5.7 vortec engine

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1 week 6 days ago #203722 by Hivan3022
5.7 vortec engine was created by Hivan3022
Hey eric am new here i dont even know if am doing this right. I have a 96 chevy tahoe with the 5.7 liter vortec engine in it my problem is i replaced the engine the radiator water pump alternator,and air compressor however my question is what is the normal operatin temperature mine seems to be at 235 when the old engine was at around 200-210 any ideas i also change the thermostat

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1 week 6 days ago #203723 by nightflyr
Replied by nightflyr on topic 5.7 vortec engine
First thought would be ensure the cooling system has been properly bleed and check for any obstructions of air flow.

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1 week 6 days ago #203725 by Hivan3022
Replied by Hivan3022 on topic 5.7 vortec engine
I did for the cooling system ive tried everything already could it be a faulty gauge??

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1 week 6 days ago #203726 by nightflyr
Replied by nightflyr on topic 5.7 vortec engine
Possibly.
Or a faulty sending unit, or wiring.
Best to check the actual coolant temperature to see if the gauge is accurate.

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1 week 6 days ago #203727 by Hivan3022
Replied by Hivan3022 on topic 5.7 vortec engine
The sending unit is new could it also be a leak somewhere?

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1 week 6 days ago #203729 by nightflyr
Replied by nightflyr on topic 5.7 vortec engine
The sending unit is new
New does not always mean properly functioning.
Which is why I suggest you confirm the coolant temp.

could it also be a leak somewhere?
Are you seeing a loss of coolant???

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1 week 6 days ago #203736 by Hivan3022
Replied by Hivan3022 on topic 5.7 vortec engine
Yea i i thought about it to i swappedbit out twice already and no am not seeing a loss in coolant.

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1 week 6 days ago #203737 by Hivan3022
Replied by Hivan3022 on topic 5.7 vortec engine
Thats where the needle is all the time after it warms up ofcourse .is it normal for the gauge to stay like this after i turn the engine off?
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1 week 5 days ago - 1 week 5 days ago #203738 by nightflyr
Replied by nightflyr on topic 5.7 vortec engine
Engine off, key in hand..?
If that's normal, it is the first time I've seen gauges remain active with out the key in the accessory or on position.

It is possible you may have an issue with your cluster.
Last edit: 1 week 5 days ago by nightflyr.

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1 week 5 days ago #203739 by Hivan3022
Replied by Hivan3022 on topic 5.7 vortec engine
Yes thats the reading on the cluster without the key in the ignition if i put the key in they will drop and will go back up as the engine warms up

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