May 20- If it stack-shifts with the vacuum line disconnecte then you have a defective modulator; a stuck governor; or line pressure problems. Shifting Problems For TH3- ChevyTalk - FREE Restoration and. If the vacuum modulator is unplugged it will wind much higher before shifts .
I noticed it has a problem shifting into third. Feb 2013th3with 235ci, no 3rd gearpostsNov 2011TH3ProbleToo little flui bad filter, Murphy's Law? Jul 2010TH3Transmission Problems Please Help Me. Surprisingly enough vacuum line modulator was a problem to shifting, .
Vaccum modulator to fix a shifting problem and the old. I'm not that familiar with the TH40 but on a TH35 the modulator . If I plug the vacuum line to the TH3transmission, the engine runs. I am having 2nd to 3rd gear shifting issues. I replaced the vacuum modulator with an Advance Auto Parts red stripe part . TH3Modulator valve issue or other problems?
I dont think it should be a problem if your getting full vacuum. TH3will shift up with a bad modulator or no vacuum to it,but it . The good news as it relates to valve body problems is that the TH3uses a.
Aug 20- Other common problems our experts experience in both the TH3and. The line is metal with rubber joints at each end . TH3Problems when HotpostsMay 2009TH3slipping. TH3Modulator problems, need savvy advise - Hot Rod Forum.
I have a shot TH3transmission in my 'Camaro. If it does, replace the modulator with new vacuum hose. The kickdown cable in a TH3is just that, for full throttle kickdown. Your vacuum modulator controls shift points, you can disconnect the kickdown cable with no problem.
It sounds like a possible modulator valve problem. A lot of times if the modulator goes bad you will find transmission fluid in the vacuum line when. The modulator is what controls shifting in the TH3and it uses vacum . Fluid pouring out of TH3when vacuum modulaor remove hard time getting.
Anyways, I first figured vacuum leak or modulator, second would be. I noticed the issues because the tranny leak . I have a 19chevy pickup with a 3motor and a th3transmission i have a. Check the vacuum hose going to the vacuum modulator.
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