Question about 1994 Geo Tracker
Most valve covers screws are loose.
they use very low torque.
and as the gasket ages, (gee the tbelt service changes it at 60,000 miles every time) but the old gaskets do shrink and must be replace way before they harden and shrink.
there are 2 engines, one is 16v alum. cover. and 8v steel cover.
so cant help much lacking that fact.
the 8v has as little as 33 INCH lbs force, 2.7 foot lbs.
as you can see that is TINY, can can be construed as loose and is for SURE not.
that is because the steel cover will DEFORM too tight and actually leak like that.
here are both settings for both engines.
all old kick enignes leak oil
at the VC (valve cover)
and the Distributor 2 o-rings
and both are lack of proper service.
here is the page.
see #2 and #3 here.
id bet it was NEVER DONE.
off tune up page.
Posted on Apr 29, 2014
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Posted on Jan 02, 2017
SOURCE: egr valve location
The EGR Valve Location is typically housed on the intake manifold this schematic may help you
Posted on Mar 07, 2009
this may help
EGR Theory. EGR serves one purpose and one purpose only. That purpose is to reduce Oxides of Nitrogen (NOx). Undernormal combustion, Nitrogen(N2)Oxygen (O2) in the air and Hydrocarbons (HC) in the fuel combind into water(H2O) Carbon dioxide (CO2) and the Nitrogen remains unchanged. Under very hot combustion temperatures, the Nitrogen reacts with the other two byproducts and forms Nitrogen oxide (NO). After being released into the atmosphere, it picks up another Oxygen and becomes Nitrogen dioxide (NO2). In the presence of sunlight,
it combines with other compounds like Hydrocarbons and forms Smog. Since exhaust gas is inert (very stable) it doesn’t burn again. So by being introduced into
the combustion chamber, it will lower combustion chamber temps enough so that
the Nitrogen doesn’t react with the other compounds and is passed unchanged out
the tailpipe thus not contributing to smog. Now, since exhaust gas doesn’t burn, it
doesn’t exactly help with combustion. At higher RPM’s, this really isn’t noticable,
but at idle, the reintroduction of exhaust gas will cause a very rough idle and can
cause stalling if to much is introduced into the combustion chamber
Posted on Mar 07, 2009
You need to take the cover off your hub and clean and grease the lock ring. It is attached to the spring. It sounds as though your hub is rusted open.
Posted on Mar 09, 2009
The fuel pump relays are mounted on an "L" bracket underneath the ECM. Both have something to do with the Fuel pump. Be careful not to get it confused with the horn relay it is in the same vicinity (under the dash on the drivers side).
Posted on Mar 14, 2009
i1m sorry to say that wheel bearings are not set to a torque specification, when you have repacked the bearings [ inner and outer ] ,reassembled it ,take the nut up until thewheel starts to drag and not turn very far when you try to spin it spin it backward and forward several times,grab the top of the wheel and try to push it in and out,if you getany movement at all tighten the nut a couple of castilations. do it all over again, spinthe wheel a few times and then try for the crossways movement again, if there is no movement ,you are very close to being right....................now comes the experience bit , iwould take it one more castilation of the nut because i know the feel that is need ed,,without that i suggest you put the pin in where you ereput the cap on and go for a 5 minute drive . whenyou get back ,jack it up and thespinning of the wheel again and try for the top crossways movement ,if there is any tighten thenut 2 castilations, and provided that when you try to spin the wheel by hand with a reasonably strong push the wheel should trael about 6 inches at least after your hand leaves it ,it is now a close as you are going to get itput it all to gether and for the next day or so put yor hand on the grease cap after you have driven anydistance, and you will feel it is warm but you should be able tohold your hand on the grease cap. there you have it ,any questions come back."youdoit"
Posted on Nov 06, 2009
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