I have a 87 Buick Le-Sabre Limited, the engine was rebuild like 4 years ago, but the mechanic never got the car to start. And never came back the car cranks and the engine rotates, but wont start, by the engine rotating im guessing he did rebuild the engine correctly. Any tips on what to check.


*The engine still rotates even today.Edited by: TopDogg

 

just cause it's rotating doesn't necisarily meen it's a good rebuild. you'd be supprised how good oil is and how strong a starter can be.


Unfortunatly there are a butt load of things it could be. assuming he did the rebuild correctly (and You shouldn't assume cause you could be spending time/money for nothing) and you installed the engine correctly (again bad to assume this) Once you double check, tripple check then quadrouple check it then...


Do you smell gas when cranking?


Do you smell anything?


Are you getting spark? (check your plugs)


I don't remember but it that year OBD? if so blow some codes.


if it's rebuilt right and installed right, there is no reason for it not starting. so it seams to me you only have one problem, did the guy who rebuilt it fudge up? or did the guy installing it do it?

 

The same guy rebuild it and installed, but then left, how can i check for gas, and should i smell gas?how can i check if he rebuild the engine correctly, and also, yesterday i payed good attention to the throtle and saw that when you press the gas pedal it moves the throtle as it should, but it's also suppose to push a small manual pump(i think this may be a gas pump, but the car has it a gas pump in the tank), but doesn't because the leveler that pushes the pump is screwed on the last hole possible, so it doesn't get pumped at all, could thispump be a gas pump?

 

you should smell gas if the engine is installed/rebuilt correct. The Pump is in the tank, if what you are talking about is for the gas it's a throttle linkage that would goto some sort of sensor or something, that in turn would tell the pump how much to let out, if this is hooped then that may be a problem, But as far as I know there are 2 cables on your throttle leaver, ones for gas the other for air, if one of these is not moving at the same rate as the other, you'll have a problem. they are electronic and not a physical cable or wire, so if they are working properly by sight, it'll be a sensor.


As for checking to soo if re rebuilt it proper, it's not easy, and you'd have to take the shaft out and look at each piston, as well as the general condition of all your parts (heads pistons crank rings valves everything).


Hope that helps a bit

 

This is the pump im talkign aboutbut note this isn't my actual engine, and you can't really see the pump that much but i circled it in yellow, so maybe you could tell me if this is has something to do with gasoline or not, and this pump is not electronic at all. Does anyone know what pump this is.


http://groups.msn.com/aetr8s2tk16q6h...q51/zonephotos. msnw?action=ShowPhoto&PhotoID=1

 

I"m not sure, but I know it's not your gas pump, that is in your tank. to me it looks like your MAF. Is it right after your intake? the picture is kinda hard to see the part, maybe a closeup? anyways, I doubt it's a pump of any kind. If you find the manual for your car, it'll map the engine compartment and list everything.

 

I did buy the Chiltons repair book, but it's 75-90 so it dont really help at all, I do have the manual so ill take a look at the manual. But im pretty sure it is a pump.

 

I'm sure it's not a pump for a few reasons, but hte main one being the only pumps not on the belt are your fule pump, and your windsheild washer pump, and I know that is neither of them, your fule pump IS in your tank. and if it wasn't it would be only a few feet away from it.. The more I look at it the more I think it's your MAF (mass air flow) sensor. if this was busted, your car wouldn't start. when it starts to go, you engine stalls along with real ruff idles, to test your maf (if it's not 100% toast) tap on it (the black plastic box on the maf) and if your engine stutters or stalls it's hooped. if it's 100% toast your car won't start.


If you think it's your fule pump that is your problem, have someone crank your engine while you hammer dead center on your gas tank with a rubber mallet. This usualy gets them going unless it's totaly fried.


BTW, haynes books are better. you can find them many places they have a website, and they cover your car. www.haynes.com

 

I'll check where the line going to this part is from. But this looks like a pump, because its comes one way and out another, to the lower part of the engine. Ill check and let you know.