okay....here is my great mystery of the day.
90 GMC S15, all sensors and throttle body, egr, tps, injectors, fuel
pump and filter all relativly new and in good working order but due to
high km's and loud knocking it was time to replace the engine.
ordered a rebuilt engine, transferred over all parts, everything went
well and it was installed.
started right up and ran with no problems and idled smooth.
Then....went for a drive, and as soon as things warmed up and hot
normally hot I noticed I didn'd have much power, I could barely get
the truck up to 100km/hr without having to floor it....which was odd.
Then....I came to a stop and it was idling rough...bad miss it sounded
checked all the usual suspects from plugs to wires etc, timing.
I notice that when it is cold it runs fine....can smoke the tires if I
want going out of my driveway but as soon as I warms up it is hardly
driveable and rough to almost the point of stalling.
Mechanic after charging me $3000 cdn for the rebuilt and install now
says it might be a small leak on the intake manifold/gasket.
I am not convinced but have run out of ideas. We are currently
installing a used intake from a scrapyard just in case but I am not
sure this will solve the problem.
I am watching and making sure the use a torque wrench and follow the
bolt tightening sequence.
if anyone has any ideas please email me or post, I am able to recieve
and reply to email on a RIM/mobile device.
and if anyone can recommend a better shop than the one I am at please
do....I think honestly I have more experience that the oil and lube
techs that pass themselves off as mechanics here.
thanks in advance
Toronto Ontario Canada