Well, I don't think it's my injectors.
Thread Starter
Senior Member
Joined: Oct 2001
Posts: 504
Likes: 1
From: reidsville,nc,usa
Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
Well, I don't think it's my injectors.
I was driving home today and heard a rattling sound. As soon as I got home, I popped the hood to do the usual 'find the noise' area. Seems to coming from the driver's side valve cover. Got a long screwdriver and listened to it and noticed 'clacking sounds'. Then listened to the passenger side valve cover and it sounded much quieter than the driver's side. Lifters, rocker arms,valves need tightnening?
Ken
Ken
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Joined: Feb 2009
Posts: 660
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From: N. Virginia
Car: 1988 Firebird - 1998 Z28
Engine: 2.8 - LS1
Re: Well, I don't think it's my injectors.
Check your PCV valve.. Its right on top of the valve cover. That was making a clicking noise on me so i cleaned it with throttle body cleaner and now it doesn't make a sound..
But then again I'm just learning stuff as i go..
But then again I'm just learning stuff as i go..
Thread Starter
Senior Member
Joined: Oct 2001
Posts: 504
Likes: 1
From: reidsville,nc,usa
Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
Re: Well, I don't think it's my injectors.
I let the car set for about 3 hours when I got home and started it back up and it didn't make the tapping sound. I checked the oil level and it was about 3/4" above the full mark. The car might have too much oil and that may be causing the tapping sound. Oil might be foaming up.
Ken
Ken
Thread Starter
Senior Member
Joined: Oct 2001
Posts: 504
Likes: 1
From: reidsville,nc,usa
Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
Re: Well, I don't think it's my injectors.
I can tell you this. I drained some oil to get it back to the full mark on the stick. I let the car idle and didn't hear it. Once again, I put it in drive and heard it as I was taking off. The car idles at 800 rpm and I don't hear any tapping from the valve cover. The ONLY time I hear it is between 1000 and 1500 rpms when I'm taking off or coming to a stop within that rpm range. I need to make sure it's not a bracket or something making the sound. I had a power steering bracket do that once, but I have checked that already. At least it's not tapping all the time when driving.
Ken
Ken
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From: LeRoy, NY
Car: 2003 Hyundai Tiburon GT
Engine: 2.7L V6
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Re: Well, I don't think it's my injectors.
Next time you remove the valve cover, take a quick yank on all of the pushrods and check for play.
Thread Starter
Senior Member
Joined: Oct 2001
Posts: 504
Likes: 1
From: reidsville,nc,usa
Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
Re: Well, I don't think it's my injectors.
It's been raining here so can't get out and do much. At least its the driver's side which is a little easier. You are right Mav, I need to check them all rather than just one. Hey, the engine has probably got 220k miles on it. I've had this car for 15 years and never needed any tranny work or major engine work. Ya gotta roll with the punches. I'll let ya know what I find.
Ken
Ken
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