i have a 1989 mazda rx-7 manual...non turbo...everything works but it wont go...i can put it in gear and it starts to go but it just starts to pulll and pull. ...i was driving it fine then all of a suden it just would not start ... i cecked the coils, and changed the baterry but i now cant get it to run. it runs at 2-5 miles per hour now...can enyone give me a hint or tip on what may be the problem.?

 

So does it start or not? You said both.

 

yeah it does start....and the belts are all new and well ajusted...my batery voltage reads 12-16 ...it starts and then dies after a while...?

 

just baught the battery...

 

Not seeing why you're mentioning the battery. Is it dying because the battery drains while the motor is running? If that's the case, get the alternator tested and replace it if necessary. That's usually the problem.

 

you cant get the car to go more them 5 miles per hour yeah slippery cluth

 

it has a smsll miss ...could it be the intake...?

 

Battery voltage should be at 12.5 volts with the Key off and with the engine running at least 13.5 volts (but less than 15 volts).

Anything other than that indicates the alt is not working or not working correctly.

Fix that first...

Then the car might be in limp mode from something else, but you need to have stable voltage first.

 

ok thanks i will see the voltage and post my results

 

do you know how to troubleshoot and jump sensors? if not charging change the alternator and try adjusting the clutch to see if the car runs more

 

I had the same problem. It ended up being the alternator.

 

i will check my alternator ... thanks