Cranking and not starting

Tiny
WISDOME
  • MEMBER
  • NISSAN MAXIMA
Hello

the car is a 1997 Nissan maxima. 3.0L
when ignition is turned on there is cranking and will not start.
1-we checked for power and there is power. **Where did you check for power**
2- we checked fuel there is fuel.**Did you see it or smelling it**
3 we checked for sparks there is a weak spark occasionally.**What color is the spark**
4-checked crank sensor, its ok.** How did you check it**
5-sometimes while cranking gives a backfiring sound.
still looking for the problem please advise.**Try checking the timing belt-if it has a distributor remove the cap have someone crank it over-is the rotor turning?**

thanks

Answer the above before we continue.

Happy Easter

Rasmatazism
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Friday, April 6th, 2007 AT 9:30 PM

4 Replies

Tiny
WISDOME
  • MEMBER
The car has EI ignition.
-we checked battery power, power to crank sensor, power to spark plug coil, power to injectors.
-we measured fuel by fuel gage pressue and volume.
-spark is one yellowish only once at beginning of each cranking.
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Saturday, April 7th, 2007 AT 4:57 AM
Tiny
RASMATAZ
  • MEMBER
Was it running fine but quit suddenly? The most likely causes here would be a failed fuel pump, ignition module or**** broken overhead cam timing belt****

What was the fuel pressure?

Do you know how to check the primary and secondary resistances on the coil. Yellowish-spark can be cause by a weak coil.
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Sunday, April 8th, 2007 AT 5:08 AM
Tiny
WISDOME
  • MEMBER
Was it running fine but quit suddenly? The most likely causes here would be a failed fuel pump, ignition module or**** broken overhead cam timing belt****

What was the fuel pressure?

Do you know how to check the primary and secondary resistances on the coil. Yellowish-spark can be cause by a weak coil.[/Quote:8be89d907f]

thanks for your input. Good advice. Yes we did check the coils and one was burned out so we replaced it.
Im new and dont knw how the site works. Want to vote for you how to do that?
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Sunday, April 8th, 2007 AT 7:45 AM
Tiny
RASMATAZ
  • MEMBER
Was it running fine but quit suddenly? The most likely causes here would be a failed fuel pump, ignition module or**** broken overhead cam timing belt****

What was the fuel pressure?

Do you know how to check the primary and secondary resistances on the coil. Yellowish-spark can be cause by a weak coil.[/Quote:6c6d17eecc]

thanks for your input. Good advice. Yes we did check the coils and one was burned out so we replaced it.
Im new and dont knw how the site works. Want to vote for you how to do that?[/Quote:6c6d17eecc]

Don't even know myself-I guess you click on the feedback lol!
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Sunday, April 8th, 2007 AT 8:58 AM

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