Starting Problems after Sitting Over Night

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

jcamaro

TYF Newbie
Joined
Dec 28, 2010
Posts
11
Reaction score
0
My 1999 is giving me problems after it sits over night or for a few days. It's not a cold start problem because here in Florida we do not get cold weather. It cranks fine but the way I get it to start is I put the key in the crank postion and try to start then keep shutting it off and try to start. You can hear the fuel pump go on and the pressure is 58lb, the pump was changed about 6 years ago. When it does start it runs rough till I drive it awhile. Acts like a fuel problem, I have never changed the injectors or the fuel pressure regulator it has 150000 on the clock. I have maintain it well changing stuff as it goes and it runs great other then this start problem. There are no codes. How do I check the fuel pressure regulator? Any ideas or areas I should check?
 

SunlitComet

OBS Jedi-Do Good
Joined
Sep 30, 2010
Posts
16,206
Reaction score
188
Location
unknown at this time.
get a 0-100 psi fuel pressure tester and screw it in the test port on the fuel line above the engine. can borrow one from autozone or oreilly. may not be the pump tho as you describe your starting method i would strongly recommend you test the ignition switch circuits for faults. also look at your relays and fuses under the hood as well as their respective sockets. make sure there is no burned up pieces.
 
OP
OP
J

jcamaro

TYF Newbie
Joined
Dec 28, 2010
Posts
11
Reaction score
0
How would I go about testing the ignition switch circuits for faults Do you think it may be the switch? The actually switch is down on the steering column am I right about that?
 

SunlitComet

OBS Jedi-Do Good
Joined
Sep 30, 2010
Posts
16,206
Reaction score
188
Location
unknown at this time.
the switch is at the other end of the key lock cylinder. it is the massive wire connector that is near the bottom half of column.

it is a test to start first based on how you describe it.

do you have a multimeter around for volts dc and continuity testing? if so i can get you the breakdown of how the switch works and the connector views so you can see the correct wire placement on the connector to do the testing.
 
OP
OP
J

jcamaro

TYF Newbie
Joined
Dec 28, 2010
Posts
11
Reaction score
0
Won;t start after sitting

Yes I have a meter so anything you can inform me of would help. Also how can I check the fuel pressure reg? I have a feeling your right about the switch because the other day it started but I lost the radio and something else I don't remember what it was, but I had to shut it off and restart and the radio came back on. I just don't understand why it is only after it sits. You would think if it was a switch it would do it any time. Thanks
 

SunlitComet

OBS Jedi-Do Good
Joined
Sep 30, 2010
Posts
16,206
Reaction score
188
Location
unknown at this time.
if you are losing the juice that way i am inclined to think the ignition switch might be worn. however, note that the fuses for those separate items are fed from two separate power feed that enter the switch. and there is probably some much more on the other fuses that may be working find. because you say it sits i would include a possible thermal issue to consider as well. and the safety switch and brake switch use one wire path to do the job. so if it does not work in park you can take into consideration possibly the the tranny position switch on the outside of tranny on the shift linkage or something is disrupting the power path when in park but when the shifter gets moved down the is no interference. basically the wires could be getting damaged in the column.
 
OP
OP
J

jcamaro

TYF Newbie
Joined
Dec 28, 2010
Posts
11
Reaction score
0
Sorry for taking so long to answer but what do you mean by a thermal issue? Also how can I find out about the break down of the switch? This thing is driving me crazy. Now when I do get it started it misses some what till it warms up. I live in Florida so it's not cold. I checked fuel pressure again and it read 53lbs and held when shut off. It acts like no spark then starts, can it be a crank sensor? Where can I find out the specs on these sensors? The cruise stopped working awhile back also. The brake switch is in a bad spot. I have tried putting it in neutrel but no luck. It's just strange once it starts I can go shopping with no problem till the next morning and then it don't start again. It seems to be getting worse. Can you help me with any ideas and specs. How would a bad fuel reg act?
 
OP
OP
J

jcamaro

TYF Newbie
Joined
Dec 28, 2010
Posts
11
Reaction score
0
The more I think about this it can't be a electrical problem. What would be effected by sitting all night. Once it starts it is good all day. A switch would have no effect by the weather.
 

SunlitComet

OBS Jedi-Do Good
Joined
Sep 30, 2010
Posts
16,206
Reaction score
188
Location
unknown at this time.
Engine heat could be causing the thermal issue overall. But if it has no spark then the chances of it being non electronically is so nil.
 

Forum statistics

Threads
132,953
Posts
1,877,160
Members
97,869
Latest member
dwebster

Latest posts

Top