Top 20 1998 Buick LeSabre Questions & Answers

1998 Buick... | 29 views | 0 helpful votes

Free wiring diagrams here
Enter vehicle info. year , make , model etc.... Under system click on HVAC ,under subsystem HVAC controls . Click the search button then click on the second to last blue link.

1998 Buick... | 123 views | 0 helpful votes

Unplug the blower motor connector then jumper 12vdc to the spade sticking out of the motor it should run if not replace it. If the motor you get comes without a fan don't loose the spacer under the fan they are special. I hope this helps, Take care. If you have further questions or just want to say Hi! Use testimonial. Thanks

1998 Buick... | 57 views | 0 helpful votes

Pump is inside the gas tank

1998 Buick... | 145 views | 0 helpful votes

Park neutral safety switch , try moving gear selector to neutral . If that doesn't let it start ,viewing wiring diagrams an testing the starter electrical circuit's with a DVOM - digital volt ohm meter .
How to voltage drop test starter motor circuit
Electric Testing Techniques You Need to Know

Learning the correct way to test will avoid hitting those walls .
Free wiring diagrams here Enter vehicle info. year , make , model an engine . Under system click on engine ,then under subsystem click on charging . two diagrams , one is the starter electrical circuit . Click search button then the second blue link. Is the security light lit on the instrument cluster ? This will keep it from starting .

1998 Buick... | 307 views | 0 helpful votes

1. Insert key in ignition and leave in the OFF position
2. Locate the Data Link Port. It is located under dash drivers side. Be sure you know which pins are 8 and 4. (Note port is wider at top) Your OBDII port will not
have numbers.

3. Make sure there are metal contact pins in terminals 8 and 4. Connect 8 to 4 with a
suitable jumper wire (leave the jumper wire connected throughout the programming
procedure). Make sure you know which terminals are 8 and 4. The vehicle will respond
by locking and unlocking the doors to signify entering of programming mode.

4. Close doors.

5. Turn ignition to the ON position (as far as you can go without cranking the engine).
Doors will lock.
6. Press and hold both the LOCK and UNLOCK buttons together on the first transmitter to
beprogrammed. After about 15 seconds, the vehicle will respond by locking and
unlocking the doors. Release the buttons on the transmitter.7. Within one minute, repeat the previous step on the remaining transmitters to be

8. Remove jumper wire applied to the OBDII Port.

1998 Buick... | 106 views | 0 helpful votes

Hard to say - using the data port to program a remote is unusual, and depending on what device or procedure you used, you may have screwed up the datalinks. You should start by using a code reader to see what trouble codes exist.

1998 Buick... | 88 views | 0 helpful votes

Don't waste your money on unnecessary sources and unwanted repairs...
Get this manual online under $10-15 and get complete guide on whether to repair or not, service it, and how to repair etc

1998 Buick... | 37 views | 0 helpful votes

Wiring, schematic, electrical diagrams, fuse d iagrams etc are basic contents of these online books they sell here on this website
or also try manualslife com
both have very good mechanics

1998 Buick... | 28 views | 0 helpful votes

voltage is a bit low. have you tried rotating the engine by hand with a socket on the crank., just to see if the engine is free to move. if the starter engages but not turn, it could be the voltage as they can be regulated this would stop it from flattening the battery via the solenoid, its usually around the 11 volts mark on some types. as low volts will damage the battery. or the battery amperage is not good.

1998 Buick... | 31 views | 0 helpful votes

Try spraying some carb. cleaner or starting fluid into the engine . If it starts you have a fuel delivery problem , if not check for spark .

1998 Buick... | 46 views | 0 helpful votes

What shop did you take it to ? The charging system on your vehicle is computer controlled and so is the volts indicator gauge. Have you tried the buick dealer ?

1998 Buick... | 80 views | 0 helpful votes

Is the security light on and flashing? If not the problem is not the passlock, but if you wish to bypass it here is how you do it. How To Permanently Disable GM PassLock System

1998 Buick... | 629 views | 0 helpful votes

Hey Baptized,
You need to replace ALL the gaskets that seal coolant from ANYTHING... You may have a cracked head, cracked intake manifold,, or at worse a cracked block - between the coolant passages and the combustion chamber area...If you have a aluminum intake and cast iron heads.. this is a potential leak creator when the engine gets hot and cold quickly...make sure ALL the gasket surfaces are CLEAN.. and use:

DO NOT use silicone sealant - period!

1998 Buick... | 68 views | 0 helpful votes

Sorry, But that's still a major issue. Is it a GM module or after market?

1998 Buick... | 80 views | 0 helpful votes

Take your Buick to a shop where they can actually identify the head gasket leak.

1998 Buick... | 132 views | 0 helpful votes

The 3.8 L is not included with the list of GM interference engines. So it is NON

1998 Buick... | 213 views | 0 helpful votes

Could be other bad pulleys. Look at the belt inline with the pulleys. If one is bad, you will see it misaligned. With the belt off the pulleys should have very little to no play and should turn by hand smoothly.

1998 Buick... | 43 views | 0 helpful votes

Try to find it in a junkyard

1998 Buick... | 24 views | 0 helpful votes

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