I have a 1998 Mercury Tracer LS. Whenever I try to rev the car in Park it makes a sucking air noise and then the car revs up about a full second after I hit the gas pedal ( about a half second after the air sucking noise). I only reved the car up because when I tried to start it, I didn't hold the key long enough and it stalled. The only way to start it after this happens is to use the gas pedal while it is trying to start. (It doesn't do this often) After the RPM's went down I reved it back up so it wouldn't stall when I put it in reverse. That's when it made the air noise and it does it everytime I rev the car up now. The car has never done this before, but now it is crapping out on me. I just want to know what's wrong with it before it becomes a bigger problem. The engine has high miles on it, but it runs strong and it has NEVER leaked any fluid since i got it. I've already waisted about $3,000 on the car and I really don't want another engine or have to sell the car. Suggestions?
2007-10-10 00:33:40 · 6 answers · asked by Rachael 2 in Cars & Transportation ➔ Maintenance & Repairs
Sucking air really means only one thing... a vacuum line has come off or broken off. If you can hear it that well inside the car, you should be able to hear it clearly with the hood open standing in front of the car. Get somebody to keep it running for you while you search for that sucking noise.
I'll bet the sucking noise will be found near the distributor or intake manifold as it appears to be affecting your timing advance hence the delay in revs when you give it gas. With the high miles come dry, brittle vacuum lines and rubber hoses. I had a similar problem with a broken PCV valve that cost all of about $2 to fix.
Good luck!
2007-10-10 01:32:42 · answer #1 · answered by Les 4 · 2⤊ 0⤋
I will go with the Vacuum leak therory. On the 1.9 liter tracer engine behind the throttle body there is a PCV hose that turns to chewing gum consistancy and the valve cover vent hose should be checked too.
2007-10-10 07:49:25 · answer #2 · answered by John Paul 7 · 3⤊ 0⤋
"Large Vacuum Leak" get a Good Shop to check the Vacuum system.
2007-10-10 22:50:18 · answer #3 · answered by sidecar0 6 · 0⤊ 0⤋
Could be a air leak on the induction maniflod or a vacume hose or on the vacume modulator on the auto box
2007-10-10 07:47:10 · answer #4 · answered by Anonymous · 1⤊ 1⤋
sounds like a vacuum leak check all hoses
2007-10-10 07:42:35 · answer #5 · answered by Anonymous · 3⤊ 0⤋
Have the car diagnosed to be sure. I think you may have damaged the accelerator pump on the throttle body.
2007-10-10 07:39:27 · answer #6 · answered by Jody D 6 · 0⤊ 2⤋