Question about 1994 Cadillac DeVille

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Water in engine

I have a 1994 cadallic w/ 4.9 engine. I am told can't be rebilt/ or should not be rebilt ! I have put many $$$ into her in the last year ( shocks & struts,air conditoner-all dealer,other parts , Mischlin tires etc... Hot engine lite came on, pulled over, engine did not appear to be very hot,was running a little rough,found water(foam) on dip stick. Has any one had luck w/ heal-a-seal ? $3,000 to have a used motor installed & take my chances ! dan c.

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This engine has an aluminum block with iron heads. Not one of GM's better ideas. The engine should not be rebuilt as the block may have bigger issues now. Your best bet would be to find another engine.

Posted on May 27, 2009


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Posted on Jan 02, 2017


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So my 2005 mazda rx8 is in the shop, my cadalic converter went out got it replaced and now their saying it won't start first they said they THINK its the coal then spark plugs then starter now their...

I would not let them sell you an engine. The river design could just be traction control problems. Looks nice on photo. If money was not an issue, I would say load it onto a car carrier or wrecker and take it somewhere else.

You need a second opinion. Also, depending on State Law, some car lots must give a 3000 mile, 30 day warranty unless you bought it from a private owner. Check your laws.

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1 Answer

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Engine Firing Order: 1-8-4-3-6-5-7-2Distributor Rotation: Counterclockwise


Hope this help.

May 15, 2010 | 1994 Chevrolet C1500

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How do i release a parking brake on a 1994 cadallic deville

the release is the handle at the left lower area of the dash. if not working the actuator maybe at fault

Mar 03, 2010 | 1995 Cadillac DeVille

1 Answer

Engine over heats 2000 cadallic deville northstar engine

flush your radiator first.with the thermostat out you should see the water moving if not bad water pump.this engine needs the thermostat to function properly and either a 50/50 coolant or straight coolant so it does not boil over.also make sure your fans are coming on

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1 Answer

1994 corvette

Your engine may look nice but the electronics on it absolutely don't like water. Unplug every connector and dry them out, one at a time and hope for the best. The entire system reads subtle changes in current...water will change those readings enough for the computer to get totally confused. Also, check inside the distributor cap...often water will steam off the engine and condense inside cap causing ignition system to cross-fire.

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1994 chevy cheyenne smokes

If its white Check your water is keeping its level Could be head gasket bown.If its blue then its burning oil witch could be valve stem seals or piston ring wear,

Jun 03, 2009 | 1994 Chevrolet C1500

1 Answer

Throttle sensors going bad

I had similar problem with my 1994 Buick LeSabe. after clening EGR valve and idle valve the problem almost disappeared. use trottle body cleaning liquid. be carefull with a gasket otherwise you will need to buy a new one. New EGR cost around $12037e8c8b.jpg

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