99 Lesabre Won't Run

[Cathy Sanders]

I have a 99 Lesabre with 160,000+/- miles on it. The radiator busted some months ago and the car overheated and ever since I have trouble with it. I will get it running and it will run for awhile and then something else will happen. This last round however I can not seem to get it going and the car only gave one code P0100 which I have fixed.

The car was not running correctly, was shuttering when going up hill or needing to speeding up. I have checked all fuses and all are fine.
Now the car will not even idle or pull out of it's tracks. It acts like it is not getting enough gas and now there are exhaust type fumes coming out of the engine compartment. As I have said the one code that the car was giving has been fixed, so there are no codes being thrown now. I am at a loss now as to what could be causing this problem.

The following is what all has been replaced:

Fuel pump -- before car was bought and was working fine -- can hear come on when key is turned on
Fuel Filter
Mass Air Sensor-- code
Throttle Control Sensor
EVAP connection
spark plugs
wires
radiator
transmission filter and fluid change
oil change

Any help that you all can give would be much appreciated.

 

[MelsRegal]

do you have lots of white smoke coming out the tail pipe?
do you have a creamy brownish substance in the oil filler cap or on the dip stick?
is your coolant level dropping?
have you done a compression test?

 

[Cathy Sanders]

smoke is black at this point.
no water in oil and coolant level is remaining the same level
going now to do a pressure test.

 

[mikec6201]

Black smoke ? Must be running real rich , but no code ?

 

[HotZ28]

and now there are exhaust type fumes coming out of the engine compartment.

You should have the exhaust system back pressure tested. Clogged cat can cause many symptoms mentioned. You may have other problems, but the exhaust back pressure needs to be eliminated before moving on to the next possibility.