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Location of coolant temperature sensor for 1998 chevy lumina

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On the 4 cylinder it's the bottem one on the thermostat housing
On the 6 cylinder it's adjacent to the egr pipe.

Posted on Sep 07, 2011

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I need the easiest possible directions to replace the coolant temperature sensor in my 1999 Chevy Lumina ltz 3.8 v6 car please.


The coolant sensor temperature is usually found just beneath the cylinder head, on the engine block.

You just disconnect the 1-2 wires and then undo it with a wrench.
The sensor will look like one of these:
1999 Chevy Lumina ltz 3 8 v6 coolant temperature sensor Google Search

Just be aware .. you may have TWO such sensors on your vehicle.

One sensor (usually with 3-4 electrical pins) is near the thermostat and works in conjunction with other sensors to regulate fuel/air according to engine temperature.

The other type of sensor is in the block near the cylinder head. It sends a signal to the temperature gauge on your dashboard ONLY. If your temp gauge constantly reads too hot or too cold .. this one is the culprit.25939754-r0ibht2u2t2rhetbyfvb2pry-5-0.jpg
If it's a running fault .. speed .. rough running .. fuel. It may look like this:
25939754-r0ibht2u2t2rhetbyfvb2pry-5-1.jpg

Nov 03, 2015 | Cars & Trucks

1 Answer

Coolant temp sensor location on 1998 Isuzu Amigo 2.2L 4X4.


Go in on utube and ask the question Where is the 1998 Isuzu amigo coolant temp sensor located good luck

Oct 22, 2014 | 1998 Isuzu Amigo

2 Answers

Honda Crv 1998 coolant temp sensor location


Open up your car manual and turn to the page where there is an illustration of the engine. There you will find the location of the temperature sensor marked in the illustration

Jul 10, 2014 | 1998 Honda CR-V

1 Answer

97 chevy lumina are there coolant fan sensors


This year doen't use a separate sensor for the cooling fans, it uses the ECT (engine coolant temp sensor) sensor that monitors engine temperature for the fuel control system, the computer turns the fans (via a relay) on when the engine reaches about 225-230 Degrees F

Oct 11, 2011 | 1997 Chevrolet Lumina

1 Answer

I need to find where the coolant temperature sensor is located on my 1998 Chevy Astro van?


coolant temperature sensor is located next to thermostat housing at front of engine in intake manifold you will see it right next to top radiator hose but this one reports to pcm the one for the gauge in dash or light is on the drivers side cylinder head you will see one little wire going to a sensor screwed in head near second plug back on drivers side

Jun 19, 2010 | 1998 Chevrolet Astro

1 Answer

Where is the ECM located on a 1998 Chevy Lumina


PCM UNDER THE COOLANT RESERVOIR JUG IN A HOUSING COVER.HATE TO TELL YOU THAT YOU CANT REPLACE THE PCM AT HOME ITS HAS TO BE REPROGRAMMED.

Jun 26, 2010 | 1998 Chevrolet Lumina

1 Answer

Where is the camshaft located at on a 1998 Chevy Lumina


Its just above the crankshaft in the center of engine just below the lifters. See a GM dealer parts dept. for pictures af cams and cam sensors. They might fax you a picture.

Apr 15, 2009 | 1998 Chevrolet Lumina

1 Answer

Coolant temperature relay switch


Most vehicles use a coolant temperature sensor which is located near the thermostat directly connected into the coolant line, or near the thermostat housing, there are relays for the cooling fan which is usually located in the power distribution box under the hood.

Mar 16, 2009 | 1998 Chevrolet Cavalier

1 Answer

Ac on max fan switch on high and neither coolant fans come on


Check relays (usually un.derhood) first See owner manual for location. Then check engine coolant temperature sensor. If it's not providing high temp signal, the fans won't come on. However, the fan usually comes on when a/c is engaged. Leaing towards relays

Mar 01, 2009 | 1998 Chevrolet Lumina

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