throttle body question

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elprimito

NAXJA Forum User

Location

edinburg texas

• Sep 1, 2005

• #1

No question is a stupid question, I think. Does a 1991 4.0 xj have a throttle body? My Haynes manual says that vehicles w/ inline 6 cyl. are equipped w/ a multi-point injestion system.
thanks

 

johnnyc

NAXJA Forum User

NAXJA Member

Location

La Habra, CA

• Sep 1, 2005

• #2

Yes, it has both...a throttle body and multi-port fuel injection (i.e. one fuel injector per cylinder). The throttle body is one component of the fuel injection system.

 

E

elprimito

NAXJA Forum User

Location

edinburg texas

• Sep 1, 2005

• #3

thanks xjohnnyc. I've read several posts about cleaning the tb w/ seafoam. I think for now i will simply pour a can into the gas tank.

 

B

bajacalal

NAXJA Forum User

Location

San Diego (North County), California

• Sep 1, 2005

• #4

Doesn't every gasoline engine have a throttle body or at least something that houses the throttle plate as means of regulating engine speed? The XJ would have a throttle body in the intake, but multi port injection at the intake manifold instead of throttle body injection.

 

C

carnuck

NAXJA Forum User

Location

seattle

• Sep 1, 2005

• #5

Throttle body injection means they use 1, or more injectors right at the throttle plate. Multiport injection measn the injectors are closer to the valves (generally spraying right on it) and there is 1 per cylinder.