Jeep will turn over but not start.

Asked by Sep 24, 2016 at 01:46 AM about the 1999 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

My jeep will not start at all. It ran fine around this
time last year but slowly it started acting up almost
like it was running out of gas. Then a few months
ago I took it from ky to Iowa and stayed for about a
week then the day I got back to ky it stalled out and
died. And it sounded like it was running out of gas
but it didnt. And so I put all new spark plugs in it
but that didn't work and I took off my fuel line to
see if it was getting fuel (it was) and it still didn't
run so after it sat there a couple days I went to
start it back up again but I messed with the cps on
top of the distributor and it started. Then a couple
days later it stopped running all together and I've
since changed out the fuel pump cleaned the
injectors changed the cps distributor and rotor and
even cleaned out the map sensor. But I had the
computer scanned and only found one code that
popped up was p1491 and all my other readings
were normal. I have no clue what is wrong with my
jeep. Please help me.

4 Answers

7,385

First, when you checked and say it had fuel, did it have enough pressure like 35psi or you just noticed some fuel coming out of the line. The P1491 is (PWM) fan relay, did the vehicle overheat? if it did, you might've blown a head gasket or cracked the head. If it didn't overheat, you may have a bad (PWM) fan relay, but it shouldn't keep it from starting up. Spray some brake cleaner in the throttle body and see if it starts for a bit, if it does, you have a fuel issue.

1 of 1 people found this helpful.

I just took the connector off at the fuel rail and seen gas coming out (I don't have a pressure tester) and it did over heat once but for only 3-5 mins and I shut it off immediately and I checked all the spark plugs and oil and there isn't any water in there. But I did get it to start about 2 weeks ago for about 5 seconds using ether.

7,385

If it started for a bit with ether, u have a fuel issue. Goto ur local auto parts store and borrow a fuel pressure gauge so u don't have to buy one. I know auto zone had them u just leave a $20 deposit

Okay thank you very much I'll check it out. I just assumed my pressure to be fine since I put a brand new pump in it and I use fuel treatment/injector ckeaner every so often.

Your Answer

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 70,648 nationwide Grand Cherokee listings starting at $1,045.

ZIP:

Jeep Grand Cherokee Experts

  • #1
    inuevafreak
    Reputation
    2,120
  • #2
    Tom Demyan
    Reputation
    1,890
  • #3
    thejeepdoctor
    Reputation
    1,830
View All

Related Models For Sale

Used Jeep Cherokee
365 Great Deals out of 47,069 listings starting at $2,795
Used Jeep Wrangler
314 Great Deals out of 16,229 listings starting at $2,500
Used Ford Explorer
858 Great Deals out of 63,389 listings starting at $995
Used Dodge Durango
305 Great Deals out of 21,420 listings starting at $2,195
Used Toyota 4Runner
299 Great Deals out of 21,851 listings starting at $1,700
Used Chevrolet Tahoe
652 Great Deals out of 39,510 listings starting at $1,000
Used Ford F-150
2,317 Great Deals out of 183,061 listings starting at $1,000
Used Chevrolet Silverado 1500
2,129 Great Deals out of 167,340 listings starting at $1,995
Used BMW X5
440 Great Deals out of 12,266 listings starting at $2,000
Used Chevrolet Camaro
416 Great Deals out of 30,788 listings starting at $3,550
Used Ford Mustang
725 Great Deals out of 38,316 listings starting at $895

Used Cars For Sale

2018 Jeep Grand Cherokee Laredo 4WD For Sale
3,846 listings starting at $27,288
2017 Jeep Grand Cherokee Laredo 4WD For Sale
5 Great Deals out of 2,871 listings starting at $23,999
2016 Jeep Grand Cherokee Laredo 4WD For Sale
517 listings starting at $27,170
2015 Jeep Grand Cherokee Laredo 4WD For Sale
19 Great Deals out of 842 listings starting at $17,756
2014 Jeep Grand Cherokee Laredo 4WD For Sale
13 Great Deals out of 873 listings starting at $13,688

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.