Avis au spécialiste, appel à l'aide - JeepForum.com
 
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post #1 of 8 Old 07-23-2021, 07:52 AM Thread Starter
JPRD34
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Avis au spécialiste, appel à l'aide

Bonjour à tous,
j'ai besoin d'aide et je pense que je suis au bon forum et qu'il y a des spécialistes passionnés de Jeep Grand Cherokee.
Le mien est un Orvis 5.2l de 1995. Je suis Français et ce modèle n’existe pas chez nous. Modèle réservé au nord des États-Unis et Canada.
J'ai fait le "check control" et il est sorti 12, 22 et 55. Donc le seul vraiment intéressant est le 22. Voltage trop faible ou trop fort du capteur de température de liquide de refroidissement. Quand, je test avec voltmètre j'ai 0.04V. Je devrais avoir environ 5V. J'ai testé la continuité des fils en partant du PCM jusque le connecteur de la sonde et c ok.
La sonde/capteur de température de liquide de refroidissement est neuve.
Le PCM est d'occasion acheté dans un magasin aux États-Unis, normalement il est ok.
Mon MAP est neuf. le TPS est neuf.
Je ne comprend pas pourquoi je n'est pas le bon voltage au ECT ?
Pensez-vous qu'il y a autre chose qui fait que je n'ai pas le voltage ou est-ce que c'est mon PCM qui a un problème ?
Mon moteur ne démarre pas et j'avoue que je commence à sécher. Je ne sais plus quoi faire.
Si quelqu'un aurait une idée ? Ce serait cool. Merci d'avance.

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post #2 of 8 Old 07-23-2021, 08:43 AM
V8GCZJ
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We speak ENGLISH here!
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post #3 of 8 Old 07-23-2021, 09:19 AM
Fourtrail
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Originally Posted by V8GCZJ View Post
We speak ENGLISH here!

Here, now maybe you can help with the question.



Quote:
Originally Posted by JPRD34 View Post
Hello everyone, i need help and i think i am at the right forum and there are some passionate jeep grand cherokee specialists out there. Mine is a 1995 Orvis 5.2l. I am French and this model does not exist with us. Model reserved for northern United States and Canada. I did the "check control" and it came out 12, 22 and 55. So the only really interesting one is 22. Too low or too high voltage from the coolant temperature sensor. When, I test with voltmeter I have 0.04V. I should have around 5V. I tested the continuity of the wires from the PCM to the probe connector and c ok. The coolant temperature sensor / sensor is new. The PCM is used store bought in the USA, normally it is ok. My MAP is new. the TPS is new. I do not understand why I am not the correct voltage at the ECT? Do you think there is something else that is causing me to not have the voltage or is it my PCM that is having a problem? My engine does not start and I admit that I am starting to dry out. I do not know what to do. If anyone has an idea? That would be cool. Thanks in advance.

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #4 of 8 Old 07-24-2021, 08:18 AM
V8GCZJ
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22 is the only one you need to worry about. You have a 95 so it has two(2) temp sensors one for the gauge and the other for the pcm. Witch one did you replace? Temp sensor is the ground circuit, Depending on what resistance the sensor has either more or less continuity(to ground) that's how the pcm/gauge work.
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post #5 of 8 Old 07-26-2021, 10:14 AM Thread Starter
JPRD34
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Merci. C'est bon pour moi. Mais mon anglais n'est pas bon. Au revoir.
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post #6 of 8 Old 07-26-2021, 11:29 AM
Fourtrail
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Originally Posted by JPRD34 View Post
Merci. C'est bon pour moi. Mais mon anglais n'est pas bon. Au revoir.


Thank you. It's good for me. But my English is not good. Bye.

You can type up your post and use Google Translate for those of us across the ocean.



Vous pouvez taper votre message et utiliser Google Translate pour ceux d'entre nous de l'autre côté de l'océan.



https://translate.google.com/?hl=en&tab=TT

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #7 of 8 Old 07-26-2021, 11:30 AM
Fourtrail
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Quote:
Originally Posted by V8GCZJ View Post
22 is the only one you need to worry about. You have a 95 so it has two(2) temp sensors one for the gauge and the other for the pcm. Witch one did you replace? Temp sensor is the ground circuit, Depending on what resistance the sensor has either more or less continuity(to ground) that's how the pcm/gauge work.

Translated


Quote:
Originally Posted by V8GCZJ View Post
22 est le seul dont vous devez vous soucier. Vous avez un 95 donc il a deux (2) capteurs de température un pour la jauge et l'autre pour le PCM. Sorcière une as-tu remplacé ? Le capteur de température est le circuit de terre. Selon la résistance du capteur, plus ou moins de continuité (à la terre), c'est ainsi que fonctionne le pcm/jauge.

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #8 of 8 Old 07-26-2021, 12:54 PM Thread Starter
JPRD34
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Cool merci.
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