Car has been serviced two months ago. There were no signs that the timing chain will give problems. Car was going nicely, but this morning it looks like there's no spark, yet new spark plugs
Very possible if car has over 80,000 miles
SOURCE: Timing belt replacement
From what you're describing here, the timing belt wasn't installed properly to it's timing marks from the start. You mentioned it ran rough when you got the car back. That immediately told me the timing marks were not correctly lined up. If the belt wasn't tensioned correctly, the belt will gradually start retarding itself to the point of it not running. You did mention that as well already too. In other words, the belt slowly got looser and looser until the valves were not opening/closing at the correct time and eventually the piston hit the valve due to the lack of the tension of the belt not being correct. I really fail to beleive that the tensioner went out "all of a sudden" especially right after the water pump was installed. The reason it is recommended that the timing belt be replaced at the time of the water pump is antifreeze/coolant will SLOWLY deteriorate the belt causing premature wear. This doesn't happen in a week either, this take a long time to happen. My professional opinion is the timing belt was incorrectly re-installed when the water pump was replaced. I've been in the auto repair business for a very long time (28 years) and I have seen this very thing happen when the customer tries to replace the timing belt or water pump themselves especially when there was a lack of experience.
SOURCE: 91 oldsmobile cust cruisr, shuddering, engine loping
do u have a OBD 1 scan tool? try and find one on ebay for your car, I sold mine some time back, was $400 new got $50 for it, but I fixed allot of problems like yours because it allowed me to look at real time engine data going to and out of the engine control computer (ECM)
SOURCE: 1995 Dodge Neon Sitting for a Year and wont start
Your ECM is located on drivers fender up near battery . Remove battery cable first, then remove the ECM & all the connectors attached to it. Get some electrical contact spray & clean both ECM connector pins on it, and the connector itself, down in mating females. Re-install after cleaning, & remove it again a couple of times & re-install, just to help clean up the contacts. Then lets see what you get. While your under the hood, look real close at all the wiring harnesses for signs of mice chewing through anywhere. Hook your battery back up & see if you hear fuel pump "hum" for a few seconds with key just to on position.
SOURCE: clicking starter=car not starting
the battery is located under the rear seat, check battery connections. if connections are tight replace starter.
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