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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

White exhaust smoke

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Old December 20th, 2013 | 9:54 AM
  #21  
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I hope not, how can I tell if it's cracked, without taking it all apart ?
Since I redid the intake manifold gasket , I haven't had a chance to change the oil. By the way it's not milky. Could that be the problem?
There is only 78,000 miles on this suburban..
Old December 20th, 2013 | 12:11 PM
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A compression check should tell you if you have a head gasket or cracked head problem. Water in the oil will show up as a grey, jelly like substance on the underneath side of the fill cap.
Old December 20th, 2013 | 12:16 PM
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Ok thanks
Old December 20th, 2013 | 12:17 PM
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I'll try that
Old December 21st, 2013 | 2:08 PM
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I just got a radiator presure kit. Do you know what PSI I should pump it up too. And how long should I leave it hooked up?
Old December 22nd, 2013 | 6:02 PM
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Well the radiator testing kit that I got from harbor freight does not fit on my burb. So I rented 1 from auto zone. I'll have to do the test on Tuesday . But I did look at my spark plugs and they have normal wear. But I broke a spark plug wire , so I ordered a set to replace them all.
Old December 22nd, 2013 | 6:16 PM
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I forgot I did a radiator flush today and when I started the burb to do the flush . It didn't smoke. It was about 72 deg today when I did it.
Old December 23rd, 2013 | 6:11 AM
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Originally Posted by Philly
Well the radiator testing kit that I got from harbor freight does not fit on my burb. So I rented 1 from auto zone. I'll have to do the test on Tuesday . But I did look at my spark plugs and they have normal wear. But I broke a spark plug wire , so I ordered a set to replace them all.
Thanks for the updates on your progress , keep them coming...
That is good to know about the HF pressure tester as I have seen that one and have kicked around the idea of getting one for the fun of it...
Old December 24th, 2013 | 4:35 PM
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Tomorrow will be plugs and wires , cause I broke a wire the other any , and a oil change. Not sure if I'm going to be able to get to the valve seal.
Old December 29th, 2013 | 8:40 AM
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I changed the wire and plugs on Christmas , and I have a miss. I was told at autozone the the gap of the plugs should be 3.5 . But I'm not sure if that's right. Does anyone know the proper gap for a 1993 chevy suburban k2500 7.4 454 engine? I was thinking it maybe 4.0 or 4.5!!


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