|06-04-2010 03:03 PM|
|kik||It does seem like you have a bad batch of fuel and/or water/contaminants in the tank. At this point, since the tank is an 87 a new fuel tank is probably a good idea and fresh gas.|
|06-04-2010 08:11 AM|
|06-02-2010 02:21 PM|
|Garyk||Just cause the carb is hissing does not mean there's gas going in. If the carb has a bowl drain, drain the bowl into a clear container and see if has any water in it. At this point it appears to be fuel issue.|
|06-01-2010 08:50 PM|
thanks for the input, but I replaced the ignition control module, and its still doing the same thing. Didn't even get around the neighborhood (less than 1 mile) before it jerked, sputtered, and lost power. I downshifted, saved it, than it died.
I did notice, while its doing its impression of a bucking bull, if I step on the gas, I can hear the carb "hissing", so if the gas is going through, does that mean its a spark problem.
If anyone knows what else I could replace, please let me know. Few more attempts, and this POS is up on autotrader.
So far, I have done...
fuel lines and filter
ignition control module
spark plugs and wires
distributer cap and rotor
what could it be???
|06-01-2010 08:21 AM|
found a store that has the ignition control module in stock, going to pick it up this afternoon, and put it on tonight. I will let you know if it does the trick!
|05-30-2010 04:40 PM|
thanks for the input. I was unable to get a fuel pump anyways. I have to order it, soooo, I am going to inquire about an Ignition control module.
|05-28-2010 02:49 PM|
|05-28-2010 01:02 PM|
|05-28-2010 12:47 PM|
|Garyk||I did not see where you changed the fuel filter..|
|05-28-2010 12:35 PM|
|South23||Woah, looked up a "spark box", couple hundred bucks! Gonna go to that as last resort. Its got a full tank of fresh gas, 93, from a different gas station then I filled it up from the last time, because I thought that might be it too (I have had a similar problem in my boat). But in my inspection, I see there is a moist spot on the blcok where the fuel pump bolts on! could this be a very slight leak, allowing gas out and air in? could this be the culprit? I am going to try and track down a gas pump to put on tonight, see if that helps.|
|05-28-2010 10:01 AM|
|kik||With my 89 4.2 I had the same thing happen. Replaced everything and still happened. An old mechanic told me to replace the "spark box" (Ignition Control Module). I did and it has never run better. Good luck.|
|05-28-2010 09:21 AM|
sounds like water in the gas IMO
make sure your coil wire is secured really good to, sometimes I've seen 'em pop off a little on the nipple. It will run fine until you rev up the RPMs a bit.
|05-28-2010 09:08 AM|
|05-28-2010 08:58 AM|
gonna start by looking for some fuel leaks.
Drivebytruckerz, love the name by the way....great band!!
|05-28-2010 08:50 AM|
|drivebytruckerz||Air, Fire, Fuel.|
|05-28-2010 08:44 AM|
|4Jeepn||I would re check the vacuum lines, those are usually where some issues pop up.|
|05-28-2010 08:25 AM|
|drivebytruckerz||Look for a leak (even a tiny one) in your fuel pump (an all parts around and associated with the fuel). If air is getting sucked in somewhere you'll get these types of issues.|
|05-28-2010 08:21 AM|
New Jeeper. Fuel Issue?
Ok, bought a 1987 YJ, 4.2L about a month ago. Jeep looks amazing, only issue when I purchased was a sputtering/hesitation/bucking when trying to accelerate. Seemed like a cut & dry carb issue, so I upgraded to the Weber carb, rather then money on a rebuild.
Since the purchase, I have (myself) put in...
Battery,plugs,wires,dist. cap, rotor, starter,starter relay,oil change,pcv valve,ignition coil,valve cover gasket.
Then I took it to a mechanic to install the carb, and adjust it, and connect all the vacum lines correctly.
After the carb install, ran great for two days. Then, the bucking/sputtering/hesitation (and ocassionaly stalling while driving) came back. But, it only happens after about 10-15 minutes of steady driving, and only at about 35-40 mph or faster. Also, if I can fight past the bucking and keep my foot in it, 45 is top speed, no more acceleration. If I am just doing a short 5 minute trip, no problem. And if it starts happening, and I slow down to below 30, I can get home.
With all the ignition stuff I have replaced, I am thinking its a fuel issue. Could this be fuel pump? or could the brand new weber carb. be bad?
I don't want to regret this purchase.