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90 cadilliac de ville 4.5 dtc code 52/missfirer loss of power in drive ,replaced plugs runs better,still no power nd miss fire

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Have the battery & alternator tested

Appears to be ecm voltage issues

Posted on Dec 12, 2012

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: missfire

Have you replaced the coil yet? I assume by all 4 cylinders misfiring you mean P0300 Random Misfire? It could be a number of other things - a faulty fuel injector, coil, etc. Read this article for more info on random misfires - http://www.obd-codes.com/p0300

Posted on Dec 14, 2008

  • 14036 Answers

SOURCE: loss of power on acceleration. engine bucking.

check transmission fluid.change fuel filter and air filter.try changing up on where you buy gas .because bad gas causes problems.

Posted on Jun 26, 2009

  • 2 Answers

SOURCE: plug wire burn spots, spark plugs fouling, loss of power, misfire

optispark distributor fails. go to summitracing.com and search optispark. it'll pop right up

Posted on Jul 12, 2009

  • 2 Answers

SOURCE: 2003 Yukon, rough idle, extreme power loss,code

My brother had a similar issue with his Ford F-150, he needed the fuel injectors replaced. Good Luck!

Posted on Sep 30, 2009

  • 7353 Answers

SOURCE: code po304 #4 cylinder mis fire

ck if you have spark at the coil for that cylinder. check the plug wire closely. if it has spark at the coil, then replace all the spark plug wires.

Posted on Oct 12, 2009

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2 Answers

Car starts and runs but in reverse starts shaking SES lights up and blinks. Have changed the plugs but are getting a P0340. It's an 1998 Saturn 112,000 miles. What could it be?


DTC P0340 will set if the PCM voltage on cylinder #4 signal wire is not pulled to ground (cam signal pulse) when:
Diagnostic Aids
Important: A cam pulse missing may not affect engine operation.
?€¢
An open or high resistance on the #1 plug wire or plug will result in DTC P0340 setting.


?€¢
Inspect the EIS towers and plug the wire connections for corrosion or other signs of poor retention at connections.


The electronic ignition (EI) module supplies a signal to the PCM whenever it determines that the #4 cylinder fired on its compression stroke. Because of opposite coil tower polarity, the simultaneous fir of #1 and #4 cylinders are of opposite polarity as well. Under most conditions, except decel, the waste spark cylinder fires before the compression cylinder in sequence. The EI module can determine this polarity sequence and voltage amplitude by using capacitive pickup plates located under the 1/4 coil. If the module senses a positive to negative sequence and high negative spike when #4 is on TDC, it pulls the PCM cam signal to ground signaling that #4 has just fired on compression. This signal along with the double pulse received from the CKP sensor, synchronizes spark and fuel timing.
Beside plugs , plug wires need to be replaced as well !

Aug 26, 2016 | Saturn Cars & Trucks

1 Answer

When driving my 1997 Audi A 4 1.8t there is a loss of power around 3000 rpm, what could be causing the issue?


run the fault codes and look for a problem area in the vane actuator of the turbo
it could be a sensor problem or a MAP sensor problem
this is indicated by the pressures being generated or not generated by a turbo generating pressure from the throttle opening on acceleration or held at constant speed

Oct 19, 2015 | Audi Cars & Trucks

1 Answer

Miss firing


USA car?
engine runs bad, gross misfiring, and stalls and idle speed all wrong>?
and of course all engines smell of unburned fuel when misfiring..so..
and gross loss of power. from engines. sure that is misfire too.
so lets work MISFIRE
fist what engine is this, sure the HONDA mistake,
its really an Isuzu engine. (abomination car) with USA axles. wow.
2.6L 120 hp (89 kW) I4
3.2L 175 hp (130 kW) V6

which engine, we cant fix engines blind. so...
so i drop to generic answsers...... no eng.
1: ever do the 60,000 mile tuneup,?? if not ?,FAIL she will..
2: are all 4 or 6 spark plugs all firing?into fresh spark plugs>?
3: is compression at or or better than 150PSI? on all cyl.
4: is it flooding?
5: is the check engine light on key on then goes out running?
if the CEL hangs up glowing running then scan the ECU.
scan it and get the DTC error codes.
use any scan tool , (OBD2) plugged into the 16pin DLC connector
near knees.
scan it and find what errors you have, i bet, P030x codes.
those are misfire, x = cylinder that is bad. 0= all.

there is a start.
fuel filter fresh. ? (if found easy near gas tank)




Feb 17, 2014 | 1996 Honda Passport

1 Answer

Loss of engine power, loud whistling noise


Exhaust manifold leak? That's not common. You talking about the VVT near the manifold at the top of engine above the power steering pump? Yes indeed, AC Delco is the only one our engines love. 41-103. Obviously you have P0304, what other codes?

Mar 16, 2017 | 2002 Chevrolet TrailBlazer

1 Answer

2001 vw passat missing on all cylinders running lean


Has the timing belt or chain ever been replaced?

Aug 18, 2017 | 2001 Volkswagen Passat

1 Answer

There is a check engine light on for miss fires but the car dies not seem to miss fire. The electronic controls for the heat and air appear to work but it can be turned up to 90 and blows ice cold or can...


better look at the blender door. this is a vacuum controled door that allows hot or cold air to flow into the HVAC system and blends the temps together to make the desired temp for you, but if this is electronicly controled you might have a temp sending unit bad or even a control unit bad, as for the miss fire most people wouldn't know a miss fire from a bump in the road anymore. engines anymore if there is a missfire code, there is a missfire, find out what cylinder if missfiring and replace the sparkplug, wire, or coil, you can have the wire loaded to see if its the spark plug or not, and then get the coil tested as well, this will say you money inthe long run since replacing random parts if a waste of money on your part. test it and find the failing part and replace...

Apr 08, 2011 | 1998 Honda Accord

2 Answers

Have codea 12-19-30-41-52-91 f10-32 please help the car i have is a 1990 cad sedan de ville 4.5 engine


ECM Trouble Codes
12-Distributor signal fault
19-Fuel pump circuit fault (short)
30-Idle speed control (isc) motor rpm out of range
41-Camshaft position sensor (CMP) or circuit fault
52-Electric control module (ECM) reset
91-Park neutral position switch or coicuit fault

BCM Trouble Codes
10-Outside temperature sensor or circuit fault
32-Electronic control module (ECM) to Body control module (BCM) fault loss of communcation

Source: Haynes repair manual


Dec 11, 2009 | 1990 Cadillac Deville

2 Answers

2003 f-150, 5.4liter is idling rough, an gives codes p0316,p1270


You didn't specify where you put the seafoam (oil, gas tank, vacuum lines etc) It's very possible that the fuel filter needs changing and the spark plugs may very well be fouled. After seafoaming a car it's a good idea to really open it up to burn off the foam and residue.

May 06, 2009 | 2003 Ford Expedition

3 Answers

Need Help VolksWagon 2000 Jetta 2.0 DTC codes PO-300 PO-302 PO-30


recall for windows is for the "clips"that attach the window to regulator ...run it buy your local dealership they will rebuild both doors for free if they haven't been done yet. as for the missfire codes, if you have a miss clear the codes , run the motor a couple key cycles till mil light returns and then reread codes.if only one cylinder sets code try swapping just the plug with another cyl;s plug , clear codes, rerun till light returns, read codes again if on same cyl it's the coil for that cyl if it moves to the cyl original plug was put into replace plug.....however 90% of the time when you get P0300 and more than one of the other 4 missfire codes it is from a vaccume leak. not all leaks will show with the old fashion gumout test.

Mar 23, 2009 | 2000 Volkswagen Jetta TDI

2 Answers

Where is location for the shift solenoid on a 1992 cadillac de?


The shift solenoids in a 1992 Cadilliac Devillie are on the drivers side of the car, open the hood look at the right side of the motor you will see the upper part of the transmission housing you will see the pan in side the pan are 4 solenoids A and B -TCC - PWM the transmission is a 4T60E you can buy a kit with all 4 for 70.00 at Electrical advantage.net

Mar 16, 2009 | 1992 Cadillac DeVille

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