Hi, I just completed my engine project and everything works well. However, I still have a problem I had with my old engine-- TEMP GUAGE DOES NOT REGISTER ANYTHING. I had this problem last summer just before the engine blew and I do not want it again. Does anyone know what this could be or how I can diagnose where the problem is? Thanks

paw

As stated in a previous post, check the Water Tempeature Sender located under the 1/2 injectors. Your 1988 uses the one pictured at the bottom of this post.

I would trace the wires to see if they have corroded or broken, paying particular attention to the ground if you see absolutely no activity on the dash gauge (I think it ground on the top of teh intake manifold... at least the 1985 does). Also, check any relevant fuses that might be involved, and make sure the contacts on the back of the gauge are tight.

If you've installed a new one on your new/used engine and it still isn't working the dash gauge might be dead. Get a new one off a junker for replacement.

As for buying a new Sender, I would recommend you visit http://www.importeccatalog.com. They sell all the parts cheap, and have the two wire sender for your brick for $19.74 (it's under Body Electrical).

good luck,
rt

this might sound stupid, but have you tried tapping on the window of the glass? sometimes my fuel and temp gauges stick too and a quick flick with my fingernail makes it jump right up and work.
--
Kenric Tam
1990 Volvo 740 base sedan (B230F)
My Volvo 'Project'

Paw
Make sure the sendor is hooked up, its right below the number 1 and 2 fuel injector, if thats properly hooked up look at the back of the guage on the dash and make sure all wites are plugged into the dash properly, if still is doesnt work replace the guage, or look for a broken wire, on an 88 i believe it is a 2 wire sensor.