roaring and smell problem.. - Engine and Car Noises


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leolady56
New User

Feb 6, 2015, 11:41 AM

Post #1 of 4 (1332 views)

roaring and smell problem..	Sign In

Our car is a 2005 ford focus 4 dr,2.0 size engine. We just had the transmission worked on last week,also they had to replace computer board.This morning it made a loud roaring sound when started,,also had a bad smell like ether to me coming from tail pipe.Also now that the car was worked on my spare key want crank the car still opens the door and can use to roll down the windows still...

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Feb 6, 2015, 12:23 PM

Post #2 of 4 (1318 views)

Re: roaring and smell problem..	Sign In

Is your spare key a PATs key?

You should take it to your mechanic or the shop that did the transmission work to be sure something they did or a defective part isn't causing your noise issue.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

leolady56
New User

Feb 6, 2015, 12:51 PM

Post #3 of 4 (1314 views)

Re: roaring and smell problem..	Sign In

What is a pats key,, we had it made at home depot right after we bought this car last july..it worked fine until we got the car back last week..

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Feb 6, 2015, 1:10 PM

Post #4 of 4 (1312 views)

Re: roaring and smell problem..	Sign In

PATS (passive anti-theft system) is what they call the engine immobilizer system on your car. The key has a transponder that communicates with a receiver in the dash. IF the PATs system likes what the key is telling it, it will allow the engine to start. If the signal is missing from the key or the PATs system doesn't like what the key is telling it, it will disable the engine from starting. A non PATs key won't allow the engine to start.

If you had your spare key on the same key ring the original PAT key is on, the spare key will probably start the engine because the PATs key is close enough to the reciever, but if you take the PATs key off the ring and use the spare key to start the vehicle, it won't start.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Feb 6, 2015, 1:13 PM)

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