Sunday, November 21, 2010

1993 Pontiac 2.3 changed water pump, now no start?

I changed the water pump on a 2.3 liter Pontiac engine, now it cranks but won't start. Timing gears were locked in place during work, so timing is probably OK. How can I check the alignment of the timing gears to verify correct timing?1993 Pontiac 2.3 changed water pump, now no start?
If the timing gears were locked in place and you did not remove them, then that is not your problem.

Retrace your steps and see if you knocked a wire off or maybe you forgot to reconnect the crank angle sensor during reassembly.1993 Pontiac 2.3 changed water pump, now no start?
Notes: biennial oil changes and water as coolant= bad ideas. :(



This engine also had valve lifters that were so full of grit they wouldn't compress at all.

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I have a '92 w/2.3, and I've changed the water pump...trying

to remember what is close by.

Maybe you unplugged the injector wiring harness?

Also check the wiring going to the ignition module (under

the aluminum cover)...may have pulled out.
Sounds like it hydralocked on you. For what reason did you originally change the pump? Overheating? Possible Coolant loss? These engines have had many coolant related problems historically, and often can be attributed to cracked blocks and cylinder head failures. This may have been the original problem.
you don't mess with your timing belt? if you do so you have to put on time
I gaurantee you that the timing is off..trust me..when you released the tensioner it may have jumped a tooth or two..i have a 94 grand am i just did a water pump on..remember all the gears..crank and camshaft(s) dots have to be lined up perfectly..no room for error.
only a auto shop can tell you i am pontiac master tech and the only way to check for timeng alignment is to remove cover from passenger side of engine and check all marks.if the car was running when you carried to have water pump installed it is a problem with the timeing being out of alignment i have done many many of these and the job takes 8 hours to do i that is to but a water pump on this car .its is very easy to get out of alignment and even harder to correct. but if car was not running before installing water pump the problem could be ignition module,with is about 400 to 500 hundred.fuel pump 300.00 or crank sensor these are the only things that will stop car from running other than no gas. this is one of the hardest engines nown to work on so always carry to a pontiac dealer normal auto shops are a wast of time and money and generaly only make things worst. hope this helps.

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