I have had the spark plug change, new ignition cap, new plug wires, newfuel filtter. The coil was found to be OK. Problem isgetting worst. I have added cleaner in gas for fuelinjectors. The check engine light come on around 60 MPH and thenresets in about day.
SOURCE: 1991 Olds Bravada 4.3 v6 rough idle and backfiring.
Ok guys, let's fix these things here!
Just went through this myself, so do the following:
Go to your local parts store and buy a Haynes Repair Manual.
You need to read the book first, learn how the ECM (Electronic Control Module) works. You'll see that there are alot of sensors and components that make up the fuel emissions bologna.
The nice thing about this system is not only does the ECM control all electrical functions, it also trouble-shoots it's self. When a component or sensor goes out, the ECM stores a code for that event in it's memory. You can use the Haynes Repair Manual to put the ECM into diagnostic mode and thus read any codes present.
So, all that's left is replacing what the EMC tells you too! :) Good Luck!
SOURCE: 1993 Oldsmobile Cutlass Ciera S 6 Cyl 3300 Speed Problem
Yep...try replacing your coil pack....
SOURCE: car forces me to slow down
I doubt it is a speed sensor. It is in the transmission near the passenger side cv axle. Have you scanned it for codes? You can do it with a paperclip.
SOURCE: computer at auto parts place says misfire on cylinder 5
Try replacing the fuel pump too.
Good.
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SOURCE: Engine Not Responding/ Not getting power
Could be the other coil pack. Be sure to check and clear all codes stored.
Testimonial: "I forgot to post back! New coils were purchased and I personally replaced them. The car ran 100% better than before! Thanks fer the help!!!!"
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I have a 1996 Olds Bravada - one day it wouldn't start, thought it needed a new battery. I was told that it was an electrical problem, by one mechanic and another said that it needed a tune up. After the tune up and new battery - same thing - once you get the car jumped it will run,but when you turn it off you can't get it restarted. After replacing all plugs, ignician wire & starter, carborator, fuel pump - had altinator checked - engine looks brand new...... $1,500.00 later - same thing - it started up at the mechanics, but I took it home and the next day same thing.... I took it to an electrical guy... He replaced a few bad fuses, but couldn't find anything wrong. so far so good it has been starting, but I'm not too confident that the problem has been solved. Any ideas??/
My 97 has the same problem. It will start with no problem all summer, but as soon as the temps go below 40 the engine won't turn over. If i continue to turn the key it will turn over but that could be anywhere between 5 turns to 50 turns of the key. The dealer can't seem to solve this one either.
i have the same problem and have done a lot if stuff like u listed please help but mine is 2001
has anyone tried the oxygen sensor.
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