Jeep - Wrangler :: 1994 - Having Weak Spark / Won't Start
Jan 25, 2011
Have replaced distributor, spark plugs, coil, and still have very weak, erratic spark. Plugs getting plenty of fuel, won't start. What else I should do?
View 7 RepliesHave replaced distributor, spark plugs, coil, and still have very weak, erratic spark. Plugs getting plenty of fuel, won't start. What else I should do?
View 7 RepliesMy poor old jeep is having some issues. Here's the stats: 94, 4.0 engine, 240k miles (jeeps am I right?). It started overheating on me so I start with replacing the thermostat. No dice. I noticed it was "weeping" coolant, so I replaced the water pump. No dice. It's still running hot and throughout the process of replacing things and test driving it is now struggling on accelerating/giving it gas to switch gears. It even out right died a couple times. (Air filter was gunky, replaced it.
View 7 RepliesThe problem began with intermittent stalling and now the Jeep will not start at all (no spark). I have had the cap, rotor, primary ignition coil, crank sensor, cam position sensor and PCM replaced without any luck. The repair bills have been brutal. The garage has given up.
View 8 RepliesI own a 98 jeep wrangler. Love the little jeep. But....big BUT...at random it chooses not to start, not sluggish start, dead absolutely no noise. I have spent well over 1500. dollars on new starters, batteries, ignitions, ignition cylinders you name it I have replaced it. This last time it started every time for well over a month, then one evening it just didn't so I let it set for a couple of hours as usual and then it started and we came home. I love my mechanic he is patient and doesn't make fun of me when I ask dumb questions...but this he can't figure out.
View 2 RepliesI tried starting my 2005 Jeep Wrangler yesterday and there wasn't enough charge to get it started. I got a few slow revolutions and that was it. I gave it a jump and it started fine. Drove it for an hour or so and then went to restart it 3 hours after I shut it off and it was dead again. Another jump and I drove it for an hour (home). I was able to start it a few hours after that on its own, though it struggled to a bit.
Tried again this morning and it was dead from sitting overnight. A few other bits of info:
With the key in the ignition, the charge indicator is hovering just above 9V (it is a 12V battery) before I try to start it. When engine is running after start, it jumps to around 12V.
I am pretty sure I didn't leave the lights on or door open overnight. I haven't noticed the engine struggling to start leading up to the dead battery.
After I jumped it again this morning, it seems to be idling very low. In fact, the engine shutoff when I let it idle in neutral with my foot off the gas for a few seconds.
When I got in the Jeep this morning before trying to start it, it had enough charge for the radio and dashboard. When I turn on the lights/highbeams it struggled and the high beam indicator on the dashboard (blue light) was flashing. Battery is not too old. I don't have the receipt with me, but I think I bought a new one 3-4 years ago. The +/- connections are clean with no corrosion. I didn't look too closely, but I didn't notice any obvious connection issues from the battery leading into other components.
I'll probably go buy another battery, but wanted to check with the experts out there to see if there is anything else I should be checking. If I do get another battery
I have a 85 cj7 with a 258 straight 6 and recently when I have been refilling the gas tank she won't start right away and I end up waiting 1 to 2 hours before she will start up and then she drives fine until you have to put more gas and the cycle happens all over again. What the problem could be?
View 7 RepliesVideo of Noise: [URL] .....
I am getting the above noise on startup, it goes away after 5ish minutes. It isn't exactly cold out. So I don't think its the oil viscosity. Its not a bad oil filter flow back valve, and its way longer than the oil lifters should make noises. I don't think it is a cracked manifold, I think the noise would be different.
Jeep wrangler 2005. 4.0L, ~99k Miles
So last week something happened that I've never had happen before. I was dropping my daughter off at school and I noticed that my dash lights weren't on. My headlights still worked and the blinkers did to.
When I got home and parked it, I checked out all the fuses. There was a 20 amp fuse that was blown, so I replaced it and then checked the relays under the hood. I turned on the key to check the dash lights and they still didn't work. The 20 amp fuse blew again, so I replaced it again. Now the dash lights work again.
However, when I tried to start it, it would turn over, but the fuel pump isn't turning on.
Long story short, I've replaced all 4 relays under the hood, installed a new fuel pump and also replaced some bulbs in my taillights and sides over the front tires. It turns over when I try to start it, but the fuel pump still isn't "kicking" on and it won't start. I feel like somehow, power isn't getting to the fuel pump.
I have a 2003 Jeep Wrangler (4 cylinder) that seems to be having a fuel problem.... about a month ago, it started lurching, having a hard time starting, it would lose power on drives and once or twice it has stalled on me while I'm driving on the freeway. I've had to restart my car going 60 mph... if I feel it lurching or surging, I have been able to keep the car going by shifting into a lower gear or taking my foot off the gas.
I just took it into the dealership and spent 1300 to get it diagnosed and fixed. I got a new timing belt, and a whole bunch of other stuff and on the way out, it stalled at the first stop light. Although it seems to be running better, it obviously didn't fix the issue. I took it right back and now they are going to have me bring it back on Monday to 'try to figure it out’. Where should I tell them to look?
Oh, and - I had to get a short fixed from the ignition key (I was able to pull the key out while the car was running) and they fixed it. But now, I can't get any reception on my radio...
My 2004 Rubicon has been having some idling issues. It idles kind of rough (+- 200 RPM) and is hard to start. I tried to start it recently and after 4 cranks, it started then the CEL came on, and has been on ever since. I have recently moved from Washington state to Houston Texas, and the problem starterd here in Texas. I checked the code and am getting a P0505 code. I had a mechanic replace the IAC valve, Checked for vacuum leaks, and cleaned the throttle body. The mechanic says the output from the main computer appears to have burned out, and needs to replace the main computer(for $1000). The mechanic can clear the CEL, but after turning the jeep off then back on it reappears. The mechanic says he verified the computer was the problem by installing a known good computer and it cleared the problem. Does this sound right to you? If my computer is bad, wouldn't my whole operation be affected?
View 4 RepliesMy problem started five months ago and was very intermittent until now. The engine would run rough at start up either cold of hot and then run fine after about two or three miles. Now it runs rough all the time. I have installed a new ignition coil, new spark plug wires and new spark plugs. The engine starts ok but it runs rough and when I pull the spark plug wires one at a time,while it is running, the spark is very weak on cylinders 2 and 4. The spark on the other two cylinders looks good. I have checked the connector on the powertrain control module, which is a EEC-V, and there doesn't seem to be any bad connections there.
View 6 RepliesI have a 2005 Jeep Liberty with about 129K. The car overheated and resulted in changing the head gasket and piston rings. Now the car will not start with all six spark plugs installed. It will only start and run for a short period time with three spark plugs on the driver side installed.
View 19 RepliesI have a jeep grand cherokee 1993 that wont start. I have no spark to injectors. I have change the coil, pcm, rotor, cap, pick up coil, starter, alternator, fly wheel sensor, relayes, wires, fuel pump. I don't know what else to do i need to get it running so I can get rid of it.
View 9 Replies94 camry. 4 cylinder. Coil is located on the strut housing along with the ignitor. The car was running, but overheating.
The last time it ran, it overheated badly, but was parked right away. Fans never came on.
The radiator was leaking, so that was replaced. And since the fans hadn't come on, the temp sensor for the fans, in the bottom of the rad was also replaced.
Now it won't start. It cranks over nicely, and acts like it is missing spark or fuel.
It has spark. Determined by pulling the coil wire from the center of the distributor and checking there.
I used spray starting fluid by pulling the tube from the end of the throttle body and spraying in there. The spray starting fluid should have at least caused a cough or two, if not a short start and run then die... if fuel delivery was the problem.
I have tried it with the temp switch on the manifold connected, and then disconnected. Also tried jumping that connector, so I don't think that temp switch is the problem. (It's the temp switch that has the green connector.)
I am assuming the ignitor and coil are good, otherwise I would not be getting a spark from there.
I've been trying to work out why my 94 Camry isn't starting, and was hoping I could run a few things by you all and see if you think I'm headed in the right direction. So, here's the situation so far.
No leading-up issues of any kind. Just passed a (real) PA inspection and runs great. The car was parked just overnight, running fine the day before. The next day, it wouldn't start at all. Strong turn-over. No attempt to start. I tested a working spark plug by connecting it to the car (pulled out), and then connecting the threads to the negative terminal of the battery. While turning over, there was no spark. I then pulled the distributor cap and rotor. It appears some oil (definitely engine oil) had gotten inside from a previous known leak. The rotor contact was not super clean and looked to have some burnt up oil on it. I cleaned up all the contact points and reassembled. Nothing. Took the cap back off and tested the coil with an ohmmeter, which was all within spec. I have not tested individual terminal from the distributor, because a) I'm not entirely sure of a good way to do this and b) I doubt all four cables went bad at the same time, and if some were firing, it should be attempting to start, no? I suspect it's an issue from the distributor or before.
I had read that a coil with good ohmmeter readings may still be bad, so I ordered a new one. Should be here tomorrow.
Is there anything else I should test or look into? Oh, and is it weird that the headlight fuse keep blowing when I attempt to start the car? Does that give any clues as to the source of the problem?
Sons 94 ranger 4.0 4x4 Auto 185k got him to work yesterday but would not start to bring him home. No spark, checked with timing light, and no fuel pressure. Searched and read alot of tips from Pawpaw so I tried a few things with no luck. Swapped the relays around, inspected coil pack and plugs. CEL was not on and goes out while cranking. I have a OBD scan tool but this truck must be too old or I need finding plug. Crank sensor maybe?
View 7 RepliesHere are my xj specs:
All in standard condition..
One day, I just changed my battery..suddenly my engine get hard to start... Got missfire too... I just change my distributor rotor, plug n wire plug... Why this happen? Now it just crank and cannot start...
I have a 2006 4 cylinder JEEP Wrangler. Right around 50 mph the whole car starts to shake pretty violently. I have to slow down back to 40 to get it back to normal. I can seem to get past this most of the time by waiting to shift into fifth gear until after 50 mph but not always!
View 1 RepliesJeep Wrangler Owners excessive engine oil consumption [URL] .... Caused engine failure with my Jeep. Chrysler aware of problem. Local dealership stating Chrysler may not honor 100,000 mile warranty due to 1missed oil change.
View 5 RepliesVehicle will not exceed 20mph. Vacuum leak can be heard coming from around the intake area on the driver side. Cannot detect where it is coming from. All vacuum hoses seem to be connected.
View 3 RepliesI have a 1995 Jeep Wrangler Rio Grande named El Burro.I have replaced the shocks and am awaiting an alignment next week.The Jeep doesn't shake or jump all over unless I hit a bump and then it jumps all over the place.
View 15 Replies