NickyC

C4 vettes1984-1996 has first generation OBT check engine light tech(up to 1991) - basically you count a series of lights flashing when you plug-in under the dash -then go to service manual and see the complicated procedure to try diagnose the problem. I had shops trying to diagnose code 33 and 36 for about two years. Finally solved. Now I have linkage problems in my manual shifter. Car is over 30 years old.. New Vette’s C5-C7 have a much better diagnosis system that give specific reasons for check engine light-therefore is easier to solve.

Pretty sure it’s grease... will take before/after photos- car still in shop with shift linkage problems...

Yes I know... trying to avoid going that route.... just spent bunch $ solving check engine/ bad hesitation problem...and just back in shop w/manual shift issues...

Tks for reminder- I usually use tooth brush in hidden area to test...ps tried WD40 after Softsoap. with no results..

Thanks Rich.. will take a shot at this first.. then the Leather Conditioner... car in shop now wth shift linage issues...

Tks all.. will let you know how it goes

Thanks— I give LIC a Shot And will let you know how I do

I am new to this forum. I have red leather sports seats on 87 Vette with matching red vinyl inside door panels -- the inside vinyl door panels are my concern with fair amount gease/body oil.. car has only 42000 on it and in general panels are in good condition. I was thinking of trying Adams All purpose cleaner or new Eco all purpose cleaner on it. To date, I have tried Dove/hot water and Soft scrub with not any good results. Any thoughts appreciated

I'm sorry-- talking interior. I have red leather sports seats on 87 Vette with matching red vinyl inside door panels -- the inside vinyl door panels are my concern with fair amount gease/body oil.. car has only 42000 on it and in general panels are in good condition.

I’m trying to get ground in dirt and grease off side red panels of my 87 Corvette. I was thinking of trying your all purpose cleaner or the new eco all purpose cleaner . I previously tried hot Dawn detergent with soft scrub using soft brush/also tooth brush Results not good. Any thoughts?