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Master Auto Tech.
Master Auto Tech., master tech.
Category: Mazda
Satisfied Customers: 464
Experience:  A.S.E. Master technician. Over 20 years working on import & domestic. Owner/operator of an auto shop
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Changed alternator and now car will not accelerate and real

Customer Question

Changed alternator and now car will not accelerate and real bad tremor and tach not working
Submitted: 5 months ago.
Category: Mazda
Expert:  Master Auto Tech. replied 5 months ago.

I'm sorry you are having problems with your vehicle. I will try to help.

I'm a full time mechanic and have been a mechanic for over 20 yrs and I work part-time here on JustAnswer to help you and others repair their own vehicles, and I get credited by your ratings.. So before leaving the site make sure and leave me a rating. You can still reply to me as many times as neeed, even after the rating.. I will need for you to be my hands and eyes since I'm not there.

So it sounds like a wire was disconnected on something. Do you have a check engine light on?

Let me know,

Thanks

sonny

Customer: replied 5 months ago.
Check engine light is not on
Expert:  Master Auto Tech. replied 5 months ago.

HHMMM, ok so that is interesting.

Try reseting the system. Take the battery cables off and touching them together for 10 seconds. and retry it and let me know what happens

Customer: replied 5 months ago.
K that didn't work still tremoring and seems like it's not idling right and still no tach
Expert:  Master Auto Tech. replied 5 months ago.

ok I am not sure. I will opt out and see if another tech has any idea. Sorry

Customer: replied 5 months ago.
Could it be a cam shaft sensor or the timing sensor on the crankshaft
Expert:  Master Auto Tech. replied 5 months ago.
it could esp if they were hit at all or unplugged. The tachometer reads off the crank sensor. Did you check the connector on the cam and cranks?
Customer: replied 5 months ago.
Checked connection on cam sensor
Expert:  Master Auto Tech. replied 5 months ago.
Just for kicks did you check all your fuses?
Customer: replied 5 months ago.
No but I'll dot hat now
Expert:  Master Auto Tech. replied 5 months ago.
Ok let me know
Customer: replied 5 months ago.
I did hit the camshaft sensor when I was tightening up the motor mount but no fuses are blown
Expert:  Master Auto Tech. replied 5 months ago.
Did you damage the sensor at all?
Expert:  Master Auto Tech. replied 5 months ago.
If you damaged it then that could be the whole problem. Let me know tho.Thanks
Sonny
Customer: replied 5 months ago.
I didn't c any cracks or nothing noticeable
Expert:  Master Auto Tech. replied 5 months ago.
Did You just sorta bumped it or did you whack it pretty good?
Customer: replied 5 months ago.
Not any noticeable damage to sensor
Customer: replied 5 months ago.
The end of the ratchet hit it pretty good
Expert:  Master Auto Tech. replied 5 months ago.
My message went the same time as yours, did you see my last post?
Expert:  Master Auto Tech. replied 5 months ago.
Oops. Sorry. Yours just came thru
Expert:  Master Auto Tech. replied 5 months ago.
it could of damaged it internally. It can cause the problem your having but generally the cel would come on. Does your cel come on when you turn the key on but engine off?
Customer: replied 5 months ago.
Expert:  Master Auto Tech. replied 5 months ago.
Ok so if it's not on when it's running then it's not setting a code. Unless it's a pending code. Well we could confirm if it was ok or not with an oscilloscope but I'm guessing you don't have one since it's rather specialized. So if it were me I'd probably replace it Anyway since it could cause all the symptoms you are having.Just curious is the maf hooked up?
Customer: replied 5 months ago.
Back at the parts place getting the cam sensor what is the maf
Expert:  Master Auto Tech. replied 5 months ago.
Mass airflow sensor. It's bolted on the intake tube and air cleaner box.
Expert:  Master Auto Tech. replied 5 months ago.
I will be signing off shortly so if I don't get a reply before I sign off I'll see your reply real early in the morning
Customer: replied 5 months ago.
Well it's not the camshaft sensor
Expert:  Master Auto Tech. replied 5 months ago.
Ok so make sure the maf is plugged in.
Customer: replied 5 months ago.
It'll be this evening and believe I'm gonna take it to shop
Expert:  Master Auto Tech. replied 5 months ago.
Try unplugging the alt first. If it doesn't fix it then take it to the shop. But it's an easy test.
Customer: replied 5 months ago.
I'll try it
Expert:  Master Auto Tech. replied 5 months ago.
Let me know what happens