GM Quad4 (2.3L DOHC I4) :How durable is it?

**[email protected]** · #1 December 8th 16, 02:06 PM posted to rec.autos.tech

The quad..2.3 and 2.4 modles do not like thermocycling... the head gasket and head especially, they like to crack around 150,000 miles... so if tou havent had to do any of that yet id save for it... also if you have the means start saving for a waterpump also...thats a 8 hour job... as for the cams and valves...i havent heard of really any problems with those, bit if you're gona save for a head may as well save to have the valves done plus a port and Polish.

**Paul in Houston TX[_2_]** · #2 December 9th 16, 04:22 AM posted to rec.autos.tech

wrote:
> The quad..2.3 and 2.4 modles do not like thermocycling... the head gasket and head
> especially, they like to crack around 150,000 miles... so if tou havent had to do any
> of that yet id save for it... also if you have the means start saving for a waterpump
> also...thats a 8 hour job... as for the cams and valves...i havent heard of really any
> problems with those, bit if you're gona save for a head may as well save to have the
> valves done plus a port and Polish.

Most people have never heard of those engines.
The last of them were melted down for scrap about 20 years ago.

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