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My 1990 lesabre will not start when its hot - Cars & Trucks

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I have a 1990 Buick Lesabre, it will start when cold, but not when its warmed up at all. If i let it Idle for 5 minutes and turn it off and back on it wont start. It seems to run fine when it does turn on...


Hello: I would first check the coolant sensor then the fuel pressure then also check the vacuum line going to the fuel pressure regulator. If it has gas in it the regulator is bad.

Jun 22, 2011 | 1990 Buick LeSabre

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Where is the ignition control module located on a 1990 buick lesabre


For 1990 Buick Lesabre 3.8L FI OHV 6cyl the Control Module-Ignition is located: Under hood, passenger side, front engine area, mounted on upper passenger side of cylinder head under ignition coil.

Hope helps (remember to rate this answer).

Apr 11, 2011 | 1990 Buick LeSabre

1 Answer

Engine will not restart (no spark) after running ten minutes or so.


check voltage at coil when it will not start ,maybe getting hot

Nov 05, 2010 | 1990 Buick LeSabre

1 Answer

I have a 1990 buick lesabre that wont start


Timing chains do not go bad on a 3800. The old 3.8 b engines did. Try a crank sensor. My timing set in my 3800 has 293500.00 miles on it.

Jan 06, 2009 | 1990 Buick LeSabre

1 Answer

1990 Buick LeSabre cutting off, getting no spark, 30 mins starts


Replace crank sensor. Next time it cuts off pour or spray water on it, to cool it down and if car starts that is what it is. I did this to get my car home to fix it. Next thing I would look at is the coil module if crank sensor does not fix it.

Dec 21, 2008 | 1990 Buick LeSabre

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1990 buick lesabre - 3.8 liter. won't start, it's not firing.Is there anyway to bypass the camshaft sensor or crankshaft sensor. And should the coil pack have 2 hot wires going to it with the ignition on...


no u cannot bypass the sensors 1 hot and 2 signal wires. test the sensors if u got no spark from any coil and the sensors are good replace the ignition controlle modgule... the coils are mounted on top of it
dont forget to rate me

Dec 10, 2008 | Buick LeSabre Cars & Trucks

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