Trying to install new injectors

KEITH PHELPS

MEMBER
2001 PONTIAC GRAND AM
3.4L
V6
FWD
AUTOMATIC
178,785 MILES

Trying to install new injectors delphi style injectors got then inserted in fuel rail no problem. My problem is cannot get them to insert and seat into intake manifold seat I have cleaned seat out with drill brush. I have greased injector seats and bottom of injectors pushed extremely hard on them with them in fuel rail and individuals cannot get them to start into seat on intake. Can you help or no a trick? Thanks

3 Replies

HMAC300

MECHANIC
48,601 POSTS

First check to see If they are the correct ones and not upside down. Then check all injector holes for o-rings that did not come out or double o-rings on the injectors, then lube the o-rings on injectors and they should go in.

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Sunday, April 9th, 2017 AT 3:51 PM

KEITH PHELPS

MEMBER
2 POSTS

Checked them they the same when I pried the old ones out they was tight getting out even old ones will not go back in?

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Sunday, April 9th, 2017 AT 4:12 PM

HMAC300

MECHANIC
48,601 POSTS

Was it hot when you tore it apart? If so the holes expanded if it was aluminum maybe shrank from plastic. Try it when the engine is cold like a room temperature if the old ones came out the new ones should go in.

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Sunday, April 9th, 2017 AT 4:39 PM