98 Lesabre engine light blinking
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Buick_Gal
2000 Buick Lesabre making Knocking noise
I have a 2000 Buick Lesabre, On cold days it makes a knocking noise that quiets after driving about 30 miles. It is not a ticking noise like an exhaust leak. The knocking sound gets louder as i accelerate, but I can still hear it when i start it. I have tried putting an additive in my fuel, thinking maybe it's bad gasoline, but I drive 70 miles a day and it has been going on for about 3 weeks now. On warm days, there is no noise. I've been checking the oil levels daily, and it is always fine. Is this noise normal??
Re: Car makes Knocking noise
Could it be that your oil is too thick- and till it warms up it's not lubricating your engine- it has been cold in most parts lately
Shade-tree mechanic
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rogerltate
- Posts: 1
- Joined: Thu Jan 03, 2013 10:37 pm
coolant sensor
I HAVE A 2000 BUICK LE SABER WHY DOES MY COOLANT SENSOR KEEP POPPING OUT?
Re: coolant sensor
Can you explain popping out?
Does it keep giving the wrong reading on the gauge?
Is it setting a code?
What engine size is in your Buick.
Does it keep giving the wrong reading on the gauge?
Is it setting a code?
What engine size is in your Buick.
Be sure to check the Similar Topics down this page for more help.
Buick Lesabre belt pulleys question
I have a '95 Le Sabre and it has the idler and tension pulleys that are flat and smooth not grooved. Will any grooved pulleys interchange with these and still use the serpentine belt? I have an oil leak I can't fix and it causes the belt to come of these flat pulleys. If I can change them out I will be in good shape.
98 Lesabre engine light blinking
Plenum replalced almost two years ago by neighbor. Took it on long drive afterwards and it had a very small misfire when driving it I could feel it. I let the car sit for almost two years and just recently had my mechanic look at it. He had to replace brake lines and fuel lines and fuel filter. He is not the person who did the plenum repair. btw, because of previous history with an olds I knew about the white smoke and dexcool and shut car off the first time I saw it and there did not appear to be much damage other than the plenum so the neighbor said.
My mechanic said the engine sounded fine and he took it for a ride. I picked it up two weeks ago and am having terrible gas mileage and smelling pure gasoline when I start the car and back into it. Engine lgt. is on. Sometimes blinking. Drives good. slight misfire when in D,R but not in P OR N. My mechanic is on vacation. I am a female. Ok, lol, what could be the problem. Thanks guys, so much.
My mechanic said the engine sounded fine and he took it for a ride. I picked it up two weeks ago and am having terrible gas mileage and smelling pure gasoline when I start the car and back into it. Engine lgt. is on. Sometimes blinking. Drives good. slight misfire when in D,R but not in P OR N. My mechanic is on vacation. I am a female. Ok, lol, what could be the problem. Thanks guys, so much.
Re: 98 Lesabre engine light blinking
An engine light blinking means that the computer has detected an engine misfire that is bad enough to cause possible catalytic converter damage. This is a federal law requirement for emissions.
By what you describe, it sounds like the "Fuel pressure regulator" is leaking gas. When they leak, gas goes into the vacuum line and cause a very rich condition, hard starting, running rough and engine misfire. It is not an external leak that would cause a fire, but it needs to be checked.
Here is a link to the 3800 engine fuel pressure regulator description and location.
By what you describe, it sounds like the "Fuel pressure regulator" is leaking gas. When they leak, gas goes into the vacuum line and cause a very rich condition, hard starting, running rough and engine misfire. It is not an external leak that would cause a fire, but it needs to be checked.
Here is a link to the 3800 engine fuel pressure regulator description and location.
Be Sure To Check The Related Topics below For More Help.
Re: 98 Lesabre engine light blinking
I have to say I am soooooo impressed with this site. First time on here and i looked around. IT is a spectacular site with diagrams of engines and all. You mechanics are soooooooo smart.
I definitely will follow up on the fuel sensor issue with my mechanic next week Butch. I usually don't drive much, but since I wrote my first post, I did go on 2 trips about 120mi each in the last few days and noticed the very low misfire I was hearing the last couple of weeks, got much louder now. I'm thinking when that plenum was replaced I probably did have other damage. OMG.... I can't believe it probably now it's cylinders or blown engine. Is that a possibility causing the gas smell and low fuel miles too?
I definitely will follow up on the fuel sensor issue with my mechanic next week Butch. I usually don't drive much, but since I wrote my first post, I did go on 2 trips about 120mi each in the last few days and noticed the very low misfire I was hearing the last couple of weeks, got much louder now. I'm thinking when that plenum was replaced I probably did have other damage. OMG.... I can't believe it probably now it's cylinders or blown engine. Is that a possibility causing the gas smell and low fuel miles too?
Re: 98 Lesabre engine light blinking
The same the misfire is getting louder?
If by saying the plenum was replaced, you mean the intake gaskets were replaced, then another possibility is that one or more of the rocker arm bolts has come loose. This is only on the 3.4L engine, not the 3,8L engine. I have seen this many times. This will cause an engine misfire, rattle/ticking noise and can cause a gas smell and poor economy.
But, check the fuel pressure regulator first.
Let us know if your car has the 3.4L or 3.8L engine.
Keep us up to date on this problem in your Buick.
If by saying the plenum was replaced, you mean the intake gaskets were replaced, then another possibility is that one or more of the rocker arm bolts has come loose. This is only on the 3.4L engine, not the 3,8L engine. I have seen this many times. This will cause an engine misfire, rattle/ticking noise and can cause a gas smell and poor economy.
But, check the fuel pressure regulator first.
Let us know if your car has the 3.4L or 3.8L engine.
Keep us up to date on this problem in your Buick.
Be Sure To Check The Related Topics below For More Help.
Re: 98 Lesabre engine light blinking
It's a 3.8 engine and all I know was the neighbor replaced a plenum and spark plugs. He did say everything else looked fine. As I mentioned I had the antifreeze ruin a 3.8 in an olds I had so as soon as I saw and smelled the white smoke, I immediately stopped using it. I sure hope it was soon enough. Mechanic is back from 3 wk. vaction today. I should get to see him soon. Let you know what he says.