car stumbling at cruising speeds?
 

Ive noticed over the past couple weeks my 98 c70 HPT coupe accellarates fine and idles fine. BUT every 10 min or so ill feel a little stumble from either the engine or trans when im doing about 60 mph. i havent really torn into it yet and investigated, i figured id ask around online before i took it to a mech.

RE: car stumbling at cruising speeds?
 

When was the last tune up including cap,rotor,wires?
How many miles?

RE: car stumbling at cruising speeds?
 

i just bought the car recently and the guy said everything was recently tuned up. could it be the trans?

RE: car stumbling at cruising speeds?
 

Could be a clogged Vent system,Mass Flow sensor going bad, It could be many things. Sad to say but you will have to try to wait till a check engine light comes on to know where to look.

RE: car stumbling at cruising speeds?
 

the check engine light comes on from time to time.. i figured it was just programed to do so after a certain amount of miles. thanks for the help.

RE: car stumbling at cruising speeds?
 

so i plugged my dads obd II code reader into the car today.. and no codes came up. Isnt the computer system suppose to store old error codes?

RE: car stumbling at cruising speeds?
 

It usually does store the codes.