98 GT engine start up knock

[xpstang]

I have A 98 GT with 110,000 mi., and it started getting a clacking noise from the valves only at start-up. otherwise she runs great. the shop said that that is normal for high mileige cars. I am worried its doing damage if I dont fix it. Any info would help.

 

[Mike97gt]

could have a cam chain tensioner bleeding down

does it only do this when the car has been sitting for awile.

 

[Kilgore Trout]

Could also be due to a cheap oil filter with no drainback valve...

 

[xpstang]

No the opposite, if the car sit for a while it wont do it.
I think it has something to do with the oil pump because its only on a cold start. But thats just a guess.

 

[xpstang]

No only use higher end fram filters.

 

[Mike97gt]

No the opposite, if the car sit for a while it wont do it.
I think it has something to do with the oil pump because its only on a cold start. But thats just a guess.

thats what i asked.. if you let the car sit overnight or for a extended time does it do it.. so i assume that if you shut it off warm then restart it's fine..

first try too use a MOTORCRAFT fitler.. then if that dont fix it look at the cam chain tensioners..

 

[98stangv8]

mine used to knock only at startup, then a little more here and there, then I spun a bearing...

 

[Outlaw97GT]

I have A 98 GT with 110,000 mi., and it started getting a clacking noise from the valves only at start-up. otherwise she runs great. the shop said that that is normal for high mileige cars. I am worried its doing damage if I dont fix it. Any info would help.

What weight oil are you using?

To thick oil won't travel through the engine as fast when its cold.

 

[the98stang]

Try running some lucas oil through it...that sh1t works pretty well...

 

[d98gt]

My car actually does the same thing and it confuses me. If it sits for quite some time it'll do it, though if its warm it won't