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Old 04-04-1999, 09:01 PM
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this has shown up over the last couple days and seems to be getting worse
the car is a 79 280ce m110 engine
always strong, great runner, i have always kept it well tuned,ie, good cap,
rotor,wires plugs, filters,etc. new fuel pump and injectors 2 years ago, new filter 1 mo ago.well heres whats happening . car is cold from overnight. start the car
fires up right away starts a higher rich idle like its warming up then
starts to slow down like its going to die, then speed up and slow down,
does this maybe 6-8 times before leveling to a steady idle
then as we start to drive off as i give it gas it cuts off fast and starts chugging
the more gas the less anything happens then it dies .it will restart but i
have to put the pedal to the floor and keep the gas on and the engine speed
up to keep from chugging. here is a clue maybe. all this happened just
a while ago, we had to drive 120 miles to get home. well up to speed on the
highway all the power was there no problem when i stepped on it going 80 it
flew up to 100 in a hurry just like always.
drove home great until we got it back down to street speed then i couldnt
step on it without missing and chugging again. im thinking distributor? .any ideas would be really appreciated.let me know what other kind of things you might need to know
Old 04-04-1999, 11:08 PM
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It sounds like it is running lean. For wat reason? I don't know.


Old 04-06-1999, 07:41 PM
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The fuel mixture sounds like it is too lean, you also should check the compression as these engines can jump timing on the intake camshaft. Remove the valve cover & inspect the cam timing. Look around the engine ares for loose vacuum lines that could lean out the fuel mixture.
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