Top 20 1994 Buick LeSabre Questions & Answers

if a 17 mm bolt head then around 90 lbs if 19mm then 120lbs

At this website www.reliable-store.com I found all complete guide,much better language, complete detail in 800+ pages, ..and they also have live chat for instant help feature

If it is a 3.8 engine change the crank sensor,they go bad on the 3.8 engines.

Your best bet ,take it to a qualified repair shop that has the proper knowledge an testing equipment . 003 Fuel System Tests Scan Data Tests 003 Engine Peformance Tests Scan Data Tests

check the catalytic converter for being clogged you do not always get a trouble code for a clogged cat

no the crank shaft sensor would not stop it from turning over

Classic signs of coolant in the oil and since heads were repaired and sealed, it could be a cracked block. Coolant is mixed in oil and coolant impedes lubrication of engine thus hard to turn over and start. One last hope is to drain crank case, refill with fresh oil and new filter. Add Barr's leak "copper" )(looks like liquid copper and costs about $10) sealant to coolant fluid. Run the engine a few times to full warm up, each time observing for tell-tale white smoke from exhaust. Check dipstick level between each cycle. If problem subsides, go buy a lottery ticket as you're very lucky. If not, a new engine or short block is on the menu. Good Luck

The ECM may be dead .

Any codes?

Check the actuator motor and rods on the heater box inside. The motor moves the doors in the heater to direct the heat to the area you request. It is a small motor on the driver side or in front of the heater above the dash.

http://www.autogenius.info/buick-lesabre-1994-fuse-box-diagram/

Could it be coming from the dash??? That car might be old enough to have a speedo cable. Another thought, I know some Caddys that had an automatic park brake release. You had to put it in gear for the Park brake to release. Hope that helps.

1. Most likely a loose spark plug wire or a vacuum hose is off.
2. look over the engine while running listen for hiss to find vac leak and look for sparks around plugs and distributor
3. turn off
4. plug vac back in and check both ends of the plug wires so there snug

Hope this helps Mike

Could be clogged fuel filter or bad fuel pump.

It should be located on the drivers side left of the steering column as sitting in the vehicle. It is normally attached to a spring clip.

Use a ratchet with the correct socket. You will probably also need an extension to reach the bolt.

Why? If you think it is a fuse problem, why not just check them all?

The voltage for fuel injectors go hot with the key on. The computer switches the ground on and off, check voltage and ground. If the computer doesn't ground the fuel injectors, you'll have voltage on both legs. If computer doesn't see rpm signal, it won't ground the fuel injectors. If no rpm signal check the crank sensor and ignition module, plus wiring circuits. Don't replace anything unless your testing points in that direction.

This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/

try jumping the battery while you try starting.