Shuttin Down While Driving...

[beboshopower]

My sho shut down..couple time in a week...i heard it could be the fuel pump or an electric problem but at night wit the lights on... my car shuts down faster at night...when it shut down i wait like 15-20 minutes to start it...
SHOpoWeR...iit coul be the module from the fuel injection but im not sure....please help clues..

 

[1993MTXSHO]

CPS (crank position sensor), id put money on it. Is your water pump leaking? What happens is the wp leaks on the cps and kind shorts it out. When you wait it drys up and then will work fine again. When was your last 60k maintainance?

 

[trevor404]

I fully agree with "1993MTXSHO".
Same thing happened to me because my water pump was leaking straight down onto my crank position sensor. I just replaced the water pump and stopped the leak and I haven't had the problem since.

 

[hawkeye18]

+eleventy billion.

CPS! Child Protective Services!

 

[beboshopower]

i have no leaks from the water pump thoe..are their other reasone for the cps to mess up....

 

[1993MTXSHO]

i have no leaks from the water pump thoe..are their other reasone for the cps to mess up....

it goes bad

 

[93rev2sev]

Too many heat cycles + Age = brittle insulation. I would bet that the housing for the CPS electronics(the plastic head of the sensor) has developed a hairline crack and as that crack expands with heat...it gets bigger.

Be on the lookout for scale buildup and rust below the waterpump. Even though you say you aren't losing coolant, it would not take much moisture to short out a CPS with cracked insulation.

 

[hawkeye18]

it doesn't take a leak. It's designed to "weep" out of a hole at the bottom... that's why it's called the "weep hole". it weeps out that hole... right onto the CPS. Not the best of designs.

 

[beboshopower]

Too many heat cycles + Age = brittle insulation. I would bet that the housing for the CPS electronics(the plastic head of the sensor) has developed a hairline crack and as that crack expands with heat...it gets bigger.

Be on the lookout for scale buildup and rust below the waterpump. Even though you say you aren't losing coolant, it would not take much moisture to short out a CPS with cracked insulation.

is their anyway that i could test it out to know is that...cuz electrical part have no refund

 

[hawkeye18]

Unfortunately, not really. The upshot is, how long's it been since it was last replaced? As you've already found out, it's really not a part that you want to strand you on the road.

I'm 98.7% positive it's your crank sensor. It is probably one of THE most common maladies with this car, and it is pretty much guaranteed to happen to everyone on this forum (including me! twice!) sooner or later, if it hasn't already.

Welcome to the club.

 

[1993MTXSHO]

:laugh_ti: if you replace a cps and find that wasnt your problem, you woulndt take it back out to return it anyway

 

[93rev2sev]

:laugh_ti: if you replace a cps and find that wasnt your problem, you woulndt take it back out to return it anyway

indeed

 

[beboshopower]

Unfortunately, not really. The upshot is, how long's it been since it was last replaced? As you've already found out, it's really not a part that you want to strand you on the road.

I'm 98.7% positive it's your crank sensor. It is probably one of THE most common maladies with this car, and it is pretty much guaranteed to happen to everyone on this forum (including me! twice!) sooner or later, if it hasn't already.

Welcome to the club.

i dont think the cps was never replace in this car because im the second owner im buyin the cps today and ima let u guys.....an yester i turn my car on for 5 minutes to switch parking an before i turn it off i accelerated o liike 4000 rpms its just turn off by its self and didnt start untill the next morning an ran find.......

 

[beboshopower]

unfortuanally im goin to replace the cps today...cuz last night it did it again an when i open my i touch the top of the fuel injection an it was really hot after a 5 minute start...

 

[93rev2sev]

Update?