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BADASS of New England
An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Engine problem 5l TBI Sat Feb 18, 2012 9:38 am
I have some problem. The Engine rpm waves and in the end the engine dies. It happens most times when it is warm. Here you play some movies and hear it yourself. Any ideas what may be the cause?
Guest Guest
Subject: Re: Engine problem 5l TBI Sat Feb 18, 2012 10:49 am
Sound like either a fueling issue, or your intake manifold gasket is leaking. I would pull some plugs after it dies, and check to see if there is any moisture on them. I would also check your oil condition, and pull the distributer cap, and look for any funny burn patterns or worn terminals. Try replacing the fuel filter. A clogged filter can work fine during initial startup, but as the car starts to warm, any free flow in the filter gets quickly clogged, once it sits not running for awhile, the particles fall back down allowing fuel flow again.
So I would start by checking the fuel filter, and the intake manifold gasket, look for a vacuum leak? Check the EGR if so equipped
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Sat Feb 18, 2012 10:52 am
Appreciated. I will check all the things you mentioned.
95brmw
Posts : 1434 Join date : 2009-11-10 Age : 39 Location : Connecticut
Subject: Re: Engine problem 5l TBI Sat Feb 18, 2012 11:42 am
Also pull the air cleaner box off and see what the spray pattern looks like. Should be a nice cone from both injectors.
sdstick
Posts : 4292 Join date : 2009-03-20 Location : Revere, MA
Subject: Re: Engine problem 5l TBI Sat Feb 18, 2012 12:43 pm
We've learned to ask the question..... Have you done anything to the motor lately? Or did this just start out of the blue?
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Sun Feb 19, 2012 4:12 am
Out of the blue
nttyfufu
Posts : 122 Join date : 2012-02-19 Age : 43 Location : Wilmington, Ma
Subject: Re: Engine problem 5l TBI Wed Feb 22, 2012 4:36 pm
Just a guess but check out the idle speed control or Throttle position sensor going bad and seacrhing for signal?
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Thu Feb 23, 2012 2:05 pm
Problem solved - loose timing chain.
nttyfufu
Posts : 122 Join date : 2012-02-19 Age : 43 Location : Wilmington, Ma
Subject: Re: Engine problem 5l TBI Thu Feb 23, 2012 2:27 pm
Ya That will do it. Glad you figured it out.
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Thu Feb 23, 2012 2:34 pm
nttyfufu wrote:
Ya That will do it. Glad you figured it out.
It's not the end of repairs, the car still drives sluggish, it doesn't accelerate like healthy TBI. I'm waiting for timing chain shipping (about 12 days) and than we will try to figure out why he is so slow.
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Thu Mar 01, 2012 3:12 pm
The engine is Goodwrench crate engine 350 not the stock 305. Computer is from 305 - this may be the problem!
nttyfufu
Posts : 122 Join date : 2012-02-19 Age : 43 Location : Wilmington, Ma
Subject: Re: Engine problem 5l TBI Thu Mar 01, 2012 4:18 pm
I would think if it's just a stock low end goodwrench replacement engine that the 305 comp. would be fine. Not ideal but fine. I have no direct expiriance with this situation but that's what i've heard.
Guest Guest
Subject: Re: Engine problem 5l TBI Thu Mar 01, 2012 4:25 pm
MarcinV8 wrote:
The engine is Goodwrench crate engine 350 not the stock 305. Computer is from 305 - this may be the problem!
Sounds like you have an issue with the ecm. You need a custom chip made for your car.
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Thu Mar 01, 2012 4:46 pm
IMPALADAKID wrote:
MarcinV8 wrote:
The engine is Goodwrench crate engine 350 not the stock 305. Computer is from 305 - this may be the problem!
Sounds like you have an issue with the ecm. You need a custom chip made for your car.
My friend started to work on custom software for the computer.
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Tue Nov 13, 2012 10:44 am
Repaired!! Old engine is just scrap now, everything inside was broken... now my SW has 5.0 TBI with 54 000 miles on it. Runs great
sdstick
Posts : 4292 Join date : 2009-03-20 Location : Revere, MA
Subject: Re: Engine problem 5l TBI Tue Nov 13, 2012 11:29 am
Glad your problems are solved
Testament to the small block.... Runs even with:
MarcinV8 wrote:
............ everything inside was broken...
.. ..
MarcinV8
Posts : 23 Join date : 2011-11-22 Age : 39 Location : Poland
Subject: Re: Engine problem 5l TBI Tue Nov 13, 2012 11:32 am
sdstick wrote:
Glad your problems are solved
Testament to the small block.... Runs even with:
MarcinV8 wrote:
............ everything inside was broken...
.. ..
True, it worked but after the engine was open the cost of repairing it was higher than buying new engine.