Question about 1989 Chevrolet S-10 Blazer
Sounds like air fuel mixture so a new air filter and fuel filter change cant hurt. Change out wirers I would if it were mine.
Posted on Oct 14, 2013
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Posted on Jan 02, 2017
SOURCE: 89-98 chevy blazer
It's not worth doing all that conversion, buy the time you spend the time and money to convert the 89 4.3 to work on the 98 blazer, it would be cheaper to install a 98 vortec rebuild. The 89 4.3 have a TBI fuel injection system and the ecm on the 98 will not work and the bad news is that the ecm on the 98 also controls the transmission shift points and the 89 will not, so even if you swap the ecm to have the 89 4.3 engine work. the transmission will not shift. Sorry for the bad news but it would be cheaper to replace the 98 engine with the years of 1996 to 2001. Good luck and hope this helps.
Posted on Jul 21, 2009
It sounds like the engine is starving for gas however it could be a tork converter lock system malfunctioning, first check the transmission fluid is it brownish in color and smells like onions? if yes it needs to have the fluid changed and the filter replaced. Is it low? any amount of low fluid in the transmission it will act differently. Next if the transmission fluid is good, then you need to do a test of the fuel pressure by renting a pressure regulator and testing fuel rail pressure, this is easy to do and can save you some cash. Hook the gage to the schrader valve on the fuel rail, looks like a bicycle tire or car tire plug, hook the gage up turn the key to the run position do not start read the fuel pressure does it go to 40 PSI? yes? then turn key off and watch the needle on the gage does it go below 30 PSI in 60 seconds? If no then turn the key off remove the fuel regulator hose and start the truck does the fuel pressure go to 60 psi? if yes shut off engine watch the gage if it loses pressure after 60 seconds then you have a bad fuel pump check valve so you would have to remove the fuel pump.
One other thing how is your oil pressure? is it running high? Thanks for using fix-ya if you need more help let us know.
Posted on Dec 28, 2009
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