Hello y’all I’m very new to the car scene but here’s my problem, So I was on the highway going probably 15 mph maybe less maybe alittle more but my Alt belt snapped and my car just stopped but I replaced it and now my car cranks but doesn’t start even with a jumpstart someone said it is the timing belt (I just replaced it like less then 200 miles ago do to water pump being bad so I had to buy the kit that had timing belt included) but if it is is there a chance my valves got damaged and if they did would my car start or just keep on cranking but not starting? Or what can be another issue I have if I replace the belt but it doesn’t start??? Please help asap!!!

 

Watch out! Was there any hardware loose on the alternator?! I believe one of those bolts is a ground. Could possibly fry the ECU. Know that sounds crazy but we've had a couple cars come in for that.
If you think it's the timing belt you could pull the top valve cover off and remove the top timing belt cover. There is 4 marks you have to watch out for 3 on the cam pulley and 1 on the harmonic balancer. I believe ours engines rotate counter clockwise

 

My 2002 civic DX has done the same, I deleted AC belt. Or went to shorter belt and skipped the AC pulley. Now it cranks and doesn't start... ECU? Why?

 

[QUOTE=MSGuy71;52821712]My 2002 civic DX has done the same, I deleted AC belt. Or went to shorter belt and skipped the AC pulley. Now it cranks and doesn't start... ECU? Why?

Here's something I found on another thread


​​​​​​​The alternator mounting bolt is the ground for the alternator, if it falls off or loosens the resistance will shoot up and the resulting voltage surge will burn through the underdash fuses and fry the ecu (it may not blow a single fuse because the current has not overwhelmed them.) Think of what would happen if your car was on and you removed the negative battery terminal, the car would try to ground through other means and fry things!!

 

Thanks I'll check the ECU.

 

​​​​​​Any luck figuring out what was wrongs?

 

I believe I did fry the ECU...I am in the midst of getting it repaired.

 

I had my ECU repaired and should have back by Friday...I'm going to reinstall it, supposedly no flashing or programming involved...( So They Say, but they say alot, don't make it true)

 

Well update, sent ECU to be rebuilt....re installed (original ECU was evaluated and repaired by Module Experts, Jacksonville Florida) put new sparkplugs, new Crankshaft sensor, and new camshaft sensor (TDC). Kinda tried to sputter and then all crank no start....any ideas ...would definitely be interested in any at all. Thank you in advance.

 

Does everything need reprogramming or anything?

 

Does there happen to be that green key on the dash flashing while your trying to crank. If so It will prolly need to be programed. The immobilizer might not be talking to the ECU.
What brand you go with the sensors ​​​​? Everything plugged in? @@@@@@@

 

No sir it doesn't. Everything is as it should be....I think....lol. I'm flummoxed....to say the least...!!

 

Thirty p.s.i (+ -) 2 p.s.i across all four cylinders. Now I'm at a loss...already spent close to 400$ for a fella in disability....it's a fortune...