- Location
- San Diego
its a simple resistance test. an auto parts store would know exactly where. thats how i found out mine was bad. but im sure someone on here knows the method.
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Starts fine, drives fine, bucks, sputters and dies randomly?
- Thread starter tayman
- Start date
tayman
NAXJA Forum User
- Location
- Niceville, FL
Cool. I'll check the FSM. Easier to ask the crowd first, though. Usually more precise, too. The FSM isn't always very clear.
cruiser54
NAXJA Forum User
- Location
- Prescott, Az
You can remove a plug, plug it into the plug wire, ground the plug and crank over the engine. Must be a blue spark, not orange. Could also just get a used one from the JY and try it.
Four2score
NAXJA Forum User
- Location
- San Bernardino Peak
Having the exact same issue with my '95 which has the 4.0 HO.
Dies every few minutes but then starts right back up. I do have a new coil in box for it, guess I could try swapping it out & see what happens....
Dies every few minutes but then starts right back up. I do have a new coil in box for it, guess I could try swapping it out & see what happens....
tayman
NAXJA Forum User
- Location
- Niceville, FL
Well, I haven't driven the heep a TON lately, but simply adjusting the old TPS seems to have done the trick. It still stumbles a little bit when cold, but once warmed up, it seems to be running fine No dying cold anymore either. As long as it keeps up this way, I'll swap in the brand new TPS and call it good.
- Location
- MilkyWay Galaxy
Cold weather problems could be a sign that one of the temperature sensor is going bad. The CTS and IAT, coolant and air intake temperature sensors. They can be tested with a $10 ohm meter cold and hot (boiling water and ice water) and compared to the FSM specs.
- Location
- MilkyWay Galaxy
Has anyone had any luck finding Renix IAT sensors this year that you know of?
tayman
NAXJA Forum User
- Location
- Niceville, FL
Cold engine, not cold weather. Air temp doesn't seem like it matters much, but maybe a little.
cruiser54
NAXJA Forum User
- Location
- Prescott, Az
Haven't been looking when at the JY cuz I'm usually "on a mission".
I'll add that to my JY list along with rubber radiator mounts and scrounge what I can.
- Location
- MilkyWay Galaxy
I was referring to new ones, not JY.
- Location
- MilkyWay Galaxy
And the difference is???? NONE!!! As the intake manifold heats up, it preheats the intake air to the engine!!!!!
cruiser54
NAXJA Forum User
- Location
- Prescott, Az
So you wouldn't want used ones? Is the failure rate that high on these?
- Location
- MilkyWay Galaxy
Personally I do not use, used parts at all if I can get new ones for $10-$20, not worth the effort to me.. except maybe an expensive body panel, bumper. There are exceptions, but when I fix something, I go to brand new parts as a rule!
If new ones are no longer made, and I get desperate, then I might use a known good used one. Somebody here was looking for one 2-3 months ago, and asked again a week or 2 ago, and so far no one had found the Renix ones anywhere including me.
But right now might be a good time to start grabbing them as spares in case we never see new ones again?
If new ones are no longer made, and I get desperate, then I might use a known good used one. Somebody here was looking for one 2-3 months ago, and asked again a week or 2 ago, and so far no one had found the Renix ones anywhere including me.
But right now might be a good time to start grabbing them as spares in case we never see new ones again?
- Location
- on the beach in Ocean View, VA
that "someone" was me, and I haven't seen any available in the aftermarket in about a year-- not needing one now, but still looking for a spare. I tested my last spare, only to find out it was junk..... now I can't sleep 'til I find a replacement spare.:looney:
- Location
- MilkyWay Galaxy
I checked again recently and still can not find any on the internet that look right.
tayman
NAXJA Forum User
- Location
- Niceville, FL
I'd tend to disagree... colder it is, the longer it takes for the manifold to heat up. It makes a bit of difference, especially when my hot air line is disconnected.
xjstealthmode
NAXJA Forum User
- Location
- Fort Mohave, AZ
im having some what of the same problem with my jeep two days ago i was driving to work and it started bucking and sputtering and then at the stop light it died i had two buddies with me so we pushed and i got it bump started and we drove maybe 5 miles and it start acting up again so we pulled over let it sit and it started up again so we drove again and got about 4 miles from work and it died again this time it wouldnt start at all ive done a few test i have taken a jumper wire from the plug straight to the battery and the pump kicks on and i have checked the wires going into the fuel pump relay and they have power not sure what else to check what do you guys think might be the problem
tayman
NAXJA Forum User
- Location
- Niceville, FL
Yours sounds like it could be the CPS.
so I was wrong... my problem is still there. it didn't buck this time, but the RPM's dropped sharply while at idle, a few times, and randomly but within 30 seconds or so.
It happened on a low tank, but it's happened full, as well. It's almost acting as though it's sucking air into the fuel line.
It seems, also, that my fuel pump is noisier than usual...
xjstealthmode
NAXJA Forum User
- Location
- Fort Mohave, AZ
is that the white plug lookin thing on the inside of the driver side fender by the air box
cruiser54
NAXJA Forum User
- Location
- Prescott, Az
That's the fuel pump ballast resistor if it has a wire going to each end of it.
