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Questions tagged [vacuum-leak]

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2 answers
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I have a 1999 yamaha r1 and it bogs out really bad

So I've cleaned the carbs twice on this bike and its like it's not getting enough fuel because it will only run on starting fluid and I've cleaned the tank and got new hoses and still the same problem ...
Justin Millerrr's user avatar
1 vote
0 answers
87 views

Fuel tank pressure - leaking gases and gasoline

Hi! A pleasure coming to this site, hope I knew about it before! I own a VW Golf 4 R32 (euro), which from time to time, starts leaking gases and fuel from the fuel tank's cap. The amount of fuel ...
aran's user avatar
  • 111
1 vote
0 answers
4k views

What is a valid range for Intake Manifold Pressure while driving on +60mph?

So today I was monitoring my car data and logging everything, when I was driving on the highway going +60mph and on ~2500RPM, my intake manifold pressure read +10Psi. I read it's usually near 5Psi. On ...
Everyone's user avatar
  • 167
1 vote
0 answers
421 views

Could a vacuum leak cause a drop in manifold absolute pressure?

I've been doing some reading and speaking to a mechanic trying to diagnose a hesitation and rough idling issue. I think I've ruled out a vacuum leak by spraying flammable gas around the seals and not ...
Gus Hogg-Blake's user avatar
1 vote
0 answers
255 views

Car starts for 47 sec and then slowly stalls and dies every time

I own a Nissan 300zx Z31 1985, a car which has been having the same recurring problem almost a dozen times now. I am usually able to fix this issue, however the fix is never successful permanently. ...
Trash Incarnate's user avatar
0 votes
0 answers
298 views

Excessive leaking from injectors

I changed the timing chain and tensioner in a 1.6hdi diesel, so twin camshafts has a timing chain and tensioner connecting them. The chain didn't break rather it slipped 5 notches. The repair seemed ...
Andy S's user avatar
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263 views

Saab 9-5 (2006) engine lamp on - a loose hose found under the hood

When I start the engine of a Saab 9-5 (2006), the engine lamp is always on. I am not sure but I found two loose hoses. One of them I connected as shown in the image below. Could someone confirm that ...
Capo Mestre's user avatar
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85 views

02 Escape still sucking air after new upper and lower air intake gaskets

I can hear it. Plus acceleration is slow and the EGR keeps going off. I have replaced the EGR with a junkyard one and it didn't fix the problem so I want to fix the vacuum leak before I spend money on ...
user875234's user avatar