got noise in the top end
#1
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Car: 89 gta
Engine: 5.7 tpi
Transmission: automatic
got noise in the top end
i have a noise between 1500 and 2000 rpms its a ticking noise what could it be .it gose away after 2000.i think it might be lifter need help please.oh ya and im not getting n e check engine lights.so i dont know what it could be
Last edited by waldothejuggalo; 07-26-2004 at 12:14 AM.
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Car: 1989 GTA Nighthawk
Engine: 389 CID TPI
Transmission: TCI 700R4
Axle/Gears: 9 bolt 3.23
I would guess a lifter, try adjusting the valves. What code are you getting?
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Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Unplug the EGR and see if the ticking stops.
Is a sound like such that can be reproduced by tapping 2 spoons together? If so, readjust the valves. If it a bit more faint, try tightening the exhaust mounting bolts. Also, injectors can be make a slightly audible tick
Is a sound like such that can be reproduced by tapping 2 spoons together? If so, readjust the valves. If it a bit more faint, try tightening the exhaust mounting bolts. Also, injectors can be make a slightly audible tick
Last edited by Stekman; 07-26-2004 at 10:29 PM.
#5
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Car: 89 gta
Engine: 5.7 tpi
Transmission: automatic
thanks ill try. that if it dosent work ill try to adjust the valves. if that isnt it ill try to change the lifters if that dont work i dont know what it is
#6
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Car: 89 gta
Engine: 5.7 tpi
Transmission: automatic
i think i found out what it is
i went to my buddys house to take a look at my car and we determend that i have bad lifters.so im going to go and get the lifters and replace them all. ill keep you all posted with the results
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#8
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Car: 1989 GTA Nighthawk
Engine: 389 CID TPI
Transmission: TCI 700R4
Axle/Gears: 9 bolt 3.23
If it has a bunch of miles or didn't have the oil changed on a regular basis it could be the lifters. But a lifter tick isn't anything major, try adjusting the valves.
#9
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Car: 89 gta
Engine: 5.7 tpi
Transmission: automatic
i did that
I did adjust them but it still was there.the thing is i thinik the one lifter is frezzing up .so im just going to replace them all that way they r new and i dont have to worry about them for a long time
i only have 77,000 miel on the car
i only have 77,000 miel on the car
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Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Freezing or collapsed? 2 different things. Collapsed would make a noise as the internal plunger hits the bottom of the lifter body. This could be the case with the lower oil psi of the lower rpm's. At higher rpm's there is adequate pressure, or at least enough so that the lifter doesn't tick audibly.
Pull the valve covers and watch the rocker arms. If they all move in the same manner, then the lifters are fine. If you see one that isn't moving like the rest, shut down and apply pressure on that pushrod. If it's collapsed, you will feel very little resistance.
If you still have a bad lifter, and since you have a factory roller setup, you can by a single replacement, no need to by all 16. Roller lifters don't develop wear patterns that are specific to that particular cam.
Pull the valve covers and watch the rocker arms. If they all move in the same manner, then the lifters are fine. If you see one that isn't moving like the rest, shut down and apply pressure on that pushrod. If it's collapsed, you will feel very little resistance.
If you still have a bad lifter, and since you have a factory roller setup, you can by a single replacement, no need to by all 16. Roller lifters don't develop wear patterns that are specific to that particular cam.
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