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Topic Review (Newest First)
01-04-2013 11:53 AM
coolin4u Not sure if they are still out there but someone can google and see but they used to make a dipstick that doubled as a heater,you simply placed it in place of the original and ran en extension cord o it like a diesal, it worked pretty well. Here is the link to one at Oreilly's.
KAT's by Five Star 15200 - Oil Dipstick Heater | O'Reilly Auto Parts
01-04-2013 10:27 AM
1990JEEPYJ Put it in the garage overnight and that helped a lot.
01-04-2013 10:26 AM
1990JEEPYJ
Quote:
Originally Posted by Shrimp View Post
Not to hijak here but i have a question about warming the jeep up vs not. So around here the lowest is gets on average in the winter is around the 20's with the rare drop to the teens ~15°. Now i like to warm up my jeep before i head out to work when i can for the obvious reasons of it will be warmer inside since i got a soft top and it warms the tranny enough to shift well. But somedays i just dont have time for a warm up and have to start and go. Now other than the noticable things like cold tranny is there anything harmful being done to the engine because of a cold start like that?

Btw OP i reaplaced my caps in the PCM and that helped with cold starts and i also before starting her up let it sit in the key position right before crank for a few secs to get.some juice flowwing through the PCM found it helps cold starts too.
I always do wait to start because I am used to driving a diesel.
01-04-2013 09:59 AM
Shrimp Not to hijak here but i have a question about warming the jeep up vs not. So around here the lowest is gets on average in the winter is around the 20's with the rare drop to the teens ~15°. Now i like to warm up my jeep before i head out to work when i can for the obvious reasons of it will be warmer inside since i got a soft top and it warms the tranny enough to shift well. But somedays i just dont have time for a warm up and have to start and go. Now other than the noticable things like cold tranny is there anything harmful being done to the engine because of a cold start like that?

Btw OP i reaplaced my caps in the PCM and that helped with cold starts and i also before starting her up let it sit in the key position right before crank for a few secs to get.some juice flowwing through the PCM found it helps cold starts too.
01-04-2013 07:52 AM
Gohot I lived in Utah for a while, and there were plenty of times it was 19 or so below. I had a diesel space heater. A few minutes with it blowing under the vehicle made all the difference. And of course either a block heater or an in line radiator hose heater worked good. There were times when it got so cold, I had to start the truck every couple hours through the night to keep it from just freezing dead. Your cheapest bet, a radiator hose heater, for ease of installation, but a block heater would be better, one that goes in a freeze plug hole. They make heat blankets for batteries too, but I never had one. Would of liked to though.
http://www.mopar.com/part/82300778?s...=276046&b=jeep
01-03-2013 10:05 PM
Yeahbuddy I got 2:optimums in my 1993 2.5L. It never has trouble cranking in freezing temps
01-03-2013 09:26 PM
goatman Don't run your engine "to warm it up" if you are not driving it. Puts more wear and moisture in the engine than anything else. Only run it if you are driving somewhere as an engine needs a load AND actual run time to get to full temp.
01-03-2013 07:46 PM
89quest I did ask about that and was told it would be fine. I plan on going to Old Orchard Beach in Maine this summer alot and wanted to know if I had to change it for the warmer temps.To be VERY,VERY, basic the lower number 5w means it stays thinner in cold, the 30w is the standard weight when its warm. I have seen technical explanations for this on the forum, I understand them just dont ask me to explain it.LOL Can't wait for 90 degree days so I can see how it feels with the top off!!!
01-03-2013 06:26 PM
1990JEEPYJ
Quote:
Originally Posted by 89quest View Post
I have a 89yj and just replaced my tranny fluid with 5w-30w motor oil. It was -12 here in New Hampshire last night.Starting last month it started shifting hard first thing in the morning and I hadn't done it since I bought it a few months back, the guy that owns the shop that works on my jeep rebuilds trannys for a large construction company and said that weight oil would work good for me in these colder temps. I have put on about 1000 miles and it shifts great so far. I dont know about your starting problem, as for me I start mine and let it idle for about 15 minutes If Im not driving it every day. I know there are alot of opinions regarding tranny fluid, this is whats working for me only. Good luck!!!
I have heard of using 10w-30 too. Do you know if it does good in the summer temps? Gets around the 90s in the summer here.
01-03-2013 06:24 PM
89quest Im always glad to pass along any helpful info, this forum has been a life saver for me these past few months.
01-03-2013 06:19 PM
jeff_in_rc
Quote:
Originally Posted by 89quest View Post
I have a 89yj and just replaced my tranny fluid with 5w-30w motor oil. It was -12 here in New Hampshire last night.Starting last month it started shifting hard first thing in the morning and I hadn't done it since I bought it a few months back, the guy that owns the shop that works on my jeep rebuilds trannys for a large construction company and said that weight oil would work good for me in these colder temps. I have put on about 1000 miles and it shifts great so far. I dont know about your starting problem, as for me I start mine and let it idle for about 15 minutes If Im not driving it every day. I know there are alot of opinions regarding tranny fluid, this is whats working for me only. Good luck!!!
I think I will try the 5w-30w motor oil in my tranny, thanks!
01-03-2013 06:18 PM
jeff_in_rc
Quote:
Originally Posted by 1990JEEPYJ View Post
Yeah my dads cummins we plug it in every night. Don't have a floodlight but would a trouble light work? I know those suckers get HOT!
Any kind of heat source will do the trick!

Quote:
Originally Posted by Natdog View Post
Yea i never thought about doing that. My dad has a 97 frd diesel and does the same thing he has to run a 100 foot extension cord to plug it in. But i thought it was becous the glow plugs and the diesel needs to be warm to combust. Never thought about putting a light of some sort under the hood to help it but its worth a try! And yea the gears eventually get easier as the trans gets warmer!
It's not the glow plugs that you are keeping warm, it's the motor and engine oil. Makes it way easier to start when really cold. The glow plugs only come into play when the engine is cold to help with combustion and once running they shut off.

Let me know how the light trick works guys!
01-03-2013 06:03 PM
89quest I have a 89yj and just replaced my tranny fluid with 5w-30w motor oil. It was -12 here in New Hampshire last night.Starting last month it started shifting hard first thing in the morning and I hadn't done it since I bought it a few months back, the guy that owns the shop that works on my jeep rebuilds trannys for a large construction company and said that weight oil would work good for me in these colder temps. I have put on about 1000 miles and it shifts great so far. I dont know about your starting problem, as for me I start mine and let it idle for about 15 minutes If Im not driving it every day. I know there are alot of opinions regarding tranny fluid, this is whats working for me only. Good luck!!!
01-03-2013 05:59 PM
Natdog Yea i never thought about doing that. My dad has a 97 frd diesel and does the same thing he has to run a 100 foot extension cord to plug it in. But i thought it was becous the glow plugs and the diesel needs to be warm to combust. Never thought about putting a light of some sort under the hood to help it but its worth a try! And yea the gears eventually get easier as the trans gets warmer!
01-03-2013 05:59 PM
1990JEEPYJ
Quote:
Originally Posted by jeff_in_rc View Post
Well it's been as low as 15 degrees here and yes it takes a bit to get her started. Is the Jeep parked someplace you could run an extension cord to and put a 200 watt floodlight, or something simular, under the hood on the carb side of the motor? Something to create heat will help it start when it's that cold. My diesel Chevy has an engine heater that I have been using and it makes a huge difference.

And your shifting will be stiff until you drive it for a bit to warm up the oil in the transmission, just be patient it will get better.
Yeah my dads cummins we plug it in every night. Don't have a floodlight but would a trouble light work? I know those suckers get HOT!
01-03-2013 05:50 PM
jeff_in_rc Well it's been as low as 15 degrees here and yes it takes a bit to get her started. Is the Jeep parked someplace you could run an extension cord to and put a 200 watt floodlight, or something simular, under the hood on the carb side of the motor? Something to create heat will help it start when it's that cold. My diesel Chevy has an engine heater that I have been using and it makes a huge difference.

And your shifting will be stiff until you drive it for a bit to warm up the oil in the transmission, just be patient it will get better.
01-03-2013 05:38 PM
Natdog Mine does the same things its an 1988 and a 2.5 also but the coldest its gotten round here has ben 38F not nearly as cold as where u are but cranks slowwly but starts eventually and gears hav trouble also when cold like that! I would like to see what can be done to help.
01-03-2013 05:16 PM
1990JEEPYJ
Its too cold!

So 1990 jeep wrangler yj 2.5l. It has been ~0 degrees Fahrenheit all day today and down to ~-8 last night. I drove the jeep up to the ski resort to go snowboarding Tuesday and she started up in the morning and drove fine in the same temps. Go snowboarding yesterday and we take my friends car. So the jeep sat for 2 nights and a day in ~0 degrees. Went to start it up at 7:30 this morning and she just slowly cranks and cranks. Any ideas? Also if I put in the clutch and try to shift around it is hard to put in gears. Any help is appreciated.

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