what would cause my car to have alot of loping during idling and while driving on 1995 Buick Regal

while the car is in idle {warm up} its like it wants to stall. while driving at about 35 and higher i get he same problem loping or arratic idle. whats up check all the vacuum hoses but haven't changed the plugs or wires yet i used some dry gas treatment thimking maybe its my fuel injectors what do you think the nest step shoukd be,

by in Chicopee, MA on September 08, 2011
3 answers 3 comments
ANSWER by on September 08, 2011
I'm guessing it's your timing belt or the belt on the alternator. Needs a tune up.
COMMENT by on September 09, 2011
I don't believe there is a timming belt on this car. i've been trying the highest grade gas fot the last month hoping that might help. but it getting costly,
ANSWER by on September 08, 2011
There's no timing belt and it could be many things. Do you have a check engine light on?
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COMMENT by on September 09, 2011
No! I do not have a check engine light on. it would be nice if i did, that way i would look up a code.
COMMENT by on September 09, 2011
Just because the light is not on doesn't mean that it has no codes. Get it scanned by a real scanner.
ANSWER by on September 11, 2011
egr valve proble has carbon stuck in it put on computer to test