Recent content by robhersch

Believe original GM warranty on Cad was 48 mo/ 50,000 mi whichever comes first; but auto may also have an extended warranty which if GM may be as long as 8 yrs/ 100,000 mi or?? Also, suggest checking VIN with GM to find if it may have "original", "GM extended", or it be a "GM Dealer Certified"...

Ask question on the cadillac owners forum deville. Many more Cad discussions there.

Sounds like a turnlamp socket or lamp problem to me; I would disconnect vs replace until isolating to the culpret. Suggest checking all light sockets associated with turnlamps - not uncommon for a "shorted" socket; if problem still there, next remove lamps from each socket - one at a time and...

All 92s did NOT have 4.6 L NorthStar engines!! YES, if N*V8, NO, if 4.9 L. My opinion.

Deville was the FWD model w/ 4.5 L? changed to 4.9 L in '91? Those FWD engines were aluminum blocks with steel liners & "O" ring seals. I would suggest doing a compression check on cylinders and a "radiator bubble test" to check for blown gaskets, leaks, etc. This engine was replaced by...

In addition to those above: Suggest removing radiator cap - when engine is cold - fill with coolent to top, start engine, watch for "bubbles, etc" a simple check for leaking head gasket. If OK, I would then DRAIN OIL and CHANGE FILTER (vs the "quick & dirty" oil change method) and monitor dip...

Try the Cad Concours chip set; factory says 130 max. Or the STS chip set, said to be 150 max. Have not tested either....yet. Also might try GM Parts Direct site.

I have a 99 DeVille Concours and a 05 SRX V8 N* & love both. I recently installed a Volant CAI on the SRX but have yet to compare results. Volant uses the stock MAF on their package; it increases noise above stock but much less than the K&Ns I've seen. Suggest the Great Air Intake Challenge...