Question about 1989 Chevrolet S-10 Blazer

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89 s10 runs hot at high speeds also when first started?

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Your radiator may be stopped up on the inside, just a thought

Posted on May 05, 2009

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Posted on Jan 02, 2017

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89 S10 runs really rich. Can smell it in the truck.Lots of carbon blows out when starting also idle is rough but runs great at a faster speed.


if carby , float level is incorrect , power valve is faulty, fuel pressure too high
if efi controlled run fault codes and look for problem heated oxygen sensor/s , MAF/VAF sensors

Aug 16, 2016 | Chevrolet S 10 Cars & Trucks

1 Answer

I have 89 Chevy s10 automatic 4x4 4.3Lt. Want to convert to manual trans I have a 97 s10 4x4 4.3Lt. Manual trans will it fit in my 89 s10 4x4


They will bolt up. You may want to get the wiring plugs off the 97 t case as they will be different from yours. Or use your old t case

May 24, 2015 | Chevrolet S 10 Cars & Trucks

2 Answers

Why does my 89 s10 4 cylinder run for a while then just die?


just guessing but could be bad gas (use gas line antifreeze, and add new gas) or it could be a coil breaking down once it gets hot. Check gas line filter and make sure gas is flowing freely.

Nov 19, 2014 | Chevrolet S 10 Cars & Trucks

2 Answers

1989 Bronco: 89 ford bronco i put a new starter new battery new...


Check the battery cables for corrosion near the battery terminal end. Sometimes it builds up under the rubber insulation. I would check the ground wire that runs from the battery to the engine block.

May 16, 2010 | 1989 Ford Bronco

2 Answers

89 s10 has a high idle


Adjust the idle though the throttle body at the top

Apr 16, 2010 | 1989 Chevrolet S-10 Blazer

1 Answer

1991 chevy S10 blazer fluctuating oil pressure


I assume from the year it has high mileage. With mileage comes wear in these engine's bearings allowing oil pressure to drop because of the excess clearance between cam and bearings, also the crank and bearings. When the engine is hot and idling the oil is thinner and goes by the bearings quicker. If you have good oil pressure while driving, I'd leave it alone, maybe use a thicker oil or some lucas additive. My 89 does the same thing sometimes in the summer, but don't remember it doing it this summer. I use Mobil-1 and an AC Delco filter.

Oct 17, 2009 | 1991 Chevrolet S-10 Blazer

1 Answer

'98 S10 4 cyl. 5 speed: Sudden high idle, now surges.


Go to your local shucks or auto zone and they can check any codes behind your check engine light and it's free. It sounds like one of two things a O2 sensor or your mass airflow sensor but they will tell you for sure

Oct 02, 2009 | 1998 Chevrolet S-10 Pickup

1 Answer

89 gmc can't start when hot


Check your engine codes for anything , you can get free info on the web or get a repair manual. it can be one or more problems until you narrow it down.

Apr 26, 2009 | 1989 GMC C1500

2 Answers

HIGH IDEL


sometimes the gasket under the trottle body goes bad. spray carb cleaner at the base of the trottle (not down into it) body while the engine is running. if the idle changes your on the right track. its an easy gasket to change.

Jan 08, 2009 | 1998 Chevrolet S-10 Pickup

2 Answers

89 s10 blazer help


have someone check the starter/solenoid

Jul 27, 2008 | 1989 Chevrolet S-10 Blazer

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