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1990 Buick LeSabre Questions

Get answers to questions about your 1990 Buick LeSabre at RepairPal. Find solutions, diagnose problems and get back on the road.

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83
questions

they seem to doing the job but at some point they need to be replaced or how do you check them to see if there time has come. 98,000 on the vehicle. thanks

The check engine light came on showing dtc65. I looked it up and it said "Right bank O2 sensor rich exhaust indicated" Have any what that means? Thanks.

My gas gauge was working fine. I went in to fill up my car and after I was done the gauge only read a half a tank. I know the car is full of gas. Do you have any ideas what it could be? Thanks.

My car has 98,000 miles and the fluid on the stick looks fine. It shifts like new but what about the age on the fluid. Does it break down over the years? I don't think its ever been changed. Thanks.

I am replacing my front brakes and rotors and need to know what size of wrench I need so I can purchase it when I get my parts. Thanks.

buick lesabre

The noise sounds like it may be coming from the rear, almost like the parking brake is stuck but I don't believe it is. I thought maybe it was a wheel bearing but it doesn't seem to do it in neutral rolling down a hill and I'm pretty sure it's in the rear, and not coming from the transmission/engine. It's actually a 1986 lesabre thanks for your help

the car idles fine. it does this whether the engine is warm or cold and only lasts a minute or two. dtc 41. thanks

the camshaft sensor and EGR valve have been replaced.

I came to a red light and stoped and tried to go again n it would not move i tried all gears n the only one that worked was reverse it showed no other signs before that i was going to break down idk whats wrong.

I have to go back to neutral and then drive to get it back in gear

It's actualy a 1988 model. The list didn't have that choice.
The wiring harness is made by Precision.
I've got 4 wires. 2 for the pump and 2 for the fuel gauge. I know which wires go where on the pump and on the fuel lever sender. Which slots do I put the wires in on the 4 wire plug?

It also looks like 1 of the wires in the 4 wire plug isn't going to connect to anything. What's up with that?

my car wont start up

i have a lesabre that runs but when it idle rough and some times shouts down changed plugs wires and egr fuel filter just cant figer it out

the right ohms and coils arnt getting a signal have replaced crank sensor and ignition module and ignition module is getting power and ground and signal from crank sensor tryed a diffrent computer to nothing works car died while idling then started back up and shut right back off and now wont start what else could it be please help and hook up a snap on diagnostic scanner and it gave us nothing