high rpms

My mavericks runs about 3500 rpm doing 55, its a 200 with a c4. Any ideas?

 

Either your trans isn't shifting to 3rd, you have a 4.70(roughly) rear end ratio or the tires are approx 16" tall(you do have tires on the rims?)...

 

lol its shifting inyo 3rd, and it has the 7.5 rearend. I believe a 3.08 rear gear

 

I thought maybe the torque converter was maybe slipping?

 

If the torque converter was slipping badly enough to add a extra 1000+ rpms it's going to over heat and be a dog on acceleration(we're talking inefficient/slipping converter, not high stall speed)...

Maybe your tach is set for a 4cyl??

 

I need to change my tach but it seems accurate. is there any vaccum lines to check?

 

If transmission shifts normally, vacuum isn't a issue...

As already mentioned, if it really is turning 3500 rpm, the trans should be overheating badly...

 

I"d say the tach isn't right

 

Ok well ill change the tach and see how it goes, I have had the tach go out. but only for an second. I may also replace the coil, as it is very corroded.

 

I think you should be able to tell if the 200 is really turning 3500, without a tach...

 

No doubt.

Put it in drive.. hit the gas.. listen and learn through first gear.. listen and learn through second.. listen and learn after it hits third. No tach required.