I hav a w reg lanos 1.4 8 valve engine it stopped working and the garage said it needed new plugs and leads .replaced them and it still not working ,garage says it needed replacement valve and tappits ,replaced them andput a new timing belt on and now engine wont fire and not sure if timing set right as dont know settings for timing .can anyone help please .
This happened to me, only she was misfiring as opposed to not firing at all, i got the plugs and leads replaced (one needed a helicoil as the threads were worn) but chevrolet themselves did the job on it and told me the the camshaft was blocked with old oil, they flushed that and reflashed the ecu, and she was right as rain again
however it could be a timing problem? not too sure of timing procedures!
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Normally, only 2 things stop a diesel from firing: 1. no fuel 2. not enough compression
No fuel can be caused by (obviously no fuel) or a failed fuel pump. To test, have someone turn the engine over and then sniff at the exhaust - does it smell of unburned diesel? (If you've run out of diesel recently, you may have an airlock in the system, this needs bleeding out.)
Not enough compression needs specialised equipment to test - that's a garage job.
1. Engine on-dissconect the power lead to the [idle speed control valve] located on top of the engine.
2. turn engine off-
3. turn engine on, you may need to use throttle to start and to reach and hold tick over speed. Once tick over is achieved, re-connect the power lead the idle speed control valve.