Why does my Jeep Wrangler have hard start condition?
I did have an issue once before where I changed the fuel pump assembly and the new gasket that came with it was faulty. However, since then, another new pump and gasket have been in the jeep for 3 months and the hard start condition just appeared. I do not have a CEL on.
Why is my Jeep Wrangler running so rich?
The only explanation I have is that one of the old O2 sensors was causing the jeep to run rich, dumping more fuel into the cylinders. Then, when I shut the jeep off, there ended up being left over fuel in the cylinders, basically a flooded condition.
Why does my Jeep Cherokee Run rough and hesitate?
The running rough and hesitation come after the jeep is warmed up, not immediately after starting when cold. So this indicates a potential o2 or other computer related issue? The o2 sensors are original I believe, so they’re probably due to be changed.
How to get gas out of a Jeep Wrangler?
6) once the fuel rail is separated from the manifold there are clips securing each injector into the rail, remove the clips and you can pull the injectors out. – Put an old towel down under the rail to collect gas as the rail should be full. I remove injector 6 first and elevate the rear, then remove 1 to let the fuel run out.
Where was the 1999 Jeep Wrangler last serviced?
Purchased on 07/09/99 and owned in CA until 05/07/21. Driven an estimated 6,759 miles/year. Last serviced at 147,181 miles in San Leandro, CA on 05/01/21 • V… No accident or damage reported to CARFAX.
What causes a Jeep Wrangler to run rough?
If its running rough from the get go its less likely to be a sensor issue and more likely to be a physical one, if its something that shows up once your warmed up its more likely to be computer or sensor related. I haven’t pulled the fuel rail yet to check injectors.
I did have an issue once before where I changed the fuel pump assembly and the new gasket that came with it was faulty. However, since then, another new pump and gasket have been in the jeep for 3 months and the hard start condition just appeared. I do not have a CEL on.
If its running rough from the get go its less likely to be a sensor issue and more likely to be a physical one, if its something that shows up once your warmed up its more likely to be computer or sensor related. I haven’t pulled the fuel rail yet to check injectors.
Can a hard cold start make a car run better?
After starting it runs a bit rough for a few minutes. I’ve suspected the fuel check valve going bad and have turned the key to on for 2-3 seconds, off for 2-3 seconds, 3 times before trying some cold starts and this makes no difference.
6) once the fuel rail is separated from the manifold there are clips securing each injector into the rail, remove the clips and you can pull the injectors out. – Put an old towel down under the rail to collect gas as the rail should be full. I remove injector 6 first and elevate the rear, then remove 1 to let the fuel run out.
Why does my Jeep Wrangler keep stalling?
Most stalling problems can be narrowed down to these two areas. Now those are two very wide-ranging categories so we’ll break down the usual suspects that could cause your Jeep Wrangler to stall.