gas smell in vac line at FPR?

my2monkeys

NAXJA Member

Location

Mission Viejo, CA

• Jun 23, 2014

• #1

My 89 has a noticeable fuel smell at the regulator side of the vacuum line, but not really any fuel smell at the intake portion of the line.

Is it normal to smell gas or is my diaphram going out?

 

Talyn

NAXJA Forum User

Location

Radford, Communistwealth of Virginia

• Jun 23, 2014

• #2

Pressure check it. Some fuel might be normal as it ties into the intake manifold.

 

J

joejeep92

NAXJA Forum User

Location

Beloit, KS

• Jun 23, 2014

• #3

Any fuel in the vacuum line is a sign of a leaking diaphragm. Vacuum line should only serve to regulate pressure according to intake vacuum.

 

Talyn

NAXJA Forum User

Location

Radford, Communistwealth of Virginia

• Jun 23, 2014

• #4

What I should have said is that some fuel vapor/smell may be normal as it ties into the manifold.

 

Y

yossarian19

NAXJA Forum User

Location

Grass Valley, CA

• Jun 25, 2014

• #5

I'd replace the regulator based on fuel smell. Or if you want a comparison test - crack the throttle body and smell at that point in the manifold, then smell the FPR.
I've never noticed any gas smell in the manifold of a healthy engine, myself.