SPONSORED LINKS

Will not start unless I hold the gas pedal all the way down

Tiny
JACOBDGC
  • MEMBER
  • 1986 CHEVROLET MONTE CARLO
  • 200,000 MILES
I think the problem may be that I have water in the engine, but I drive this a lot and I dont see why the problems would start happening so quickly instead of slowly getting worse over time. If I am correct then please let me know.

Thank You
SPONSORED LINKS
Tuesday, March 13th, 2012 AT 1:31 AM

17 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Sounds more like the engine is flooding with fuel rather your water idea. Is the engine have a carb or is it fuel injected?
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 1:39 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
Sorry this is my first time using this website this is more info for you. And it has a carb.
I have a 1986 Monte Carlo. It will not start unless I hold the gas pedal all the way down. When it does start I have to continually hold the gas pedal down or it will die. Even when holding the gas all the way down the rpms will not go over 2000. After it does die white smoke shoots out of the carburetor and it back fires. I dont know why. Some information that may or may not help is that it is the 305 H.O L69 engine with a 4bbl carb.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 1:42 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So does it warm up and run good?
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 1:47 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
Nope it will not idle at all. As soon as I let off the gas it dies the backfires with white smoke shooting out of carb.
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 1:48 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Try unbolting the cat and see if it runs any better?Also did this just start suddenly or did it slowly start getting worse?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 1:53 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
A few days ago it died at a stop light and I fired it back up and it got me home. Woke up the next day and have been having these problems since. I have not driven it any where since it died at stop light.
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 1:57 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
It could have jumped cam timing also not going over 2,000 rpms something happened unbolt the cat and lets see how it runs. We have to start ruling things out.
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:02 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
And what is the cat? It it the catalytic converter?
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:03 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Just to add to saturn tech, I had many of these and re built many of these carbs for this exact issue. The plugs in the bottom of the carb center body leak and make it real hard to re start when hot.
You need an old timer in the business that can verify this and rebuild the carb for you.
The converter may be damaged from this and I would still pursue this as well.

Roy
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:08 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
Would it be better if I just bought a new carburetor?
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:11 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Hard to find a Q jet today for under 1000. I rebuilt them for 400 with all the parts and labor.
It is up to you but I am from the old days and rebuilt them.

Roy
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:17 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
Because of the leak is my engine probably flooded with fuel?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:20 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
That car has a 4ME carb with computer controled metering rods real fun to rebuild.I have rebuilt the older ones but the ME carbs are more challenging. Before under taking the carb lets rule other things out. The cat is the catalitic convertor yes.
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:26 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
Ok what else do you think it could be?
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:32 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I agree with saturn tech. Rule out the other stuff.

Ropy
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:38 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
While you got it running when it wont run over 2,000 rpms holding the throttle wide open while its running carefully mist some carb spray over the carb opening. See if the engine picks up rpms from the carb spray. That will tell you if its starving for fuel. Before doing that make sure the choke isnt sticking?
Was this
answer
helpful?
Yes
No
Tuesday, March 13th, 2012 AT 2:48 AM
Tiny
JACOBDGC
  • MEMBER
  • 9 POSTS
Today after I sprayed some carb spray their was no change. Later on I tried starting it again and the carb caught fire but luckly immediatly died down. Any ideas?
Was this
answer
helpful?
Yes
No
Wednesday, March 14th, 2012 AT 7:12 AM

Please login or register to post a reply.

Related Engine Not Running Content

How to fix an engine that wont start
VIDEO
How to fix an engine that wont start
Instructional repair video
Engine Not Starting
GUIDE
Engine Not Starting
Over the past 20 years at 2CarPros we have identified the top problems that are easily fixed. This guide can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE

Sponsored links