Question about 1991 Cadillac Fleetwood

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I have a 1991 fleetwood cadillac with a 4.9 v8 engine in it.I replaced the wires,sparkplugs,fuelfilter and airfilter.But my car still runs slugish.

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This sounds like it may be as simple as cleaning the water or gunk out of the gas tank which is what I always do 1st because it's easy and inexpensive.
Fuel Systems always gets contaminated with carbon buildup, gunk, grime, water and/or bottom junk like rust and this will cause the problems your having!
Fill the tank with High Test, Add some dry gas and a good fuel system cleaner or 2 or 3 and this should dissolve all the gunk and clean the injectors!
Read & follow the cans' instructions carefully.
If this cures the problem never let your gas tank get below 1/4 and especially never run it to empty as this is when the gunk and/or water will enter the system!
jackiaria

Posted on Mar 08, 2009

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I do not know if you have the Fleetwood Brougham with the 5.0L V8, or the Fleetwood FWD (Front Wheel Drive) with the 4.5L V8; however I have included both below.

For the Fleetwood Brougham 5.0L V8:
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......(back)......
|..8............7..|
|..6............5..|
|..4............3..|
|..2............1..|
......(front)
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For the Fleetwood FWD (Front Wheel Drive) 4.5L V8
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
..........(back)..........
|...2....4....6....8...|
|.........................|
|...1....3....5....7...|
..........(front)
Distibutor:
......(back)
.........4
..3...........8
6.................1
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.........7
......(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

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53d6dfc.gif
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