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1984 tacoma 22r surging

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Old 07-05-2011, 05:45 PM   #1
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1984 tacoma 22r surging

Hi everybody, I am new here, on vacation using an android device ( viewsonic 10 inch ) and cant use search on it. Don't know why. So if this posted, sorry I cant search. The truck surges at any speed and every grear. So, if I am in second, holding speed at 15mph, the truck speed will drop and speed back up about every second or second and a half. There is also a loss of power at any speed, ( not good in a 4 banger ) I am looking for a vacuum leak now but I don't really think that is the cause. I am thinking it is a carb problem. Any help by you guys would help. Thanks
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Old 07-06-2011, 07:21 AM   #2
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Quote:
Originally Posted by johnnyjack1 View Post
Hi everybody, I am new here, on vacation using an android device ( viewsonic 10 inch ) and cant use search on it. Don't know why. So if this posted, sorry I cant search. The truck surges at any speed and every grear. So, if I am in second, holding speed at 15mph, the truck speed will drop and speed back up about every second or second and a half. There is also a loss of power at any speed, ( not good in a 4 banger ) I am looking for a vacuum leak now but I don't really think that is the cause. I am thinking it is a carb problem. Any help by you guys would help. Thanks
I doubt there is a carburetor, rather fuel injector, and I would use a bottle of injector cleaner in your next tank and see if it solves it.
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Old 07-06-2011, 08:11 AM   #3
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Hi Petyanca, it does have a carb. And I put carb cleaner in the tant and used carb cleaner on the carb. I cant find any vacuum leaks.
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Old 07-06-2011, 08:17 AM   #4
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efi came in toyotas in 85 iirc, as mentions check for vac leaks, then check to see if anything is restrictin air fuel or spark
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Old 07-06-2011, 08:26 AM   #5
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Check the egr mske sure it holds vacum.
Probabaly doesnt have a TPS does it? That is a common problem on the 22RE
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Old 07-06-2011, 04:57 PM   #6
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Also check for leaks in the intake system (intake manifold/intake tube/etc)
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Old 07-07-2011, 07:59 AM   #7
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Could be the rubber diaphragm in the carb.
They dry rot and will not keep proper pressure...so the engine
will run rough.

Buy a carb rebuild kit and the rubber diaphragm is included...

pretty easy to replace.

Good luck.
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Old 07-07-2011, 09:21 AM   #8
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Originally Posted by petyanca View Post
Hi Petyanca, it does have a carb. And I put carb cleaner in the tant and used carb cleaner on the carb. I cant find any vacuum leaks.
oops sorry I thought you were talking about truck in your profile.
Yeah i think a rebuild kit should help, and may be clean all the passages with carb cleaner.
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Old 07-12-2011, 05:36 PM   #9
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Thanks guys, I am in the Oregon hills and don't have internet. I found a leak under the carb, so i made a gasket and it runs somewhat better. The serge now is fast just like if you were tapping the gas petal, but only under a slow load. I think I will rebuild the carb next. Thanks again.
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