Coolant Temp Gauge (and others)

DanInTexas
Sun, 12 Jul 2020 18:52:49 +0000
Maintenance/Repairs

Greetings community. New member here. Avid DIYer but I just got a new to me 1999 GMC Suburban and since I’ve never had one before I figured I’d ask some people who’ve had one and would know.

99 Suburban K1500 5.7L

The instrument cluster was having issues so I had it rebuilt by a repair shop. Now I am uncertain if they did the job correctly. After the rebuild I put the cluster back in and I’m still having issues with the coolant gauge (including others).

To rule out the cluster I replaced both coolant temperature sensors and the thermostat. I also purged any air out of the system. After all this the gauge still only reaches the first quarter mark ~160F.

There’s nothing else it could be at this point right, they need to redo the cluster?

All the gauges should read 0 with the ignition key off correct? They shouldn’t display the last reading when the truck was running?

Thanks in advance.

14 posts - 6 participants