washed the motor!?!

turbotyphoon69

turbotyphoon69

New member
ok guys, get ready to flame :roll: .....I washed the motor because it was dirty and grungy but i washed it lightly, plus the night before i blew the upper radiator hose so it sprayed coolant all over. But as i drove the truck all the sudden it started to get funny. I was driving around town and ran into WILLinDENVER and chit chatted for a while but thats besides the point. The problem is ever since i have owned the truck it has stuttered every once in a while...but now i go to WOT and it stutters picks up...then goes first but doesnt seem as powerful, then second...then third but the rpm drop to about 2000 and sits there. I connect it to the snap on scanner and it tells me its a Throttle position sensor and i bought the sensor but want to have other input before i risk the money of puttin it on. The draw back for me is that i am about 2k miles over due for a "spring cleaning" and my vacs probably arent right. My plug wires are msds that are not recomended on any of the sites and my spark plugs probably arent the exact recomended ones. I just have this big worry that its my tranny that was built a year ago because i have never had this problem even with bad vacum lines and unrecomended plug wires.

I already got the vac kit so im slowly gettin my stuff together :tup:
 
G

GM TURBO

Sell Out
I spray my engine all the time. Pressure washer generally. Never had a problem.

I'd guess igntion - cracked dist cap.

How long has it been doing it?
 
G

GM TURBO

Sell Out
Sounds like you have all kindsa stuff that is out of order - possibly unrelated to spraying.

MSD wires have been used. Plugs - very important. Vac Lines - even more important. I'd say it isn't the trans if your RPM's are sitting there. If RPM's were moving and the truck wasn't - then I'd go trans :eek:

Will_in_Denver is the man - have him fix it.
 
TYTILIDIE

TYTILIDIE

METH HEAD
Abe, if Will isnt around Ild be more than willing to help you out. If you want to for now, you can check your TPS with an analog volt meter just to be sure. 1st, turn the key to on but engine off, 2nd, locate the wire harness to the TPS. There should be a blue, black and a grey 5v ref wire. The blue wire is your signal to the ECM. The grey like I said is reference. And as Im sure you know the black wire is ground. Puncture the blue signal wire with the pos lead of the analog volt meter and use the neg lead and puncture into the black wire. Turn the voltmeter on and open the throttle a few times and make sure the voltmeter rises smoothly. You can also hold it open all the way and you shouydl get somewhere between 4 and volts with the throttle totally open. If the voltage pauses while you are snapping the throttle open then you have a problem. Check the 5V reference wire just to be safe before you change it out. Just put the pos on the grey and the neg on the black wire. You should have 4.8-5V. Hope this helps. Dont forget Im up there quite a bit, if you need help just let me know.

Mike
 
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