Question about 1991 Cadillac DeVille
Posted by Anonymous on
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Posted on Jan 02, 2017
Hi,you can run a fuel presure test to see if the fuel pump is working properly, you can also run a timing chain text ,this is a little complicated but you may be able to do it , take the distribuitor cap off,with a ratchet turn the crankshaft back and faward,if the rotor takes to long to move the chain is worn out,this can cause loss of power, I hope this will help.........
Posted on Aug 24, 2008
I have found this site most useful in repairing our car. You might try it too. I have posted it below.
Posted on May 05, 2009
I have a 1991 Cadillac Fleetwood 4.9 120000 miles, I have the same problem. replaced plugs,wires,cleaned throttle body, and O2 sensor and have same problem. Taking it to a GM shop on 02/24/10.
Posted on Feb 23, 2010
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