Question about Subaru Cars & Trucks
Posted by Anonymous on
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Posted on Jan 02, 2017
Just a shot in the dark here. Mikuni carbs were problamatic on that engine. I remember them well. They had internal vacuum leaks and diapragm leaks just like you describe. I dont kn ow if you can get it any more but the fix used to be a new reman carb. they were not rebuildable. But I always wondered why you coul not have a base plate adapter made by a machine shop to adapt any other simpler carb to it? as long as your cfm rating was the same--ya know? Like take a holley 2 barrel off a k-car and adapt it on. Anyway I hope I helped. But that is what it sounds like. Carb replacement. Thanks
Posted on Apr 06, 2009
SOURCE: 2005 jeep grand cherokee 4.7
Check and clean the idle control solenoid and passages, check the throttle position sensor and perhaps the crank sensor. Don't buy anything without testing or you will be spending money on stuff you don't need.
If stumped, get a chiltons or haynes manual and go through the test procedures they outline. Any good shop does this and you should too!
If it tends to stall that tells me that the iac is possibly opening late (sticking) but that can also happen if it gets bad information from the control system. (where testing is important)
Posted on Oct 07, 2009
Throttle position sensor, check this out. Also try cleaning the throttle body with throttle body cleaner may be all it needs'
Posted on Feb 13, 2010
SOURCE: Engine over revving at idle
looks like yor air valve is not working properly.check the water imput (could be clogged). also,did you removed your termostat? if so,put it back and solve the problem.
Posted on May 02, 2010
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