Lets talk tests

sweet88gt said:
Silicone Boost Vacuum Hose



I see people using this back in the day. Anyone use this ?



Since my local parts store has crap for selection and they collapse under vac.
Click to expand...
I just buy the OEM ones when they split. Shouldn't be too many that are split or rotted. I think I had to replace 3 total vacuum lines on these 3.4 liters.

Lots of folks buy silicone vacuum lines.



Sent from my SM-J337V using Tapatalk
 
brillo_76 said:
I just buy the OEM ones when they split. Shouldn't be too many that are split or rotted. I think I had to replace 3 total vacuum lines on these 3.4 liters.

Lots of folks buy silicone vacuum lines.



Sent from my SM-J337V using Tapatalk
Click to expand...

From the dealer or aftermarket ?
Its the size and quality I can't find here.
I might check Napa
 
sweet88gt said:
So I let this thing sit and walked away from it to clear my mind.

Test drive again and now no misfire codes in the 30 min ride with about 10 miles of driving. Start and stop let it sit in parking lot and such.

So no misfire codes
Just the P0171
I haven't done anything to try to fix. My guess now is a vacuum leak since I have had the intake off a few times.
I have cleaned MAF so Im hoping that is good.

Ran well with no stall. Check engine light only came on right before I shut the engine off when I got home.
Click to expand...

I have heard you can try and search for a vacuum leak spraying a flammable aerosol around all the hoses while the car is running. I used starter fluid and sprayed into the airbox as a positive control and barely noticed a difference, so I am not sure if its the best test.

You can also try a smoke machine, but I don't think a small leak would cause you so many issues.
 
Gull81 said:
I have heard you can try and search for a vacuum leak spraying a flammable aerosol around all the hoses while the car is running. I used starter fluid and sprayed into the airbox as a positive control and barely noticed a difference, so I am not sure if its the best test.



You can also try a smoke machine, but I don't think a small leak would cause you so many issues.
Click to expand...
That works best on major leaks on an intake. The flammable spray fluid test. A vaccuum hose leak can be difficult to find at times. As sometimes the components fail and will create the leak as well. This one of the reasons why Toyota moved to more electric sensors as time when on to get away from vaccum issues.

Sent from my SM-J337V using Tapatalk
 
UPDATE:

So after a bunch of craziness in 2 different threads. A bunch of tests. A slew of parts.
I noticed a low output of the alternator. I went to the junkyard and pulled a unit. Replaced my reman and it looks like that has been my issue.

50 miles in 2 days. Long idle times. Stop and go. Just got back in which I purposely waited for typical Florida monsoon to run the headlights-a/c-radio and run it through its paces. NO CODES

Before it wouldn't idle sometimes for 5 mins in the driveway.
 
I will update this thread again if anything changes.

I always hated when I search a topic and no known fix ever happened.

So far so good.
 
You must log in or register to reply here.

Members online

Total: 343 (members: 2, guests: 341)

Forum statistics

Threads
278,307
Messages
3,554,054
Members
248,016
Latest member
Advally Service

Share this page

Trending content

Back
Top