My 2003 Jeep Grand Cherokee Laredo 2WD Automatic Trans, 6 cyl, 4.0 eng. turn off during regular driving and won't start again for a long time. Sparkplugs has been changed and problem persist

Asked by Aug 10, 2013 at 03:46 PM about the 2003 Jeep Grand Cherokee Laredo

Question type: Maintenance & Repair

It have a brand new battery, and brand new sparkplugs, Fuel Injector cleaning liquid has
been added to fuel tank. The first time it happend I added a little bit of fuel to the engine
and it started again, last night I did the same and did not start.

6 Answers

7,225

sounds like fuel pump. bang on bottom of fuel tank while someone turns eng. over. When you turn the key to the run position, the pump should come on for abt. 3 seconds.

7,225

could also be ign. coil or crankshaft position sensor

7,225

sorry not coil as yours is a coil strip

I am aware of the fuel pump coming ON for a couple of seconds when the key is turned to the run position, it happens every time. I guess this means that the Pump is OK??. could it be the fuel injectors, they have never been changed, I don'y know if they can get flowed with fuel, and the when they dry up the engine starts again. I am also guessing that may be something is overheating and when it cools off the engine starts... Again, is only my guess, I know little about this.

By the way Mark, thank you for trying to help, I am trying to figure this out by myself, and see if I can do something to fix it without spending a great amount of money that I don't have at this time. Thank you again.

7,225

just because the pump comes on, doesnt mean its creating pressure. have you ck'd for codes? the crank position sensor is a weak point on these vehicals. Ive seen them go bad and not set a code. They are kind of a booger to replace. Its on the top of trans. bell housing, lt. side.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 69,767 nationwide Grand Cherokee listings starting at $700.

ZIP:

Search Jeep Grand Cherokee Questions

Jeep Grand Cherokee Experts

#1 inuevafreak
inuevafreak
Reputation 1,990
#2 Tom Demyan
Tom Demyan
Reputation 1,770
#3 thejeepdoctor
thejeepdoctor
Reputation 1,670
View All

Related Models For Sale

Used Ford Explorer
746 Great Deals out of 74,482 listings starting at $750
Used Jeep Wrangler
285 Great Deals out of 18,942 listings starting at $3,295
Used Toyota 4Runner
283 Great Deals out of 20,304 listings starting at $2,700
Used Dodge Durango
245 Great Deals out of 22,762 listings starting at $1,499
Used Chevrolet Tahoe
609 Great Deals out of 27,547 listings starting at $600
Used Ford F-150
2,395 Great Deals out of 210,249 listings starting at $895
Used BMW X5
392 Great Deals out of 15,828 listings starting at $1,300
Used Chevrolet Silverado 1500
1,985 Great Deals out of 160,214 listings starting at $1,995
Used Chevrolet Camaro
136 Great Deals out of 35,103 listings starting at $1,995
Used Jeep Liberty
229 Great Deals out of 7,185 listings starting at $999
Used Honda Accord
681 Great Deals out of 82,246 listings starting at $500

Used Cars For Sale

2017 Jeep Grand Cherokee Laredo For Sale
3,104 listings starting at $23,990
2016 Jeep Grand Cherokee Laredo For Sale
420 listings starting at $20,977
2015 Jeep Grand Cherokee Laredo For Sale
174 listings starting at $19,990
2014 Jeep Grand Cherokee Laredo For Sale
3 Great Deals out of 216 listings starting at $14,985
2013 Jeep Grand Cherokee Laredo For Sale
129 listings starting at $12,996