1996 Infiniti Q45 bucking and stalling

DEREK JARVIS

MEMBER
1996 INFINITI Q45
V8
2WD
AUTOMATIC
14,300 MILES

I have a 1996 Q 45 and am having a problem with bucking and then stalling while driving.
The car run perfectly for about a half hour and then it will stall at red lights or worse when you are moving.
I'm thinking a MAF sensor but why does it run ok until it heats up?
Any suggestions?

4 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

Hi
More inclined to suspect crankshaft and/or camshaft sensors. Check engine light on? Tune up recent, filters etc?
Let me know
Thanks for donate

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Monday, May 18th, 2009 AT 11:57 AM

DEREK JARVIS

MEMBER
2 POSTS

The check engine light does come on. I have a new air filter in the car. Haven't had a tune up in a while.
How expensive are these sensors you mentioned and how do you check for them being bad?
Cheers Derek

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Tuesday, May 19th, 2009 AT 9:49 AM

DOCFIXIT

MECHANIC
18,828 POSTS

Need to have codes read from computer that will give clue as to what is happening. Can you do that and post will advise.

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Tuesday, May 19th, 2009 AT 10:00 AM

UPENZI

MEMBER
1 POST

I had this EXACT same problem with my 94 Q45. I took it to a mechanic who replaced the MAF Sensor and the problem has been gone ever sense. You can get one online for about $100. Or you can have a mechanic order it since they get a discount and it'll cost about $70.

I got mine done for free since the dealer I got my car from had a 30 day warranty.

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Sunday, August 16th, 2009 AT 12:10 PM