warranty mark. Still took 5 weeks, when I was originally told 2.
Getting to the point. My '98 with the 3.5 is doing the same thing. I go through a quart of oil or so every 400-500 miles. It's wierd, because there's no typical blue oil burn smoke coming from the exhaust.
The ticking sound is hard to hear sometimes, when I goose the gas real quick and then immediately let off. It's also more noticeable when I'm pulling my 1800lb car trailer. I don't know what the story is.
I found an article I'm trying to locate the link for that mentioned that the best first step in regulating this oil flow issue is to swap out the PCV valve. Apparently if it fails in the shut position, crankcase oil pressure builds up and causes oil to find a path out, even if it's through the piston rings.
So, I'm headed to the parts store to snag a PCV valve. I'm under the impression that it's under $10, so even if it doesn't help, I'm not out a bunch of cash.
The way I figure it, when my extended warranty runs out at 82,000 miles, and the motor tanks, I'll find a 5.7 or 6.0 Vortec to shoehorn in there somehow. What the hell. I'm getting 13-14 mpg in town, anyway. I might as well have 300hp and 365ft/lbs of torque along with the crap mileage.
PCV Valve and Grommet (seal).
Could be worth looking into.
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Post by ZuZu4by on Oct 20, 2003 11:43:26 GMT -5
Well, I found the techincal bulletin SB614929 on the ticking sound from hydraulic valvetrain.
Isuzu says that this is cuased by one or more of the lash adjusters not being able to full extend due to varnish buld up inside. They say it is caused by exceeding the required oil change milage reccomendation.
They first say to change the oil to Mobil 1 synthetic 0W-30.
If that don't work the we have to replace the affected valvetrain component.
I will try this oil change fix and let you guys know what happens.
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Post by Eric on Oct 20, 2003 14:01:55 GMT -5
Thanks for the info. And thanks for posting the details of what you're going to do, so your efforts aren't duplicated if they don't solve the problem. If it doesn't work for you, maybe we can try different brands or weights.
Who knows.
I traded in a '98 SHO for my Trooper in hopes that things like this wouldn't crop up from a Japanese vehicle. Such is life....
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bilzner
Junior Member
Troooopin
Posts: 13
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Post by bilzner on Oct 20, 2003 18:12:13 GMT -5
I tried some additive for my trooper and it turned out it works. It was for loosening sticky lifters, I poored it in and went for a drive. The ticking of the lifter stopped so now we know whats wrong with my troop.. I'm going to go ahead and fix the sticky lifter or valve and then maybe change to that synthetic oil if that turns out good for ZuZu4by I'll keep you all posted too.. Thanks for the info guyz.  |
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Post by Eric on Oct 30, 2003 13:16:09 GMT -5
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IsuzuRS
Full Member
"Your not really 4wheelin unless you get it stuck."
Posts: 70
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Post by IsuzuRS on Nov 4, 2003 1:02:18 GMT -5
I went ahead and tried the Mobil 1 synthetic oil change. it worked for the first 1300 miles, then the tick came back. My next project is to replace the upper and lower intake manifold gaskets(theyere leaking) and to the exhaust, from the headers back. I'll check up on this post to see if you guys find a solution.
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Post by ZuZu4by on Nov 6, 2003 8:28:07 GMT -5
Well, I just had to spend about $500 to have my tension idlers on my timing belt replaced. They came loose and sheared the belt. Appearently, that was my ticking problem. The engine is running as quiet as ever now.
You guys my want to have those idlers checked when you replace the timing belt.
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IsuzuRS
Full Member
"Your not really 4wheelin unless you get it stuck."
Posts: 70
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Post by IsuzuRS on Nov 6, 2003 22:30:55 GMT -5
 I already had my timing belt checked, after it was replaced 10k miles ago. Well, I know that it is my lifter tickin. In fact, i know its one on the passenger side, near the #5 firing sarkplug in the firing order. If i baby my trooper, then there is not engine tick. Eventually, i will fix this ticking, but it is said to cause no damage.
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IsuzuRS
Full Member
"Your not really 4wheelin unless you get it stuck."
Posts: 70
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Post by IsuzuRS on Nov 16, 2003 8:58:09 GMT -5
I have been looking into doing what is called "SEA FOAM" to clean out the carbon deposits in my engine. this will clean up the lifters, and no more tick! So far i've read on www.seafoamsales.com that you can pour it in your gas to clean the injectors, in your oil, crankcase, and more applications. This things has an awesome report with the guys at www.planetisuzoo.com * I am in no way affiliated with this company, and am not either a mechanic(just had to say that ;D ;D  |
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Post by BuckHunt on Nov 16, 2003 19:34:17 GMT -5
I have heard good about the sea foam, but i cant find it locally. I have 103k on my 3.2l sohc, and the tick has been around since i bought it at 83k.
I switched to Mobil 1 0w-30 synth, and it did not help the tick at all. thats a $35 oil change (done at home) - if you have a shop put that in you are probably looking at a 50+ dollar oil change. Some have reported success, but I just went back to dino oil - at 12 bucks per oil change i just change it at about 2-2.5k miles and the tick stays tolerable.
If anyone tries the seafoam, post up.
I have tried rislone and Gunk engine cleaners before an oil change, didn't help the sound any.
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IsuzuRS
Full Member
"Your not really 4wheelin unless you get it stuck."
Posts: 70
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Post by IsuzuRS on Nov 18, 2003 21:36:29 GMT -5
My next oil change will just be with the 10-30weight oil. Cheap, and since i will try sea foam eventually, i might as well wait to do fully synthetic oil. We should think this way till we fix our tapping lifters...."It gives the Troop character"
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Post by Zaphod on Nov 22, 2003 16:08:27 GMT -5
Yesterday I pulled into a parking space and I thought I saw a red light flash for an instant. This had been happening for a few days, and each time I thought I was just imagining things. Well, once is okay, twice maybe. THREE times? I backed out and (like a good engineer) tried to recreate the circumstances. BINGO! Oil light flicked on and off so quick you'd miss it if not looking for it. I checked the oil level and it was BONE DRY! I bought and it swallowed 4 ENTIRE QUARTS, and STILL the level on the dipstick was only halfway. I could not believe it!  The truck (2000 LS) has only 31K on it, and I bought it at just under 26K. I have no idea if it was topped off when I bought it, but CarMax is pretty picky about prepping vehicles for sale. I've read elsewhere that the truck requires ONE QUART EVERY THOUSAND MILES! THAT'S INSANE!  |
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about the oil issue. Check out what they had to say:
93TrooperRS 130K, Pioneer CD, 4x4(duh) 31" A/Ts, 5spd, 3.2L DOHC 
I already had my timing belt checked, after it was replaced 10k miles ago. Well, I know that it is my lifter tickin. In fact, i know its one on the passenger side, near the #5 firing sarkplug in the firing order. If i baby my trooper, then there is not engine tick. Eventually, i will fix this ticking, but it is said to cause no damage.
