Question about 1989 Cadillac Eldorado
Surging, loss of power. backfiring through exhaust, poor idle, will not make it up a hill, looses poert & hesitats, ALL this is INTERMITTENT! then ill run for 100 mils like a new car.. New plugs, wires, cap rotor, coli, TPS, fuiel filter, catalytic congerter, egr valve. I noticed a funky looking connector to the coil prinary, the plastic retailer just fel out when pushing the new coil connector down...THAT was a pain to relocate from upside-diwn and reconnect, but it still puzzles me.. Expensive additives of all types recently added, high grade fuel, Any ideas, please..
Check map sensor and vacuum hose going to it. Check tps for binding or sticking. Is tps adjusted correctly? What are the codes? This car has an on-board diagnostic center that you can check all of this while sitting in the car. Fuel pressure should be 9 to12 psi. according to service manual and you need to hook it to a gage for that. . Check timing, it is a certain procedure to set timing on this car that involves going to a "set timing mode" on the diagnostic panel and crossing some connectors. You can also set the tps with diagnostic panel readout. Check for water in fuel system. Check egr ports and vacuum supply, to egr valve also egr solonoid.
Posted on May 20, 2009
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Posted on Jan 02, 2017
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