May be a long post so bare with me please 
Vehicle: 1985 4Runner 22RE - 300,498km's
So I've had this horrible hesitating/bucking issue with my 4Runner ever since I bought it; bought it last February. The problem occurs after the vehicle has warmed up; once you let off the throttle it'll start to hesitate/buck; sounds like it's chocking.
After reading MANY posts about similar issues on here and yotatech and testing each idea; nothing worked. My Dad chimed in and thought it may be the EGR valve; so I plugged the vacuum line going into the valve itself and BOOM...problem solved (for time being).
Here's what I did (I have posted this picture before):
Now I have to go for emissions testing next month; so got to get this fixed properly!
Couple questions:
- Would the valve itself be the culprit or could it be the modulator? Reason I ask is because I popped that little cover off the modulator and found quite a bit of moisture in there. The filters inside were soaked and had some black patches on them (I can go take pictures if need). EDIT: When I initially plugged the EGR valve; I did not inspect the modulator to see if there was any moisture in there; so can't be sure if it was always there or was a result from plugging the valve.
- Would having the EGR valve plugged cause moisture to build up in the modulator? Would replacing the filters be a good idea and a good place to start?
Any help or suggestions would be great!
Thanks guys!
Vehicle: 1985 4Runner 22RE - 300,498km's
So I've had this horrible hesitating/bucking issue with my 4Runner ever since I bought it; bought it last February. The problem occurs after the vehicle has warmed up; once you let off the throttle it'll start to hesitate/buck; sounds like it's chocking.
After reading MANY posts about similar issues on here and yotatech and testing each idea; nothing worked. My Dad chimed in and thought it may be the EGR valve; so I plugged the vacuum line going into the valve itself and BOOM...problem solved (for time being).
Here's what I did (I have posted this picture before):
Now I have to go for emissions testing next month; so got to get this fixed properly!
Couple questions:
- Would the valve itself be the culprit or could it be the modulator? Reason I ask is because I popped that little cover off the modulator and found quite a bit of moisture in there. The filters inside were soaked and had some black patches on them (I can go take pictures if need). EDIT: When I initially plugged the EGR valve; I did not inspect the modulator to see if there was any moisture in there; so can't be sure if it was always there or was a result from plugging the valve.
- Would having the EGR valve plugged cause moisture to build up in the modulator? Would replacing the filters be a good idea and a good place to start?
Any help or suggestions would be great!
Thanks guys!
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