2005 Nissan Sunny Engine Problem

SAADU10

MEMBER
2005 NISSAN SUNNY
1.8L
2WD
AUTOMATIC
10 MILES

Dear Sir,

Good Day!

Recently my car failed during vehicle inspection by authority due to white smoke from engine. When I went to local mechanic, he advised to change the engine with used one since repair cost is quite high than changing the whole engine. Accordingly I agreed and give the vehicle for repair. Unluckily, he has changed the engine with 1.5 L (my previous engine was QG18, Now it is QG15). The vehicle is working normally except some missing during turning or idling (The mechanic advised to change the spark plug as exising one could be very old).

Please advise if any other issue can occur in future due to to change in engine size.

Thank you in advance.
Sa adu M

2 Replies

HMAC300

MECHANIC
48,601 POSTS

Check for a vacuum leak like a hose off/broken etc. Then check fuel pressure and clean throttle plate on both sides and iac hol e with choke cleaner.

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Thursday, July 9th, 2015 AT 6:50 AM

SAADU10

MEMBER
2 POSTS

Hi, Thank you for the response. I have replaced all spark plug and its seems clear now.

Kindly advise any other issue can occur in future due to change in engine size from 1.8L to 1.5L.

Regards,
Sa adu M