Phil,Sounds like my 2004 Yukon Denali. Engine off oil pressure zero, turn on
and it goes full scale and then back to zero when off. I read somewhere that
was an indication of oil pressure sender. Replaced mine and fixed it and now
acting normally.If your suburban is laid out like the Yukon (should be) I
needed to get the socket at a FLAPS since now of mine would get a good bite on
the sender. $43 for the sender and some bruised knuckles. Suggest laying down
cardboard and maybe a towel over the engine so you can lay on the engine a bit
more comfortably. Be careful with the sender I snapped the top on one and had
to beg for a replacement. Good DIY but will require a few swear words
--John Henard
> Date: Sat, 14 Dec 2013 05:48:50 +0000
> From: pethier@comcast.net
> To: shop-talk@autox.team.net
> Subject: [Shop-talk] Oil-pressure gauge goes nuts on Suburban.
>
> 2004 Chevrolet Suburban. Picked up my truck after it had been sitting out
in the 11-degree-F cold for a while. Started OK. The oil-pressure gauge was
pegged WAY past the end. Stopped the truck after it was warm and went into a
store. Came out and turned on the ignition. Needle went to full scale.
Started the engine and needle went to full-on pegged again. Stayed that way
until I shut it off in the garage. Needle went to zero. Ignition on, back to
full scale. Restart engine, back to superpeg again.
>
> All the other gauges seem to be acting normally.
>
> Anybody else ever seen anything like this?
>
> Phil Ethier West Side Saint Paul Minnesota USA
> 1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
> 2004 Suburban 8.1, Sport Red, the only automatic of the bunch
> 2005 Lotus Elise, Bordeaux Red Pearl
> 2007 Saturn Ion 3 2.4, Berry Red
> pethier@comcast.net
> http://www.flickr.com/photos/pethier
> http://www.flickr.com/groups/triumphtransamerica
> http://www.mnautox.com
> http://www.mntriumphs.org2004 Suburban.
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