2.3 too cold
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Freshman User
Joined: Aug 2005
Posts: 28
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From: san jose, Ca
2.3 too cold
86' base ranger 2.3EFI 5spd. Put in new radiator now engine runs too cold! Temp. at stat housing only gets up to 170 degrees, needle on guage stays right at the bottom mark on the normal range. changed stat. no difference. could my fan clutch be doing this. how do I check fan clutch operation?
Fleet Mechanic
Joined: Oct 2004
Posts: 1,720
Likes: 507
From: clinton,tn
my 86 has the 2.3 efi also , but with a auto. trans. i just put a recon head,new water pump all belts and new 195 stat. it alway's run's cool even in summer. take's time to get the heat going . been that way since new. heat work's good when hot but engine temp stay's cool and gauge go's up to about 1/3 way up.off cool.worked well for 375,000 mile's and hopeing for another 375,000
Senior User
Joined: Apr 2005
Posts: 310
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Originally Posted by RangerPilot
2.3Ls run cold anyways. You know your temp gauge isn't really right? Mine sits between the C and NORMAL when it's at it's normal 200* or so operating temp.
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Freshman User
Joined: Aug 2005
Posts: 28
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From: san jose, Ca
2.3 too cold
I checked temp. at stat. housing with engine running and after a long drive and with an infrared temp gun, temp. never gets over 170. also noticed my gas mileage dropped about 4-5 mpg so the computer sees it too if it's trying to raise eng temp. by increasing fuel mixture.
Elder User
Joined: Oct 2005
Posts: 623
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From: Blytheville, AR
Strange, I'm finally getting my normal 23mpg intown again when the temp has dropped. At the beginning of the cold season I was sitting at 18-19mpg. (2.5L L4) Now I'm back up to 23mpg and I'm a very happy camper again.
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Post Fiend
Joined: Jul 2005
Posts: 8,462
Likes: 4
From: Durant, OK (SOSU)
23mpg very nice, not a leadfoot are ya? dag I'm not sure on the temp sender location, I have a 4.0L and mine's under the throttle body. I do believe your gauge sender is near the firewall and a royale pain to get to.
I'm thinking I'll have to get a new sender now. Sitting at Jack In The Box about an hour ago I look down and my gauge is almost halfway up, I figure oh no, it's gonna cook and flip my console open and turn the gauges on, and it's sitting right at 205* or so. Dang thing lol, scared me there for a second. With the fluctuations I think I'll just replace it anyways, fun little project and an excuse to pull and clean the throttle body.
[/end pointless rant]
I'm thinking I'll have to get a new sender now. Sitting at Jack In The Box about an hour ago I look down and my gauge is almost halfway up, I figure oh no, it's gonna cook and flip my console open and turn the gauges on, and it's sitting right at 205* or so. Dang thing lol, scared me there for a second. With the fluctuations I think I'll just replace it anyways, fun little project and an excuse to pull and clean the throttle body.
[/end pointless rant]
Last edited by Ken00; Dec 21, 2005 at 09:00 PM.
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Elder User
Joined: Oct 2005
Posts: 623
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From: Blytheville, AR
Not anymore. 
I've forsaken my old driving habits for more economical ones. I rarely get over 60mph anymore. *sigh* Even on a 70mph interstate I grandpa it at about 65-67. An extra few minutes on every trip for and extra 2-3mpg? Hands down, I will drive slow, lol.
I've forsaken my old driving habits for more economical ones. I rarely get over 60mph anymore. *sigh* Even on a 70mph interstate I grandpa it at about 65-67. An extra few minutes on every trip for and extra 2-3mpg? Hands down, I will drive slow, lol.
Senior User
Joined: Apr 2005
Posts: 310
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Originally Posted by natebaker
Not anymore. I've forsaken my old driving habits for more economical ones. I rarely get over 60mph anymore. *sigh* Even on a 70mph interstate I grandpa it at about 65-67. An extra few minutes on every trip for and extra 2-3mpg? Hands down, I will drive slow, lol.
I've forsaken my old driving habits for more economical ones. I rarely get over 60mph anymore. *sigh* Even on a 70mph interstate I grandpa it at about 65-67. An extra few minutes on every trip for and extra 2-3mpg? Hands down, I will drive slow, lol.
