Help...my 1990 Q45 will not crank...

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Q451990owner
Posts: 73
Joined: Sat Aug 10, 2013 5:35 pm
Car: 1990 Q45 w/86,000 miles that was sitting 10 years

Post

I changed the bad fuel injectors, the car ran for a week great. I was wondering what else would go wrong after having the car sit for 12 years....

So a couple days ago when I started the car, the ignition did nothing, no crank, then I tried again and it cranked and started right away like always.
Then again yesterday, I tried cranking the engine, nothing. There is power, battery full, all lights turn on, but when I turn the key to crank the engine nothing happens. No cranking noise nothing.

I checked the fuses, they all look ok. What can it be?


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MR. Q
Posts: 171
Joined: Wed Apr 27, 2005 6:23 am

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It could be the starter, fuel pump, a list of reasons. I think it would have to do with fuel or electrical.

Q451990owner
Posts: 73
Joined: Sat Aug 10, 2013 5:35 pm
Car: 1990 Q45 w/86,000 miles that was sitting 10 years

Post

It's not a fuel issue, the starter is not cranking, besides I have a new fuel pump and injectors. It has to be electric, as no juice is going to the starter

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BCC93QT
Posts: 1385
Joined: Tue Feb 12, 2008 3:20 am
Car: 1990 Infiniti Q45
1995 Infiniti Q45
Location: Western MA

Post

Had the same issue. Try replacing the starter relay/ignition relay which is only about $20. If you open your hood its the little blue square type thing in the rear passenger side of the engine bay. Next to the ABS unit.

Image

Q451990owner
Posts: 73
Joined: Sat Aug 10, 2013 5:35 pm
Car: 1990 Q45 w/86,000 miles that was sitting 10 years

Post

Thanks. I bought one for $20 , I will try to put itin and see

Q451990owner
Posts: 73
Joined: Sat Aug 10, 2013 5:35 pm
Car: 1990 Q45 w/86,000 miles that was sitting 10 years

Post

Wow you are a genius . God bless you. It worked like a charm. Who knows what a shop would charge, $90 diagnostic+ $50 labor and $45 for the part ....
These thieves .

Thank you

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elwesso
Posts: 30810
Joined: Sun Feb 23, 2003 4:52 pm
Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
Location: Indiana
Contact:

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Yeah most common cause for no-crank is the starter relay. Sometimes you can take it out and beat it against something and it will start working again.. The contacts in there must get corroded or something.. :)


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