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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

ohh god i ****ed up my car

  • Thread starter Thread starter johnnyt03gt
  • Start date Start date Aug 26, 2010

johnnyt03gt

5 Year Member
Mar 15, 2008
453
5
29
dallas TX
Aug 26, 2010
#1
  • Aug 26, 2010
  • #1
oh my god i think i ****ed up my car, long story short i washed my engine just now after air drying for 30min, i had to move it. as soon as i started it it sounded and ran like ****, shaking badly best way bad low idleTPS? it's so bad i can't even drive it what do i do now? HELP please
 

68stang351

Founding Member
May 16, 2002
850
9
39
Savoy TX
Aug 26, 2010
#2
  • Aug 26, 2010
  • #2
Take off your coils and make sure water didn't get down there in the plug wells. I bet you that's what it is.
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
95
134
Aug 26, 2010
#3
  • Aug 26, 2010
  • #3
Yeah its just water in the plug Wells.
 

johnnyt03gt

5 Year Member
Mar 15, 2008
453
5
29
dallas TX
Aug 26, 2010
#4
  • Aug 26, 2010
  • #4
god i hope so it's getting late im going to do it tomorrow
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
95
134
Aug 26, 2010
#5
  • Aug 26, 2010
  • #5
If the engine comes up to operating temp with any water in those wells cops will get steam cooked and destroyed.
 

johnnyt03gt

5 Year Member
Mar 15, 2008
453
5
29
dallas TX
Aug 26, 2010
#6
  • Aug 26, 2010
  • #6
Kilgore Trout said:
If the engine comes up to operating temp with any water in those wells cops will get steam cooked and destroyed.
Click to expand...

yeah, car was cool when i started cleaning, as soon as i started it up the misfire was so bad
i turned it off immediately
 

streethorse

15 Year Member
Oct 8, 2005
1,042
6
58
Dallas Texas
Aug 26, 2010
#7
  • Aug 26, 2010
  • #7
Hit the sparkplug wells with a leaf blower or compressed air first then start it
up and let it get hot.
 

Flghtmstr1

Member
Mar 31, 2005
572
4
19
Springfield, PA
Aug 26, 2010
#8
  • Aug 26, 2010
  • #8
Every time I clean my engine bay, this happens. All I do is try to dry it off as best as I can, then take it for a drive to get it up to operating temp. Then I'll park it overnight with the hood up to let it ventilate. When I wake up the next morning, it's fine.
 
0

007

Founding Member
Jan 29, 2002
3,287
24
69
Broke
Aug 27, 2010
#9
  • Aug 27, 2010
  • #9
Maybe its time I cleaned my engine. Its been 9 years after all....
 
S

Smokeurhonda

New Member
May 1, 2003
457
0
0
Maryland
Aug 27, 2010
#10
  • Aug 27, 2010
  • #10
A easy way to prevent the common misfire after engine clean is to get the motor hot first... then spray with water.
 

johnnyt03gt

5 Year Member
Mar 15, 2008
453
5
29
dallas TX
Aug 27, 2010
#11
  • Aug 27, 2010
  • #11
well woke up today expecting the worse all 8 coil packs shot, but to my delight it started right up running perfectly, looks like the dallas tx heat evaporated all the water,

just want to give all you guys a big THANKS,
i was losing my mind yesterday. and if not for your advice i would have ended up putting her
on a tow truck, wasting money i don't have wasting time i don't have. again THANK YOU,

BTW im so happy now going streaking dressed in a see through thong LOL
 

trombonedemon

Well-Known Member
Jun 25, 2009
1,962
39
59
U.S.A, U.S.A., U.S.A.!
Aug 27, 2010
#12
  • Aug 27, 2010
  • #12
Smokeurhonda said:
A easy way to prevent the common misfire after engine clean is to get the motor hot first... then spray with water.
Click to expand...
Yep, I even go as far as cleaning it while the engine is 210 degrees and still running.
One of my fuel injectors popped out and sprayed gasoline every where, needless to say hot gasoline is nausiating. I got a Big Gulp cup and just poured water everywhere there was metal, water didn't have time to get in the sparkplug wells; and I found out that gasoline cleans a dirty engine very well, I wouldn't try this on purpose though.
 

Rejekt

Member
Aug 12, 2010
546
13
18
Raleigh, NC
Aug 27, 2010
#13
  • Aug 27, 2010
  • #13
BTW im so happy now going streaking dressed in a see through thong LOL
Click to expand...



 

johnnyt03gt

5 Year Member
Mar 15, 2008
453
5
29
dallas TX
Aug 28, 2010
#14
  • Aug 28, 2010
  • #14
LOL
 

trinity_gt

10 Year Member
Jan 31, 2003
3,125
81
99
Canada
Aug 28, 2010
#15
  • Aug 28, 2010
  • #15
It bears repeating: The various electrical connections under the hood of a car are weather resistant, not water proof. Any directed water from any source risks shorts and corrosion. Hard water has minerals in it that are left behind when the water evaporates. These minerals can interfere with connections, especially high-impedance ones like O2 sensors. An inside the connectors, wires can corrode and break at the crimps making for very difficult debugging.

What value is there in "washing the engine"? I suppose if you like showing the car but geez...I didn't realize there were so many trailer queens out there. Just go around with a dry microfiber towel and wipe stuff down. Hosing or power-washing is just asking for it...

And honestly, spraying cold water on hot engine components is just asking for fractures or other thermal-shock issues. We let the engines cool completely before pulling spark plugs but dousing a hot, running engine in cold hose water is okay?
 

trombonedemon

Well-Known Member
Jun 25, 2009
1,962
39
59
U.S.A, U.S.A., U.S.A.!
Aug 28, 2010
#16
  • Aug 28, 2010
  • #16
trinity_gt said:
It bears repeating: The various electrical connections under the hood of a car are weather resistant, not water proof. Any directed water from any source risks shorts and corrosion. Hard water has minerals in it that are left behind when the water evaporates. These minerals can interfere with connections, especially high-impedance ones like O2 sensors. An inside the connectors, wires can corrode and break at the crimps making for very difficult debugging.

What value is there in "washing the engine"? I suppose if you like showing the car but geez...I didn't realize there were so many trailer queens out there. Just go around with a dry microfiber towel and wipe stuff down. Hosing or power-washing is just asking for it...

And honestly, spraying cold water on hot engine components is just asking for fractures or other thermal-shock issues. We let the engines cool completely before pulling spark plugs but dousing a hot, running engine in cold hose water is okay?
Click to expand...
I'm just stating the results, the fuel injector closest to the firewall on the passenger side popped out. I had two choices, dump some water and help the engine rid itself of the nausiating gas or just smell fumes for the next 2 weeks while the engine just helps the gas evaporate. I don't make pouring water on my engine a habit but pouring water for this circumstance was neccesary for my well-being.
I don't power wash my engine, I just wipe things down so I can see whats leaking or not. You're right this problem is too common.
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
95
134
Aug 28, 2010
#17
  • Aug 28, 2010
  • #17
I always wash the engine when cold and then I remove every coil pack and remove the water from the wells. There is always water in at least one well.
 

Pearl02

Member
Nov 27, 2004
496
0
16
Kansas City
Aug 29, 2010
#18
  • Aug 29, 2010
  • #18
I guess I've been lucky when washing my engine. I wash it once a year. Never had any problems with it. I use very low water pressure to rinse off th engine. Pearl02.
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
95
134
Aug 29, 2010
#19
  • Aug 29, 2010
  • #19
I wash mine about once a month when it is warm enough to do so.
 
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