Tech, Repairs, Upgrades > Capri XR-2 89-94

Engine Coolant Temperature Sensor

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CapriManxr2:
How do I go about replacing the engine coolant temperature sensor? Is it easier to go from the top and take off the fuel rail and intake manifold or firm the bottom and unbolt the starter and other things in the way? My initial problem is that the car is running like crap and I've tried throwing parts at it like new coil pack, MAF, distributor cap, I hunted down all vacuum and boost leaks and the weirdest thing is I bought a new fuel filter for it but it won't start with it. It is pretty much undrivable, all the shops near me aren't taking new customers at the moment so I'm trying to hunt this problem down. What I've got so far is that the engine is running rich, this is because it won't start with a new fuel filter and it pops and bangs like CRAZY. The car feels REALLY slow until you hit boost or you go over ~3,000rpm. I checked MAF and TPS readings and they're all fine, I was going to try the engine coolant temp sensor before sending it in to the shop, I have found it but am not sure how to replace it. Any help is appreciated, thanks!

EShepherd:

--- Quote from: CapriManxr2 on April 23, 2023, 11:55:51 PM ---How do I go about replacing the engine coolant temperature sensor? Is it easier to go from the top and take off the fuel rail and intake manifold or firm the bottom and unbolt the starter and other things in the way? My initial problem is that the car is running like crap and I've tried throwing parts at it like new coil pack, MAF, distributor cap, I hunted down all vacuum and boost leaks and the weirdest thing is I bought a new fuel filter for it but it won't start with it. It is pretty much undrivable, all the shops near me aren't taking new customers at the moment so I'm trying to hunt this problem down. What I've got so far is that the engine is running rich, this is because it won't start with a new fuel filter and it pops and bangs like CRAZY. The car feels REALLY slow until you hit boost or you go over ~3,000rpm. I checked MAF and TPS readings and they're all fine, I was going to try the engine coolant temp sensor before sending it in to the shop, I have found it but am not sure how to replace it. Any help is appreciated, thanks!

--- End quote ---

The easiest way to get to the ECT sensor depends on if you have a lift/a good jack and two jack stands. If you do, I find it much easier to get to it from underneath the car. Don't even need to pull the whole intake manifold off. What I did was picked it up, removed the catalytic converter, removed the throttle body bracket, and removed the starter motor. That'll give you juuuuust enough room to get to the sensor, but you'll likely take a bit of a coolant shower doing it from below.

If you don't wanna climb under the car, it is possible from up top, just much more of a pain. I forget what all I had to remove, but I want to say it's the battery, battery tray, alternator, and intake manifold.

CapriManxr2:
Alright, I think I'll go from the bottom. I have some stands and a jack with a set of tools to get it done. I'll let you guys know how it goes and take pics along the way to document so others know what to do.

JJ:
[quote author=EShepherd

The easiest way to get to the ECT sensor depends on if you have a lift/a good jack and two jack stands. If you do, I find it much easier to get to it from underneath the car. Don't even need to pull the whole intake manifold off. What I did was picked it up, removed the catalytic converter, removed the throttle body bracket, and removed the starter motor. That'll give you juuuuust enough room to get to the sensor, but you'll likely take a bit of a coolant shower doing it from below.

If you don't wanna climb under the car, it is possible from up top, just much more of a pain. I forget what all I had to remove, but I want to say it's the battery, battery tray, alternator, and intake manifold.
[/quote]

I thought I replaced this but I definitely didn't do any of that.... hmmm

EShepherd:

--- Quote from: JJ on April 30, 2023, 11:12:35 AM ---[quote author=EShepherd

The easiest way to get to the ECT sensor depends on if you have a lift/a good jack and two jack stands. If you do, I find it much easier to get to it from underneath the car. Don't even need to pull the whole intake manifold off. What I did was picked it up, removed the catalytic converter, removed the throttle body bracket, and removed the starter motor. That'll give you juuuuust enough room to get to the sensor, but you'll likely take a bit of a coolant shower doing it from below.

If you don't wanna climb under the car, it is possible from up top, just much more of a pain. I forget what all I had to remove, but I want to say it's the battery, battery tray, alternator, and intake manifold.

--- End quote ---

I thought I replaced this but I definitely didn't do any of that.... hmmm
[/quote]

There are 3 temp sensors on these cars. One is a switch for the fan, one is a sender for the gauge, and one is an input for the ECM. I'm like 99% sure the ECM one is the one that's a pain in the butt to get to because Ford decided it needed to go below the intake manifold.

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